From e4c9e98d7d78142eb0271041ad9a335ef7beb7a4 Mon Sep 17 00:00:00 2001
From: Kimcheolhui <cjfgml0306@naver.com>
Date: Mon, 9 Dec 2024 14:07:51 +0900
Subject: [PATCH 1/3] chore: add checking logic when get all comments by post
 id

---
 src/comment/comment.service.ts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/comment/comment.service.ts b/src/comment/comment.service.ts
index dd6550d..27e095b 100644
--- a/src/comment/comment.service.ts
+++ b/src/comment/comment.service.ts
@@ -50,6 +50,12 @@ export class CommentService {
   }
 
   async getPostComments(postId: number): Promise<CommentResponseDto[]> {
+    const post = this.postService.getPostById(postId);
+
+    if (!post) {
+      throw new NotFoundException('Post not found');
+    }
+
     return this.commentRepository.getPostComments(postId);
   }
 

From bb8f73d53097320bc68cb23b0769ee7f72b3c8ed Mon Sep 17 00:00:00 2001
From: Kimcheolhui <cjfgml0306@naver.com>
Date: Mon, 9 Dec 2024 18:29:48 +0900
Subject: [PATCH 2/3] chore: install form-data package for ai feature

---
 package-lock.json | 2 ++
 package.json      | 1 +
 2 files changed, 3 insertions(+)

diff --git a/package-lock.json b/package-lock.json
index 8fc9803..2c42507 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -26,6 +26,7 @@
         "class-validator": "^0.14.1",
         "cookie-parser": "^1.4.7",
         "express-basic-auth": "^1.2.1",
+        "form-data": "^4.0.1",
         "passport": "^0.7.0",
         "passport-http-bearer": "^1.0.1",
         "passport-oauth2": "^1.8.0",
@@ -6741,6 +6742,7 @@
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/form-data/-/form-data-4.0.1.tgz",
       "integrity": "sha512-tzN8e4TX8+kkxGPK8D5u0FNmjPUjw3lwC9lSLxxoB/+GtsJG91CO8bSWy73APlgAZzZbXEYZJuxjkHH2w+Ezhw==",
+      "license": "MIT",
       "dependencies": {
         "asynckit": "^0.4.0",
         "combined-stream": "^1.0.8",
diff --git a/package.json b/package.json
index 2da6896..27fad56 100644
--- a/package.json
+++ b/package.json
@@ -37,6 +37,7 @@
     "class-validator": "^0.14.1",
     "cookie-parser": "^1.4.7",
     "express-basic-auth": "^1.2.1",
+    "form-data": "^4.0.1",
     "passport": "^0.7.0",
     "passport-http-bearer": "^1.0.1",
     "passport-oauth2": "^1.8.0",

From bbddd43354848c485b505246613ba9a4370a6800 Mon Sep 17 00:00:00 2001
From: Kimcheolhui <cjfgml0306@naver.com>
Date: Mon, 9 Dec 2024 18:30:46 +0900
Subject: [PATCH 3/3] feat: apply image masking feature

---
 src/image/image.service.ts | 47 ++++++++++++++++++++++++++++++++++++--
 1 file changed, 45 insertions(+), 2 deletions(-)

diff --git a/src/image/image.service.ts b/src/image/image.service.ts
index 51a0a88..6a27569 100644
--- a/src/image/image.service.ts
+++ b/src/image/image.service.ts
@@ -13,7 +13,8 @@ import {
   NotFoundException,
 } from '@nestjs/common';
 import { ConfigService } from '@nestjs/config';
-
+import axios from 'axios';
+import FormData from 'form-data';
 import sharp from 'sharp';
 
 @Injectable()
@@ -53,7 +54,13 @@ export class ImageService {
   private async uploadImage(file: Express.Multer.File): Promise<string> {
     const key = `${Date.now()}-${Math.random().toString(36).substring(2)}${file.originalname}`;
 
-    const webpFile = await this.convertToWebp(file);
+    // OCR Masking
+    const maskedImageBuffer = await this.maskingImageWithFlask(file);
+
+    const webpFile = await this.convertToWebp({
+      ...file,
+      buffer: maskedImageBuffer,
+    });
 
     const command = new PutObjectCommand({
       Bucket: this.bucketName,
@@ -172,4 +179,40 @@ export class ImageService {
       throw new InternalServerErrorException('Failed to generate signed URLs');
     }
   }
+
+  /**
+   * AI feature 서버에 이미지를 보내서 OCR 마스킹 처리
+   * @param file Express.Multer.File
+   * @returns Buffer (마스킹된 이미지 데이터)
+   */
+  private async maskingImageWithFlask(
+    file: Express.Multer.File,
+  ): Promise<Buffer> {
+    const flaskApiUrl = this.configService.get<string>('FLASK_API_URL'); // Flask API URL
+    const flaskApiKey = this.configService.get<string>('FLASK_API_KEY'); // Flask API Key
+
+    try {
+      const formData = new FormData();
+      formData.append('image', file.buffer, file.originalname);
+
+      const response = await axios.post(
+        `${flaskApiUrl}/process_image`,
+        formData,
+        {
+          headers: {
+            'X-API-KEY': flaskApiKey,
+            ...formData.getHeaders(),
+          },
+          responseType: 'arraybuffer', // 이미지 데이터를 Buffer로 받기
+        },
+      );
+
+      return Buffer.from(response.data); // 마스킹된 이미지 데이터 반환
+    } catch (error) {
+      console.error('Error calling Flask API:', error.message);
+      throw new InternalServerErrorException(
+        'Failed to process image with Flask API',
+      );
+    }
+  }
 }