// src/models/index.js
// Sequelize 모델 인덱스

const { Sequelize } = require('sequelize');
const config = require('../config/database.config');

const env = process.env.NODE_ENV || 'development';
const dbConfig = config[env];

// Sequelize 인스턴스 생성
const sequelize = new Sequelize(
  dbConfig.database,
  dbConfig.username,
  dbConfig.password,
  {
    host: dbConfig.host,
    port: dbConfig.port,
    dialect: dbConfig.dialect,
    logging: dbConfig.logging,
    pool: dbConfig.pool,
    dialectOptions: dbConfig.dialectOptions,
  }
);

// 모델 임포트
const User = require('./user.model')(sequelize);
const ApiKey = require('./api-key.model')(sequelize);
const UsageLog = require('./usage-log.model')(sequelize);
const LLMProvider = require('./llm-provider.model')(sequelize);

// 관계 설정
// User - ApiKey (1:N)
User.hasMany(ApiKey, { foreignKey: 'userId', as: 'apiKeys' });
ApiKey.belongsTo(User, { foreignKey: 'userId', as: 'user' });

// User - UsageLog (1:N)
User.hasMany(UsageLog, { foreignKey: 'userId', as: 'usageLogs' });
UsageLog.belongsTo(User, { foreignKey: 'userId', as: 'user' });

// ApiKey - UsageLog (1:N)
ApiKey.hasMany(UsageLog, { foreignKey: 'apiKeyId', as: 'usageLogs' });
UsageLog.belongsTo(ApiKey, { foreignKey: 'apiKeyId', as: 'apiKey' });

// LLMProvider - UsageLog (1:N)
LLMProvider.hasMany(UsageLog, { foreignKey: 'providerId', as: 'usageLogs' });
UsageLog.belongsTo(LLMProvider, { foreignKey: 'providerId', as: 'provider' });

module.exports = {
  sequelize,
  Sequelize,
  User,
  ApiKey,
  UsageLog,
  LLMProvider,
};