Implement find_similar_investors endpoint to enhance investor similarity search; refactor update_investor logic and improve scoring mechanism for better results.

- Updated README.md to reflect new features and architecture.
- Implemented company management routes in app/api/companies.py.
- Enhanced main FastAPI application in app/main.py to include company routes and query processing.
- Improved querying capabilities in app/services/querying.py with natural language processing for investor searches.
- Updated requirements.txt to include necessary dependencies for FastAPI and related libraries.
- Added comprehensive error handling and response formatting for API endpoints.

.gitignore

@@ -8,8 +8,10 @@
 
 /chroma_db
 
-/*__pycache__*/
+*__pycache__
 
 /*.db
 
-/*.cypython-*
+*.cypython
+
+/preprocessor

README.md

@@ -1,342 +0,0 @@
-# LLM-Powered Investor Parser
-
-A comprehensive system for parsing investor data from CSV files and storing it in both SQL and vector databases for efficient retrieval and semantic search.
-
-## Features
-
--   **CSV Data Processing**: Parses complex investor data from CSV files with nested JSON fields
--   **Dual Database Storage**: Saves structured data to SQL database and text data to vector database
--   **LLM Enhancement**: Optional OpenAI GPT integration for data cleaning and enhancement
--   **Semantic Search**: Vector similarity search for finding relevant investors
--   **Robust Error Handling**: Graceful handling of malformed JSON and missing data
--   **Command-Line Interface**: Easy-to-use CLI for batch processing and search
-
-## Architecture
-
-### Components
-
-1. **Schema (`schema.py`)**: SQLAlchemy models and Pydantic validators
-2. **Database (`db.py`)**: SQL database connection and session management
-3. **Parser (`investor_parser.py`)**: Main parsing logic with LLM integration
-4. **Test Parser (`test_parser.py`)**: Simplified parser without LLM dependencies
-
-### Data Flow
-
-```
-CSV File → JSON Parsing → Data Extraction → LLM Enhancement → SQL Storage → Vector Storage
-```
-
-## Installation
-
-### Prerequisites
-
--   Python 3.12+
--   UV package manager (or pip)
-
-### Setup
-
-1. Clone the repository and navigate to the project directory:
-
-```bash
-cd /path/to/anton_wireframe
-```
-
-2. Create and activate virtual environment using UV:
-
-```bash
-uv venv
-source .venv/bin/activate  # On Linux/Mac
-```
-
-3. Install dependencies:
-
-```bash
-uv pip install pandas sqlalchemy chromadb openai python-dotenv pydantic
-```
-
-4. Configure environment variables (optional for LLM features):
-
-```bash
-cp .env.example .env
-# Edit .env and add your OpenAI API key
-```
-
-## Database Schema
-
-### SQL Database (SQLite)
-
-The `investors` table contains:
-
--   **Basic Info**: name, website, headquarters
--   **Investment Focus**: investor_description, investment_thesis_focus
--   **Financial Data**: AUM amount, date, source URL
--   **Fund Information**: JSON array of fund details
--   **Raw Data**: Original CSV fields for reference
--   **Metadata**: created_at, updated_at timestamps
-
-### Vector Database (ChromaDB)
-
-Stores embeddings of:
-
--   Investor descriptions
--   Investment thesis focus areas
--   Combined text for semantic search
-
-## Usage
-
-### Command Line Interface
-
-#### Process CSV File (Simple Mode)
-
-```bash
-python investor_parser.py --file "path/to/investors.csv" --limit 50
-```
-
-#### Process CSV File (LLM-Enhanced Mode)
-
-```bash
-python investor_parser.py --file "path/to/investors.csv" --limit 50 --use-llm
-```
-
-#### Search Investors
-
-```bash
-python investor_parser.py --search "bioeconomy sustainable agriculture" --search-limit 10
-```
-
-#### View Help
-
-```bash
-python investor_parser.py --help
-```
-
-### Python API
-
-#### Basic Usage
-
-```python
-from investor_parser import InvestorParser
-
-# Initialize parser (with or without LLM)
-parser = InvestorParser(use_llm=True)
-
-# Process CSV file
-processed, errors = parser.process_csv_file("investors.csv", limit=100)
-
-# Search investors
-results = parser.search_investors("venture capital fintech", limit=5)
-```
-
-#### Direct Database Access
-
-```python
-from db import get_session
-from schema import Investor
-from sqlalchemy import select
-
-# Query database
-with get_session() as session:
-    investors = session.execute(select(Investor)).scalars().all()
-    for investor in investors:
-        print(f"{investor.name}: {investor.website}")
-```
-
-## Data Processing Pipeline
-
-### 1. CSV Parsing
-
--   Reads CSV with pandas
--   Handles nested JSON fields in columns
--   Validates data with Pydantic models
-
-### 2. JSON Field Processing
-
--   Direct parsing for well-formed JSON
--   LLM-assisted cleaning for malformed JSON (when enabled)
--   Graceful fallback to empty objects
-
-### 3. Data Extraction
-
-Extracts key fields:
-
--   Company name and website
--   Investor description
--   Investment thesis/focus areas
--   Headquarters location
--   Assets Under Management (AUM)
--   Fund information
-
-### 4. LLM Enhancement (Optional)
-
-When `--use-llm` is enabled:
-
--   Standardizes investor descriptions
--   Normalizes investment focus areas
--   Cleans headquarters location format
--   Repairs malformed JSON data
-
-### 5. Dual Storage
-
--   **SQL Database**: Structured, queryable data
--   **Vector Database**: Semantic search capabilities
-
-## Configuration
-
-### Environment Variables (.env)
-
-```bash
-# OpenAI API Configuration (required for LLM features)
-OPENAI_API_KEY=your_openai_api_key_here
-
-# Database Configuration
-DATABASE_URL=sqlite:///investors.db
-```
-
-### LLM Configuration
-
--   Model: GPT-3.5-turbo (configurable)
--   Temperature: 0.3 for enhancement, 0 for JSON cleaning
--   Max tokens: Automatically managed
--   Fallback: Graceful degradation when API unavailable
-
-## Search Capabilities
-
-### Vector Search Examples
-
-```bash
-# Find sustainable/ESG investors
-python investor_parser.py --search "sustainability ESG impact investing"
-
-# Find fintech investors
-python investor_parser.py --search "financial technology digital payments"
-
-# Find biotech/healthcare investors
-python investor_parser.py --search "biotechnology healthcare pharmaceuticals"
-
-# Find early-stage investors
-python investor_parser.py --search "seed series A early stage venture"
-```
-
-### Search Results Include
-
--   Investor name and website
--   Headquarters location
--   Number of focus areas
--   Similarity score (lower = more similar)
-
-## Error Handling
-
-### Robust Processing
-
--   Malformed JSON handling with LLM backup
--   Missing data graceful degradation
--   Individual row error isolation
--   Comprehensive logging
-
-### Common Issues and Solutions
-
-1. **Invalid JSON in CSV**
-
-    - Solution: Enable LLM mode for automatic cleaning
-    - Fallback: Empty object insertion
-
-2. **Missing OpenAI API Key**
-
-    - Solution: System automatically disables LLM features
-    - Falls back to basic parsing mode
-
-3. **Database Connection Issues**
-    - Solution: Uses SQLite by default (no external dependencies)
-    - Configurable via DATABASE_URL
-
-## Performance
-
-### Benchmarks (Approximate)
-
--   **Simple Mode**: ~2-5 seconds per row
--   **LLM Mode**: ~5-15 seconds per row (depends on API latency)
--   **Search**: <100ms for vector similarity queries
-
-### Optimization Tips
-
-1. Use `--limit` for testing and development
-2. Process in batches for large datasets
-3. Enable LLM mode only when data quality is crucial
-4. Use local vector database for faster searches
-
-## File Structure
-
-```
-anton_wireframe/
-├── schema.py              # Database models and validators
-├── db.py                  # Database connection management
-├── investor_parser.py     # Main parser with CLI
-├── test_parser.py         # Simplified parser for testing
-├── .env                   # Environment configuration
-├── investors.db          # SQLite database (created automatically)
-├── chroma_db/            # Vector database directory
-└── README.md             # This documentation
-```
-
-## Example Output
-
-### Processing Log
-
-```
-2025-08-27 19:45:46,614 - INFO - Database initialized successfully!
-2025-08-27 19:45:46,690 - INFO - Starting to process CSV file: investors.csv
-2025-08-27 19:45:46,690 - INFO - Loaded 82 rows from CSV
-2025-08-27 19:45:46,690 - INFO - Processing limited to 20 rows
-2025-08-27 19:45:46,691 - INFO - Processing row 1/20: European Circular Bioeconomy Fund
-2025-08-27 19:45:46,692 - INFO - Creating new investor: European Circular Bioeconomy Fund
-2025-08-27 19:45:46,693 - INFO - Added investor European Circular Bioeconomy Fund to vector database
-...
-2025-08-27 19:45:50,828 - INFO - Processing complete! Processed: 20, Errors: 0
-```
-
-### Search Results
-
-```bash
-$ python investor_parser.py --search "circular bioeconomy"
-
-Found 4 similar investors:
-1. European Circular Bioeconomy Fund
-   Website: https://www.ecbf.vc
-   HQ: ECBF Management GmbH, Poppelsdorfer Allee 175, 53115 Bonn, Germany
-   Focus areas: 6
-   Similarity score: 0.979
-
-2. Astanor
-   Website: https://www.astanor.com/
-   HQ:
-   Focus areas: 5
-   Similarity score: 1.080
-```
-
-## Contributing
-
-### Development Setup
-
-1. Install development dependencies
-2. Run tests: `python test_parser.py`
-3. Lint code: Follow PEP 8 standards
-4. Test with sample data before processing full datasets
-
-### Adding Features
-
--   New data extractors: Extend `extract_structured_data()`
--   New LLM prompts: Modify `enhance_with_llm()`
--   New search capabilities: Extend ChromaDB integration
-
-## License
-
-This project is part of the MKD Anton Wireframe system.
-
-## Support
-
-For issues and questions:
-
-1. Check logs for detailed error messages
-2. Verify environment configuration
-3. Test with limited datasets first
-4. Review CSV data format requirements

app/api/companies.py

@@ -1,8 +0,0 @@
-from fastapi.routing import apirouter
-
-router = apirouter()
-
-@router.get("/companies")
-def read_companies():
-    return {"message": "list of companies"}
-

app/api/investors.py

@@ -1,8 +0,0 @@
-from fastapi import APIRouter
-
-router = APIRouter()
-
-@router.get("/investors")
-def read_investors():
-    return {"message": "list of investors"}
-

app/db/db.py

@@ -9,7 +9,7 @@ from sqlalchemy.orm import Session, sessionmaker
 Base = declarative_base()
 
 # Database configuration
-DATABASE_URL = os.getenv("DATABASE_URL", "sqlite:///investors_2.db")
+DATABASE_URL = os.getenv("DATABASE_URL", "sqlite:///./investors.db")
 
 # Create engine
 engine = create_engine(DATABASE_URL, echo=False)
@@ -32,9 +32,12 @@ db_dependency = Annotated[Session, Depends(get_db)]
 def init_database():
     """Initialize the database by creating all tables"""
     Base.metadata.create_all(bind=engine)
-    print("Database initialized successfully!")
 
 
 def get_session_sync() -> Session:
     """Get a database session for synchronous operations"""
     return SessionLocal()
+
+def get_db_session():
+    """Get a database session for direct use."""
+    return SessionLocal()

app/db/models.py

@@ -1,20 +1,27 @@
-import datetime
 import enum
 
-from sqlalchemy import Column, DateTime, ForeignKey, Integer, String, Table, Text
-from sqlalchemy.orm import relationship
+from sqlalchemy import Column, DateTime, ForeignKey, Integer, String, Table, Text, func
+from sqlalchemy.orm import declarative_mixin, relationship
 from sqlalchemy.types import Enum
 
 from db.db import Base
 
 
+@declarative_mixin
+class TimestampMixin:
+    created_at = Column(
+        DateTime(timezone=True), server_default=func.now(), nullable=False
+    )
+    updated_at = Column(DateTime(timezone=True), onupdate=func.now())
+
+
 class InvestmentStage(enum.Enum):
-    SEED = "seed"
-    SERIES_A = "series_a"
-    SERIES_B = "series_b"
-    SERIES_C = "series_c"
-    GROWTH = "growth"
-    LATE_STAGE = "late_stage"
+    SEED = "SEED"
+    SERIES_A = "SERIES_A"
+    SERIES_B = "SERIES_B"
+    SERIES_C = "SERIES_C"
+    GROWTH = "GROWTH"
+    LATE_STAGE = "LATE_STAGE"
 
 
 # Association table for many-to-many relationship between investors and companies
@@ -35,24 +42,49 @@ investor_sector_association = Table(
 )
 
 
-class InvestorTable(Base):
+company_sector_association = Table(
+    "company_sector",
+    Base.metadata,
+    Column("company_id", Integer, ForeignKey("companies.id")),
+    Column("sector_id", Integer, ForeignKey("sectors.id")),
+)
+
+project_sector_association = Table(
+    "project_sector",
+    Base.metadata,
+    Column("project_id", Integer, ForeignKey("projects.id")),
+    Column("sector_id", Integer, ForeignKey("sectors.id")),
+)
+
+project_investor_association = Table(
+    "project_investors",
+    Base.metadata,
+    Column("project_id", Integer, ForeignKey("projects.id")),
+    Column("investor_id", Integer, ForeignKey("investors.id")),
+)
+
+project_company_association = Table(
+    "project_companies",
+    Base.metadata,
+    Column("project_id", Integer, ForeignKey("projects.id")),
+    Column("company_id", Integer, ForeignKey("companies.id")),
+)
+
+
+class InvestorTable(Base, TimestampMixin):
     __tablename__ = "investors"
 
     id = Column(Integer, primary_key=True, index=True)
     name = Column(String, nullable=False)
     description = Column(Text, nullable=True)
-    aum = Column(Integer, nullable=False)  # Assets Under Management
-    check_size_lower = Column(Integer, nullable=False)  # Lower bound
-    check_size_upper = Column(Integer, nullable=False)  # Upper bound
-    geographic_focus = Column(String, nullable=False)
-    stage_focus = Column(Enum(InvestmentStage), nullable=False)
-    number_of_investments = Column(Integer, default=0)
-    created_at = Column(DateTime, default=datetime.datetime.now(datetime.UTC))
-    updated_at = Column(
-        DateTime,
-        default=datetime.datetime.now(datetime.UTC),
-        onupdate=datetime.datetime.now(datetime.UTC),
-    )
+    aum = Column(Integer, nullable=True)  # Assets Under Management
+    check_size_lower = Column(Integer, nullable=True)  # Lower bound
+    check_size_upper = Column(Integer, nullable=True)  # Upper bound
+    geographic_focus = Column(String, nullable=True)
+    stage_focus = Column(Enum(InvestmentStage), nullable=True)
+    number_of_investments = Column(Integer, default=0, nullable=True)
+
+    team_members = relationship("InvestorMember", back_populates="investor")
 
