import { Module } from '@nestjs/common';
import { ReleaseNotesController } from './release-notes.controller';
import { TypeOrmModule } from '@nestjs/typeorm';
import { JwtService } from '@nestjs/jwt';
import { ReleaseNotesService } from './release-notes.service';
import { CacheModule } from '@nestjs/cache-manager';
import { ReleaseNotesEntity } from 'src/entities/ReleaseNotes.entity';

/**
 * Release Notes Module
 *
 * This module encapsulates all functionality related to managing release notes
 * within the application. Release notes document version changes, updates,
 * bug fixes, and new features for different versions of the application.
 *
 * The module follows a standard NestJS modular structure but has some issues:
 * - JwtService is provided but likely not used (no authentication in controller)
 * - Missing RedisService if cache needs persistence
 * - No exports for potential reuse
 *
 * @Module - Decorator that defines this as a NestJS module
 *
 * @example
 * // Import in AppModule or parent module:
 * imports: [ReleaseNotesModule, ...]
 */
@Module({
  /**
   * Controller that handles HTTP requests for release notes.
   * ReleaseNotesController provides endpoints for searching, creating, and updating
   * release notes (though update has a hardcoded ID bug).
   */
  controllers: [ReleaseNotesController],

  /**
   * Providers (services, utilities) for this module.
   *
   * 1. ReleaseNotesService - Main business logic service
   * 2. JwtService - JSON Web Token service (provided but likely unused)
   *
   * @note JwtService is provided but the controller has no @UseGuards decorator.
   * Either add authentication or remove JwtService from providers.
   */
  providers: [
    ReleaseNotesService, // Main business logic
    JwtService, // Provided but likely unused (no auth in controller)
  ],

  /**
   * Modules and entities that this module depends on.
   *
   * 1. CacheModule - For in-memory caching of release notes
   * 2. TypeOrmModule.forFeature() - Registers entity for dependency injection
   *
   * @note CacheModule uses default memory store. Consider Redis for persistence
   * if release notes are accessed frequently and changes are infrequent.
   */
  imports: [
    // Cache module for temporary data storage
    // Release notes are good candidates for caching (rarely change, frequently read)
    CacheModule.register(),

    // Register the entity with TypeORM for this module
    // Makes ReleaseNotesEntity available for injection in services
    TypeOrmModule.forFeature([ReleaseNotesEntity]),
  ],

  /**
   * Optional: Export providers to make them available to other modules.
   * Currently not exporting anything, which keeps this module self-contained.
   *
   * Consider exporting if:
   * 1. Other modules need to use ReleaseNotesService
   * 2. Other modules need to access ReleaseNotesEntity repositories
   */
  exports: [
    // Could export: ReleaseNotesService, TypeOrmModule
  ],
})
export class ReleaseNotesModule {}
