Revert "fix: make draw.io built-in save button work (#293)"

This reverts commit bcc6684ecb.

.github/workflows/docker-build.yml

@@ -80,8 +80,11 @@ jobs:
 
       - name: Push to ECR (triggers App Runner auto-deploy)
         if: github.event_name != 'pull_request' && github.ref == 'refs/heads/main'
+        env:
+          REPO_LOWER: ${{ github.repository }}
         run: |
-          docker pull ghcr.io/${{ github.repository }}:latest
+          REPO_LOWER=$(echo "$REPO_LOWER" | tr '[:upper:]' '[:lower:]')
-          docker tag ghcr.io/${{ github.repository }}:latest ${{ secrets.AWS_ACCOUNT_ID }}.dkr.ecr.ap-northeast-1.amazonaws.com/next-ai-draw-io:latest
+          docker pull ghcr.io/${REPO_LOWER}:latest
+          docker tag ghcr.io/${REPO_LOWER}:latest ${{ secrets.AWS_ACCOUNT_ID }}.dkr.ecr.ap-northeast-1.amazonaws.com/next-ai-draw-io:latest
           docker push ${{ secrets.AWS_ACCOUNT_ID }}.dkr.ecr.ap-northeast-1.amazonaws.com/next-ai-draw-io:latest
 

README.md

@@ -95,7 +95,7 @@ Here are some example prompts and their generated diagrams:
 
 ## MCP Server (Preview)
 
-> **Preview Feature**: This feature is experimental and may change.
+> **Preview Feature**: This feature is experimental and may not stable.
 
 Use Next AI Draw.io with AI agents like Claude Desktop, Cursor, and VS Code via MCP (Model Context Protocol).
 

app/manifest.ts

@@ -0,0 +1,27 @@
+import type { MetadataRoute } from "next";
+
+export default function manifest(): MetadataRoute.Manifest {
+  return {
+    name: 'Next AI Draw.io',
+    short_name: 'AIDraw.io',
+    description: 'Create AWS architecture diagrams, flowcharts, and technical diagrams using AI. Free online tool integrating draw.io with AI assistance for professional diagram creation.',
+    start_url: '/',
+    display: 'standalone',
+    background_color: '#f9fafb',
+    theme_color: '#171d26',
+    icons: [
+      {
+        src: '/favicon-192x192.png',
+        sizes: '192x192',
+        type: 'image/png',
+        purpose: 'any',
+      },
+      {
+        src: '/favicon-512x512.png',
+        sizes: '512x512',
+        type: 'image/png',
+        purpose: 'any',
+      },
+    ],
+  }
+}

app/page.tsx

@@ -15,8 +15,13 @@ const drawioBaseUrl =
     process.env.NEXT_PUBLIC_DRAWIO_BASE_URL || "https://embed.diagrams.net"
 
 export default function Home() {
-    const { drawioRef, handleDiagramExport, onDrawioLoad, resetDrawioReady } =
+    const {
-        useDiagram()
+        drawioRef,
+        handleDiagramExport,
+        onDrawioLoad,
+        resetDrawioReady,
+        saveDiagramToStorage,
+    } = useDiagram()
     const [isMobile, setIsMobile] = useState(false)
     const [isChatVisible, setIsChatVisible] = useState(true)
     const [drawioUi, setDrawioUi] = useState<"min" | "sketch">("min")
@@ -35,12 +40,10 @@ export default function Home() {
 
         const savedDarkMode = localStorage.getItem("next-ai-draw-io-dark-mode")
         if (savedDarkMode !== null) {
-            // Use saved preference
             const isDark = savedDarkMode === "true"
             setDarkMode(isDark)
             document.documentElement.classList.toggle("dark", isDark)
         } else {
-            // First visit: match browser preference
             const prefersDark = window.matchMedia(
                 "(prefers-color-scheme: dark)",
             ).matches
@@ -58,12 +61,20 @@ export default function Home() {
         setIsLoaded(true)
     }, [])
 
-    const toggleDarkMode = () => {
+    const handleDarkModeChange = async () => {
+        await saveDiagramToStorage()
         const newValue = !darkMode
         setDarkMode(newValue)
         localStorage.setItem("next-ai-draw-io-dark-mode", String(newValue))
         document.documentElement.classList.toggle("dark", newValue)
-        // Reset so onDrawioLoad fires again after remount
+        resetDrawioReady()
+    }
+
+    const handleDrawioUiChange = async () => {
+        await saveDiagramToStorage()
+        const newUi = drawioUi === "min" ? "sketch" : "min"
+        localStorage.setItem("drawio-theme", newUi)
+        setDrawioUi(newUi)
         resetDrawioReady()
     }
 
