module4_backend_project/seed.js

const redis = require("redis");
require('dotenv').config();

// Configuration for seeding
const config = {
  numEvents: parseInt(process.argv[2]) || 5, // Number of events to create
  ticketsPerEvent: parseInt(process.argv[3]) || 10000, // Tickets per event
  redisUrl: process.env.REDIS_URL || "redis://localhost:6379"
};

const client = redis.createClient({ url: config.redisUrl });

async function seedTickets() {
  try {
    await client.connect();
    console.log(`Seeding ${config.numEvents} events with ${config.ticketsPerEvent} tickets each...`);
    
    // Clear existing event data
    const existingKeys = await client.keys('event:*');
    if (existingKeys.length > 0) {
      await client.del(existingKeys);
      console.log(`Cleared ${existingKeys.length} existing event keys.`);
    }
    
    // Seed multiple events
    for (let eventId = 1; eventId <= config.numEvents; eventId++) {
      const eventKey = `event:${eventId}:tickets`;
      const metaKey = `event:${eventId}:meta`;
      
      // Generate tickets for this event
      const tickets = [];
      for (let i = 1; i <= config.ticketsPerEvent; i++) {
        tickets.push(`ticket-${eventId}-${i}`);
      }
      
      // Store tickets in Redis list
      await client.rPush(eventKey, tickets);
      
      // Store event metadata
      await client.hSet(metaKey, {
        eventId: eventId,
        totalTickets: config.ticketsPerEvent,
        soldTickets: 0,
        createdAt: new Date().toISOString(),
        name: `Event ${eventId}`,
        description: `Sample event ${eventId} for load testing`
      });
      
      console.log(`✓ Event ${eventId}: ${config.ticketsPerEvent} tickets seeded`);
    }
    
    // Store global stats
    await client.hSet('global:stats', {
      totalEvents: config.numEvents,
      totalTickets: config.numEvents * config.ticketsPerEvent,
      totalSold: 0,
      lastSeeded: new Date().toISOString()
    });
    
    console.log(`\n🎉 Successfully seeded ${config.numEvents} events with ${config.numEvents * config.ticketsPerEvent} total tickets!`);
    process.exit(0);
  } catch (err) {
    console.error("Error during seed:", err);
    process.exit(1);
  }
}

seedTickets();