const { DataTypes } = require('sequelize');

module.exports = {
  up: async (queryInterface, Sequelize) => {
    await queryInterface.createTable('feedback', {
      id: {
        type: DataTypes.UUID,
        defaultValue: DataTypes.UUIDV4,
        primaryKey: true,
        allowNull: false
      },
      user_id: {
        type: DataTypes.UUID,
        allowNull: false,
        references: {
          model: 'users',
          key: 'id'
        },
        onUpdate: 'CASCADE',
        onDelete: 'CASCADE'
      },
      message_id: {
        type: DataTypes.UUID,
        allowNull: true,
        references: {
          model: 'messages',
          key: 'id'
        },
        onUpdate: 'CASCADE',
        onDelete: 'SET NULL'
      },
      feedback_type: {
        type: DataTypes.ENUM('positive', 'negative', 'correction', 'suggestion'),
        allowNull: false
      },
      rating: {
        type: DataTypes.INTEGER,
        allowNull: true,
        validate: {
          min: 1,
          max: 5
        }
      },
      comment: {
        type: DataTypes.TEXT,
        allowNull: true
      },
      corrected_content: {
        type: DataTypes.TEXT,
        allowNull: true
      },
      is_processed: {
        type: DataTypes.BOOLEAN,
        defaultValue: false,
        allowNull: false
      },
      processing_notes: {
        type: DataTypes.TEXT,
        allowNull: true
      },
      metadata: {
        type: DataTypes.JSONB,
        defaultValue: {},
        allowNull: false
      },
      created_at: {
        type: DataTypes.DATE,
        allowNull: false,
        defaultValue: DataTypes.NOW
      },
      updated_at: {
        type: DataTypes.DATE,
        allowNull: false,
        defaultValue: DataTypes.NOW
      }
    });

    // Create indexes
    await queryInterface.addIndex('feedback', ['user_id']);
    await queryInterface.addIndex('feedback', ['message_id']);
    await queryInterface.addIndex('feedback', ['feedback_type']);
    await queryInterface.addIndex('feedback', ['is_processed']);
    await queryInterface.addIndex('feedback', ['created_at']);
  },

  down: async (queryInterface, Sequelize) => {
    await queryInterface.dropTable('feedback');
  }
};