import { Injectable } from '@nestjs/common';
import { ConfigService } from '@nestjs/config';
import { TypeOrmModuleOptions, TypeOrmOptionsFactory } from '@nestjs/typeorm';
import { SnakeNamingStrategy } from "typeorm-naming-strategies"



@Injectable()
export class DatabaseOptions implements TypeOrmOptionsFactory {
  constructor(private config: ConfigService) { }

  createTypeOrmOptions(): TypeOrmModuleOptions | Promise<TypeOrmModuleOptions> {
    return {
      type: "postgres",
      host: this.config.getOrThrow('DATABASE_HOST'),
      port: parseInt(this.config.getOrThrow('DATABASE_PORT'), 10),
      username: this.config.getOrThrow('DATABASE_USERNAME'),
      password: this.config.getOrThrow('DATABASE_PASSWORD'),
      database: this.config.getOrThrow('DATABASE_NAME'),

      entities: [__dirname + '/../**/*.entity.js'],
      logging: true,
      synchronize: false,
      //migrations: ['dist/migrations/*.ts'],
      // cli: {
      //   migrationsDir: process.env.TYPEORM_MIGRATIONS_DIR,
      // },
      namingStrategy: new SnakeNamingStrategy(),
    };
  }
}