     # Relationship to portfolio companies
     portfolio_companies = relationship(
@@ -60,30 +92,43 @@ class InvestorTable(Base):
         secondary=investor_company_association,
         back_populates="investors",
     )
-    team_members = relationship("InvestorTeamMember", back_populates="investor")
+
     sectors = relationship(
         "SectorTable",
         secondary=investor_sector_association,
         back_populates="investors",
     )
 
+    projects = relationship(
+        "ProjectTable",
+        secondary=project_investor_association,
+        back_populates="investors",
+    )
 
-class CompanyTable(Base):
+
+class InvestorMember(Base, TimestampMixin):
+    __tablename__ = "investor_members"
+    id = Column(Integer, primary_key=True, index=True)
+    name = Column(String, nullable=False)
+    role = Column(String, nullable=True)
+    email = Column(String, nullable=True)
+
+    investor_id = Column(Integer, ForeignKey("investors.id"))
+    investor = relationship("InvestorTable", back_populates="team_members")
+
+
+class CompanyTable(Base, TimestampMixin):
     __tablename__ = "companies"
 
     id = Column(Integer, primary_key=True, index=True)
     name = Column(String, nullable=False)
-    industry = Column(String, nullable=False)
-    location = Column(String, nullable=False)
+    industry = Column(String, nullable=True)
+    location = Column(String, nullable=True)
+    description = Column(String, nullable=True)
     founded_year = Column(Integer, nullable=True)
     website = Column(String, nullable=True)
-    created_at = Column(DateTime, default=datetime.datetime.now(datetime.UTC))
-    updated_at = Column(
-        DateTime,
-        default=datetime.datetime.now(datetime.UTC),
-        onupdate=datetime.datetime.now(datetime.UTC),
-    )
 
+    members = relationship("CompanyMember", back_populates="company")
     # Relationship back to investors
     investors = relationship(
         "InvestorTable",
@@ -91,8 +136,29 @@ class CompanyTable(Base):
         back_populates="portfolio_companies",
     )
 
+    sectors = relationship(
+        "SectorTable", secondary=company_sector_association, back_populates="companies"
+    )
 
-class SectorTable(Base):
+    projects = relationship(
+        "ProjectTable",
+        secondary=project_company_association,
+        back_populates="companies",
+    )
+
+
+class CompanyMember(Base, TimestampMixin):
+    __tablename__ = "company_members"
+    id = Column(Integer, primary_key=True)
+    name = Column(String)
+    linkedin = Column(String, nullable=True)
+    role = Column(String, nullable=True)
+    company_id = Column(Integer, ForeignKey("companies.id"), nullable=False)
+
+    company = relationship("CompanyTable", back_populates="members")
+
+
+class SectorTable(Base, TimestampMixin):
     __tablename__ = "sectors"
 
     id = Column(Integer, primary_key=True, index=True)
@@ -105,13 +171,36 @@ class SectorTable(Base):
         back_populates="sectors",
     )
 
+    companies = relationship(
+        "CompanyTable", secondary=company_sector_association, back_populates="sectors"
+    )
+
+    projects = relationship(
+        "ProjectTable", secondary=project_sector_association, back_populates="sector"
+    )
+
+
+class ProjectTable(Base, TimestampMixin):
+    __tablename__ = "projects"
 
-class InvestorTeamMember(Base):
-    __tablename__ = "investor_team"
     id = Column(Integer, primary_key=True, index=True)
     name = Column(String, nullable=False)
-    role = Column(String, nullable=False)
-    email = Column(String, nullable=False)
+    valuation = Column(Integer, nullable=True)
 
-    investor_id = Column(Integer, ForeignKey("investors.id"))
-    investor = relationship("InvestorTable", back_populates="team_members")
+    stage = Column(Enum(InvestmentStage), nullable=True)
+    location = Column(String, nullable=True)
+    description = Column(Text, nullable=True)
+    start_date = Column(DateTime, nullable=True)
+    end_date = Column(DateTime, nullable=True)
+
+    sector = relationship(
+        "SectorTable", secondary=project_sector_association, back_populates="projects"
+    )
+    investors = relationship(
+        "InvestorTable",
+        secondary=project_investor_association,
+        back_populates="projects",
+    )
+    companies = relationship(
+        "CompanyTable", secondary=project_company_association, back_populates="projects"
+    )

app/db/new_schema.py

@@ -1,115 +0,0 @@
-import json
-from typing import List, Optional
-
-from pydantic import BaseModel
-from sqlalchemy import JSON, Column, DateTime, Integer, String, Text
-from sqlalchemy.ext.declarative import declarative_base
-from sqlalchemy.sql import func
-
-Base = declarative_base()
-
-
-class Investor(Base):
-    __tablename__ = "investors"
-
-    id = Column(Integer, primary_key=True, autoincrement=True)
-    name = Column(String(500), nullable=False)
-    website = Column(String(1000))
-
-    # Core investment information
-    investor_description = Column(Text)
-    investment_thesis_focus = Column(JSON)  # List of focus areas
-    headquarters = Column(String(1000))
-
-    # AUM information
-    aum_amount = Column(String(200))
-    aum_as_of_date = Column(String(100))
-    aum_source_url = Column(String(1000))
-
-    # Fund information
-    funds_info = Column(JSON)  # Complex fund data
-
-    # Raw data columns for reference
-    crunchbase_urls = Column(Text)
-    crunchbase_extract = Column(Text)
-    linkedin_profile = Column(Text)
-    source_truth_profile = Column(Text)
-
-    # Metadata
-    created_at = Column(DateTime(timezone=True), server_default=func.now())
-    updated_at = Column(DateTime(timezone=True), onupdate=func.now())
-
-    def __repr__(self):
-        return f"<Investor(name='{self.name}', website='{self.website}')>"
-
-
-# Pydantic models for data validation and parsing
-class AUMInfo(BaseModel):
-    aumAmount: Optional[str] = None
-    asOfDate: Optional[str] = None
-    sourceUrl: Optional[str] = None
-
-
-class FundInfo(BaseModel):
-    fundName: Optional[str] = None
-    fundSize: Optional[str] = None
-    vintage: Optional[str] = None
-    status: Optional[str] = None
-    description: Optional[str] = None
-
-
-class InvestorProfile(BaseModel):
-    websiteURL: Optional[str] = None
-    investorDescription: Optional[str] = None
-    investmentThesisFocus: Optional[List[str]] = None
-    headquarters: Optional[str] = None
-    overallAssetsUnderManagement: Optional[AUMInfo] = None
-    funds: Optional[List[FundInfo]] = None
-
-
-class CSVRow(BaseModel):
-    name: str
-    website: Optional[str] = None
-    investment_firm_profile: Optional[str] = None
-    crunchbase_linkedin_urls: Optional[str] = None
-    crunchbase_firm_extract: Optional[str] = None
-    linkedin_investment_profile: Optional[str] = None
-    source_of_truth_profile: Optional[str] = None
-
-    def get_combined_description(self) -> str:
-        """Combine all description fields for vector embedding"""
-        descriptions = []
-
-        if self.investment_firm_profile:
-            try:
-                profile_data = json.loads(self.investment_firm_profile)
-                if isinstance(profile_data, dict):
-                    desc = profile_data.get("investorDescription", "")
-                    if desc:
-                        descriptions.append(desc)
-            except (json.JSONDecodeError, TypeError):
-                pass
-
-        if self.crunchbase_firm_extract:
-            descriptions.append(self.crunchbase_firm_extract)
-
-        if self.linkedin_investment_profile:
-            descriptions.append(self.linkedin_investment_profile)
-
-        if self.source_of_truth_profile:
-            descriptions.append(self.source_of_truth_profile)
-
-        return " ".join(descriptions)
-
-    def get_investment_focus(self) -> List[str]:
-        """Extract investment thesis focus"""
-        if self.investment_firm_profile:
-            try:
-                profile_data = json.loads(self.investment_firm_profile)
-                if isinstance(profile_data, dict):
-                    focus = profile_data.get("investmentThesisFocus", [])
-                    if isinstance(focus, list):
-                        return focus
-            except (json.JSONDecodeError, TypeError):
-                pass
-        return []

app/main.py

@@ -1,44 +1,86 @@
 import io
 
 import pandas as pd
-from api import investors
-from db.db import db_dependency, init_database
-from fastapi import FastAPI, File, UploadFile
-from services.openrouter import InvestorProcessor
+from db.db import Base, db_dependency, engine
+from dotenv import load_dotenv
+from fastapi import FastAPI, File, Form, UploadFile
+from pydantic import BaseModel
+from routers import companies, investors, projects
+from schemas.router_schemas import InvestorList
+from services.llm_parser import InvestorProcessor
 from services.querying import QueryProcessor
 
-app = FastAPI()
-app.include_router(investors.router)
+load_dotenv()
+
+
+def init_database():
+    """Initialize the database by creating all tables"""
+    Base.metadata.create_all(bind=engine)
+
+
 init_database()
 
+app = FastAPI()
+
+
+# Request models
+class QueryRequest(BaseModel):
+    question: str
+
+    class Config:
+        json_schema_extra = {
+            "example": {
+                "question": "Find me deep tech investors that do deals in Europe under 5 million."
+            }
+        }
+
 
 @app.get("/")
-def read_root():
+def health():
     return {"Hello": "World"}
 
 
-@app.post("/parse-csv")
-async def parse_csv(db: db_dependency, file: UploadFile = File(...)):
+@app.post("/parse-csv", tags=["CSV Upload"], response_model=list[dict])
+async def parse_csv(
+    db: db_dependency, file: UploadFile = File(...), is_investor: int = Form(...)
+):
     # Read uploaded CSV with pandas
     content = await file.read()
     df = pd.read_csv(io.StringIO(content.decode("utf-8")))
 
     # Process the dataframe
-    processor = InvestorProcessor(sql_session=db)
-    results = await processor.process_csv(df)
+    processor = InvestorProcessor()
+
+    if is_investor == 1:
+        results = await processor.parse_investors(df)
+    else:
+        results = await processor.parse_companies(df)
 
     # Convert Pydantic objects to dictionaries
-    return {"results": [r.dict() for r in results]}
+    return [r.model_dump() for r in results]
 
 
-@app.post("/query")
-async def query_investors(db: db_dependency, question: str):
-    processor = QueryProcessor(sql_session=db)
-    results = processor.process_query(question)
-    return {"results": results}
+@app.post("/query", response_model=InvestorList, tags=["Querying"])
+async def query_investors(request: QueryRequest):
+    """
+    Query investors using natural language.
 
+    Supports queries like:
+    - "Show me seed stage investors"
+    - "Find fintech investors in Silicon Valley"
+    - "Growth stage investors with $5M+ check sizes"
+    - "Healthcare investors in Europe"
+    """
+    processor = QueryProcessor()
+    results = processor.process_query(request.question)
+    return results
+
+
+app.include_router(investors.router)
+app.include_router(companies.router)
+app.include_router(projects.router)
 
 if __name__ == "__main__":
     import uvicorn
 
-    uvicorn.run(app="main:app", host="localhost", port=8000, reload=True)
+    uvicorn.run(app="main:app", host="0.0.0.0", port=8585, reload=True)

app/py_schemas.py

@@ -1,77 +0,0 @@
-from pydantic import BaseModel
-from datetime import datetime
-from typing import List, Optional
-from enum import Enum
-
-
-class InvestmentStage(str, Enum):
-    SEED = "seed"
-    SERIES_A = "series_a"
-    SERIES_B = "series_b"
-    SERIES_C = "series_c"
-    GROWTH = "growth"
-    LATE_STAGE = "late_stage"
-
-
-class SectorSchema(BaseModel):
-    id: int
-    name: str
-
-    class Config:
-        from_attributes = True
-
-
-class CompanySchema(BaseModel):
-    id: int
-    name: str
-    industry: str
-    location: str
-    founded_year: Optional[int]
-    website: Optional[str]
-    created_at: Optional[datetime]
-    updated_at: Optional[datetime]
-
-    class Config:
-        from_attributes = True
-
-
-class InvestorTeamMemberSchema(BaseModel):
-    id: int
-    name: str
-    role: str
-    email: str
-
-    class Config:
-        from_attributes = True
-
-
-class InvestorSchema(BaseModel):
-    id: int
-    name: str
-    description: Optional[str]
-    aum: int
-    check_size_lower: int
-    check_size_upper: int
-    geographic_focus: str
-    stage_focus: InvestmentStage
-    number_of_investments: int
-    created_at: Optional[datetime]
-    updated_at: Optional[datetime]
-
-    class Config:
-        from_attributes = True
-
-
-class InvestorData(BaseModel):
-    """Comprehensive investor data schema for LLM processing"""
-    investor: InvestorSchema
-    portfolio_companies: List[CompanySchema] = []
-    team_members: List[InvestorTeamMemberSchema] = []
-    sectors: List[SectorSchema] = []
-
-    class Config:
-        from_attributes = True
-        
-
-class InvestorList(BaseModel):
-    investors: List[InvestorData]

app/pydantic_schemas.py

@@ -1,38 +0,0 @@
-from typing import List
-
-from pydantic import BaseModel
-
-
-class Investor(BaseModel):
-    name: str
-    aum: int
-    check_size: str
-    sector_focus: str
-    stage_focus: str
-    region: str
-    investment_thesis: str
-    investor_description: str
-
-
-class InvestorList(BaseModel):
-    investor_list: List[Investor]
-
-
-class QueryResponse(BaseModel):
-    name: str
-    aum: int
-    check_size: str
-    sector_focus: str
-    stage_focus: str
-    region: str
-    investment_thesis: str
-    investor_description: str
-    reason: str
-
-
-class QueryRequest(BaseModel):
-    question: str
-
-
-class QueryResponseList(BaseModel):
-    responses: List[QueryResponse]