@@ -182,15 +193,9 @@ export default function Home() {
                             isVisible={isChatVisible}
                             onToggleVisibility={toggleChatPanel}
                             drawioUi={drawioUi}
-                            onToggleDrawioUi={() => {
+                            onToggleDrawioUi={handleDrawioUiChange}
-                                const newUi =
-                                    drawioUi === "min" ? "sketch" : "min"
-                                localStorage.setItem("drawio-theme", newUi)
-                                setDrawioUi(newUi)
-                                resetDrawioReady()
-                            }}
                             darkMode={darkMode}
-                            onToggleDarkMode={toggleDarkMode}
+                            onToggleDarkMode={handleDarkModeChange}
                             isMobile={isMobile}
                             onCloseProtectionChange={setCloseProtection}
                         />

contexts/diagram-context.tsx

@@ -23,6 +23,7 @@ interface DiagramContextType {
         format: ExportFormat,
         sessionId?: string,
     ) => void
+    saveDiagramToStorage: () => Promise<void>
     isDrawioReady: boolean
     onDrawioLoad: () => void
     resetDrawioReady: () => void
@@ -82,6 +83,30 @@ export function DiagramProvider({ children }: { children: React.ReactNode }) {
         }
     }
 
+    // Save current diagram to localStorage (used before theme/UI changes)
+    const saveDiagramToStorage = async (): Promise<void> => {
+        if (!drawioRef.current) return
+
+        try {
+            const currentXml = await Promise.race([
+                new Promise<string>((resolve) => {
+                    resolverRef.current = resolve
+                    drawioRef.current?.exportDiagram({ format: "xmlsvg" })
+                }),
+                new Promise<string>((_, reject) =>
+                    setTimeout(() => reject(new Error("Export timeout")), 2000),
+                ),
+            ])
+
+            // Only save if diagram has meaningful content (not empty template)
+            if (currentXml && currentXml.length > 300) {
+                localStorage.setItem(STORAGE_DIAGRAM_XML_KEY, currentXml)
+            }
+        } catch (error) {
+            console.error("Failed to save diagram to storage:", error)
+        }
+    }
+
     const loadDiagram = (
         chart: string,
         skipValidation?: boolean,
@@ -280,6 +305,7 @@ export function DiagramProvider({ children }: { children: React.ReactNode }) {
                 handleDiagramExport,
                 clearDiagram,
                 saveDiagramToFile,
+                saveDiagramToStorage,
                 isDrawioReady,
                 onDrawioLoad,
                 resetDrawioReady,

docs/ai-providers.md

@@ -136,6 +136,23 @@ Optional custom URL:
 OLLAMA_BASE_URL=http://localhost:11434
 ```
 
+### Vercel AI Gateway
+
+Vercel AI Gateway provides unified access to multiple AI providers through a single API key. This simplifies authentication and allows you to switch between providers without managing multiple API keys.
+
+```bash
+AI_GATEWAY_API_KEY=your_gateway_api_key
+AI_MODEL=openai/gpt-4o
+```
+
+Model format uses `provider/model` syntax:
+
+-   `openai/gpt-4o` - OpenAI GPT-4o
+-   `anthropic/claude-sonnet-4-5` - Anthropic Claude Sonnet 4.5
+-   `google/gemini-2.0-flash` - Google Gemini 2.0 Flash
+
+Get your API key from the [Vercel AI Gateway dashboard](https://vercel.com/ai-gateway).
+
 ## Auto-Detection
 
 If you only configure **one** provider's API key, the system will automatically detect and use that provider. No need to set `AI_PROVIDER`.
@@ -143,7 +160,7 @@ If you only configure **one** provider's API key, the system will automatically
 If you configure **multiple** API keys, you must explicitly set `AI_PROVIDER`:
 
