feat: add S3 configuration and utility functions for blog image handling

.env.example

@@ -0,0 +1,3 @@
+# S3 Configuration for Blog Images
+VITE_S3_ENDPOINT_BLOG=https://s3.example.com
+VITE_S3_BUCKET_BLOG=my-blog-bucket

.github/workflows/ci.yml

@@ -19,6 +19,9 @@ env:
   CONTAINER_REGISTRY_PASSWORD: ${{ secrets.CONTAINER_REGISTRY_PASSWORD }}
   CONTAINER_IMAGE_NAME: ${{ secrets.CONTAINER_IMAGE_NAME }}
   CONTAINER_IMAGE_TAG: ${{ secrets.CONTAINER_IMAGE_TAG }}
+  # S3 Configuration for Blog
+  VITE_S3_ENDPOINT_BLOG: ${{ secrets.VITE_S3_ENDPOINT_BLOG }}
+  VITE_S3_BUCKET_BLOG: ${{ secrets.VITE_S3_BUCKET_BLOG }}
 
 jobs:
   build-and-push:

.gitignore

@@ -12,6 +12,11 @@ dist
 dist-ssr
 *.local
 
+# Environment variables
+.env
+.env.local
+.env.*.local
+
 # Editor directories and files
 .vscode/*
 !.vscode/extensions.json

Dockerfile

@@ -13,6 +13,14 @@ RUN npm ci
 # Copy project files
 COPY . .
 
+# Build arguments for environment variables
+ARG VITE_S3_ENDPOINT_BLOG
+ARG VITE_S3_BUCKET_BLOG
+
+# Set environment variables for Vite build
+ENV VITE_S3_ENDPOINT_BLOG=${VITE_S3_ENDPOINT_BLOG}
+ENV VITE_S3_BUCKET_BLOG=${VITE_S3_BUCKET_BLOG}
+
 # Build the application
 RUN npm run build
 

script/ci.sh

@@ -13,6 +13,10 @@ CONTAINER_REGISTRY_PASSWORD="${CONTAINER_REGISTRY_PASSWORD:-password}"
 CONTAINER_IMAGE_NAME="${CONTAINER_IMAGE_NAME:-image-name}"
 CONTAINER_IMAGE_TAG="${CONTAINER_IMAGE_TAG:-latest}"
 
+# Application Environment Variables
+VITE_S3_ENDPOINT_BLOG="${VITE_S3_ENDPOINT_BLOG:-}"
+VITE_S3_BUCKET_BLOG="${VITE_S3_BUCKET_BLOG:-}"
+
 # =============================================================================
 # Functions
 # =============================================================================
@@ -33,6 +37,8 @@ print_help() {
     echo "  CONTAINER_REGISTRY_PASSWORD  Registry password (default: password)"
     echo "  CONTAINER_IMAGE_NAME         Image name (default: image-name)"
     echo "  CONTAINER_IMAGE_TAG          Image tag (default: latest)"
+    echo "  VITE_S3_ENDPOINT_BLOG        S3 endpoint for blog images"
+    echo "  VITE_S3_BUCKET_BLOG          S3 bucket for blog images"
     echo ""
     echo "Examples:"
     echo "  $0 build"
@@ -51,8 +57,20 @@ build_image() {
     echo "Image: ${FULL_IMAGE_NAME}"
     echo ""
     
+    # Prepare build args for S3 configuration
+    BUILD_ARGS=""
+    if [ -n "${VITE_S3_ENDPOINT_BLOG}" ]; then
+        BUILD_ARGS="${BUILD_ARGS} --build-arg VITE_S3_ENDPOINT_BLOG=${VITE_S3_ENDPOINT_BLOG}"
+        echo "S3 Endpoint (Blog): ${VITE_S3_ENDPOINT_BLOG}"
+    fi
+    if [ -n "${VITE_S3_BUCKET_BLOG}" ]; then
+        BUILD_ARGS="${BUILD_ARGS} --build-arg VITE_S3_BUCKET_BLOG=${VITE_S3_BUCKET_BLOG}"
+        echo "S3 Bucket (Blog): ${VITE_S3_BUCKET_BLOG}"
+    fi
+    echo ""
+    
     # Build the Docker image using Dockerfile in current directory
-    docker build -t "${FULL_IMAGE_NAME}" .
+    docker build ${BUILD_ARGS} -t "${FULL_IMAGE_NAME}" .
     
     # Check if build was successful
     if [ $? -eq 0 ]; then

src/blog/api.ts

@@ -3,9 +3,9 @@
  */
 
 import { apiRequest } from '../utils/api';
+import { getS3Url } from './s3Config';
 import type {
   UploadPresignedURLResponse,
-  DownloadPresignedURLResponse,
   CreatePostResponse,
 } from './types';
 
@@ -27,22 +27,6 @@ export async function getUploadPresignedURL(fileName: string): Promise<UploadPre
   return response.json();
 }
 