app/routers/companies.py

@@ -0,0 +1,232 @@
+from typing import List, Optional
+
+from db.db import get_db
+from db.models import CompanyTable, InvestorTable
+from fastapi import APIRouter, Depends, HTTPException, Query
+from pydantic import BaseModel
+from schemas.router_schemas import CompanyData
+from sqlalchemy.orm import Session, selectinload
+
+router = APIRouter(tags=["Company Routes"])
+
+
+# Request schemas for creating/updating
+class CompanyCreate(BaseModel):
+    name: str
+    industry: str
+    location: str
+    description: Optional[str] = None
+    founded_year: Optional[int] = None
+    website: Optional[str] = None
+
+
+class CompanyUpdate(BaseModel):
+    name: Optional[str] = None
+    industry: Optional[str] = None
+    location: Optional[str] = None
+    description: Optional[str] = None
+    founded_year: Optional[int] = None
+    website: Optional[str] = None
+
+
+@router.get("/companies", response_model=List[CompanyData])
+def read_companies(db: Session = Depends(get_db)):
+    """Get all companies with their investor relationships"""
+    companies = (
+        db.query(CompanyTable)
+        .filter(
+            CompanyTable.name.isnot(None),
+            CompanyTable.description.isnot(None)
+        )
+        .options(
+            selectinload(CompanyTable.investors),
+            selectinload(CompanyTable.members),
+            selectinload(CompanyTable.sectors),
+        )
+        .all()
+    )
+
+    # Transform CompanyTable objects to CompanyData format
+    company_data_list = []
+    for company in companies:
+        company_data = CompanyData(
+            company=company,
+            investors=company.investors,
+            members=company.members,
+            sectors=company.sectors,
+        )
+        company_data_list.append(company_data)
+
+    return company_data_list
+
+
+@router.get("/companies/filter", response_model=List[CompanyData])
+def filter_companies(
+    industry: Optional[str] = Query(
+        None, description="Filter by industry (partial match)"
+    ),
+    location: Optional[str] = Query(
+        None, description="Filter by location (partial match)"
+    ),
+    founded_after: Optional[int] = Query(None, description="Founded after year"),
+    founded_before: Optional[int] = Query(None, description="Founded before year"),
+    has_website: Optional[bool] = Query(
+        None, description="Filter companies with/without website"
+    ),
+    investor_name: Optional[str] = Query(
+        None, description="Filter by investor name (partial match)"
+    ),
+    db: Session = Depends(get_db),
+):
+    """Filter companies based on various criteria"""
+
+    # Start with base query
+    query = db.query(CompanyTable).options(
+        selectinload(CompanyTable.investors),
+        selectinload(CompanyTable.members),
+        selectinload(CompanyTable.sectors),
+    )
+
+    # Apply filters
+    if industry:
+        query = query.filter(CompanyTable.industry.ilike(f"%{industry}%"))
+
+    if location:
+        query = query.filter(CompanyTable.location.ilike(f"%{location}%"))
+
+    if founded_after is not None:
+        query = query.filter(CompanyTable.founded_year >= founded_after)
+
+    if founded_before is not None:
+        query = query.filter(CompanyTable.founded_year <= founded_before)
+
+    if has_website is not None:
+        if has_website:
+            query = query.filter(CompanyTable.website.isnot(None))
+        else:
+            query = query.filter(CompanyTable.website.is_(None))
+
+    # Filter by investor if provided
+    if investor_name:
+        query = query.join(CompanyTable.investors).filter(
+            InvestorTable.name.ilike(f"%{investor_name}%")
+        )
+
+    companies = query.all()
+
+    # Transform to CompanyData format
+    company_data_list = []
+    for company in companies:
+        company_data = CompanyData(
+            company=company,
+            investors=company.investors,
+            members=company.members,
+            sectors=company.sectors,
+        )
+        company_data_list.append(company_data)
+
+    return company_data_list
+
+
+@router.get("/companies/{company_id}", response_model=CompanyData)
+def read_company(company_id: int, db: Session = Depends(get_db)):
+    """Get a specific company by ID with its investors"""
+    company = (
+        db.query(CompanyTable)
+        .options(
+            selectinload(CompanyTable.investors),
+            selectinload(CompanyTable.members),
+            selectinload(CompanyTable.sectors),
+        )
+        .filter(CompanyTable.id == company_id)
+        .first()
+    )
+
+    if not company:
+        raise HTTPException(status_code=404, detail="Company not found")
+
+    # Transform to CompanyData format
+    return CompanyData(
+        company=company,
+        investors=company.investors,
+        members=company.members,
+        sectors=company.sectors,
+    )
+
+
+@router.post("/companies", response_model=CompanyData)
+def create_company(company: CompanyCreate, db: Session = Depends(get_db)):
+    """Create a new company"""
+    db_company = CompanyTable(**company.dict())
+    db.add(db_company)
+    db.commit()
+    db.refresh(db_company)
+
+    # Reload with relationships
+    company_with_relations = (
+        db.query(CompanyTable)
+        .options(
+            selectinload(CompanyTable.investors),
+            selectinload(CompanyTable.members),
+            selectinload(CompanyTable.sectors),
+        )
+        .filter(CompanyTable.id == db_company.id)
+        .first()
+    )
+
+    # Transform to CompanyData format
+    return CompanyData(
+        company=company_with_relations,
+        investors=company_with_relations.investors,
+        members=company_with_relations.members,
+        sectors=company_with_relations.sectors,
+    )
+
+
+@router.put("/companies/{company_id}", response_model=CompanyData)
+def update_company(
+    company_id: int, company: CompanyUpdate, db: Session = Depends(get_db)
+):
+    """Update an existing company"""
+    db_company = db.query(CompanyTable).filter(CompanyTable.id == company_id).first()
+    if not db_company:
+        raise HTTPException(status_code=404, detail="Company not found")
+
+    update_data = company.dict(exclude_unset=True)
+    for field, value in update_data.items():
+        setattr(db_company, field, value)
+
+    db.commit()
+    db.refresh(db_company)
+
+    # Reload with relationships
+    company_with_relations = (
+        db.query(CompanyTable)
+        .options(
+            selectinload(CompanyTable.investors),
+            selectinload(CompanyTable.members),
+            selectinload(CompanyTable.sectors),
+        )
+        .filter(CompanyTable.id == company_id)
+        .first()
+    )
+
+    # Transform to CompanyData format
+    return CompanyData(
+        company=company_with_relations,
+        investors=company_with_relations.investors,
+        members=company_with_relations.members,
+        sectors=company_with_relations.sectors,
+    )
+
+
+@router.delete("/companies/{company_id}")
+def delete_company(company_id: int, db: Session = Depends(get_db)):
+    """Delete a company"""
+    db_company = db.query(CompanyTable).filter(CompanyTable.id == company_id).first()
+    if not db_company:
+        raise HTTPException(status_code=404, detail="Company not found")
+
+    db.delete(db_company)
+    db.commit()
+    return {"message": "Company deleted successfully"}

app/routers/investors.py

@@ -0,0 +1,281 @@
+from typing import List, Optional
+
+from db.db import get_db
+from db.models import InvestorTable, SectorTable
+from fastapi import APIRouter, Depends, HTTPException, Query
+from pydantic import BaseModel
+from schemas.router_schemas import InvestmentStage, InvestorData
+from services.querying import QueryProcessor
+from sqlalchemy.orm import Session, selectinload
+
+router = APIRouter(tags=["Investor Routes"])
+
+
+# Request schemas for creating/updating
+class InvestorCreate(BaseModel):
+    name: str
+    description: Optional[str] = None
+    aum: int
+    check_size_lower: int
+    check_size_upper: int
+    geographic_focus: str
+    stage_focus: InvestmentStage
+    number_of_investments: int = 0
+
+
+class InvestorUpdate(BaseModel):
+    name: Optional[str] = None
+    description: Optional[str] = None
+    aum: Optional[int] = None
+    check_size_lower: Optional[int] = None
+    check_size_upper: Optional[int] = None
+    geographic_focus: Optional[str] = None
+    stage_focus: Optional[InvestmentStage] = None
+    number_of_investments: Optional[int] = None
+
+
+@router.get("/investors", response_model=List[InvestorData])
+def read_investors(db: Session = Depends(get_db)):
+    """Get all investors with their related data"""
+    investors = (
+        db.query(InvestorTable)
+        .options(
+            selectinload(InvestorTable.portfolio_companies),
+            selectinload(InvestorTable.team_members),
+            selectinload(InvestorTable.sectors),
+        )
+        .all()
+    )
+
+    # Transform InvestorTable objects to InvestorData format
+    investor_data_list = []
+    for investor in investors:
+        investor_data = InvestorData(
+            investor=investor,  # This maps to InvestorSchema
+            portfolio_companies=investor.portfolio_companies,
+            team_members=investor.team_members,
+            sectors=investor.sectors,
+        )
+        investor_data_list.append(investor_data)
+
+    return investor_data_list
+
+
+@router.get("/investors/filter", response_model=List[InvestorData])
+def filter_investors(
+    stage: Optional[InvestmentStage] = Query(
+        None, description="Filter by investment stage"
+    ),
+    min_check_size: Optional[int] = Query(None, description="Minimum check size"),
+    max_check_size: Optional[int] = Query(None, description="Maximum check size"),
+    geography: Optional[str] = Query(
+        None, description="Geographic focus (partial match)"
+    ),
+    sector: Optional[str] = Query(None, description="Sector name (partial match)"),
+    min_aum: Optional[int] = Query(None, description="Minimum AUM"),
+    max_aum: Optional[int] = Query(None, description="Maximum AUM"),
+    db: Session = Depends(get_db),
+):
+    """Filter investors based on various criteria"""
+
+    # Start with base query
+    query = db.query(InvestorTable).options(
+        selectinload(InvestorTable.portfolio_companies),
+        selectinload(InvestorTable.team_members),
+        selectinload(InvestorTable.sectors),
+    )
+
+    # Apply filters
+    if stage:
+        query = query.filter(InvestorTable.stage_focus == stage)
+
+    if min_check_size is not None:
+        query = query.filter(InvestorTable.check_size_lower >= min_check_size)
+
+    if max_check_size is not None:
+        query = query.filter(InvestorTable.check_size_upper <= max_check_size)
+
+    if geography:
+        query = query.filter(InvestorTable.geographic_focus.ilike(f"%{geography}%"))
+
+    if min_aum is not None:
+        query = query.filter(InvestorTable.aum >= min_aum)
+
+    if max_aum is not None:
+        query = query.filter(InvestorTable.aum <= max_aum)
+
+    # Filter by sector if provided
+    if sector:
+        query = query.join(InvestorTable.sectors).filter(
+            SectorTable.name.ilike(f"%{sector}%")
+        )
+
+    investors = query.all()
+
+    # Transform to InvestorData format
+    investor_data_list = []
+    for investor in investors:
+        investor_data = InvestorData(
+            investor=investor,
+            portfolio_companies=investor.portfolio_companies,
+            team_members=investor.team_members,
+            sectors=investor.sectors,
+        )
+        investor_data_list.append(investor_data)
+
+    return investor_data_list
+
+
+@router.get("/investors/{investor_id}", response_model=InvestorData)
+def read_investor(investor_id: int, db: Session = Depends(get_db)):
+    """Get a specific investor by ID"""
+    investor = (
+        db.query(InvestorTable)
+        .options(
+            selectinload(InvestorTable.portfolio_companies),
+            selectinload(InvestorTable.team_members),
+            selectinload(InvestorTable.sectors),
+        )
+        .filter(InvestorTable.id == investor_id)
+        .first()
+    )
+
+    if not investor:
+        raise HTTPException(status_code=404, detail="Investor not found")
+
+    # Transform to InvestorData format
+    return InvestorData(
+        investor=investor,
+        portfolio_companies=investor.portfolio_companies,
+        team_members=investor.team_members,
+        sectors=investor.sectors,
+    )
+
+
+@router.post("/investors", response_model=InvestorData)
+def create_investor(investor: InvestorCreate, db: Session = Depends(get_db)):
+    """Create a new investor"""
+    db_investor = InvestorTable(**investor.dict())
+    db.add(db_investor)
+    db.commit()
+    db.refresh(db_investor)
+
+    # Reload with relationships
+    investor_with_relations = (
+        db.query(InvestorTable)
+        .options(
+            selectinload(InvestorTable.portfolio_companies),
+            selectinload(InvestorTable.team_members),
+            selectinload(InvestorTable.sectors),
+        )
+        .filter(InvestorTable.id == db_investor.id)
+        .first()
+    )
+
+    # Transform to InvestorData format
+    return InvestorData(
+        investor=investor_with_relations,
+        portfolio_companies=investor_with_relations.portfolio_companies,
+        team_members=investor_with_relations.team_members,
+        sectors=investor_with_relations.sectors,
+    )
+
+
+@router.get("/investors/{investor_id}/similar", response_model=List[InvestorData])
+def find_similar_investors(
+    investor_id: int, 
+    limit: int = Query(10, description="Maximum number of similar investors to return"),
+    db: Session = Depends(get_db)
+):
+    """Find investors similar to a given investor based on characteristics"""
+    
+    # Get the target investor
+    target_investor = (
+        db.query(InvestorTable)
+        .options(
+            selectinload(InvestorTable.portfolio_companies),
+            selectinload(InvestorTable.team_members),
+            selectinload(InvestorTable.sectors),
+        )
+        .filter(InvestorTable.id == investor_id)
+        .first()
+    )
+
+    if not target_investor:
+        raise HTTPException(status_code=404, detail="Investor not found")
+
+    # Get target investor's sector IDs for comparison
+    target_sector_ids = {sector.id for sector in target_investor.sectors}
+
+    # Query all other investors with their relationships
+    candidates = (
+        db.query(InvestorTable)
+        .options(
+            selectinload(InvestorTable.portfolio_companies),
+            selectinload(InvestorTable.team_members),
+            selectinload(InvestorTable.sectors),
+        )
+        .filter(InvestorTable.id != investor_id)
+        .all()
+    )
+
+    # Calculate similarity scores
+    scored_investors = []
+    for candidate in candidates:
+        score = 0
+        
+        # Stage focus match (30 points)
+        if candidate.stage_focus == target_investor.stage_focus:
+            score += 30
+        
+        # Geographic focus match (20 points for exact, 10 for partial)
+        if candidate.geographic_focus and target_investor.geographic_focus:
+            if candidate.geographic_focus.lower() == target_investor.geographic_focus.lower():
+                score += 20
+            elif (candidate.geographic_focus.lower() in target_investor.geographic_focus.lower() or
+                  target_investor.geographic_focus.lower() in candidate.geographic_focus.lower()):
+                score += 10
+        
+        # Check size overlap (20 points max)
+        if (candidate.check_size_lower and candidate.check_size_upper and 
+            target_investor.check_size_lower and target_investor.check_size_upper):
+            # Calculate overlap percentage
+            overlap_start = max(candidate.check_size_lower, target_investor.check_size_lower)
+            overlap_end = min(candidate.check_size_upper, target_investor.check_size_upper)
+            if overlap_end > overlap_start:
+                overlap = overlap_end - overlap_start
+                target_range = target_investor.check_size_upper - target_investor.check_size_lower
+                overlap_ratio = overlap / target_range if target_range > 0 else 0
+                score += int(20 * overlap_ratio)
+        
+        # AUM similarity (15 points max)
+        if candidate.aum and target_investor.aum:
+            aum_diff = abs(candidate.aum - target_investor.aum)
+            max_aum = max(candidate.aum, target_investor.aum)
+            similarity_ratio = 1 - (aum_diff / max_aum) if max_aum > 0 else 0
+            score += int(15 * similarity_ratio)
+        
+        # Sector overlap (30 points max)
+        candidate_sector_ids = {sector.id for sector in candidate.sectors}
+        if target_sector_ids and candidate_sector_ids:
+            common_sectors = target_sector_ids.intersection(candidate_sector_ids)
+            overlap_ratio = len(common_sectors) / len(target_sector_ids)
+            score += int(30 * overlap_ratio)
+        
+        if score > 0:  # Only include investors with some similarity
+            scored_investors.append((score, candidate))
+    
+    # Sort by score (descending) and take top N
+    scored_investors.sort(key=lambda x: x[0], reverse=True)
+    similar_investors = [inv for score, inv in scored_investors[:limit]]
+    
+    # Transform to InvestorData format
+    return [
+        InvestorData(
+            investor=inv,
+            portfolio_companies=inv.portfolio_companies,
+            team_members=inv.team_members,
+            sectors=inv.sectors,
+        )
+        for inv in similar_investors
+    ]

