added dynamic configuration of Port in Desktop app

desktop/RUNTIME_CONFIG.md

@@ -0,0 +1,64 @@
+# Desktop Runtime Configuration
+
+The BaMoRT desktop app now uses **runtime configuration** for the API port, meaning you can change the port in the `.env` file without rebuilding the app.
+
+## How It Works
+
+### Backend (Go)
+- **[desktop/main.go](desktop/main.go)**: The `App.GetAPIBaseURL()` method reads the configured port from `config.Cfg` and returns the full API URL
+- This method is bound to the frontend via Wails, making it callable from JavaScript
+
+### Frontend (Vue/JS)
+- **[frontend/src/utils/config.js](frontend/src/utils/config.js)**: Detects if running in Wails and calls the Go backend to get the API URL at runtime
+- **[frontend/src/utils/api.js](frontend/src/utils/api.js)**: Uses the dynamic config instead of a hardcoded VITE_API_URL
+- The API URL is cached after first retrieval for performance
+
+### Build Process
+- **[frontend/package.json](frontend/package.json)**: The `build:desktop` script no longer hardcodes `VITE_API_URL`
+- The frontend bundle is now port-agnostic
+
+## Usage
+
+### Change the API Port
+
+1. Edit `desktop/.env`:
+   ```env
+   API_PORT=8185  # Change to any port you want
+   ```
+
+2. Run the app - no rebuild needed!
+   ```bash
+   ./desktop/build/bin/bamort
+   ```
+
+The frontend will automatically connect to the configured port.
+
+### Environment Detection
+
+The config system automatically detects the environment:
+
+- **Desktop (Wails)**: Calls `window.go.main.App.GetAPIBaseURL()` to get the URL from Go backend
+- **Web (Development)**: Uses `import.meta.env.VITE_API_URL` from Vite
+- **Web (Production)**: Defaults to `https://bamort-api.trokan.de`
+
+## Fallback Behavior
+
+If the desktop app can't reach the Go backend (shouldn't happen), it falls back to `http://localhost:8185`.
+
+## Benefits
+
+✅ Change API port without rebuilding  
+✅ Faster iteration during development  
+✅ Same binary works with different configurations  
+✅ Cleaner separation of config from code  
+
+## Technical Details
+
+**Request Flow:**
+1. Frontend makes API request
+2. Axios interceptor checks if `baseURL` is set
+3. If not set, calls `getAPIBaseURL()` from config.js
+4. Config.js detects Wails environment via `window.go`
+5. Calls Go backend's `GetAPIBaseURL()` method
+6. Caches the result for subsequent requests
+7. Request proceeds with correct baseURL

desktop/main.go

@@ -1,6 +1,6 @@
 // BaMoRT Desktop application entry point.
 // Uses Wails v2 to wrap the existing Gin HTTP server in a native desktop window.
-// The backend runs on localhost:8180 (SQLite); the WebView loads the bundled frontend.
+// The backend runs on localhost:8185 (SQLite); the WebView loads the bundled frontend.
 package main
 
 import (
@@ -56,8 +56,15 @@ func (a *App) startup(ctx context.Context) {
 	startGinServer()
 }
 
+// GetAPIBaseURL returns the HTTP server address for the frontend to connect to.
+// This allows the API port to be configured at runtime via .env without rebuilding.
+func (a *App) GetAPIBaseURL() string {
+	// GetServerAddress returns ":port", so we need to add localhost
+	return "http://localhost" + config.Cfg.GetServerAddress()
+}
+
 // startGinServer initialises the database, runs migrations, and starts the
-// Gin HTTP server on the configured port (default 8180) in a goroutine.
+// Gin HTTP server on the configured port (default 8185) in a goroutine.
 func startGinServer() {
 	cfg := config.Cfg
 
@@ -131,7 +138,7 @@ func main() {
 		_ = os.Setenv("ENVIRONMENT", "desktop")
 	}
 	if os.Getenv("API_PORT") == "" {
-		_ = os.Setenv("API_PORT", "8180")
+		_ = os.Setenv("API_PORT", "8185")
 	}
 	if os.Getenv("TEMPLATES_DIR") == "" {
 		_ = os.Setenv("TEMPLATES_DIR", "./templates")
@@ -158,6 +165,9 @@ func main() {
 		MinWidth:  1024,
 		MinHeight: 768,
 		OnStartup: app.startup,
+		Bind: []interface{}{
+			app,
+		},
 		AssetServer: &assetserver.Options{
 			Assets: frontendFS,
 		},

frontend/package.json

@@ -7,7 +7,7 @@
   "scripts": {
     "dev": "vite",
     "build": "vite build",
-    "build:desktop": "DESKTOP_BUILD=1 VITE_API_URL=http://localhost:8180 vite build",
+    "build:desktop": "DESKTOP_BUILD=1 vite build",
     "preview": "vite preview"
   },
   "dependencies": {

frontend/package.json.md5

@@ -1 +1 @@
-a98925179cb067ef9c9e5871faa6f8c7
+705a38c2f133892600ec967917c4d556

frontend/src/utils/api.js

@@ -1,12 +1,33 @@
 import axios from 'axios'
+import { getAPIBaseURL } from './config'
 
-const API = axios.create({
+// Create API instance without baseURL - will be set dynamically
-  baseURL: import.meta.env.VITE_API_URL || 'https://bamort-api.trokan.de', // Use env variable with fallback
+const API = axios.create({})
-})
 
