Update Web UI: Add server management scripts and improve UX

UI improvements:
- Add icon-based Execute/Edit/Delete buttons for scripts and callbacks
- Add execution result dialog with stdout/stderr and execution time
- Add favicon with media player icon
- Disable background scrolling when dialogs are open
- Add footer with author information and source code link

Backend enhancements:
- Add execution time tracking to script and callback execution
- Add /api/callbacks/execute endpoint for debugging callbacks
- Return detailed execution results (stdout, stderr, exit_code, execution_time)

Server management:
- Add scripts/start-server.bat - Start server with console window
- Add scripts/start-server-background.vbs - Start server silently
- Add scripts/stop-server.bat - Stop running server instances
- Add scripts/restart-server.bat - Restart the server

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

CLAUDE.md

@@ -26,6 +26,55 @@ To remove the scheduled task:
 Unregister-ScheduledTask -TaskName "MediaServer" -Confirm:$false
 ```
 
+## Development Workflow
+
+### Server Restart After Code Changes
+
+**CRITICAL:** When making changes to backend code (Python files, API routes, service logic), the media server MUST be restarted for changes to take effect.
+
+**When to restart:**
+
+- Changes to any Python files (`*.py`) in the media_server directory
+- Changes to API endpoints, routes, or request/response models
+- Changes to service logic, callbacks, or script execution
+- Changes to configuration handling or startup logic
+
+**When restart is NOT needed:**
+
+- Static file changes (`*.html`, `*.css`, `*.js`, `*.json`) - browser refresh is enough
+- README or documentation updates
+- Changes to install/service scripts (only affects new installations)
+
+**How to restart during development:**
+
+1. Find the running server process:
+
+   ```bash
+   # Windows
+   netstat -ano | findstr :8765
+
+   # Linux/macOS
+   lsof -i :8765
+   ```
+
+2. Stop the server:
+
+   ```bash
+   # Windows
+   taskkill //F //PID <process_id>
+
+   # Linux/macOS
+   kill <process_id>
+   ```
+
+3. Start the server again:
+
+   ```bash
+   python -m media_server.main
+   ```
+
+**Best Practice:** Always restart the server immediately after committing backend changes to verify they work correctly before pushing.
+
 ## Configuration
 
 Copy `config.example.yaml` to `config.yaml` and customize.

README.md

@@ -29,6 +29,7 @@ The media server includes a built-in web interface for controlling and monitorin
 - **Token authentication** - Saved in browser localStorage
 - **Responsive design** - Works on desktop and mobile
 - **Dark theme** - Easy on the eyes
+- **Multi-language support** - English and Russian locales with automatic detection
 
 ### Accessing the Web UI
 
@@ -56,6 +57,38 @@ To access the Web UI from other devices on your network:
 
 **Security Note:** For remote access over the internet, use a reverse proxy with HTTPS (nginx, Caddy) to encrypt traffic.
 
+### Localization
+
+The Web UI supports multiple languages with automatic browser locale detection:
+
+**Available Languages:**
+
+- **English (en)** - Default
+- **Русский (ru)** - Russian
+
+The interface automatically detects your browser language on first visit. You can manually switch languages using the dropdown in the top-right corner of the Web UI.
+
+**Contributing New Locales:**
+
+We welcome translations for additional languages! To contribute a new locale:
+
+1. Copy `media_server/static/locales/en.json` to a new file named with your language code (e.g., `de.json` for German)
+2. Translate all strings to your language, keeping the same JSON structure
+3. Add your language to the `supportedLocales` object in `media_server/static/index.html`:
+
+   ```javascript
+   const supportedLocales = {
+       'en': 'English',
+       'ru': 'Русский',
+       'de': 'Deutsch'  // Add your language here
+   };
+   ```
+
+4. Test the translation by switching to your language in the Web UI
+5. Submit a pull request with your changes
+
+See [CLAUDE.md](CLAUDE.md#internationalization-i18n) for detailed translation guidelines.
+
 ## Requirements
 
 - Python 3.10+

media_server/routes/callbacks.py

@@ -1,7 +1,10 @@
 """Callback management API endpoints."""
 
+import asyncio
 import logging
 import re
+import subprocess
+import time
 from typing import Any
 
 from fastapi import APIRouter, Depends, HTTPException, status
@@ -34,6 +37,18 @@ class CallbackCreateRequest(BaseModel):
     shell: bool = Field(default=True, description="Run command in shell")
 
 
+class CallbackExecuteResponse(BaseModel):
+    """Response model for callback execution."""
+
+    success: bool
+    callback: str
+    exit_code: int | None = None
+    stdout: str = ""
+    stderr: str = ""
+    error: str | None = None
+    execution_time: float | None = None
+
+
 def _validate_callback_name(name: str) -> None:
     """Validate callback name.
 
@@ -84,6 +99,116 @@ async def list_callbacks(_: str = Depends(verify_token)) -> list[CallbackInfo]:
     ]
 
 
+@router.post("/execute/{callback_name}")
+async def execute_callback(
+    callback_name: str,
+    _: str = Depends(verify_token),
+) -> CallbackExecuteResponse:
+    """Execute a callback for debugging purposes.
+
+    Args:
+        callback_name: Name of the callback to execute
+
+    Returns:
+        Execution result including stdout, stderr, and exit code
+    """
+    # Validate callback name
+    _validate_callback_name(callback_name)
+
+    # Check if callback exists
+    if callback_name not in settings.callbacks:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail=f"Callback '{callback_name}' not found. Use /api/callbacks/list to see configured callbacks.",
+        )
+
+    callback_config = settings.callbacks[callback_name]
+
+    logger.info(f"Executing callback for debugging: {callback_name}")
+
+    try:
+        # Execute in thread pool to not block
+        loop = asyncio.get_event_loop()
+        result = await loop.run_in_executor(
+            None,
+            lambda: _run_callback(
+                command=callback_config.command,
+                timeout=callback_config.timeout,
+                shell=callback_config.shell,
+                working_dir=callback_config.working_dir,
+            ),
+        )
+
+        return CallbackExecuteResponse(
+            success=result["exit_code"] == 0,
+            callback=callback_name,
+            exit_code=result["exit_code"],
+            stdout=result["stdout"],
+            stderr=result["stderr"],
+            execution_time=result.get("execution_time"),
+        )
+
+    except Exception as e:
+        logger.error(f"Callback execution error: {e}")
+        return CallbackExecuteResponse(
+            success=False,
+            callback=callback_name,
+            error=str(e),
+        )
+
+
+def _run_callback(
+    command: str,
+    timeout: int,
+    shell: bool,
+    working_dir: str | None,
+) -> dict[str, Any]:
+    """Run a callback synchronously.
