import {
  Body,
  Controller,
  Post,
  Put,
  ValidationPipe,
  Param,
  ParseIntPipe,
} from '@nestjs/common';
import {
  ApiTags,
  ApiOperation,
  ApiResponse,
  ApiParam,
  ApiBody,
} from '@nestjs/swagger';
import { ReleaseNotesService } from './release-notes.service';
import { SearchReleaseNotesDto } from './dto/search-dto';
import { Response } from 'src/config/pagination/paginationDto';
import { ReleaseNotesEntity } from 'src/entities/ReleaseNotes.entity';
import { CreateReleaseNoteDto } from './dto/create-note-dto';

/**
 * Release Notes Controller
 *
 * This controller manages CRUD operations for release notes within the application.
 * Release notes are used to document version changes, updates, bug fixes, and new features
 * for different versions of the application or its modules.
 *
 * Release notes typically include:
 * - Version information
 * - Release date
 * - Change categories (New Features, Bug Fixes, Improvements, etc.)
 * - Detailed descriptions of changes
 * - Known issues or limitations
 *
 * @ApiTags('Release Notes') - Groups endpoints under 'Release Notes' in Swagger
 * @Controller('') - No path prefix, consider adding 'release-notes'
 *
 * @note Missing authentication guards - release notes might be public or require admin access
 */
@ApiTags('Release Notes')
@Controller('') // Consider adding path prefix: @Controller('release-notes')
export class ReleaseNotesController {
  constructor(private readonly releaseNoteService: ReleaseNotesService) {}

  /**
   * Search and retrieve release notes with filtering and pagination.
   *
   * This endpoint allows searching through release notes with various filters
   * such as version numbers, release dates, change types, etc.
   *
   * @param searchDto - Search criteria, filters, and pagination parameters
   * @returns Paginated response of release notes
   *
   * @note Missing ValidationPipe on searchDto parameter
   * @note Consider adding authentication if release notes contain sensitive information
   */
  @Post('all')
  @ApiOperation({
    summary: 'Search release notes',
    description: 'Search and filter release notes with pagination support',
  })
  @ApiResponse({
    status: 200,
    description: 'Release notes retrieved successfully',
  })
  @ApiResponse({ status: 400, description: 'Invalid search parameters' })
  findAll(
    @Body() searchDto: SearchReleaseNotesDto, // Missing ValidationPipe
  ): Promise<Response<ReleaseNotesEntity>> {
    return this.releaseNoteService.getAllReleaseNotes(searchDto);
  }

  /**
   * Create a new release note.
   *
   * This endpoint creates a new release note entry, typically used by
   * administrators or developers when publishing a new version.
   *
   * @param createDto - Release note data including version, changes, etc.
   * @returns Newly created release note entity
   *
   * @note Missing user authentication - should likely require admin privileges
   * @note Should probably include user ID from session for audit trail
   */
  @Post()
  @ApiOperation({
    summary: 'Create release note',
    description: 'Create a new release note entry',
  })
  @ApiResponse({
    status: 201,
    description: 'Release note created successfully',
  })
  @ApiResponse({ status: 400, description: 'Invalid release note data' })
  @ApiBody({ type: CreateReleaseNoteDto })
  create(
    @Body(new ValidationPipe()) createDto: CreateReleaseNoteDto,
  ): Promise<ReleaseNotesEntity> {
    return this.releaseNoteService.create(createDto);
  }

  /**
   * Update an existing release note.
   *
   * This endpoint updates a release note, but currently hardcodes ID 24.
   * This is a bug - should accept ID as a parameter.
   *
   * @param updateDto - Updated release note data
   * @returns Update result
   *
   * @bug Hardcoded ID 24 - should be a parameter
   * @note Missing user authentication and proper ID parameter
   * @note Using CreateReleaseNoteDto for update - consider separate UpdateDto
   */
  @Put()
  @ApiOperation({
    summary: 'Update release note',
    description: 'Update an existing release note',
  })
  @ApiResponse({
    status: 200,
    description: 'Release note updated successfully',
  })
  @ApiResponse({ status: 404, description: 'Release note not found' })
  @ApiBody({ type: CreateReleaseNoteDto })
  update(@Body(new ValidationPipe()) updateDto: CreateReleaseNoteDto) {
    // BUG: Hardcoded ID 24 - should be @Param('id', ParseIntPipe) id: number
    return this.releaseNoteService.update(24, updateDto);
  }
}