 ```bash
-AI_PROVIDER=google  # or: openai, anthropic, deepseek, siliconflow, azure, bedrock, openrouter, ollama
+AI_PROVIDER=google  # or: openai, anthropic, deepseek, siliconflow, azure, bedrock, openrouter, ollama, gateway
 ```
 
 ## Model Capability Requirements

env.example

@@ -1,6 +1,6 @@
 # AI Provider Configuration
 # AI_PROVIDER: Which provider to use
-# Options: bedrock, openai, anthropic, google, azure, ollama, openrouter, deepseek, siliconflow
+# Options: bedrock, openai, anthropic, google, azure, ollama, openrouter, deepseek, siliconflow, gateway
 # Default: bedrock
 AI_PROVIDER=bedrock
 
@@ -68,6 +68,11 @@ AI_MODEL=global.anthropic.claude-sonnet-4-5-20250929-v1:0
 # SILICONFLOW_API_KEY=sk-...
 # SILICONFLOW_BASE_URL=https://api.siliconflow.com/v1  # Optional: switch to https://api.siliconflow.cn/v1 if needed
 
+# Vercel AI Gateway Configuration
+# Get your API key from: https://vercel.com/ai-gateway
+# Model format: "provider/model" e.g., "openai/gpt-4o", "anthropic/claude-sonnet-4-5"
+# AI_GATEWAY_API_KEY=...
+
 # Langfuse Observability (Optional)
 # Enable LLM tracing and analytics - https://langfuse.com
 # LANGFUSE_PUBLIC_KEY=pk-lf-...

lib/ai-providers.ts

@@ -2,6 +2,7 @@ import { createAmazonBedrock } from "@ai-sdk/amazon-bedrock"
 import { createAnthropic } from "@ai-sdk/anthropic"
 import { azure, createAzure } from "@ai-sdk/azure"
 import { createDeepSeek, deepseek } from "@ai-sdk/deepseek"
+import { gateway } from "@ai-sdk/gateway"
 import { createGoogleGenerativeAI, google } from "@ai-sdk/google"
 import { createOpenAI, openai } from "@ai-sdk/openai"
 import { fromNodeProviderChain } from "@aws-sdk/credential-providers"
@@ -18,6 +19,7 @@ export type ProviderName =
     | "openrouter"
     | "deepseek"
     | "siliconflow"
+    | "gateway"
 
 interface ModelConfig {
     model: any
@@ -42,6 +44,7 @@ const ALLOWED_CLIENT_PROVIDERS: ProviderName[] = [
     "openrouter",
     "deepseek",
     "siliconflow",
+    "gateway",
 ]
 
 // Bedrock provider options for Anthropic beta features
@@ -333,8 +336,10 @@ function buildProviderOptions(
 
         case "deepseek":
         case "openrouter":
-        case "siliconflow": {
+        case "siliconflow":
+        case "gateway": {
             // These providers don't have reasoning configs in AI SDK yet
+            // Gateway passes through to underlying providers which handle their own configs
             break
         }
 
@@ -356,6 +361,7 @@ const PROVIDER_ENV_VARS: Record<ProviderName, string | null> = {
     openrouter: "OPENROUTER_API_KEY",
     deepseek: "DEEPSEEK_API_KEY",
     siliconflow: "SILICONFLOW_API_KEY",
+    gateway: "AI_GATEWAY_API_KEY",
 }
 
 /**
@@ -495,6 +501,7 @@ export function getAIModel(overrides?: ClientOverrides): ModelConfig {
             if (configured.length === 0) {
                 throw new Error(
                     `No AI provider configured. Please set one of the following API keys in your .env.local file:\n` +
+                        `- AI_GATEWAY_API_KEY for Vercel AI Gateway\n` +
                         `- DEEPSEEK_API_KEY for DeepSeek\n` +
                         `- OPENAI_API_KEY for OpenAI\n` +
                         `- ANTHROPIC_API_KEY for Anthropic\n` +
@@ -672,9 +679,17 @@ export function getAIModel(overrides?: ClientOverrides): ModelConfig {
             break
         }
 
+        case "gateway": {
+            // Vercel AI Gateway - unified access to multiple AI providers
+            // Model format: "provider/model" e.g., "openai/gpt-4o", "anthropic/claude-sonnet-4-5"
+            // See: https://vercel.com/ai-gateway
+            model = gateway(modelId)
+            break
+        }
+
         default:
             throw new Error(
-                `Unknown AI provider: ${provider}. Supported providers: bedrock, openai, anthropic, google, azure, ollama, openrouter, deepseek, siliconflow`,
+                `Unknown AI provider: ${provider}. Supported providers: bedrock, openai, anthropic, google, azure, ollama, openrouter, deepseek, siliconflow, gateway`,