+
+    Args:
+        command: Command to execute
+        timeout: Timeout in seconds
+        shell: Whether to run in shell
+        working_dir: Working directory
+
+    Returns:
+        Dict with exit_code, stdout, stderr, execution_time
+    """
+    start_time = time.time()
+    try:
+        result = subprocess.run(
+            command,
+            shell=shell,
+            cwd=working_dir,
+            capture_output=True,
+            text=True,
+            timeout=timeout,
+        )
+        execution_time = time.time() - start_time
+        return {
+            "exit_code": result.returncode,
+            "stdout": result.stdout[:10000],  # Limit output size
+            "stderr": result.stderr[:10000],
+            "execution_time": execution_time,
+        }
+    except subprocess.TimeoutExpired:
+        execution_time = time.time() - start_time
+        return {
+            "exit_code": -1,
+            "stdout": "",
+            "stderr": f"Callback timed out after {timeout} seconds",
+            "execution_time": execution_time,
+        }
+    except Exception as e:
+        execution_time = time.time() - start_time
+        return {
+            "exit_code": -1,
+            "stdout": "",
+            "stderr": str(e),
+            "execution_time": execution_time,
+        }
+
+
 @router.post("/create/{callback_name}")
 async def create_callback(
     callback_name: str,

media_server/routes/scripts.py

@@ -4,6 +4,7 @@ import asyncio
 import logging
 import re
 import subprocess
+import time
 from typing import Any
 
 from fastapi import APIRouter, Depends, HTTPException, status
@@ -33,6 +34,7 @@ class ScriptExecuteResponse(BaseModel):
     stdout: str = ""
     stderr: str = ""
     error: str | None = None
+    execution_time: float | None = None
 
 
 class ScriptInfo(BaseModel):
@@ -117,6 +119,7 @@ async def execute_script(
             exit_code=result["exit_code"],
             stdout=result["stdout"],
             stderr=result["stderr"],
+            execution_time=result.get("execution_time"),
         )
 
     except Exception as e:
@@ -143,8 +146,9 @@ def _run_script(
         working_dir: Working directory
 
     Returns:
-        Dict with exit_code, stdout, stderr
+        Dict with exit_code, stdout, stderr, execution_time
     """
+    start_time = time.time()
     try:
         result = subprocess.run(
             command,
@@ -154,22 +158,28 @@ def _run_script(
             text=True,
             timeout=timeout,
         )
+        execution_time = time.time() - start_time
         return {
             "exit_code": result.returncode,
             "stdout": result.stdout[:10000],  # Limit output size
             "stderr": result.stderr[:10000],
+            "execution_time": execution_time,
         }
     except subprocess.TimeoutExpired:
+        execution_time = time.time() - start_time
         return {
             "exit_code": -1,
             "stdout": "",
             "stderr": f"Script timed out after {timeout} seconds",
+            "execution_time": execution_time,
         }
     except Exception as e:
+        execution_time = time.time() - start_time
         return {
             "exit_code": -1,
             "stdout": "",
             "stderr": str(e),
+            "execution_time": execution_time,
         }
 
 

media_server/static/index.html

@@ -4,6 +4,7 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>Media Server</title>
+    <link rel="icon" type="image/svg+xml" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'%3E%3Cdefs%3E%3ClinearGradient id='grad' x1='0%25' y1='0%25' x2='100%25' y2='100%25'%3E%3Cstop offset='0%25' style='stop-color:%231db954;stop-opacity:1' /%3E%3Cstop offset='100%25' style='stop-color:%231ed760;stop-opacity:1' /%3E%3C/linearGradient%3E%3C/defs%3E%3Ccircle cx='50' cy='50' r='45' fill='url(%23grad)'/%3E%3Cpath fill='white' d='M35 25 L35 75 L75 50 Z'/%3E%3C/svg%3E">
     <style>
         :root {
             --bg-primary: #121212;
@@ -44,6 +45,21 @@
             line-height: 1.6;
         }
 
+        /* Prevent flash of untranslated content */
+        body.loading-translations {
+            opacity: 0;
+            transition: opacity 0.1s ease-in;
+        }
+
+        body.translations-loaded {
+            opacity: 1;
+        }
+
+        /* Prevent scrolling when dialog is open */
+        body.dialog-open {
+            overflow: hidden;
+        }
+
         .container {
             max-width: 800px;
             margin: 0 auto;
@@ -108,22 +124,30 @@
             fill: var(--text-primary);
         }
 
-        #locale-toggle {
-            background: none;
-            border: 2px solid var(--text-secondary);
+        #locale-select {
+            background: var(--bg-tertiary);
+            border: 1px solid var(--border);
             color: var(--text-primary);
             border-radius: 6px;
             padding: 6px 12px;
             cursor: pointer;
             font-size: 14px;
-            font-weight: bold;
+            font-weight: 500;
             transition: all 0.3s ease;
         }
 
-        #locale-toggle:hover {
+        #locale-select:hover {
             border-color: var(--accent);
-            color: var(--accent);
-            transform: scale(1.05);
+        }
+
+        #locale-select:focus {
+            outline: none;
+            border-color: var(--accent);
+        }
+
+        #locale-select option {
+            background: var(--bg-secondary);
+            color: var(--text-primary);
         }
 
         .player-container {
@@ -457,20 +481,30 @@
         }
 
         .action-btn {
-            padding: 0.25rem 0.75rem;
-            margin-right: 0.5rem;
-            border-radius: 4px;
+            padding: 0.5rem;
+            border-radius: 6px;
             border: 1px solid var(--border);
             background: var(--bg-tertiary);
             color: var(--text-primary);
             cursor: pointer;
-            font-size: 0.75rem;
             transition: all 0.2s;
+            width: 32px;
+            height: 32px;
+            display: inline-flex;
+            align-items: center;
+            justify-content: center;
+        }
+
+        .action-btn svg {
+            width: 16px;
+            height: 16px;
+            fill: currentColor;
         }
 
         .action-btn:hover {
             background: var(--accent);
             border-color: var(--accent);
+            transform: translateY(-1px);
         }
 
         .action-btn.delete:hover {
@@ -478,6 +512,95 @@
             border-color: var(--error);
         }
 
+        .action-buttons {
+            display: flex;
+            gap: 0.5rem;
+            align-items: center;