app/routers/projects.py

@@ -0,0 +1,447 @@
+from typing import List, Optional
+
+from db.db import get_db
+from db.models import (
+    CompanyTable,
+    InvestorTable,
+    ProjectTable,
+    SectorTable,
+)
+from fastapi import APIRouter, Depends, HTTPException, Query
+from schemas.project_schemas import (
+    InvestmentStage,
+    ProjectCreate,
+    ProjectData,
+    ProjectUpdate,
+)
+from sqlalchemy.orm import Session, selectinload
+
+router = APIRouter(tags=["Project Routes"])
+
+
+@router.get("/projects", response_model=List[ProjectData])
+def read_projects(db: Session = Depends(get_db)):
+    """Get all projects with their related data"""
+    projects = (
+        db.query(ProjectTable)
+        .options(
+            selectinload(ProjectTable.sector),
+            selectinload(ProjectTable.investors),
+            selectinload(ProjectTable.companies),
+        )
+        .all()
+    )
+
+    # Transform ProjectTable objects to ProjectData format
+    project_data_list = []
+    for project in projects:
+        project_data = ProjectData(
+            project=project,
+            sector=project.sector,
+            investors=project.investors,
+            companies=project.companies,
+        )
+        project_data_list.append(project_data)
+
+    return project_data_list
+
+
+@router.get("/projects/{project_id}", response_model=ProjectData)
+def read_project(project_id: int, db: Session = Depends(get_db)):
+    """Get a specific project by ID"""
+    project = (
+        db.query(ProjectTable)
+        .options(
+            selectinload(ProjectTable.sector),
+            selectinload(ProjectTable.investors),
+            selectinload(ProjectTable.companies),
+        )
+        .filter(ProjectTable.id == project_id)
+        .first()
+    )
+
+    if not project:
+        raise HTTPException(status_code=404, detail="Project not found")
+
+    return ProjectData(
+        project=project,
+        sector=project.sector,
+        investors=project.investors,
+        companies=project.companies,
+    )
+
+
+@router.post("/projects", response_model=ProjectData)
+def create_project(project: ProjectCreate, db: Session = Depends(get_db)):
+    """Create a new project"""
+    db_project = ProjectTable(**project.dict())
+    db.add(db_project)
+    db.commit()
+    db.refresh(db_project)
+
+    # Reload with relationships
+    db_project = (
+        db.query(ProjectTable)
+        .options(
+            selectinload(ProjectTable.sector),
+            selectinload(ProjectTable.investors),
+            selectinload(ProjectTable.companies),
+        )
+        .filter(ProjectTable.id == db_project.id)
+        .first()
+    )
+
+    return ProjectData(
+        project=db_project,
+        sector=db_project.sector,
+        investors=db_project.investors,
+        companies=db_project.companies,
+    )
+
+
+@router.put("/projects/{project_id}", response_model=ProjectData)
+def update_project(
+    project_id: int, project: ProjectUpdate, db: Session = Depends(get_db)
+):
+    """Update an existing project"""
+    db_project = db.query(ProjectTable).filter(ProjectTable.id == project_id).first()
+
+    if not db_project:
+        raise HTTPException(status_code=404, detail="Project not found")
+
+    # Update only provided fields
+    update_data = project.dict(exclude_unset=True)
+    for key, value in update_data.items():
+        setattr(db_project, key, value)
+
+    db.commit()
+    db.refresh(db_project)
+
+    # Reload with relationships
+    db_project = (
+        db.query(ProjectTable)
+        .options(
+            selectinload(ProjectTable.sector),
+            selectinload(ProjectTable.investors),
+            selectinload(ProjectTable.companies),
+        )
+        .filter(ProjectTable.id == project_id)
+        .first()
+    )
+
+    return ProjectData(
+        project=db_project,
+        sector=db_project.sector,
+        investors=db_project.investors,
+        companies=db_project.companies,
+    )
+
+
+@router.delete("/projects/{project_id}")
+def delete_project(project_id: int, db: Session = Depends(get_db)):
+    """Delete a project"""
+    db_project = db.query(ProjectTable).filter(ProjectTable.id == project_id).first()
+
+    if not db_project:
+        raise HTTPException(status_code=404, detail="Project not found")
+
+    db.delete(db_project)
+    db.commit()
+
+    return {"message": "Project deleted successfully"}
+
+
+@router.get("/projects/filter", response_model=List[ProjectData])
+def filter_projects(
+    stage: Optional[InvestmentStage] = Query(
+        None, description="Filter by project stage"
+    ),
+    min_valuation: Optional[int] = Query(None, description="Minimum valuation"),
+    max_valuation: Optional[int] = Query(None, description="Maximum valuation"),
+    location: Optional[str] = Query(None, description="Location (partial match)"),
+    sector: Optional[str] = Query(None, description="Sector name (partial match)"),
+    investor_name: Optional[str] = Query(
+        None, description="Investor name (partial match)"
+    ),
+    company_name: Optional[str] = Query(
+        None, description="Company name (partial match)"
+    ),
+    db: Session = Depends(get_db),
+):
+    """Filter projects based on various criteria"""
+
+    # Start with base query
+    query = db.query(ProjectTable).options(
+        selectinload(ProjectTable.sector),
+        selectinload(ProjectTable.investors),
+        selectinload(ProjectTable.companies),
+    )
+
+    # Apply filters
+    if stage:
+        query = query.filter(ProjectTable.stage == stage)
+
+    if min_valuation is not None:
+        query = query.filter(ProjectTable.valuation >= min_valuation)
+
+    if max_valuation is not None:
+        query = query.filter(ProjectTable.valuation <= max_valuation)
+
+    if location:
+        query = query.filter(ProjectTable.location.ilike(f"%{location}%"))
+
+    if sector:
+        query = query.join(ProjectTable.sector).filter(
+            SectorTable.name.ilike(f"%{sector}%")
+        )
+
+    if investor_name:
+        query = query.join(ProjectTable.investors).filter(
+            InvestorTable.name.ilike(f"%{investor_name}%")
+        )
+
+    if company_name:
+        query = query.join(ProjectTable.companies).filter(
+            CompanyTable.name.ilike(f"%{company_name}%")
+        )
+
+    projects = query.all()
+
+    # Transform to ProjectData format
+    project_data_list = []
+    for project in projects:
+        project_data = ProjectData(
+            project=project,
+            sector=project.sector,
+            investors=project.investors,
+            companies=project.companies,
+        )
+        project_data_list.append(project_data)
+
+    return project_data_list
+
+
+# Association management routes
+@router.post("/projects/{project_id}/investors/{investor_id}")
+def add_investor_to_project(
+    project_id: int, investor_id: int, db: Session = Depends(get_db)
+):
+    """Add an investor to a project"""
+    # Check if project exists
+    project = db.query(ProjectTable).filter(ProjectTable.id == project_id).first()
+    if not project:
+        raise HTTPException(status_code=404, detail="Project not found")
+
+    # Check if investor exists
+    investor = db.query(InvestorTable).filter(InvestorTable.id == investor_id).first()
+    if not investor:
+        raise HTTPException(status_code=404, detail="Investor not found")
+
+    # Check if association already exists
+    if investor in project.investors:
+        raise HTTPException(
+            status_code=400, detail="Investor already associated with project"
+        )
+
+    # Add association
+    project.investors.append(investor)
+    db.commit()
+
+    return {"message": "Investor added to project successfully"}
+
+
+@router.delete("/projects/{project_id}/investors/{investor_id}")
+def remove_investor_from_project(
+    project_id: int, investor_id: int, db: Session = Depends(get_db)
+):
+    """Remove an investor from a project"""
+    # Check if project exists
+    project = db.query(ProjectTable).filter(ProjectTable.id == project_id).first()
+    if not project:
+        raise HTTPException(status_code=404, detail="Project not found")
+
+    # Check if investor exists
+    investor = db.query(InvestorTable).filter(InvestorTable.id == investor_id).first()
+    if not investor:
+        raise HTTPException(status_code=404, detail="Investor not found")
+
+    # Check if association exists
+    if investor not in project.investors:
+        raise HTTPException(
+            status_code=400, detail="Investor not associated with project"
+        )
+
+    # Remove association
+    project.investors.remove(investor)
+    db.commit()
+
+    return {"message": "Investor removed from project successfully"}
+
+
+@router.post("/projects/{project_id}/companies/{company_id}")
+def add_company_to_project(
+    project_id: int, company_id: int, db: Session = Depends(get_db)
+):
+    """Add a company to a project"""
+    # Check if project exists
+    project = db.query(ProjectTable).filter(ProjectTable.id == project_id).first()
+    if not project:
+        raise HTTPException(status_code=404, detail="Project not found")
+
+    # Check if company exists
+    company = db.query(CompanyTable).filter(CompanyTable.id == company_id).first()
+    if not company:
+        raise HTTPException(status_code=404, detail="Company not found")
+
+    # Check if association already exists
+    if company in project.companies:
+        raise HTTPException(
+            status_code=400, detail="Company already associated with project"
+        )
+
+    # Add association
+    project.companies.append(company)
+    db.commit()
+
+    return {"message": "Company added to project successfully"}
+
+
+@router.delete("/projects/{project_id}/companies/{company_id}")
+def remove_company_from_project(
+    project_id: int, company_id: int, db: Session = Depends(get_db)
+):
+    """Remove a company from a project"""
+    # Check if project exists
+    project = db.query(ProjectTable).filter(ProjectTable.id == project_id).first()
+    if not project:
+        raise HTTPException(status_code=404, detail="Project not found")
+
+    # Check if company exists
+    company = db.query(CompanyTable).filter(CompanyTable.id == company_id).first()
+    if not company:
+        raise HTTPException(status_code=404, detail="Company not found")
+
+    # Check if association exists
+    if company not in project.companies:
+        raise HTTPException(
+            status_code=400, detail="Company not associated with project"
+        )
+
+    # Remove association
+    project.companies.remove(company)
+    db.commit()
+
+    return {"message": "Company removed from project successfully"}
+
+
+@router.post("/projects/{project_id}/sectors/{sector_id}")
+def add_sector_to_project(
+    project_id: int, sector_id: int, db: Session = Depends(get_db)
+):
+    """Add a sector to a project"""
+    # Check if project exists
+    project = db.query(ProjectTable).filter(ProjectTable.id == project_id).first()
+    if not project:
+        raise HTTPException(status_code=404, detail="Project not found")
+
+    # Check if sector exists
+    sector = db.query(SectorTable).filter(SectorTable.id == sector_id).first()
+    if not sector:
+        raise HTTPException(status_code=404, detail="Sector not found")
+
+    # Check if association already exists
+    if sector in project.sector:
+        raise HTTPException(
+            status_code=400, detail="Sector already associated with project"
+        )
+
+    # Add association
+    project.sector.append(sector)
+    db.commit()
+
+    return {"message": "Sector added to project successfully"}
+
+
+@router.delete("/projects/{project_id}/sectors/{sector_id}")
+def remove_sector_from_project(
+    project_id: int, sector_id: int, db: Session = Depends(get_db)
+):
+    """Remove a sector from a project"""
+    # Check if project exists
+    project = db.query(ProjectTable).filter(ProjectTable.id == project_id).first()
+    if not project:
+        raise HTTPException(status_code=404, detail="Project not found")
+
+    # Check if sector exists
+    sector = db.query(SectorTable).filter(SectorTable.id == sector_id).first()
+    if not sector:
+        raise HTTPException(status_code=404, detail="Sector not found")
+
+    # Check if association exists
+    if sector not in project.sector:
+        raise HTTPException(
+            status_code=400, detail="Sector not associated with project"
+        )
+
+    # Remove association
+    project.sector.remove(sector)
+    db.commit()
+
+    return {"message": "Sector removed from project successfully"}
+
+
+# Bulk association management
+@router.post("/projects/{project_id}/investors")
+def add_multiple_investors_to_project(
+    project_id: int, investor_ids: List[int], db: Session = Depends(get_db)
+):
+    """Add multiple investors to a project"""
+    # Check if project exists
+    project = db.query(ProjectTable).filter(ProjectTable.id == project_id).first()
+    if not project:
+        raise HTTPException(status_code=404, detail="Project not found")
+
+    # Get all investors
+    investors = db.query(InvestorTable).filter(InvestorTable.id.in_(investor_ids)).all()
+
+    if len(investors) != len(investor_ids):
+        raise HTTPException(status_code=404, detail="One or more investors not found")
+
+    # Add associations (only if not already associated)
+    added_count = 0
+    for investor in investors:
+        if investor not in project.investors:
+            project.investors.append(investor)
+            added_count += 1
+
+    db.commit()
+
+    return {"message": f"Added {added_count} investors to project successfully"}
+
+
+@router.post("/projects/{project_id}/companies")
+def add_multiple_companies_to_project(
+    project_id: int, company_ids: List[int], db: Session = Depends(get_db)
+):
+    """Add multiple companies to a project"""
+    # Check if project exists
+    project = db.query(ProjectTable).filter(ProjectTable.id == project_id).first()
+    if not project:
+        raise HTTPException(status_code=404, detail="Project not found")
+
+    # Get all companies
+    companies = db.query(CompanyTable).filter(CompanyTable.id.in_(company_ids)).all()
+
+    if len(companies) != len(company_ids):
+        raise HTTPException(status_code=404, detail="One or more companies not found")
+
+    # Add associations (only if not already associated)
+    added_count = 0
+    for company in companies:
+        if company not in project.companies:
+            project.companies.append(company)
+            added_count += 1
+
+    db.commit()
+
+    return {"message": f"Added {added_count} companies to project successfully"}