-// Request interceptor to add auth token
+let baseURLPromise = null
+let baseURLResolved = false
+
+// Get base URL (cached after first call)
+async function ensureBaseURL() {
+  if (baseURLResolved) {
+    return
+  }
+  
+  if (!baseURLPromise) {
+    baseURLPromise = getAPIBaseURL()
+  }
+  
+  const baseURL = await baseURLPromise
+  API.defaults.baseURL = baseURL
+  baseURLResolved = true
+}
+
+// Request interceptor to add auth token and ensure baseURL is set
 API.interceptors.request.use(
-  (config) => {
+  async (config) => {
+    // Ensure baseURL is set before request
+    await ensureBaseURL()
+    
     const token = localStorage.getItem('token')
     if (token) {
       config.headers.Authorization = `Bearer ${token}`

frontend/src/utils/config.js

@@ -0,0 +1,82 @@
+/**
+ * Runtime configuration for BaMoRT frontend
+ * 
+ * For desktop builds (Wails), reads the API base URL from the Go backend
+ * to allow runtime configuration via .env without rebuilding.
+ * 
+ * For web builds, uses VITE_API_URL environment variable.
+ */
+
+let cachedAPIBaseURL = null
+
+/**
+ * Check if we're running in a Wails desktop app
+ */
+function isWailsApp() {
+  return typeof window !== 'undefined' && 
+         window['go'] !== undefined &&
+         window['go']['main'] !== undefined &&
+         window['go']['main']['App'] !== undefined
+}
+
+/**
+ * Wait for Wails to initialize (max 3 seconds)
+ */
+async function waitForWails(maxAttempts = 30) {
+  for (let i = 0; i < maxAttempts; i++) {
+    if (isWailsApp()) {
+      return true
+    }
+    await new Promise(resolve => setTimeout(resolve, 100))
+  }
+  return false
+}
+
+/**
+ * Get the API base URL dynamically
+ * - In Wails desktop app: calls Go backend to get configured URL
+ * - In web app: uses VITE_API_URL or defaults to production API
+ */
+export async function getAPIBaseURL() {
+  // Return cached value if available
+  if (cachedAPIBaseURL) {
+    return cachedAPIBaseURL
+  }
+
+  // Check if this looks like a desktop environment
+  const isDesktop = typeof window !== 'undefined' && 
+                   (window.location.protocol === 'wails:' || 
+                    window.location.hostname === 'wails.localhost')
+
+  // Wails desktop app - wait for Wails to be ready
+  if (isDesktop || typeof window !== 'undefined' && window['go']) {
+    const wailsReady = await waitForWails()
+    
+    if (wailsReady) {
+      try {
+        // Access Wails Go bindings via window object
+        const url = await window['go']['main']['App']['GetAPIBaseURL']()
+        cachedAPIBaseURL = url
+        console.log('Desktop app using API URL from config:', url)
+        return url
+      } catch (error) {
+        console.error('Failed to get API URL from Wails:', error)
+        // Fallback to localhost for desktop
+        cachedAPIBaseURL = 'http://localhost:8185'
+        return cachedAPIBaseURL
+      }
+    }
+  }
+
+  // Web app - use environment variable or production default
+  cachedAPIBaseURL = import.meta.env.VITE_API_URL || 'https://bamort-api.trokan.de'
+  console.log('Web app using API URL:', cachedAPIBaseURL)
+  return cachedAPIBaseURL
+}
+
+/**
+ * Check if running in desktop mode (Wails)
+ */
+export function isDesktopMode() {
+  return isWailsApp()
+}

frontend/src/views/LandingView.vue

@@ -44,6 +44,7 @@
 </style>
 
 <script>
+import { getAPIBaseURL } from '../utils/config'
 import axios from 'axios'
 import { getVersion, getGitCommit } from '../version'
 
@@ -80,7 +81,7 @@ export default {
   methods: {
     async fetchBackendVersion() {
       try {
-        const apiUrl = import.meta.env.VITE_API_URL || 'http://localhost:8180'
+        const apiUrl = await getAPIBaseURL()
         const response = await axios.get(`${apiUrl}/api/public/version`)
         
         if (response.data) {

frontend/src/views/SystemInfoView.vue

@@ -115,6 +115,7 @@
 </template>
 
 <script>
+import { getAPIBaseURL } from '../utils/config'
 import axios from 'axios'
 import { getVersion, getGitCommit } from '../version'
 
@@ -157,7 +158,7 @@ export default {
   methods: {
     async fetchBackendVersion() {
       try {
-        const apiUrl = import.meta.env.VITE_API_URL || 'http://localhost:8180'
+        const apiUrl = await getAPIBaseURL()
         const response = await axios.get(`${apiUrl}/api/public/systeminfo`)
         
         if (response.data) {

frontend/wailsjs/go/main/App.d.ts

@@ -0,0 +1,4 @@
+// Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
+// This file is automatically generated. DO NOT EDIT
+
+export function GetAPIBaseURL():Promise<string>;

frontend/wailsjs/go/main/App.js

@@ -0,0 +1,7 @@
+// @ts-check
+// Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
+// This file is automatically generated. DO NOT EDIT
+
+export function GetAPIBaseURL() {
+  return window['go']['main']['App']['GetAPIBaseURL']();
+}