+        }
+
+        .action-btn.execute:hover {
+            background: #3b82f6;
+            border-color: #3b82f6;
+        }
+
+        /* Execution Result Dialog */
+        .execution-result {
+            font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
+            background: var(--bg-primary);
+            border-radius: 6px;
+            padding: 1rem;
+            margin: 0.5rem 0;
+            max-height: 400px;
+            overflow-y: auto;
+        }
+
+        .execution-result pre {
+            margin: 0;
+            white-space: pre-wrap;
+            word-wrap: break-word;
+            font-size: 0.813rem;
+            line-height: 1.5;
+        }
+
+        .execution-status {
+            display: flex;
+            gap: 1rem;
+            margin-bottom: 1rem;
+            flex-wrap: wrap;
+        }
+
+        .status-item {
+            display: flex;
+            flex-direction: column;
+            gap: 0.25rem;
+        }
+
+        .status-item label {
+            font-size: 0.75rem;
+            color: var(--text-muted);
+            text-transform: uppercase;
+            font-weight: 600;
+        }
+
+        .status-item value {
+            font-size: 0.875rem;
+            color: var(--text-primary);
+            font-weight: 500;
+        }
+
+        .status-item.success value {
+            color: var(--accent);
+        }
+
+        .status-item.error value {
+            color: var(--error);
+        }
+
+        .result-section {
+            margin-bottom: 1rem;
+        }
+
+        .result-section h4 {
+            font-size: 0.875rem;
+            color: var(--text-secondary);
+            margin-bottom: 0.5rem;
+            font-weight: 600;
+        }
+
+        .loading-spinner {
+            display: inline-block;
+            width: 20px;
+            height: 20px;
+            border: 3px solid var(--bg-tertiary);
+            border-top-color: var(--accent);
+            border-radius: 50%;
+            animation: spin 0.8s linear infinite;
+        }
+
+        @keyframes spin {
+            to { transform: rotate(360deg); }
+        }
+
         /* Dialog Styles */
         dialog {
             background: var(--bg-secondary);
@@ -486,9 +609,15 @@
             padding: 0;
             max-width: 500px;
             width: 90%;
+            margin: auto;
             box-shadow: 0 8px 32px rgba(0, 0, 0, 0.8);
         }
 
+        /* Ensure dialogs are hidden until explicitly opened */
+        dialog:not([open]) {
+            display: none;
+        }
+
         dialog::backdrop {
             background: rgba(0, 0, 0, 0.8);
         }
@@ -550,13 +679,15 @@
         }
 
         .dialog-footer button {
-            padding: 0.5rem 1rem;
+            padding: 0.625rem 1.5rem;
             border-radius: 6px;
             border: none;
             font-size: 0.875rem;
             font-weight: 600;
             cursor: pointer;
             transition: background 0.2s;
+            min-width: 100px;
+            white-space: nowrap;
         }
 
         .dialog-footer .btn-primary {
@@ -757,14 +888,40 @@
                 font-size: 1.5rem;
             }
         }
+
+        /* Footer */
+        footer {
+            text-align: center;
+            padding: 2rem 1rem;
+            margin-top: 3rem;
+            border-top: 1px solid var(--border);
+            color: var(--text-secondary);
+            font-size: 0.875rem;
+        }
+
+        footer a {
+            color: var(--accent);
+            text-decoration: none;
+            transition: color 0.2s;
+        }
+
+        footer a:hover {
+            color: var(--accent-hover);
+            text-decoration: underline;
+        }
+
+        footer .separator {
+            margin: 0 0.5rem;
+            color: var(--text-muted);
+        }
     </style>
 </head>
-<body>
+<body class="loading-translations">
     <!-- Clear Token Button -->
     <button class="clear-token-btn" onclick="clearToken()" data-i18n-title="auth.logout.title" data-i18n="auth.logout" title="Clear saved token">Logout</button>
 
     <!-- Auth Modal -->
-    <div id="auth-overlay">
+    <div id="auth-overlay" class="hidden">
         <div class="auth-modal">
             <h2 data-i18n="app.title">Media Server</h2>
             <p data-i18n="auth.message">Enter your API token to connect to the media server.</p>
@@ -790,7 +947,10 @@
                         <path d="M9 2c-1.05 0-2.05.16-3 .46 4.06 1.27 7 5.06 7 9.54 0 4.48-2.94 8.27-7 9.54.95.3 1.95.46 3 .46 5.52 0 10-4.48 10-10S14.52 2 9 2z"/>
                     </svg>
                 </button>
-                <button id="locale-toggle" onclick="toggleLocale()" data-i18n-title="player.locale" title="Change language">EN</button>
+                <select id="locale-select" onchange="changeLocale()" title="Change language">
+                    <option value="en">English</option>
+                    <option value="ru">Русский</option>
+                </select>
                 <div class="status-indicator">
                     <span class="status-dot" id="status-dot"></span>
                     <span id="status-text" data-i18n="player.status.disconnected">Disconnected</span>
@@ -920,7 +1080,7 @@
     <!-- Add/Edit Script Dialog -->
     <dialog id="scriptDialog">
         <div class="dialog-header">
-            <h3 id="dialogTitle">Add Script</h3>
+            <h3 id="dialogTitle" data-i18n="scripts.dialog.add">Add Script</h3>
         </div>
         <form id="scriptForm" onsubmit="saveScript(event)">
             <div class="dialog-body">
@@ -928,39 +1088,39 @@
                 <input type="hidden" id="scriptIsEdit">
 
                 <label>
-                    Script Name *
+                    <span data-i18n="scripts.field.name">Script Name *</span>
                     <input type="text" id="scriptName" required pattern="[a-zA-Z0-9_]+"
-                           title="Only letters, numbers, and underscores allowed" maxlength="64">
+                           data-i18n-title="scripts.placeholder.name" title="Only letters, numbers, and underscores allowed" maxlength="64">
                 </label>
 
                 <label>
-                    Label
-                    <input type="text" id="scriptLabel" placeholder="Human-readable name">
+                    <span data-i18n="scripts.field.label">Label</span>
+                    <input type="text" id="scriptLabel" data-i18n-placeholder="scripts.placeholder.label" placeholder="Human-readable name">
                 </label>
 
                 <label>
-                    Command *
-                    <input type="text" id="scriptCommand" required placeholder="e.g., shutdown /s /t 0">