-/**
- * Get presigned URL for file download
- */
-export async function getDownloadPresignedURL(fileKey: string): Promise<DownloadPresignedURLResponse> {
-  const response = await apiRequest(`${API_BASE}/file/download`, {
-    method: 'POST',
-    body: JSON.stringify({ fileKey }),
-  });
-
-  if (!response.ok) {
-    throw new Error(`Failed to get download URL: ${response.statusText}`);
-  }
-
-  return response.json();
-}
-
 /**
  * Upload file to S3 using presigned URL
  */
@@ -97,10 +81,10 @@ export async function uploadImage(
   // Step 2: Upload file to S3
   await uploadFileToS3(uploadUrl, file, onProgress);
 
-  // Step 3: Get download URL
+  // Step 3: Generate public S3 URL from fileKey
-  const { url: downloadUrl } = await getDownloadPresignedURL(fileKey);
+  const url = getS3Url(fileKey);
 
-  return { fileKey, url: downloadUrl };
+  return { fileKey, url };
 }
 
 /**

src/blog/nodes/ImageComponent.tsx

@@ -18,10 +18,12 @@ import {
   useEffect,
   useRef,
   useState,
+  useMemo,
 } from 'react';
 
 import ImageResizer from './ImageResizer';
 import { $isImageNode } from './ImageNode';
+import { getS3Url } from '../s3Config';
 
 type ImageStatus =
   | { error: true }
@@ -143,6 +145,14 @@ export default function ImageComponent({
   const [editor] = useLexicalComposerContext();
   const [isLoadError, setIsLoadError] = useState<boolean>(false);
 
+  // Generate actual image URL from fileKey or use src
+  const imageUrl = useMemo(() => {
+    if (_fileKey) {
+      return getS3Url(_fileKey);
+    }
+    return src; // Fallback to src for data URLs during upload
+  }, [_fileKey, src]);
+
   const $onEscape = useCallback(
     () => {
       if (isSelected) {
@@ -259,7 +269,7 @@ export default function ImageComponent({
         ) : (
           <LazyImage
             className={isFocused ? 'focused' : null}
-            src={src}
+            src={imageUrl}
             altText={altText}
             imageRef={imageRef}
             width={width}

src/blog/nodes/ImageNode.tsx

@@ -47,7 +47,6 @@ export type SerializedImageNode = Spread<
     altText: string;
     height?: number;
     maxWidth: number;
-    src: string;
     width?: number;
     fileKey?: string;
     uploadProgress?: number;
@@ -85,7 +84,11 @@ export class ImageNode extends DecoratorNode<JSX.Element> {
   }
 
   static importJSON(serializedNode: SerializedImageNode): ImageNode {
-    const { altText, height, width, maxWidth, src, fileKey, uploadProgress, uploadError } = serializedNode;
+    const { altText, height, width, maxWidth, fileKey, uploadProgress, uploadError } = serializedNode;
+    
+    // Generate src from fileKey if available, otherwise use empty string
+    const src = fileKey ? '' : ''; // src will be generated from fileKey when rendering
+    
     return $createImageNode({
       altText,
       height,
@@ -150,7 +153,7 @@ export class ImageNode extends DecoratorNode<JSX.Element> {
       altText: this.getAltText(),
       height: this.__height === 'inherit' ? 0 : this.__height,
       maxWidth: this.__maxWidth,
-      src: this.getSrc(),
+      // Don't export src - it's mutable and will be generated from fileKey
       type: 'image',
       version: 1,
       width: this.__width === 'inherit' ? 0 : this.__width,

src/blog/s3Config.ts

@@ -0,0 +1,39 @@
+/**
+ * S3 configuration utility for Blog
+ */
+
+// S3 endpoint and bucket from environment variables
+export const S3_ENDPOINT_BLOG = import.meta.env.VITE_S3_ENDPOINT_BLOG || 'https://s3.amazonaws.com';
+export const S3_BUCKET_BLOG = import.meta.env.VITE_S3_BUCKET_BLOG || 'default-bucket';
+
+/**
+ * Generate S3 URL from file key
+ * @param fileKey - The S3 file key (e.g., "uploads/image-123.png")
+ * @returns Full S3 URL to access the file
+ */
+export function getS3Url(fileKey: string): string {
+  // Remove leading slash if present
+  const key = fileKey.startsWith('/') ? fileKey.slice(1) : fileKey;
+  
+  // Construct URL: https://s3.example.com/bucket-name/uploads/image-123.png
+  return `${S3_ENDPOINT_BLOG}/${S3_BUCKET_BLOG}/${key}`;
+}
+
+/**
+ * Extract file key from S3 URL
+ * @param url - Full S3 URL
+ * @returns File key or null if not a valid S3 URL
+ */
+export function extractFileKeyFromUrl(url: string): string | null {
+  try {
+    const urlObj = new URL(url);
+    const pathParts = urlObj.pathname.split('/');
+    
+    // Remove empty parts and bucket name
+    const filteredParts = pathParts.filter(p => p && p !== S3_BUCKET_BLOG);
+    
+    return filteredParts.join('/') || null;
+  } catch {
+    return null;
+  }
+}

src/blog/types.ts

@@ -8,11 +8,6 @@ export interface UploadPresignedURLResponse {
   expireAt: number;
 }
 
-export interface DownloadPresignedURLResponse {
-  url: string;
-  expireAt: number;
-}
-
 export interface CreatePostResponse {
   postId: string;
 }