app/schemas/project_schemas.py

@@ -0,0 +1,117 @@
+from datetime import datetime
+from enum import Enum
+from typing import List, Optional
+
+from pydantic import BaseModel
+
+
+class InvestmentStage(str, Enum):
+    SEED = "SEED"
+    SERIES_A = "SERIES_A"
+    SERIES_B = "SERIES_B"
+    SERIES_C = "SERIES_C"
+    GROWTH = "GROWTH"
+    LATE_STAGE = "LATE_STAGE"
+
+
+class SectorSchema(BaseModel):
+    id: int
+    name: str
+
+    class Config:
+        from_attributes = True
+
+
+class InvestorSchema(BaseModel):
+    id: int
+    name: str
+    description: Optional[str]
+    aum: int | None
+    check_size_lower: int | None
+    check_size_upper: int | None
+    geographic_focus: str | None
+    stage_focus: InvestmentStage
+    number_of_investments: int | None
+    created_at: Optional[datetime] = None
+    updated_at: Optional[datetime] = None
+
+    class Config:
+        from_attributes = True
+
+
+class CompanySchema(BaseModel):
+    id: int
+    name: str
+    industry: str | None
+    location: str | None
+    description: Optional[str]
+    founded_year: Optional[int]
+    website: Optional[str]
+    created_at: Optional[datetime] = None
+    updated_at: Optional[datetime] = None
+
+    class Config:
+        from_attributes = True
+
+
+class ProjectSchema(BaseModel):
+    id: int
+    name: str
+    valuation: int | None
+    stage: InvestmentStage | None
+    location: str | None
+    description: Optional[str]
+    start_date: Optional[datetime]
+    end_date: Optional[datetime]
+    created_at: Optional[datetime] = None
+    updated_at: Optional[datetime] = None
+
+    class Config:
+        from_attributes = True
+
+
+class ProjectCreate(BaseModel):
+    name: str
+    valuation: Optional[int] = None
+    stage: Optional[InvestmentStage] = None
+    location: Optional[str] = None
+    description: Optional[str] = None
+    start_date: Optional[datetime] = None
+    end_date: Optional[datetime] = None
+
+
+class ProjectUpdate(BaseModel):
+    name: Optional[str] = None
+    valuation: Optional[int] = None
+    stage: Optional[InvestmentStage] = None
+    location: Optional[str] = None
+    description: Optional[str] = None
+    start_date: Optional[datetime] = None
+    end_date: Optional[datetime] = None
+
+
+class ProjectData(BaseModel):
+    """Comprehensive project data schema"""
+
+    project: ProjectSchema
+    sector: List[SectorSchema]
+    investors: List[InvestorSchema]
+    companies: List[CompanySchema]
+
+    class Config:
+        from_attributes = True
+
+
+class ProjectInvestorAssociation(BaseModel):
+    project_id: int
+    investor_id: int
+
+
+class ProjectCompanyAssociation(BaseModel):
+    project_id: int
+    company_id: int
+
+
+class ProjectSectorAssociation(BaseModel):
+    project_id: int
+    sector_id: int

app/schemas/py_schemas.py

@@ -0,0 +1,356 @@
+from enum import Enum
+from typing import List, Optional
+
+from pydantic import BaseModel, Field, field_validator
+
+
+class InvestmentStage(str, Enum):
+    SEED = "SEED"
+    SERIES_A = "SERIES_A"
+    SERIES_B = "SERIES_B"
+    SERIES_C = "SERIES_C"
+    GROWTH = "GROWTH"
+    LATE_STAGE = "LATE_STAGE"
+
+
+class SectorSchema(BaseModel):
+    """
+    Expert parser: Only extract sector information if clearly identifiable.
+    Leave name empty if uncertain about the sector classification.
+    """
+
+    id: Optional[int] = Field(
+        default=None,
+        ge=0,
+        description="Sector ID, must be 0 or greater. Use 0 if uncertain.",
+    )
+    name: Optional[str] = Field(
+        default=None,
+        description="Sector name. Leave empty string if not clearly identifiable from the data.",
+    )
+
+    @field_validator("name", mode="before")
+    @classmethod
+    def empty_string_to_none(cls, v):
+        """Convert empty strings to None"""
+        if v == "" or (isinstance(v, str) and v.strip() == ""):
+            return None
+        return v
+
+    @field_validator("id", mode="before")
+    @classmethod
+    def zero_to_none(cls, v):
+        """Convert 0 to None for optional id field"""
+        if v == 0:
+            return None
+        return v
+
+    class Config:
+        from_attributes = True
+
+
+class InvestorMemberSchema(BaseModel):
+    """
+    Expert parser: Only extract team member information if clearly identifiable.
+    Leave fields empty if uncertain about the member details.
+    """
+
+    id: Optional[int] = Field(
+        default=None,
+        ge=0,
+        description="Member ID, must be 0 or greater. Use 0 if uncertain.",
+    )
+    name: Optional[str] = Field(
+        default=None,
+        description="Team member name. Leave empty string if not clearly identifiable.",
+    )
+    role: Optional[str] = Field(
+        default=None,
+        description="Team member role/title. Leave empty string if not clearly identifiable.",
+    )
+    email: Optional[str] = Field(
+        default=None,
+        description="Team member email. Leave empty string if not clearly identifiable or not provided.",
+    )
+    investor_id: Optional[int] = Field(
+        default=None,
+        ge=0,
+        description="Investor ID, must be 0 or greater. Use 0 if uncertain.",
+    )
+
+    @field_validator("name", "role", "email", mode="before")
+    @classmethod
+    def empty_string_to_none(cls, v):
+        """Convert empty strings to None"""
+        if v == "" or (isinstance(v, str) and v.strip() == ""):
+            return None
+        return v
+
+    @field_validator("id", "investor_id", mode="before")
+    @classmethod
+    def zero_to_none(cls, v):
+        """Convert 0 to None for optional integer fields"""
+        if v == 0:
+            return None
+        return v
+
+    class Config:
+        from_attributes = True
+
+
+class CompanyMemberSchema(BaseModel):
+    """
+    Expert parser: Only extract company member information if clearly identifiable.
+    Leave fields empty if uncertain about the member details.
+    """
+
+    id: Optional[int] = Field(
+        default=None,
+        ge=0,
+        description="Member ID, must be 0 or greater. Use 0 if uncertain.",
+    )
+    name: Optional[str] = Field(
+        default=None,
+        description="Company member name. Leave empty if not clearly identifiable.",
+    )
+    linkedin: Optional[str] = Field(
+        default=None,
+        description="LinkedIn profile URL. Leave empty if not provided or uncertain.",
+    )
+    role: Optional[str] = Field(
+        default=None,
+        description="Company member role/title. Leave empty if not clearly identifiable.",
+    )
+    company_id: Optional[int] = Field(
+        default=None,
+        ge=0,
+        description="Company ID, must be 0 or greater. Use 0 if uncertain.",
+    )
+
+    @field_validator("name", "linkedin", "role", mode="before")
+    @classmethod
+    def empty_string_to_none(cls, v):
+        """Convert empty strings to None"""
+        if v == "" or (isinstance(v, str) and v.strip() == ""):
+            return None
+        return v
+
+    @field_validator("id", "company_id", mode="before")
+    @classmethod
+    def zero_to_none(cls, v):
+        """Convert 0 to None for optional integer fields"""
+        if v == 0:
+            return None
+        return v
+
+    class Config:
+        from_attributes = True
+
+
+class CompanySchema(BaseModel):
+    """
+    Expert parser: Only extract company information if clearly identifiable.
+    Leave optional fields empty if uncertain. Integer values must be 0 or greater.
+    """
+
+    id: Optional[int] = Field(
+        default=None,
+        ge=0,
+        description="Company ID, must be 0 or greater. Use 0 if uncertain.",
+    )
+    name: Optional[str] = Field(
+        default=None,
+        description="Company name. Leave empty string if not clearly identifiable.",
+    )
+    industry: Optional[str] = Field(
+        default=None,
+        description="Company industry/sector. Leave empty string if not clearly identifiable.",
+    )
+    location: Optional[str] = Field(
+        default=None,
+        description="Company location/address. Leave empty string if not clearly identifiable.",
+    )
+    description: Optional[str] = Field(
+        default=None,
+        description="Company description. Leave empty if not clearly available or uncertain.",
+    )
+    founded_year: Optional[int] = Field(
+        default=None,
+        ge=0,
+        description="Year company was founded, must be 0 or greater. Leave None if not clearly identifiable or uncertain.",
+    )
+    website: Optional[str] = Field(
+        default=None,
+        description="Company website URL. Leave empty if not provided or uncertain.",
+    )
+
+    @field_validator(
+        "name", "industry", "location", "description", "website", mode="before"
+    )
+    @classmethod
+    def empty_string_to_none(cls, v):
+        """Convert empty strings to None"""
+        if v == "" or (isinstance(v, str) and v.strip() == ""):
+            return None
+        return v
+
+    @field_validator("id", "founded_year", mode="before")
+    @classmethod
+    def zero_to_none(cls, v):
+        """Convert 0 to None for founded_year"""
+        if v == 0:
+            return None
+        return v
+
+    @field_validator("founded_year", mode="before")
+    @classmethod
+    def validate_founded_year(cls, v):
+        """Expert parser: Only accept clearly identifiable founding years"""
+        if v is None or v == "Not Available" or v == "" or v == "Unknown":
+            return None
+        if isinstance(v, str):
+            try:
+                year = int(v)
+                return year if year >= 0 else None
+            except ValueError:
+                return None
+        return v if isinstance(v, int) and v >= 0 else None
+
+    class Config:
+        from_attributes = True
+
+
+class InvestorSchema(BaseModel):
+    """
+    Expert parser: Only extract investor information if clearly identifiable.
+    Leave optional fields empty if uncertain. All numeric values must be 0 or greater.
+    """
+
+    id: Optional[int] = Field(
+        default=None,
+        ge=0,
+        description="Investor ID, must be 0 or greater. Use 0 if uncertain.",
+    )
+    name: Optional[str] = Field(
+        default=None,
+        description="Investor name. Do not return any special characters, Just the name as a string.",
+    )
+    description: Optional[str] = Field(
+        default=None,
+        description="Investor description. Leave empty if not clearly available or uncertain.",
+    )
+    aum: Optional[int] = Field(
+        default=None,
+        ge=0,
+        description="Assets Under Management in USD, must be 0 or greater. Use 0 if not clearly identifiable or uncertain.",
+    )
+    check_size_lower: Optional[int] = Field(
+        default=None,
+        ge=0,
+        description="Lower bound of typical investment check size in USD, must be 0 or greater. Use 0 if not clearly identifiable.",
+    )
+    check_size_upper: Optional[int] = Field(
+        default=None,
+        ge=0,
+        description="Upper bound of typical investment check size in USD, must be 0 or greater. Use 0 if not clearly identifiable.",
+    )
+    geographic_focus: Optional[str] = Field(
+        default=None,
+        description="Geographic investment focus. Do not return any special characters, Just locations separated by commas. Leave empty if not clearly identifiable.",
+    )
+    stage_focus: InvestmentStage = Field(
+        default=InvestmentStage.SEED,
+        description="Investment stage focus. Use SEED as default if uncertain.",
+    )
+    number_of_investments: Optional[int] = Field(
+        default=None,
+        ge=0,
+        description="Total number of investments made, must be 0 or greater. Use 0 if not clearly identifiable.",
+    )
+
+    @field_validator("name", "description", "geographic_focus", mode="before")
+    @classmethod
+    def empty_string_to_none(cls, v):
+        """Convert empty strings to None"""
+        if v == "" or (isinstance(v, str) and v.strip() == ""):
+            return None
+        return v
+
+    @field_validator(
+        "id",
+        "aum",
+        "check_size_lower",
+        "check_size_upper",
+        "number_of_investments",
+        mode="before",
+    )
+    @classmethod
+    def zero_to_none(cls, v):
+        """Convert 0 to None for optional integer fields"""
+        if v == 0:
+            return None
+        return v
+
+    class Config:
+        from_attributes = True
+
+
+class InvestorData(BaseModel):
+    """
+    Expert parser: Comprehensive investor data schema for LLM processing.
+    Only populate fields with clearly identifiable information. Leave lists empty if uncertain.
+    """
+
+    investor: InvestorSchema = Field(
+        description="Core investor information. Only populate with clearly identifiable data."
+    )
+    portfolio_companies: List[CompanySchema] = Field(
+        default=[],
+        description="List of portfolio companies. Leave empty if not clearly identifiable.",
+    )
+    team_members: List[InvestorMemberSchema] = Field(
+        default=[],
+        description="List of team members. Leave empty if not clearly identifiable.",
+    )
+    sectors: List[SectorSchema] = Field(
+        default=[],
+        description="List of investment sectors. Leave empty if not clearly identifiable.",
+    )
+
+    class Config:
+        from_attributes = True
+
+
+class CompanyData(BaseModel):
+    """
+    Expert parser: Comprehensive company data schema for LLM processing.
+    Only populate fields with clearly identifiable information. Leave lists empty if uncertain.
+    """
+
+    company: CompanySchema = Field(
+        description="Core company information. Only populate with clearly identifiable data."
+    )
+    sectors: List[SectorSchema] = Field(
+        default=[],
+        description="List of company sectors. Leave empty if not clearly identifiable.",
+    )
+    members: List[CompanyMemberSchema] = Field(
+        default=[],
+        description="List of company members. Leave empty if not clearly identifiable.",
+    )
+    investors: List[InvestorSchema] = Field(
+        default=[],
+        description="List of investors. Leave empty if not clearly identifiable.",
+    )
+
+    class Config:
+        from_attributes = True
+
+
+class InvestorList(BaseModel):
+    """Expert parser: List of investors with clearly identifiable information only."""
+
+    investors: List[InvestorData] = Field(
+        default=[],
+        description="List of investors. Leave empty if no clearly identifiable investors.",
+    )