+                    <span data-i18n="scripts.field.command">Command *</span>
+                    <textarea id="scriptCommand" required rows="3" data-i18n-placeholder="scripts.placeholder.command" placeholder="e.g., shutdown /s /t 0"></textarea>
                 </label>
 
                 <label>
-                    Description
-                    <textarea id="scriptDescription" placeholder="What does this script do?"></textarea>
+                    <span data-i18n="scripts.field.description">Description</span>
+                    <textarea id="scriptDescription" data-i18n-placeholder="scripts.placeholder.description" placeholder="What does this script do?"></textarea>
                 </label>
 
                 <label>
-                    Icon (MDI)
-                    <input type="text" id="scriptIcon" placeholder="e.g., mdi:power">
+                    <span data-i18n="scripts.field.icon">Icon (MDI)</span>
+                    <input type="text" id="scriptIcon" data-i18n-placeholder="scripts.placeholder.icon" placeholder="e.g., mdi:power">
                 </label>
 
                 <label>
-                    Timeout (seconds)
+                    <span data-i18n="scripts.field.timeout">Timeout (seconds)</span>
                     <input type="number" id="scriptTimeout" value="30" min="1" max="300">
                 </label>
             </div>
             <div class="dialog-footer">
-                <button type="button" class="btn-secondary" onclick="closeScriptDialog()">Cancel</button>
-                <button type="submit" class="btn-primary">Save</button>
+                <button type="button" class="btn-secondary" onclick="closeScriptDialog()" data-i18n="scripts.button.cancel">Cancel</button>
+                <button type="submit" class="btn-primary" data-i18n="scripts.button.save">Save</button>
             </div>
         </form>
     </dialog>
@@ -968,55 +1128,91 @@
     <!-- Add/Edit Callback Dialog -->
     <dialog id="callbackDialog">
         <div class="dialog-header">
-            <h3 id="callbackDialogTitle">Add Callback</h3>
+            <h3 id="callbackDialogTitle" data-i18n="callbacks.dialog.add">Add Callback</h3>
         </div>
         <form id="callbackForm" onsubmit="saveCallback(event)">
             <div class="dialog-body">
                 <input type="hidden" id="callbackIsEdit">
 
                 <label>
-                    Event *
+                    <span data-i18n="callbacks.field.event">Event *</span>
                     <select id="callbackName" required>
-                        <option value="">Select event...</option>
-                        <option value="on_play">on_play - After play succeeds</option>
-                        <option value="on_pause">on_pause - After pause succeeds</option>
-                        <option value="on_stop">on_stop - After stop succeeds</option>
-                        <option value="on_next">on_next - After next track succeeds</option>
-                        <option value="on_previous">on_previous - After previous track succeeds</option>
-                        <option value="on_volume">on_volume - After volume change</option>
-                        <option value="on_mute">on_mute - After mute toggle</option>
-                        <option value="on_seek">on_seek - After seek succeeds</option>
-                        <option value="on_turn_on">on_turn_on - Callback-only action</option>
-                        <option value="on_turn_off">on_turn_off - Callback-only action</option>
-                        <option value="on_toggle">on_toggle - Callback-only action</option>
+                        <option value="" data-i18n="callbacks.placeholder.event">Select event...</option>
+                        <option value="on_play" data-i18n="callbacks.event.on_play">on_play - After play succeeds</option>
+                        <option value="on_pause" data-i18n="callbacks.event.on_pause">on_pause - After pause succeeds</option>
+                        <option value="on_stop" data-i18n="callbacks.event.on_stop">on_stop - After stop succeeds</option>
+                        <option value="on_next" data-i18n="callbacks.event.on_next">on_next - After next track succeeds</option>
+                        <option value="on_previous" data-i18n="callbacks.event.on_previous">on_previous - After previous track succeeds</option>
+                        <option value="on_volume" data-i18n="callbacks.event.on_volume">on_volume - After volume change</option>
+                        <option value="on_mute" data-i18n="callbacks.event.on_mute">on_mute - After mute toggle</option>
+                        <option value="on_seek" data-i18n="callbacks.event.on_seek">on_seek - After seek succeeds</option>
+                        <option value="on_turn_on" data-i18n="callbacks.event.on_turn_on">on_turn_on - Callback-only action</option>
+                        <option value="on_turn_off" data-i18n="callbacks.event.on_turn_off">on_turn_off - Callback-only action</option>
+                        <option value="on_toggle" data-i18n="callbacks.event.on_toggle">on_toggle - Callback-only action</option>
                     </select>
                 </label>
 
                 <label>
-                    Command *
-                    <input type="text" id="callbackCommand" required placeholder="e.g., shutdown /s /t 0">
+                    <span data-i18n="callbacks.field.command">Command *</span>
+                    <textarea id="callbackCommand" required rows="3" data-i18n-placeholder="callbacks.placeholder.command" placeholder="e.g., shutdown /s /t 0"></textarea>
                 </label>
 
                 <label>
-                    Timeout (seconds)
+                    <span data-i18n="callbacks.field.timeout">Timeout (seconds)</span>
                     <input type="number" id="callbackTimeout" value="30" min="1" max="300">
                 </label>
 
                 <label>
-                    Working Directory
-                    <input type="text" id="callbackWorkingDir" placeholder="Optional">
+                    <span data-i18n="callbacks.field.workdir">Working Directory</span>
+                    <input type="text" id="callbackWorkingDir" data-i18n-placeholder="callbacks.placeholder.workdir" placeholder="Optional">
                 </label>
             </div>
             <div class="dialog-footer">
-                <button type="button" class="btn-secondary" onclick="closeCallbackDialog()">Cancel</button>
-                <button type="submit" class="btn-primary">Save</button>
