feat: update a comment

src/modules/comments/comments.controller.ts

@@ -1,8 +1,9 @@
-import { Controller, Body, Post, Request, Get, Param } from '@nestjs/common';
+import { Controller, Body, Post, Request, Get, Param, Patch } from '@nestjs/common';
 import { CommentsService } from './comments.service';
 import { CreateCommentDto } from './dtos/create-comment.dto';
 import { CommentResponseDto } from './dtos/comment-response.dto';
 import { ApiBearerAuth, ApiOperation, ApiResponse, ApiTags } from '@nestjs/swagger';
+import { UpdateCommentDto } from './dtos/update-comment.dto';
 
 @ApiBearerAuth()
 @ApiTags('Comments')
@@ -19,6 +20,19 @@ export class CommentsController {
     return await this.commentsService.addComment(createCommentDto, userId);
   }
 
+  @ApiOperation({ summary: 'Update a comment' })
+  @ApiResponse({ status: 200, description: 'The comment has been successfully updated.' })
+  @ApiResponse({ status: 404, description: 'User or Comment not found.' })
+  @ApiResponse({ status: 500, description: 'Internal server error.' })
+  @Patch('update/:id')
+  async updateComment(
+    @Param('id') id: string,
+    @Body() updateCommentDto: UpdateCommentDto,
+    @Request() req
+  ): Promise<CommentResponseDto> {
+    const { userId } = req.user;
+    return await this.commentsService.updateComment(id, userId, updateCommentDto);
+
   @ApiOperation({ summary: 'Get a comment' })
   @ApiResponse({ status: 200, description: 'The comment has been retrieved successfully.' })
   @Get(':id')

src/modules/comments/comments.service.ts

@@ -6,6 +6,7 @@ import { CreateCommentDto } from './dtos/create-comment.dto';
 import { User } from '../user/entities/user.entity';
 import { CommentResponseDto } from './dtos/comment-response.dto';
 import { CustomHttpException } from '../../helpers/custom-http-filter';
+import { UpdateCommentDto } from './dtos/update-comment.dto';
 @Injectable()
 export class CommentsService {
   constructor(
@@ -43,6 +44,30 @@ export class CommentsService {
     };
   }
 
+  async updateComment(
+    commentId: string,
+    userId: string,
+    updateCommentDto: UpdateCommentDto
+  ): Promise<CommentResponseDto> {
+    const comment = await this.commentRepository.findOneBy({ id: commentId });
+    if (!comment) {
+      throw new CustomHttpException('Comment not found', 404);
+    }
+
+    const user = await this.userRepository.findOne({ where: { id: userId } });
+    if (!user) {
+      throw new CustomHttpException('User not found', 404);
+    }
+
+    await this.commentRepository.update(commentId, updateCommentDto);
+    const updatedComment = await this.commentRepository.findOneBy({ id: commentId });
+
+    return {
+      message: 'Comment updated successfully!',
+      savedComment: updatedComment,
+      commentedBy: user.first_name + ' ' + user.last_name,
+    }
+
   async getAComment(commentId: string) {
     const comment = await this.commentRepository.findOneBy({ id: commentId });
     if (!comment) {

src/modules/comments/dtos/update-comment.dto.ts

@@ -0,0 +1,9 @@
+import { IsString, IsNotEmpty } from 'class-validator';
+import { ApiProperty } from '@nestjs/swagger';
+
+export class UpdateCommentDto {
+  @ApiProperty({ description: 'Comment content' })
+  @IsString()
+  @IsNotEmpty()
+  comment: string;
+}