app/schemas/router_schemas.py

@@ -0,0 +1,101 @@
+from datetime import datetime
+from enum import Enum
+from typing import List, Optional
+
+from pydantic import BaseModel
+
+
+class InvestmentStage(str, Enum):
+    SEED = "SEED"
+    SERIES_A = "SERIES_A"
+    SERIES_B = "SERIES_B"
+    SERIES_C = "SERIES_C"
+    GROWTH = "GROWTH"
+    LATE_STAGE = "LATE_STAGE"
+
+
+class SectorSchema(BaseModel):
+    id: int
+    name: str
+
+    class Config:
+        from_attributes = True
+
+
+class InvestorMemberSchema(BaseModel):
+    id: int
+    name: str
+    role: str | None
+    email: str | None
+
+    class Config:
+        from_attributes = True
+
+
+class CompanyMemberSchema(BaseModel):
+    id: int
+    name: Optional[str]
+    linkedin: Optional[str]
+    role: Optional[str]
+    company_id: int
+
+    class Config:
+        from_attributes = True
+
+
+class CompanySchema(BaseModel):
+    id: int
+    name: str
+    industry: str | None
+    location: str | None
+    description: Optional[str]
+    founded_year: Optional[int]
+    website: Optional[str]
+    created_at: Optional[datetime] = None
+    updated_at: Optional[datetime] = None
+
+    class Config:
+        from_attributes = True
+
+
+class InvestorSchema(BaseModel):
+    id: int
+    name: str
+    description: Optional[str]
+    aum: int | None
+    check_size_lower: int | None
+    check_size_upper: int | None
+    geographic_focus: str | None
+    stage_focus: InvestmentStage
+    number_of_investments: int | None
+    created_at: Optional[datetime] = None
+    updated_at: Optional[datetime] = None
+
+    class Config:
+        from_attributes = True
+
+
+class InvestorData(BaseModel):
+    """Comprehensive investor data schema for LLM processing"""
+
+    investor: InvestorSchema
+    portfolio_companies: List[CompanySchema]
+    team_members: List[InvestorMemberSchema]
+    sectors: List[SectorSchema]
+
+    class Config:
+        from_attributes = True
+
+
+class CompanyData(BaseModel):  # Renamed from CompaniesData for consistency
+    company: CompanySchema
+    sectors: List[SectorSchema]
+    members: List[CompanyMemberSchema]
+    investors: List[InvestorSchema]
+
+    class Config:
+        from_attributes = True
+
+
+class InvestorList(BaseModel):
+    investors: List[InvestorData]

app/services/llm_parser.py

@@ -1,368 +1,337 @@
-import json
-import logging
+import asyncio
 import os
-from typing import Any, Dict, Optional
+from typing import Optional
 
-import chromadb
 import pandas as pd
-from dotenv import load_dotenv
-from openai import OpenAI
-
-from db import get_session, init_database
-from schema import CSVRow, Investor
-
-# Load environment variables
-load_dotenv()
-
-# Configure logging
-logging.basicConfig(level=logging.INFO)
-logger = logging.getLogger(__name__)
+from db.db import get_db_session
+from db.models import (
+    CompanyMember,
+    CompanyTable,
+    InvestorMember,
+    InvestorTable,
+    SectorTable,
+)
+from langchain_openai import ChatOpenAI
+from schemas.py_schemas import CompanyData, InvestorData
+from sqlalchemy.orm import Session
 
 
-class LLMInvestorParser:
+class InvestorProcessor:
     def __init__(self):
-        # Initialize OpenAI client
-        self.openai_client = OpenAI(api_key=os.getenv("OPENAI_API_KEY"))
-
-        # Initialize ChromaDB
-        self.chroma_client = chromadb.PersistentClient(path="./chroma_db")
-        self.collection = self.chroma_client.get_or_create_collection(
-            name="investor_descriptions",
-            metadata={
-                "description": "Investor descriptions and investment thesis focus"
-            },
-        )
-
-        # Initialize database
-        init_database()
-
-    def parse_json_field(self, json_str: str) -> Dict[str, Any]:
-        """Safely parse JSON string with LLM assistance if needed"""
-        if not json_str or json_str.strip() == "":
-            return {}
-
-        try:
-            # Try direct JSON parsing first
-            return json.loads(json_str)
-        except json.JSONDecodeError:
-            # If direct parsing fails, use LLM to clean and parse
-            logger.info("Direct JSON parsing failed, using LLM to clean JSON")
-            return self._llm_clean_json(json_str)
-
-    def _llm_clean_json(self, malformed_json: str) -> Dict[str, Any]:
-        """Use LLM to clean and parse malformed JSON"""
-        try:
-            prompt = f"""
-            The following text appears to be malformed JSON. Please clean it up and return valid JSON.
-            If it's not possible to create valid JSON, return an empty object {{}}.
-            
-            Original text:
-            {malformed_json[:2000]}  # Limit length for API
-            
-            Return only the cleaned JSON, no explanations:
-            """
-
-            response = self.openai_client.chat.completions.create(
-                model="gpt-3.5-turbo",
-                messages=[{"role": "user", "content": prompt}],
+        self.llm = ChatOpenAI(
+            api_key=os.getenv("OPENROUTER_API_KEY"),
+            base_url="https://openrouter.ai/api/v1",
+            model="openai/gpt-4o-mini",
             temperature=0,
         )
 
-            cleaned_json = response.choices[0].message.content.strip()
-            return json.loads(cleaned_json)
+        self.investor_structured_llm = self.llm.with_structured_output(InvestorData)
+        self.company_structured_llm = self.llm.with_structured_output(CompanyData)
 
-        except Exception as e:
-            logger.error(f"LLM JSON cleaning failed: {e}")
-            return {}
+    def _get_or_create_sector(self, db: Session, sector_name: str) -> SectorTable:
+        """Get existing sector or create new one"""
+        sector = db.query(SectorTable).filter(SectorTable.name == sector_name).first()
+        if not sector:
+            sector = SectorTable(name=sector_name)
+            db.add(sector)
+            db.flush()  # Get the ID without committing
+        return sector
 
-    def extract_structured_data(self, csv_row: CSVRow) -> Dict[str, Any]:
-        """Extract and structure data from CSV row using LLM"""
-        # Parse the investment firm profile
-        profile_data = {}
-        if csv_row.investment_firm_profile:
-            profile_data = self.parse_json_field(csv_row.investment_firm_profile)
-
-        # Create structured output
-        structured_data = {
-            "name": csv_row.name,
-            "website": csv_row.website or profile_data.get("websiteURL"),
-            "investor_description": profile_data.get("investorDescription", ""),
-            "investment_thesis_focus": profile_data.get("investmentThesisFocus", []),
-            "headquarters": profile_data.get("headquarters", ""),
-            "aum_info": profile_data.get("overallAssetsUnderManagement", {}),
-            "funds_info": profile_data.get("funds", []),
-            "crunchbase_urls": csv_row.crunchbase_linkedin_urls or "",
-            "crunchbase_extract": csv_row.crunchbase_firm_extract or "",
-            "linkedin_profile": csv_row.linkedin_investment_profile or "",
-            "source_truth_profile": csv_row.source_of_truth_profile or "",
-        }
-
-        return structured_data
-
-    def enhance_with_llm(self, investor_data: Dict[str, Any]) -> Dict[str, Any]:
-        """Use LLM to enhance and standardize investor data"""
-        try:
-            # Combine all available text for context
-            context_text = " ".join(
-                [
-                    investor_data.get("investor_description", ""),
-                    investor_data.get("crunchbase_extract", ""),
-                    investor_data.get("linkedin_profile", ""),
-                    investor_data.get("source_truth_profile", ""),
-                ]
+    def _save_investor_to_db(
+        self, db: Session, investor_data: InvestorData
+    ) -> InvestorTable:
+        """Save investor data to database"""
+        # Create investor record
+        investor = InvestorTable(
+            name=investor_data.investor.name,
+            description=investor_data.investor.description,
+            aum=investor_data.investor.aum,
+            check_size_lower=investor_data.investor.check_size_lower,
+            check_size_upper=investor_data.investor.check_size_upper,
+            geographic_focus=investor_data.investor.geographic_focus,
+            stage_focus=investor_data.investor.stage_focus,
+            number_of_investments=investor_data.investor.number_of_investments,
         )
+        db.add(investor)
+        db.flush()  # Get the ID
 
-            if not context_text.strip():
-                return investor_data
-
-            prompt = f"""
-            Based on the following information about an investor, please extract and standardize:
-            1. A concise investor description (2-3 sentences)
-            2. Investment thesis focus areas (list of specific focus areas)
-            3. Headquarters location (city, country format)
-            
-            Investor: {investor_data["name"]}
-            Context: {context_text[:3000]}  # Limit for API
-            
-            Return in JSON format:
-            {{
-                "enhanced_description": "concise description here",
-                "standardized_focus": ["focus area 1", "focus area 2", ...],
-                "standardized_headquarters": "City, Country"
-            }}
-            """
-
-            response = self.openai_client.chat.completions.create(
-                model="gpt-3.5-turbo",
-                messages=[{"role": "user", "content": prompt}],
-                temperature=0.3,
+        # Add team members
+        for member_data in investor_data.team_members:
+            member = InvestorMember(
+                name=member_data.name,
+                role=member_data.role,
+                email=member_data.email,
+                investor_id=investor.id,
             )
+            db.add(member)
 
-            enhanced_data = json.loads(response.choices[0].message.content)
+        # Add sectors
+        for sector_data in investor_data.sectors:
+            sector = self._get_or_create_sector(db, sector_data.name)
+            investor.sectors.append(sector)
 
-            # Update investor data with enhanced information
-            if enhanced_data.get("enhanced_description"):
-                investor_data["enhanced_description"] = enhanced_data[
-                    "enhanced_description"
-                ]
+        # Add portfolio companies
+        for company_schema in investor_data.portfolio_companies:
+            # Convert CompanySchema to CompanyData format
+            company_data = CompanyData(
+                company=company_schema,
+                sectors=[],  # Will be empty for portfolio companies
+                members=[],  # Will be empty for portfolio companies
+                investors=[],  # Will be empty for portfolio companies
+            )
+            company = self._save_company_to_db(db, company_data, skip_investors=True)
+            investor.portfolio_companies.append(company)
 
-            if enhanced_data.get("standardized_focus"):
-                investor_data["standardized_focus"] = enhanced_data[
-                    "standardized_focus"
-                ]
+        return investor
 
-            if enhanced_data.get("standardized_headquarters"):
-                investor_data["standardized_headquarters"] = enhanced_data[
-                    "standardized_headquarters"
-                ]
-
-            return investor_data
-
-        except Exception as e:
-            logger.error(f"LLM enhancement failed for {investor_data['name']}: {e}")
-            return investor_data
-
-    def save_to_sql(self, investor_data: Dict[str, Any]) -> int:
-        """Save investor data to SQL database"""
-        try:
-            with get_session() as session:
-                # Check if investor already exists
-                existing = (
-                    session.query(Investor)
-                    .filter_by(name=investor_data["name"])
+    def _save_company_to_db(
+        self, db: Session, company_data: CompanyData, skip_investors: bool = False
+    ) -> CompanyTable:
+        """Save company data to database"""
+        # Check if company already exists
+        existing_company = (
+            db.query(CompanyTable)
+            .filter(CompanyTable.name == company_data.company.name)
             .first()
         )
+        if existing_company:
+            return existing_company
 