+                <button type="button" class="btn-secondary" onclick="closeCallbackDialog()" data-i18n="callbacks.button.cancel">Cancel</button>
+                <button type="submit" class="btn-primary" data-i18n="callbacks.button.save">Save</button>
             </div>
         </form>
     </dialog>
 
+    <!-- Execution Result Dialog -->
+    <dialog id="executionDialog">
+        <div class="dialog-header">
+            <h3 id="executionDialogTitle">Execution Result</h3>
+        </div>
+        <div class="dialog-body">
+            <div class="execution-status" id="executionStatus"></div>
+            <div class="result-section" id="outputSection" style="display: none;">
+                <h4>Output</h4>
+                <div class="execution-result">
+                    <pre id="executionOutput"></pre>
+                </div>
+            </div>
+            <div class="result-section" id="errorSection" style="display: none;">
+                <h4>Error Output</h4>
+                <div class="execution-result">
+                    <pre id="executionError"></pre>
+                </div>
+            </div>
+        </div>
+        <div class="dialog-footer">
+            <button type="button" class="btn-secondary" onclick="closeExecutionDialog()">Close</button>
+        </div>
+    </dialog>
+
     <!-- Toast Notification -->
     <div class="toast" id="toast"></div>
 
+    <!-- Footer -->
+    <footer>
+        <div>
+            Created by <strong>Alexei Dolgolyov</strong>
+            <span class="separator">•</span>
+            <a href="mailto:dolgolyov.alexei@gmail.com">dolgolyov.alexei@gmail.com</a>
+            <span class="separator">•</span>
+            <a href="https://git.dolgolyov-family.by/alexei.dolgolyov/media-player-server" target="_blank" rel="noopener noreferrer">Source Code</a>
+        </div>
+    </footer>
+
     <script>
         // Theme management
         function initTheme() {
@@ -1049,7 +1245,10 @@
         // Locale management
         let currentLocale = 'en';
         let translations = {};
-        const supportedLocales = ['en', 'ru'];
+        const supportedLocales = {
+            'en': 'English',
+            'ru': 'Русский'
+        };
 
         // Minimal inline fallback for critical UI elements
         const fallbackTranslations = {
@@ -1096,7 +1295,7 @@
             const langCode = browserLang.split('-')[0]; // 'en-US' -> 'en', 'ru-RU' -> 'ru'
 
             // Only return if we support it
-            return supportedLocales.includes(langCode) ? langCode : 'en';
+            return supportedLocales[langCode] ? langCode : 'en';
         }
 
         // Initialize locale
@@ -1107,7 +1306,7 @@
 
         // Set locale
         async function setLocale(locale) {
-            if (!supportedLocales.includes(locale)) {
+            if (!supportedLocales[locale]) {
                 locale = 'en';
             }
 
@@ -1122,22 +1321,29 @@
             // Update all text
             updateAllText();
 
-            // Update locale toggle button (if visible)
-            updateLocaleToggle();
+            // Update locale select dropdown (if visible)
+            updateLocaleSelect();
+
+            // Remove loading class and show content
+            document.body.classList.remove('loading-translations');
+            document.body.classList.add('translations-loaded');
         }
 
-        // Toggle between locales
-        async function toggleLocale() {
-            const newLocale = currentLocale === 'en' ? 'ru' : 'en';
-            await setLocale(newLocale);
+        // Change locale from dropdown
+        function changeLocale() {
+            const select = document.getElementById('locale-select');
+            const newLocale = select.value;
+            if (newLocale && newLocale !== currentLocale) {
+                localStorage.setItem('locale', newLocale);
+                setLocale(newLocale);
+            }
         }
 
-        // Update locale toggle button
-        function updateLocaleToggle() {
-            const localeButton = document.getElementById('locale-toggle');
-            if (localeButton) {
-                localeButton.textContent = currentLocale === 'en' ? 'RU' : 'EN';
-                localeButton.title = t('player.locale');
+        // Update locale select dropdown
+        function updateLocaleSelect() {
+            const select = document.getElementById('locale-select');
+            if (select) {
+                select.value = currentLocale;
             }
         }
 
@@ -1192,6 +1398,10 @@
         let scripts = [];
         let lastStatus = null;  // Store last status for locale switching
 
+        // Dialog dirty state tracking
+        let scriptFormDirty = false;
+        let callbackFormDirty = false;
+
         // Position interpolation
         let lastPositionUpdate = 0;
         let lastPositionValue = 0;
@@ -1247,6 +1457,42 @@
                     authenticate();
                 }
             });
+
+            // Script form dirty state tracking
+            const scriptForm = document.getElementById('scriptForm');
+            scriptForm.addEventListener('input', () => {
+                scriptFormDirty = true;
+            });
+            scriptForm.addEventListener('change', () => {
+                scriptFormDirty = true;
+            });
+
+            // Callback form dirty state tracking
+            const callbackForm = document.getElementById('callbackForm');
+            callbackForm.addEventListener('input', () => {
+                callbackFormDirty = true;
+            });
+            callbackForm.addEventListener('change', () => {
+                callbackFormDirty = true;
+            });
+
+            // Script dialog backdrop click to close
+            const scriptDialog = document.getElementById('scriptDialog');
+            scriptDialog.addEventListener('click', (e) => {
+                // Check if click is on the backdrop (not the dialog content)
+                if (e.target === scriptDialog) {
+                    closeScriptDialog();
+                }
+            });
+
+            // Callback dialog backdrop click to close
+            const callbackDialog = document.getElementById('callbackDialog');
+            callbackDialog.addEventListener('click', (e) => {
+                // Check if click is on the backdrop (not the dialog content)
+                if (e.target === callbackDialog) {
+                    closeCallbackDialog();
+                }
+            });
         });
 
         function showAuthForm(errorMessage = '') {
@@ -1676,12 +1922,21 @@
                     <tr>
                         <td><code>${script.name}</code></td>
                         <td>${script.label || script.name}</td>