             )
     }
 

package-lock.json

@@ -1,18 +1,19 @@
 {
     "name": "next-ai-draw-io",
-    "version": "0.4.0",
+    "version": "0.4.2",
     "lockfileVersion": 3,
     "requires": true,
     "packages": {
         "": {
             "name": "next-ai-draw-io",
-            "version": "0.4.0",
+            "version": "0.4.2",
             "license": "Apache-2.0",
             "dependencies": {
                 "@ai-sdk/amazon-bedrock": "^3.0.70",
                 "@ai-sdk/anthropic": "^2.0.44",
                 "@ai-sdk/azure": "^2.0.69",
                 "@ai-sdk/deepseek": "^1.0.30",
+                "@ai-sdk/gateway": "^2.0.21",
                 "@ai-sdk/google": "^2.0.0",
                 "@ai-sdk/openai": "^2.0.19",
                 "@ai-sdk/react": "^2.0.107",
@@ -199,13 +200,13 @@
             }
         },
         "node_modules/@ai-sdk/gateway": {
-            "version": "2.0.18",
+            "version": "2.0.21",
-            "resolved": "https://registry.npmjs.org/@ai-sdk/gateway/-/gateway-2.0.18.tgz",
+            "resolved": "https://registry.npmjs.org/@ai-sdk/gateway/-/gateway-2.0.21.tgz",
-            "integrity": "sha512-sDQcW+6ck2m0pTIHW6BPHD7S125WD3qNkx/B8sEzJp/hurocmJ5Cni0ybExg6sQMGo+fr/GWOwpHF1cmCdg5rQ==",
+            "integrity": "sha512-BwV7DU/lAm3Xn6iyyvZdWgVxgLu3SNXzl5y57gMvkW4nGhAOV5269IrJzQwGt03bb107sa6H6uJwWxc77zXoGA==",
             "license": "Apache-2.0",
             "dependencies": {
                 "@ai-sdk/provider": "2.0.0",
-                "@ai-sdk/provider-utils": "3.0.18",
+                "@ai-sdk/provider-utils": "3.0.19",
                 "@vercel/oidc": "3.0.5"
             },
             "engines": {
@@ -215,6 +216,23 @@
                 "zod": "^3.25.76 || ^4.1.8"
             }
         },
+        "node_modules/@ai-sdk/gateway/node_modules/@ai-sdk/provider-utils": {
+            "version": "3.0.19",
+            "resolved": "https://registry.npmjs.org/@ai-sdk/provider-utils/-/provider-utils-3.0.19.tgz",
+            "integrity": "sha512-W41Wc9/jbUVXVwCN/7bWa4IKe8MtxO3EyA0Hfhx6grnmiYlCvpI8neSYWFE0zScXJkgA/YK3BRybzgyiXuu6JA==",
+            "license": "Apache-2.0",
+            "dependencies": {
+                "@ai-sdk/provider": "2.0.0",
+                "@standard-schema/spec": "^1.0.0",
+                "eventsource-parser": "^3.0.6"
+            },
+            "engines": {
+                "node": ">=18"
+            },
+            "peerDependencies": {
+                "zod": "^3.25.76 || ^4.1.8"
+            }
+        },
         "node_modules/@ai-sdk/google": {
             "version": "2.0.0",
             "resolved": "https://registry.npmjs.org/@ai-sdk/google/-/google-2.0.0.tgz",
@@ -6130,6 +6148,23 @@
                 "zod": "^3.25.76 || ^4.1.8"
             }
         },
+        "node_modules/ai/node_modules/@ai-sdk/gateway": {
+            "version": "2.0.18",
+            "resolved": "https://registry.npmjs.org/@ai-sdk/gateway/-/gateway-2.0.18.tgz",
+            "integrity": "sha512-sDQcW+6ck2m0pTIHW6BPHD7S125WD3qNkx/B8sEzJp/hurocmJ5Cni0ybExg6sQMGo+fr/GWOwpHF1cmCdg5rQ==",
+            "license": "Apache-2.0",
+            "dependencies": {
+                "@ai-sdk/provider": "2.0.0",
+                "@ai-sdk/provider-utils": "3.0.18",
+                "@vercel/oidc": "3.0.5"
+            },
+            "engines": {
+                "node": ">=18"
+            },
+            "peerDependencies": {
+                "zod": "^3.25.76 || ^4.1.8"
+            }
+        },
         "node_modules/ajv": {
             "version": "6.12.6",
             "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",

package.json

@@ -17,6 +17,7 @@
         "@ai-sdk/anthropic": "^2.0.44",
         "@ai-sdk/azure": "^2.0.69",
         "@ai-sdk/deepseek": "^1.0.30",
+        "@ai-sdk/gateway": "^2.0.21",
         "@ai-sdk/google": "^2.0.0",
         "@ai-sdk/openai": "^2.0.19",
         "@ai-sdk/react": "^2.0.107",