-                if existing:
-                    logger.info(f"Updating existing investor: {investor_data['name']}")
-                    investor = existing
+        # Create company record
+        company = CompanyTable(
+            name=company_data.company.name,
+            industry=company_data.company.industry,
+            location=company_data.company.location,
+            description=company_data.company.description,
+            founded_year=company_data.company.founded_year,
+            website=company_data.company.website,
+        )
+        db.add(company)
+        db.flush()  # Get the ID
+
+        # Add company members
+        for member_data in company_data.members:
+            if member_data.name:  # Only add members with names
+                member = CompanyMember(
+                    name=member_data.name,
+                    linkedin=member_data.linkedin,
+                    role=member_data.role,
+                    company_id=company.id,
+                )
+                db.add(member)
+
+        # Add sectors
+        for sector_data in company_data.sectors:
+            sector = self._get_or_create_sector(db, sector_data.name)
+            company.sectors.append(sector)
+
+        # Add investors (if not skipping to avoid circular references)
+        if not skip_investors:
+            for investor_data in company_data.investors:
+                # Look for existing investor by name
+                existing_investor = (
+                    db.query(InvestorTable)
+                    .filter(InvestorTable.name == investor_data.name)
+                    .first()
+                )
+                if existing_investor:
+                    company.investors.append(existing_investor)
+
+        return company
+
+    async def _process_row(
+        self, row: pd.Series, row_idx: int, is_investor: bool = True
+    ) -> Optional[InvestorData | CompanyData]:
+        """Process a single row of data"""
+        # Clean values to remove control characters
+        cleaned_row = {}
+        for key, value in row.items():
+            if pd.notna(value):
+                # Convert to string and clean control characters
+                clean_value = (
+                    str(value).replace("\n", " ").replace("\r", " ").replace("\t", " ")
+                )
+                # Remove other control characters
+                clean_value = "".join(
+                    char
+                    for char in clean_value
+                    if ord(char) >= 32 or char in ["\n", "\r", "\t"]
+                )
+                cleaned_row[key] = clean_value
+
+        row_str = ", ".join([f"{key}: {value}" for key, value in cleaned_row.items()])
+        try:
+            print(f"Processing row {row_idx + 1}...")
+            if is_investor:
+                result = await self.investor_structured_llm.ainvoke(row_str)
             else:
-                    logger.info(f"Creating new investor: {investor_data['name']}")
-                    investor = Investor()
-
-                # Map data to investor object
-                investor.name = investor_data["name"]
-                investor.website = investor_data.get("website")
-                investor.investor_description = investor_data.get(
-                    "enhanced_description"
-                ) or investor_data.get("investor_description")
-                investor.investment_thesis_focus = investor_data.get(
-                    "standardized_focus"
-                ) or investor_data.get("investment_thesis_focus")
-                investor.headquarters = investor_data.get(
-                    "standardized_headquarters"
-                ) or investor_data.get("headquarters")
-
-                # AUM information
-                aum_info = investor_data.get("aum_info", {})
-                investor.aum_amount = aum_info.get("aumAmount")
-                investor.aum_as_of_date = aum_info.get("asOfDate")
-                investor.aum_source_url = aum_info.get("sourceUrl")
-
-                # Fund information
-                investor.funds_info = investor_data.get("funds_info", [])
-
-                # Raw data
-                investor.crunchbase_urls = investor_data.get("crunchbase_urls")
-                investor.crunchbase_extract = investor_data.get("crunchbase_extract")
-                investor.linkedin_profile = investor_data.get("linkedin_profile")
-                investor.source_truth_profile = investor_data.get(
-                    "source_truth_profile"
-                )
-
-                if not existing:
-                    session.add(investor)
-
-                session.flush()  # Get the ID
-                return investor.id
-
+                result = await self.company_structured_llm.ainvoke(row_str)
+            if result:
+                return result.model_dump()
+            return None
         except Exception as e:
-            logger.error(f"Failed to save to SQL: {e}")
-            raise
-
-    def save_to_vector_db(self, investor_id: int, investor_data: Dict[str, Any]):
-        """Save investor description and focus to ChromaDB"""
-        try:
-            # Prepare text for embedding
-            description_text = investor_data.get(
-                "enhanced_description"
-            ) or investor_data.get("investor_description", "")
-            focus_areas = investor_data.get("standardized_focus") or investor_data.get(
-                "investment_thesis_focus", []
-            )
-
-            if isinstance(focus_areas, list):
-                focus_text = " ".join(focus_areas)
-            else:
-                focus_text = str(focus_areas)
-
-            # Combine description and focus for embedding
-            combined_text = f"{description_text} {focus_text}".strip()
-
-            if not combined_text:
-                logger.warning(f"No text to embed for investor {investor_data['name']}")
-                return
-
-            # Create metadata
-            metadata = {
-                "investor_id": investor_id,
-                "name": investor_data["name"],
-                "website": investor_data.get("website", ""),
-                "headquarters": investor_data.get("standardized_headquarters")
-                or investor_data.get("headquarters", ""),
-                "focus_areas_count": len(focus_areas)
-                if isinstance(focus_areas, list)
-                else 0,
-            }
-
-            # Add to ChromaDB
-            self.collection.add(
-                documents=[combined_text],
-                metadatas=[metadata],
-                ids=[f"investor_{investor_id}"],
-            )
-
-            logger.info(f"Added investor {investor_data['name']} to vector database")
-
-        except Exception as e:
-            logger.error(f"Failed to save to vector DB: {e}")
-
-    def process_csv_file(self, csv_file_path: str, limit: Optional[int] = None):
-        """Process the entire CSV file"""
-        logger.info(f"Starting to process CSV file: {csv_file_path}")
-
-        # Read CSV
-        df = pd.read_csv(csv_file_path)
-        logger.info(f"Loaded {len(df)} rows from CSV")
-
-        if limit:
-            df = df.head(limit)
-            logger.info(f"Processing limited to {limit} rows")
-
-        processed_count = 0
-        error_count = 0
-
-        for index, row in df.iterrows():
-            try:
-                logger.info(f"Processing row {index + 1}/{len(df)}: {row['Name']}")
-
-                # Create CSVRow object
-                csv_row = CSVRow(
-                    name=row["Name"],
-                    website=row.get("Website"),
-                    investment_firm_profile=row.get("Investment Firm Profile"),
-                    crunchbase_linkedin_urls=row.get("Crunchbase & LinkedIn URLs"),
-                    crunchbase_firm_extract=row.get("Crunchbase Firm Extract"),
-                    linkedin_investment_profile=row.get("LinkedIn Investment Profile"),
-                    source_of_truth_profile=row.get("Source of Truth Profile"),
-                )
-
-                # Extract structured data
-                structured_data = self.extract_structured_data(csv_row)
-
-                # Enhance with LLM
-                enhanced_data = self.enhance_with_llm(structured_data)
-
-                # Save to SQL database
-                investor_id = self.save_to_sql(enhanced_data)
-
-                # Save to vector database
-                self.save_to_vector_db(investor_id, enhanced_data)
-
-                processed_count += 1
-
-                # Progress update every 10 rows
-                if (index + 1) % 10 == 0:
-                    logger.info(
-                        f"Processed {processed_count} rows successfully, {error_count} errors"
-                    )
-
-            except Exception as e:
-                error_count += 1
-                logger.error(
-                    f"Error processing row {index + 1} ({row.get('Name', 'Unknown')}): {e}"
-                )
-                continue
-
-        logger.info(
-            f"Processing complete! Processed: {processed_count}, Errors: {error_count}"
-        )
-        return processed_count, error_count
-
-    def search_investors(self, query: str, limit: int = 5):
-        """Search investors using vector similarity"""
-        try:
-            results = self.collection.query(query_texts=[query], n_results=limit)
-
-            return results
-
-        except Exception as e:
-            logger.error(f"Search failed: {e}")
+            print(f"Error processing row {row_idx + 1}: {e}")
             return None
 
+    async def parse_investors(self, df, save_to_db: bool = True):
+        """Parse investors from DataFrame and optionally save to database"""
+        investors = []
+        df = df[20:]
+        db = None
+        if save_to_db:
+            db = get_db_session()
 
-def main():
-    """Main function to run the parser"""
-    parser = LLMInvestorParser()
+        try:
+            # Process rows in batches asynchronously
+            batch_size = 20  # Adjust batch size as needed
+            rows = [(idx, row) for idx, row in df.iterrows()]
 
-    # Process the CSV file
-    csv_file = "/home/oluwasanmi/Documents/Work/MKD/anton_wireframe/New Excerpt 5 investors - Sheet1 parse.csv"
+            for i in range(0, len(rows), batch_size):
+                batch = rows[i : i + batch_size]
 
-    # Start with a small sample for testing
-    processed, errors = parser.process_csv_file(csv_file, limit=5)
+                # Process batch asynchronously
+                tasks = [
+                    self._process_row(row, idx, is_investor=True) for idx, row in batch
+                ]
 
-    print("\nProcessing complete!")
-    print(f"Successfully processed: {processed} investors")
-    print(f"Errors encountered: {errors}")
+                batch_results = await asyncio.gather(*tasks, return_exceptions=True)
 
-    # Test search functionality
-    print("\nTesting search functionality...")
-    results = parser.search_investors("bioeconomy circular economy")
-    if results:
-        print(f"Found {len(results['documents'][0])} similar investors")
-        for i, doc in enumerate(results["documents"][0]):
-            print(f"  {i + 1}. {results['metadatas'][0][i]['name']}")
+                # Handle results from batch
+                for (idx, row), result in zip(batch, batch_results):
+                    if isinstance(result, Exception):
+                        print(f"Error processing row {idx}: {result}")
+                        if db:
+                            db.rollback()
+                        continue
+
+                    if result:
+                        # Convert dict to InvestorData if needed
+                        if isinstance(result, dict):
+                            investor_data = InvestorData(**result)
+                        else:
+                            investor_data = result
+
+                        investors.append(investor_data)
+
+                        # Save to database if requested
+                        if save_to_db and db:
+                            try:
+                                saved_investor = self._save_investor_to_db(
+                                    db, investor_data
+                                )
+                                db.commit()
+                                print(
+                                    f"✅ Saved investor '{saved_investor.name}' to database"
+                                )
+                            except Exception as e:
+                                db.rollback()
+                                print(f"❌ Failed to save investor to database: {e}")
+
+                print(
+                    f"Completed batch {i // batch_size + 1} of {(len(rows) + batch_size - 1) // batch_size}"
+                )
+
+        except Exception as e:
+            print(f"Error in batch processing: {e}")
+            if db:
+                db.rollback()
+        finally:
+            if db:
+                db.close()
+
+        return investors
+
+    async def parse_companies(self, df, save_to_db: bool = True):
+        """Parse companies from DataFrame and optionally save to database"""
+        companies = []
+        df = df[20:]
+        db = None
+        if save_to_db:
+            db = get_db_session()
+
+        try:
+            # Process rows in batches asynchronously
+            batch_size = 20  # Adjust batch size as needed
+            rows = [(idx, row) for idx, row in df.iterrows()]
+
+            for i in range(0, len(rows), batch_size):
+                batch = rows[i : i + batch_size]
+
+                # Process batch asynchronously
+                tasks = [
+                    self._process_row(row, idx, is_investor=False) for idx, row in batch
+                ]
+
+                batch_results = await asyncio.gather(*tasks, return_exceptions=True)
+
+                # Handle results from batch
+                for (idx, row), result in zip(batch, batch_results):
+                    if isinstance(result, Exception):
+                        print(f"Error processing row {idx}: {result}")
+                        if db:
+                            db.rollback()
+                        continue
+
+                    if result:
+                        # Convert dict to CompanyData if needed
+                        if isinstance(result, dict):
+                            company_data = CompanyData(**result)
+                        else:
+                            company_data = result
+
+                        companies.append(company_data)
+
+                        # Save to database if requested
+                        if save_to_db and db:
+                            try:
+                                saved_company = self._save_company_to_db(
+                                    db, company_data
+                                )
+                                db.commit()
+                                print(
+                                    f"✅ Saved company '{saved_company.name}' to database"
+                                )
+                            except Exception as e:
+                                db.rollback()
+                                print(f"❌ Failed to save company to database: {e}")
+
+                    print(
+                        f"Completed batch {i // batch_size + 1} of {(len(rows) + batch_size - 1) // batch_size}"
+                    )
+
+        except Exception as e:
+            print(f"Error processing row {idx}: {e}")
+            if db:
+                db.rollback()
+        finally:
+            if db:
+                db.close()
+
+        return companies
 
 
-if __name__ == "__main__":
-    main()
+# async def main():
+#     """Main execution function"""
+#     # Initialize database tables
+#     print("🔧 Initializing database...")
+#     init_database()
+
+#     # Create processor
+#     processor = InvestorProcessor()
+
+#     print("📊 Processing companies...")
+#     companies = await processor.parse_companies(
+#         "data/19 Companies data.csv", save_to_db=True
+#     )
+#     print(f"Processed {len(companies)} companies")
+
+#     print("\n💰 Processing investors...")
+#     investors = await processor.parse_investors(
+#         "data/19 Investors data.csv", save_to_db=True
+#     )
+#     print(f"Processed {len(investors)} investors")
+#     print("\n✨ Processing complete!")
+
+
+# if __name__ == "__main__":
+#     asyncio.run(main())