-                        <td style="max-width: 300px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;"
+                        <td style="max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;"
                             title="${escapeHtml(script.command || 'N/A')}">${escapeHtml(script.command || 'N/A')}</td>
                         <td>${script.timeout}s</td>
                         <td>
-                            <button class="action-btn" onclick="showEditScriptDialog('${script.name}')">Edit</button>
-                            <button class="action-btn delete" onclick="deleteScriptConfirm('${script.name}')">Delete</button>
+                            <div class="action-buttons">
+                                <button class="action-btn execute" onclick="executeScriptDebug('${script.name}')" title="Execute script">
+                                    <svg viewBox="0 0 24 24"><path d="M8 5v14l11-7z"/></svg>
+                                </button>
+                                <button class="action-btn" onclick="showEditScriptDialog('${script.name}')" title="Edit script">
+                                    <svg viewBox="0 0 24 24"><path d="M3 17.25V21h3.75L17.81 9.94l-3.75-3.75L3 17.25zM20.71 7.04c.39-.39.39-1.02 0-1.41l-2.34-2.34c-.39-.39-1.02-.39-1.41 0l-1.83 1.83 3.75 3.75 1.83-1.83z"/></svg>
+                                </button>
+                                <button class="action-btn delete" onclick="deleteScriptConfirm('${script.name}')" title="Delete script">
+                                    <svg viewBox="0 0 24 24"><path d="M6 19c0 1.1.9 2 2 2h8c1.1 0 2-.9 2-2V7H6v12zM19 4h-3.5l-1-1h-5l-1 1H5v2h14V4z"/></svg>
+                                </button>
+                            </div>
                         </td>
                     </tr>
                 `).join('');
@@ -1707,8 +1962,12 @@
             document.getElementById('scriptOriginalName').value = '';
             document.getElementById('scriptIsEdit').value = 'false';
             document.getElementById('scriptName').disabled = false;
-            title.textContent = 'Add Script';
+            title.textContent = t('scripts.dialog.add');
 
+            // Reset dirty state
+            scriptFormDirty = false;
+
+            document.body.classList.add('dialog-open');
             dialog.showModal();
         }
 
@@ -1746,7 +2005,12 @@
                 document.getElementById('scriptIcon').value = script.icon || '';
                 document.getElementById('scriptTimeout').value = script.timeout || 30;
 
-                title.textContent = 'Edit Script';
+                title.textContent = t('scripts.dialog.edit');
+
+                // Reset dirty state
+                scriptFormDirty = false;
+
+                document.body.classList.add('dialog-open');
                 dialog.showModal();
             } catch (error) {
                 console.error('Error loading script for edit:', error);
@@ -1755,8 +2019,17 @@
         }
 
         function closeScriptDialog() {
+            // Check if form has unsaved changes
+            if (scriptFormDirty) {
+                if (!confirm(t('scripts.confirm.unsaved'))) {
+                    return; // User cancelled, don't close
+                }
+            }
+
             const dialog = document.getElementById('scriptDialog');
+            scriptFormDirty = false; // Reset dirty state
             dialog.close();
+            document.body.classList.remove('dialog-open');
         }
 
         async function saveScript(event) {
@@ -1797,6 +2070,7 @@
 
                 if (response.ok && result.success) {
                     showToast(`Script ${isEdit ? 'updated' : 'created'} successfully`, 'success');
+                    scriptFormDirty = false; // Reset dirty state before closing
                     closeScriptDialog();
                     // Don't reload manually - WebSocket will trigger it
                 } else {
@@ -1862,12 +2136,21 @@
                 tbody.innerHTML = callbacksList.map(callback => `
                     <tr>
                         <td><code>${callback.name}</code></td>
-                        <td style="max-width: 400px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;"
+                        <td style="max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;"
                             title="${escapeHtml(callback.command)}">${escapeHtml(callback.command)}</td>
                         <td>${callback.timeout}s</td>
                         <td>
-                            <button class="action-btn" onclick="showEditCallbackDialog('${callback.name}')">Edit</button>
-                            <button class="action-btn delete" onclick="deleteCallbackConfirm('${callback.name}')">Delete</button>
+                            <div class="action-buttons">
+                                <button class="action-btn execute" onclick="executeCallbackDebug('${callback.name}')" title="Execute callback">
+                                    <svg viewBox="0 0 24 24"><path d="M8 5v14l11-7z"/></svg>
+                                </button>
+                                <button class="action-btn" onclick="showEditCallbackDialog('${callback.name}')" title="Edit callback">
+                                    <svg viewBox="0 0 24 24"><path d="M3 17.25V21h3.75L17.81 9.94l-3.75-3.75L3 17.25zM20.71 7.04c.39-.39.39-1.02 0-1.41l-2.34-2.34c-.39-.39-1.02-.39-1.41 0l-1.83 1.83 3.75 3.75 1.83-1.83z"/></svg>
+                                </button>
+                                <button class="action-btn delete" onclick="deleteCallbackConfirm('${callback.name}')" title="Delete callback">
+                                    <svg viewBox="0 0 24 24"><path d="M6 19c0 1.1.9 2 2 2h8c1.1 0 2-.9 2-2V7H6v12zM19 4h-3.5l-1-1h-5l-1 1H5v2h14V4z"/></svg>
+                                </button>
+                            </div>
                         </td>
                     </tr>
                 `).join('');
@@ -1886,8 +2169,12 @@
             form.reset();
             document.getElementById('callbackIsEdit').value = 'false';
             document.getElementById('callbackName').disabled = false;
-            title.textContent = 'Add Callback';
+            title.textContent = t('callbacks.dialog.add');
 
+            // Reset dirty state
+            callbackFormDirty = false;
+
+            document.body.classList.add('dialog-open');
             dialog.showModal();
         }
 
@@ -1922,7 +2209,12 @@
                 document.getElementById('callbackTimeout').value = callback.timeout;
                 document.getElementById('callbackWorkingDir').value = callback.working_dir || '';
 
-                title.textContent = 'Edit Callback';
+                title.textContent = t('callbacks.dialog.edit');
+
+                // Reset dirty state
+                callbackFormDirty = false;
+
+                document.body.classList.add('dialog-open');
                 dialog.showModal();
             } catch (error) {
                 console.error('Error loading callback for edit:', error);
@@ -1931,8 +2223,17 @@
         }
 
         function closeCallbackDialog() {
+            // Check if form has unsaved changes
+            if (callbackFormDirty) {
+                if (!confirm(t('callbacks.confirm.unsaved'))) {
+                    return; // User cancelled, don't close
+                }
+            }
+
             const dialog = document.getElementById('callbackDialog');
+            callbackFormDirty = false; // Reset dirty state
             dialog.close();
+            document.body.classList.remove('dialog-open');
         }
 
         async function saveCallback(event) {
@@ -1969,6 +2270,7 @@
 
                 if (response.ok && result.success) {
                     showToast(`Callback ${isEdit ? 'updated' : 'created'} successfully`, 'success');
+                    callbackFormDirty = false; // Reset dirty state before closing
                     closeCallbackDialog();
                     loadCallbacksTable();
                 } else {
@@ -2008,6 +2310,179 @@
                 showToast('Error deleting callback', 'error');
             }
         }
+
+        // Execution Result Dialog Functions
+
+        function closeExecutionDialog() {
+            const dialog = document.getElementById('executionDialog');
+            dialog.close();
+            document.body.classList.remove('dialog-open');
+        }
+
+        function showExecutionResult(name, result, type = 'script') {
+            const dialog = document.getElementById('executionDialog');
+            const title = document.getElementById('executionDialogTitle');
+            const statusDiv = document.getElementById('executionStatus');
+            const outputSection = document.getElementById('outputSection');
+            const errorSection = document.getElementById('errorSection');
+            const outputPre = document.getElementById('executionOutput');
+            const errorPre = document.getElementById('executionError');
+
+            // Set title
+            title.textContent = `Execution Result: ${name}`;
+
+            // Build status display
+            const success = result.success && result.exit_code === 0;
+            const statusClass = success ? 'success' : 'error';
+            const statusText = success ? 'Success' : 'Failed';
+
+            statusDiv.innerHTML = `
+                <div class="status-item ${statusClass}">
+                    <label>Status</label>
+                    <value>${statusText}</value>
+                </div>
+                <div class="status-item">
+                    <label>Exit Code</label>
+                    <value>${result.exit_code !== undefined ? result.exit_code : 'N/A'}</value>
+                </div>
+                <div class="status-item">
+                    <label>Duration</label>
+                    <value>${result.execution_time !== undefined && result.execution_time !== null ? result.execution_time.toFixed(3) + 's' : 'N/A'}</value>
+                </div>
+            `;
+
+            // Always show output section
+            outputSection.style.display = 'block';
+            if (result.stdout && result.stdout.trim()) {
+                outputPre.textContent = result.stdout;
+            } else {
+                outputPre.textContent = '(no output)';
+                outputPre.style.fontStyle = 'italic';
+                outputPre.style.color = 'var(--text-secondary)';
+            }
+
+            // Show error output if present
+            if (result.stderr && result.stderr.trim()) {
+                errorSection.style.display = 'block';
+                errorPre.textContent = result.stderr;
+                errorPre.style.fontStyle = 'normal';
+                errorPre.style.color = 'var(--error)';
+            } else if (!success && result.error) {
+                errorSection.style.display = 'block';
+                errorPre.textContent = result.error;
+                errorPre.style.fontStyle = 'normal';
+                errorPre.style.color = 'var(--error)';
+            } else {
+                errorSection.style.display = 'none';
+            }
+
+            dialog.showModal();
+        }
+
+        async function executeScriptDebug(scriptName) {
+            const token = localStorage.getItem('media_server_token');
+            const dialog = document.getElementById('executionDialog');
+            const title = document.getElementById('executionDialogTitle');
+            const statusDiv = document.getElementById('executionStatus');
+
+            // Show dialog with loading state
+            title.textContent = `Executing: ${scriptName}`;
+            statusDiv.innerHTML = `
+                <div class="status-item">
+                    <label>Status</label>
+                    <value><span class="loading-spinner"></span> Running...</value>
+                </div>
+            `;
+            document.getElementById('outputSection').style.display = 'none';
+            document.getElementById('errorSection').style.display = 'none';
+            document.body.classList.add('dialog-open');
+            dialog.showModal();
+
+            try {
+                const response = await fetch(`/api/scripts/execute/${scriptName}`, {
+                    method: 'POST',
+                    headers: {
+                        'Authorization': `Bearer ${token}`,
+                        'Content-Type': 'application/json'
+                    },
+                    body: JSON.stringify({ args: [] })
+                });
+
+                const result = await response.json();
+
+                if (response.ok) {
+                    showExecutionResult(scriptName, result, 'script');
+                } else {
+                    showExecutionResult(scriptName, {
+                        success: false,
+                        exit_code: -1,
+                        error: result.detail || 'Execution failed',
+                        stderr: result.detail || 'Unknown error'
+                    }, 'script');
+                }
+            } catch (error) {
+                console.error(`Error executing script ${scriptName}:`, error);
+                showExecutionResult(scriptName, {
+                    success: false,
+                    exit_code: -1,
+                    error: error.message,