app/services/openrouter.py

@@ -1,293 +0,0 @@
-import asyncio
-from typing import List, Optional
-
-import chromadb
-import pandas as pd
-from db.models import CompanyTable, InvestorTable, InvestorTeamMember, SectorTable
-from langchain_core.prompts import PromptTemplate
-from langchain_openai import ChatOpenAI
-from py_schemas import InvestorData
-from pydantic import BaseModel
-from settings import settings
-
-
-class InvestorList(BaseModel):
-    """Schema for LLM structured output"""
-
-    investor_list: List[InvestorData]
-
-
-class InvestorProcessor:
-    def __init__(
-        self,
-        sql_session: Optional[object] = None,
-        vector_db_client: Optional[object] = None,
-    ):
-        self.template = """You are an expert data extraction assistant. Extract investor information from the provided CSV data and return it as a list of structured records.
-
-Given the following CSV data rows:
-{question}
-
-For each row, extract and structure the following fields for the investor:
-- name: The investor's full name
-- description: Description of the investor
-- aum: Assets under management (as integer, use 0 if not available)
-- check_size_lower: Lower bound of investment check size (as integer)
-- check_size_upper: Upper bound of investment check size (as integer)
-- geographic_focus: Geographic region focus
-- stage_focus: Investment stage focus (must be one of: seed, series_a, series_b, series_c, growth, late_stage)
-- number_of_investments: Number of investments made (default 0)
-
-Also extract related data:
-- portfolio_companies: List of companies they've invested in
-- team_members: List of team members with name, role, email
-- sectors: List of sectors they focus on
-
-Important: 
-- If a field is not available, use appropriate defaults
-- stage_focus must be one of the valid enum values
-- Return clean, valid JSON only
-
-Return the data as a structured list of comprehensive investor data."""
-
-        self.prompt = PromptTemplate(
-            template=self.template, input_variables=["question"]
-        )
-
-        self.llm = ChatOpenAI(
-            api_key=settings.OPENROUTER_API_KEY,
-            base_url="https://openrouter.ai/api/v1",
-            model="google/gemini-2.5-flash-lite",
-            temperature=0,
-        )
-
-        self.structured_llm = self.llm.with_structured_output(InvestorList)
-        self.sql_session = sql_session
-        self.vector_db_client = vector_db_client
-
-        self.vector_db_client = chromadb.PersistentClient(path="./chroma_db")
-        self.collection = self.vector_db_client.get_or_create_collection(
-            name="investor_descriptions",
-            metadata={
-                "description": "Investor descriptions and investment thesis focus"
-            },
-        )
-
-    async def _process_batch(
-        self, batch: pd.DataFrame, batch_idx: int
-    ) -> List[InvestorData]:
-        """Process a single batch of data"""
-        # Convert batch to string representation - clean the data
-        batch_str = ""
-        for idx, row in batch.iterrows():
-            # Clean values to remove control characters
-            cleaned_row = {}
-            for key, value in row.items():
-                if pd.notna(value):
-                    # Convert to string and clean control characters
-                    clean_value = (
-                        str(value)
-                        .replace("\n", " ")
-                        .replace("\r", " ")
-                        .replace("\t", " ")
-                    )
-                    # Remove other control characters
-                    clean_value = "".join(
-                        char
-                        for char in clean_value
-                        if ord(char) >= 32 or char in ["\n", "\r", "\t"]
-                    )
-                    cleaned_row[key] = clean_value
-
-            row_str = ", ".join(
-                [f"{key}: {value}" for key, value in cleaned_row.items()]
-            )
-            batch_str += f"Row {idx + 1}: {row_str}\n"
-
-        try:
-            print(f"Processing batch {batch_idx + 1}...")
-            batch_results = await self.structured_llm.ainvoke(batch_str)
-            return batch_results.investor_list
-        except Exception as e:
-            print(f"Error processing batch {batch_idx + 1}: {e}")
-            return []
-
-    async def _save_to_sql(self, investor_data_list: List[InvestorData]) -> None:
-        """Save investors and related data to SQL database"""
-        if not self.sql_session:
-            return
-
-        try:
-            for investor_data in investor_data_list:
-                # Save investor
-                db_investor = InvestorTable(
-                    name=investor_data.investor.name,
-                    description=investor_data.investor.description,
-                    aum=investor_data.investor.aum,
-                    check_size_lower=investor_data.investor.check_size_lower,
-                    check_size_upper=investor_data.investor.check_size_upper,
-                    geographic_focus=investor_data.investor.geographic_focus,
-                    stage_focus=investor_data.investor.stage_focus,
-                    number_of_investments=investor_data.investor.number_of_investments,
-                )
-                self.sql_session.add(db_investor)
-                self.sql_session.flush()  # Get the ID
-
-                # Save sectors and create associations
-                for sector_data in investor_data.sectors:
-                    # Check if sector exists, create if not
-                    existing_sector = (
-                        self.sql_session.query(SectorTable)
-                        .filter(SectorTable.name == sector_data.name)
-                        .first()
-                    )
-
-                    if not existing_sector:
-                        db_sector = SectorTable(name=sector_data.name)
-                        self.sql_session.add(db_sector)
-                        self.sql_session.flush()
-                        # Add sector to investor's sectors
-                        db_investor.sectors.append(db_sector)
-                    else:
-                        # Add existing sector to investor if not already there
-                        if existing_sector not in db_investor.sectors:
-                            db_investor.sectors.append(existing_sector)
-
-                # Save companies and create portfolio associations
-                for company_data in investor_data.portfolio_companies:
-                    # Check if company exists, create if not
-                    existing_company = (
-                        self.sql_session.query(CompanyTable)
-                        .filter(CompanyTable.name == company_data.name)
-                        .first()
-                    )
-
-                    if not existing_company:
-                        db_company = CompanyTable(
-                            name=company_data.name,
-                            industry=company_data.industry,
-                            location=company_data.location,
-                            founded_year=company_data.founded_year,
-                            website=company_data.website,
-                        )
-                        self.sql_session.add(db_company)
-                        self.sql_session.flush()
-
-                        # Add to investor's portfolio
-                        db_investor.portfolio_companies.append(db_company)
-                    else:
-                        # Add existing company to portfolio if not already there
-                        if existing_company not in db_investor.portfolio_companies:
-                            db_investor.portfolio_companies.append(existing_company)
-
-                # Save team members
-                for team_member_data in investor_data.team_members:
-                    # Check if team member exists
-                    existing_member = (
-                        self.sql_session.query(InvestorTeamMember)
-                        .filter(InvestorTeamMember.email == team_member_data.email)
-                        .first()
-                    )
-
-                    if not existing_member:
-                        db_team_member = InvestorTeamMember(
-                            name=team_member_data.name,
-                            role=team_member_data.role,
-                            email=team_member_data.email,
-                            investor_id=db_investor.id,
-                        )
-                        self.sql_session.add(db_team_member)
-
-            self.sql_session.commit()
-            print(f"Successfully saved {len(investor_data_list)} investors to database")
-
-        except Exception as e:
-            self.sql_session.rollback()
-            print(f"Error saving to SQL database: {e}")
-            raise
-
-    async def _save_to_vector_db(self, investor_data_list: List[InvestorData]) -> None:
-        """Save investors to vector database"""
-        if not self.vector_db_client:
-            return
-
-        documents = []
-        metadatas = []
-        ids = []
-
-        for i, investor_data in enumerate(investor_data_list):
-            investor = investor_data.investor
-            sectors = ", ".join([s.name for s in investor_data.sectors])
-            companies = ", ".join([c.name for c in investor_data.portfolio_companies])
-
-            doc_text = f"""
-            Investor: {investor.name}
-            Description: {investor.description or "N/A"}
-            AUM: ${investor.aum:,}
-            Check Size: ${investor.check_size_lower:,} - ${investor.check_size_upper:,}
-            Geographic Focus: {investor.geographic_focus}
-            Stage Focus: {investor.stage_focus.value}
-            Sectors: {sectors}
-            Portfolio Companies: {companies}
-            """.strip()
-
-            documents.append(doc_text)
-            metadatas.append(
-                {
-                    "name": investor.name,
-                    "stage_focus": investor.stage_focus.value,
-                    "geographic_focus": investor.geographic_focus,
-                    "aum": investor.aum,
-                }
-            )
-            ids.append(
-                f"investor_{i}_{investor.name.replace(' ', '_').replace('/', '_')}"
-            )
-
-        if documents:
-            try:
-                self.collection.add(documents=documents, metadatas=metadatas, ids=ids)
-                print(
-                    f"Successfully saved {len(documents)} investors to vector database"
-                )
-            except Exception as e:
-                print(f"Error saving to vector database: {e}")
-
-    async def process_csv(
-        self, df: pd.DataFrame, batch_size: int = 10, max_concurrent: int = 10
-    ) -> List[InvestorData]:
-        """Process CSV data in parallel batches and save to databases"""
-        results = []
-
-        # Create batches
-        batches = []
-        for i in range(0, len(df), batch_size):
-            batch = df.iloc[i : i + batch_size]
-            batches.append((batch, i // batch_size))
-
-        # Process batches with concurrency control
-        semaphore = asyncio.Semaphore(max_concurrent)
-
-        async def process_with_semaphore(batch_data):
-            batch, batch_idx = batch_data
-            async with semaphore:
-                return await self._process_batch(batch, batch_idx)
-
-        # Execute all batches concurrently
-        batch_results = await asyncio.gather(
-            *[process_with_semaphore(batch_data) for batch_data in batches],
-            return_exceptions=True,
-        )
-
-        # Collect results, filtering out exceptions
-        for batch_result in batch_results:
-            if not isinstance(batch_result, Exception):
-                results.extend(batch_result)
-
-        # Save to databases
-        if results:
-            print(f"Successfully processed {len(results)} investors")
-            await self._save_to_sql(results)
-            await self._save_to_vector_db(results)
-
-        return results

app/services/querying.py

@@ -1,83 +1,118 @@
-from typing import Optional
+import os
+from typing import List
 
-import chromadb
+from db.db import DATABASE_URL, get_db
+from db.models import InvestorTable
 from langchain import hub
 from langchain_community.agent_toolkits import SQLDatabaseToolkit
 from langchain_community.utilities import SQLDatabase
 from langchain_openai import ChatOpenAI
 from langgraph.prebuilt import create_react_agent
-from py_schemas import InvestorList
-from settings import settings
+from schemas.py_schemas import InvestorData, InvestorList
+from sqlalchemy.orm import selectinload
 
 # Connect to SQLite
-
 prompt_template = hub.pull("langchain-ai/sql-agent-system-prompt")
-db = SQLDatabase.from_uri("sqlite:///investors.db")
-system_message = (
-    prompt_template.format(dialect="SQLite", top_k=5)
-    + "\n Get answers from the Sql database and the vector database"
-)
+db = SQLDatabase.from_uri(DATABASE_URL)
 
 
 class QueryProcessor:
-    def __init__(
-        self,
-        sql_session: Optional[object] = None,
-        vector_db_client: Optional[object] = None,
-    ):
+    def __init__(self):
         self.llm = ChatOpenAI(
-            api_key=settings.OPENROUTER_API_KEY,
+            api_key=os.getenv("OPENROUTER_API_KEY"),
             base_url="https://openrouter.ai/api/v1",
-            model="google/gemini-2.5-flash-lite",
-            temperature=0.3,
+            model="openai/gpt-4o-mini",
+            temperature=0,
         )
         self.toolkit = SQLDatabaseToolkit(db=db, llm=self.llm)
+        # Update system message to specifically request only investor IDs
+        system_message_updated = (
+            prompt_template.format(dialect="SQLite", top_k=5)
+            + "\n\nIMPORTANT: You must ONLY return the investor IDs (id field) that match the user's criteria. "
+            + "Do NOT return any other information, explanations, or data. "
+            + "Your response should be ONLY a comma-separated list of numbers representing the investor IDs. "
+            + "Example format: 1, 5, 12, 23"
+        )
         self.agent = create_react_agent(
             model=self.llm,
-            tools=self.toolkit.get_tools() + [self.query_vector_database],
-            prompt=system_message,
-            response_format=InvestorList,
+            tools=self.toolkit.get_tools(),
+            prompt=system_message_updated,
         )
-        self.vector_db_client = vector_db_client
-
-        self.vector_db_client = chromadb.PersistentClient(path="./chroma_db")
-        self.collection = self.vector_db_client.get_or_create_collection(
-            name="investor_descriptions",
-            metadata={
-                "description": "Investor descriptions and investment thesis focus"
-            },
-        )
-
-    def query_sql_database(self, query: str) -> Optional[InvestorList]:
-        """Query the SQL database for investor information."""
-        if not self.sql_session:
-            return None
-
-        # Implement SQL querying logic here
-        result = self.sql_session.execute(query)
-        investors = result.scalars().all()
-        return InvestorList(investors=investors)
-
-    def query_vector_database(self, query: str) -> Optional[InvestorList]:
-        """Query the vector database for investor information."""
-        if not self.vector_db_client:
-            return None
-        print("VECTOR STORE WAS CALLED")
-
-        # Query the collection directly, not passing collection as parameter
-        results = self.collection.query(
-            query_texts=[query],  # ChromaDB expects a list of query texts
-            n_results=3,  # Specify how many results you want
-        )
-        print(results)
-
-        # ChromaDB returns results in a different structure
-        # results will have 'documents', 'metadatas', 'ids', 'distances'
-        return results
 
     def process_query(self, question: str) -> InvestorList:
-        """Process a query using the LLM and return structured investor data."""
+        """Process a query using the LLM and return investor data."""
+        # Let the LLM handle all database interactions and filtering to get IDs
         response = self.agent.invoke(
             {"messages": [("user", question)]},
         )
-        return response
+
+        # Extract the actual message content
+        ai_response = (
+            response["messages"][-1].content if response.get("messages") else ""
+        )
+
+        # Extract investor IDs from the AI response
+        investor_ids = self._extract_investor_ids_from_response(ai_response)
+
+        # Fetch full investor data using the IDs
+        return self._fetch_investors_by_ids(investor_ids)
+
+    def _extract_investor_ids_from_response(self, ai_response: str) -> List[int]:
+        """Extract investor IDs from AI response."""
+        import re
+
+        investor_ids = []
+        try:
+            # Try multiple patterns to extract IDs from the response
+            # Pattern 1: Simple numbers (assuming they are IDs)
+            numbers = re.findall(r"\b\d+\b", ai_response)
+            investor_ids = [int(num) for num in numbers]
+
+            # Pattern 2: If response contains explicit ID references
+            id_matches = re.findall(r"\bid[:\s]*(\d+)", ai_response.lower())
+            if id_matches:
+                investor_ids = [int(id_str) for id_str in id_matches]
+
+        except Exception as e:
+            print(f"Error extracting IDs from response: {e}")
+            return []
+
+        return investor_ids
+
+    def _fetch_investors_by_ids(self, investor_ids: List[int]) -> InvestorList:
+        """Fetch investors with all their relationships from the database using IDs."""
+        if not investor_ids:
+            return InvestorList(investors=[])
+
+        # Get database session
+        db_session = next(get_db())
+
+        try:
+            # Build query with all relationships loaded
+            query = (
+                db_session.query(InvestorTable)
+                .options(
+                    selectinload(InvestorTable.portfolio_companies),
+                    selectinload(InvestorTable.team_members),
+                    selectinload(InvestorTable.sectors),
+                )
+                .filter(InvestorTable.id.in_(investor_ids))
+            )
+
+            investors = query.all()
+
+            # Transform to InvestorData format
+            investor_data_list = []
+            for investor in investors:
+                investor_data = InvestorData(
+                    investor=investor,
+                    portfolio_companies=investor.portfolio_companies,
+                    team_members=investor.team_members,
+                    sectors=investor.sectors,
+                )
+                investor_data_list.append(investor_data)
+
+            return InvestorList(investors=investor_data_list)
+
+        finally:
+            db_session.close()

app/settings.py

@@ -1,11 +0,0 @@
-from pydantic_settings import BaseSettings
-
-
-class Settings(BaseSettings):
-    OPENROUTER_API_KEY: str
-
-    class Config:
-        env_file = ".env"
-
-
-settings = Settings()

requirements.txt

@@ -1,16 +1,139 @@
-# Core dependencies
-pandas>=2.0.0
-sqlalchemy>=2.0.0
-pydantic>=2.0.0
-
-# Vector database
-chromadb>=0.4.0
-
-# LLM integration
-openai>=1.0.0
-
-# Environment management
-python-dotenv>=1.0.0
-
-# Additional dependencies for data processing
-typing-extensions>=4.0.0
+aiohappyeyeballs==2.6.1
+aiohttp==3.12.15
+aiosignal==1.4.0
+annotated-types==0.7.0
+anyio==4.10.0
+attrs==25.3.0
+backoff==2.2.1
+bcrypt==4.3.0
+build==1.3.0
+cachetools==5.5.2
+certifi==2025.8.3
+charset-normalizer==3.4.3
+chromadb==1.0.20
+click==8.2.1
+coloredlogs==15.0.1
+dataclasses-json==0.6.7
+distro==1.9.0
+dnspython==2.7.0
+durationpy==0.10
+email-validator==2.3.0
+fastapi==0.116.1
+fastapi-cli==0.0.8
+fastapi-cloud-cli==0.1.5
+filelock==3.19.1
+flatbuffers==25.2.10
+frozenlist==1.7.0
+fsspec==2025.7.0
+google-auth==2.40.3
+googleapis-common-protos==1.70.0
+greenlet==3.2.4
+grpcio==1.74.0
+h11==0.16.0
+hf-xet==1.1.8
+httpcore==1.0.9
+httptools==0.6.4
+httpx==0.28.1
+httpx-sse==0.4.1
+huggingface-hub==0.34.4
+humanfriendly==10.0
+idna==3.10
+importlib-metadata==8.7.0
+importlib-resources==6.5.2
+itsdangerous==2.2.0
+jinja2==3.1.6
+jiter==0.10.0
+jsonpatch==1.33
+jsonpointer==3.0.0
+jsonschema==4.25.1
+jsonschema-specifications==2025.4.1
+kubernetes==33.1.0
+langchain==0.3.27
+langchain-community==0.3.29
+langchain-core==0.3.75
+langchain-openai==0.3.32
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