+                    stderr: `Network error: ${error.message}`
+                }, 'script');
+            }
+        }
+
+        async function executeCallbackDebug(callbackName) {
+            const token = localStorage.getItem('media_server_token');
+            const dialog = document.getElementById('executionDialog');
+            const title = document.getElementById('executionDialogTitle');
+            const statusDiv = document.getElementById('executionStatus');
+
+            // Show dialog with loading state
+            title.textContent = `Executing: ${callbackName}`;
+            statusDiv.innerHTML = `
+                <div class="status-item">
+                    <label>Status</label>
+                    <value><span class="loading-spinner"></span> Running...</value>
+                </div>
+            `;
+            document.getElementById('outputSection').style.display = 'none';
+            document.getElementById('errorSection').style.display = 'none';
+            document.body.classList.add('dialog-open');
+            dialog.showModal();
+
+            try {
+                // For callbacks, we'll execute them directly via the callback endpoint
+                // We need to trigger the callback as if the event occurred
+                const response = await fetch(`/api/callbacks/execute/${callbackName}`, {
+                    method: 'POST',
+                    headers: {
+                        'Authorization': `Bearer ${token}`,
+                        'Content-Type': 'application/json'
+                    }
+                });
+
+                const result = await response.json();
+
+                if (response.ok) {
+                    showExecutionResult(callbackName, result, 'callback');
+                } else {
+                    showExecutionResult(callbackName, {
+                        success: false,
+                        exit_code: -1,
+                        error: result.detail || 'Execution failed',
+                        stderr: result.detail || 'Unknown error'
+                    }, 'callback');
+                }
+            } catch (error) {
+                console.error(`Error executing callback ${callbackName}:`, error);
+                showExecutionResult(callbackName, {
+                    success: false,
+                    exit_code: -1,
+                    error: error.message,
+                    stderr: `Network error: ${error.message}`
+                }, 'callback');
+            }
+        }
     </script>
 </body>
 </html>

media_server/static/locales/en.json

@@ -64,6 +64,7 @@
   "scripts.msg.load_failed": "Failed to load script details",
   "scripts.msg.list_failed": "Failed to load scripts",
   "scripts.confirm.delete": "Are you sure you want to delete the script \"{name}\"?",
+  "scripts.confirm.unsaved": "You have unsaved changes. Are you sure you want to discard them?",
   "callbacks.management": "Callback Management",
   "callbacks.description": "Callbacks are scripts triggered automatically by media control events (play, pause, stop, etc.)",
   "callbacks.add": "Add",
@@ -105,5 +106,6 @@
   "callbacks.msg.not_found": "Callback not found",
   "callbacks.msg.load_failed": "Failed to load callback details",
   "callbacks.msg.list_failed": "Failed to load callbacks",
-  "callbacks.confirm.delete": "Are you sure you want to delete the callback \"{name}\"?"
+  "callbacks.confirm.delete": "Are you sure you want to delete the callback \"{name}\"?",
+  "callbacks.confirm.unsaved": "You have unsaved changes. Are you sure you want to discard them?"
 }

media_server/static/locales/ru.json

@@ -64,6 +64,7 @@
   "scripts.msg.load_failed": "Не удалось загрузить данные скрипта",
   "scripts.msg.list_failed": "Не удалось загрузить скрипты",
   "scripts.confirm.delete": "Вы уверены, что хотите удалить скрипт \"{name}\"?",
+  "scripts.confirm.unsaved": "У вас есть несохраненные изменения. Вы уверены, что хотите отменить их?",
   "callbacks.management": "Управление Обратными Вызовами",
   "callbacks.description": "Обратные вызовы - это скрипты, автоматически запускаемые при событиях управления медиа (воспроизведение, пауза, остановка и т.д.)",
   "callbacks.add": "Добавить",
@@ -105,5 +106,6 @@
   "callbacks.msg.not_found": "Обратный вызов не найден",
   "callbacks.msg.load_failed": "Не удалось загрузить данные обратного вызова",
   "callbacks.msg.list_failed": "Не удалось загрузить обратные вызовы",
-  "callbacks.confirm.delete": "Вы уверены, что хотите удалить обратный вызов \"{name}\"?"
+  "callbacks.confirm.delete": "Вы уверены, что хотите удалить обратный вызов \"{name}\"?",
+  "callbacks.confirm.unsaved": "У вас есть несохраненные изменения. Вы уверены, что хотите отменить их?"
 }

scripts/restart-server.bat

@@ -0,0 +1,24 @@
+@echo off
+REM Media Server Restart Script
+REM This script restarts the media server
+
+echo Restarting Media Server...
+echo.
+
+REM Stop the server first
+echo [1/2] Stopping server...
+call "%~dp0\stop-server.bat"
+
+REM Wait a moment
+timeout /t 2 /nobreak >nul
+
+REM Change to parent directory (media-server root)
+cd /d "%~dp0\.."
+
+REM Start the server
+echo.
+echo [2/2] Starting server...
+python -m media_server.main
+
+REM If the server exits, pause to show any error messages
+pause

scripts/start-server-background.vbs

@@ -0,0 +1,7 @@
+Set WshShell = CreateObject("WScript.Shell")
+Set FSO = CreateObject("Scripting.FileSystemObject")
+' Get parent folder of scripts folder (media-server root)
+WshShell.CurrentDirectory = FSO.GetParentFolderName(FSO.GetParentFolderName(WScript.ScriptFullName))
+WshShell.Run "python -m media_server.main", 0, False
+Set FSO = Nothing
+Set WshShell = Nothing

scripts/start-server.bat

@@ -0,0 +1,15 @@
+@echo off
+REM Media Server Startup Script
+REM This script starts the media server
+
+echo Starting Media Server...
+echo.
+
+REM Change to the media-server directory (parent of scripts folder)
+cd /d "%~dp0\.."
+
+REM Start the media server
+python -m media_server.main
+
+REM If the server exits, pause to show any error messages
+pause

scripts/stop-server.bat

@@ -0,0 +1,19 @@
+@echo off
+REM Media Server Stop Script
+REM This script stops the running media server
+
+echo Stopping Media Server...
+echo.
+
+REM Find and kill Python processes running media_server.main
+for /f "tokens=2" %%i in ('tasklist /FI "IMAGENAME eq python.exe" /FO LIST ^| findstr /B "PID:"') do (
+    wmic process where "ProcessId=%%i" get CommandLine 2>nul | findstr /C:"media_server.main" >nul
+    if not errorlevel 1 (
+        taskkill /PID %%i /F
+        echo Media server process (PID %%i) terminated.
+    )
+)
+
+echo.
+echo Done! Media server stopped.
+pause