Initial commit: Media server and Home Assistant integration

- FastAPI server for Windows media control via WinRT/SMTC
- Home Assistant custom integration with media player entity
- Script button entities for system commands
- Position tracking with grace period for track skip handling
- Server availability detection in HA entity

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

media_server/config.py

@@ -0,0 +1,141 @@
+"""Configuration management for the media server."""
+
+import os
+import secrets
+from pathlib import Path
+from typing import Optional
+
+import yaml
+from pydantic import BaseModel, Field
+from pydantic_settings import BaseSettings, SettingsConfigDict
+
+
+class ScriptConfig(BaseModel):
+    """Configuration for a custom script."""
+
+    command: str = Field(..., description="Command or script to execute")
+    label: Optional[str] = Field(default=None, description="User-friendly display label")
+    description: str = Field(default="", description="Script description")
+    timeout: int = Field(default=30, description="Execution timeout in seconds", ge=1, le=300)
+    working_dir: Optional[str] = Field(default=None, description="Working directory")
+    shell: bool = Field(default=True, description="Run command in shell")
+
+
+class Settings(BaseSettings):
+    """Application settings loaded from environment or config file."""
+
+    model_config = SettingsConfigDict(
+        env_prefix="MEDIA_SERVER_",
+        env_file=".env",
+        env_file_encoding="utf-8",
+        extra="ignore",
+    )
+
+    # Server settings
+    host: str = Field(default="0.0.0.0", description="Server bind address")
+    port: int = Field(default=8765, description="Server port")
+
+    # Authentication
+    api_token: str = Field(
+        default_factory=lambda: secrets.token_urlsafe(32),
+        description="API authentication token",
+    )
+
+    # Media controller settings
+    poll_interval: float = Field(
+        default=1.0, description="Media status poll interval in seconds"
+    )
+
+    # Logging
+    log_level: str = Field(default="INFO", description="Logging level")
+
+    # Custom scripts (loaded separately from YAML)
+    scripts: dict[str, ScriptConfig] = Field(
+        default_factory=dict,
+        description="Custom scripts that can be executed via API",
+    )
+
+    @classmethod
+    def load_from_yaml(cls, path: Optional[Path] = None) -> "Settings":
+        """Load settings from a YAML configuration file."""
+        if path is None:
+            # Look for config in standard locations
+            search_paths = [
+                Path("config.yaml"),
+                Path("config.yml"),
+            ]
+
+            # Add platform-specific config directory
+            if os.name == "nt":  # Windows
+                appdata = os.environ.get("APPDATA", "")
+                if appdata:
+                    search_paths.append(Path(appdata) / "media-server" / "config.yaml")
+            else:  # Linux/Unix/macOS
+                search_paths.append(Path.home() / ".config" / "media-server" / "config.yaml")
+                search_paths.append(Path("/etc/media-server/config.yaml"))
+
+            for search_path in search_paths:
+                if search_path.exists():
+                    path = search_path
+                    break
+
+        if path and path.exists():
+            with open(path, "r", encoding="utf-8") as f:
+                config_data = yaml.safe_load(f) or {}
+            return cls(**config_data)
+
+        return cls()
+
+
+def get_config_dir() -> Path:
+    """Get the configuration directory path."""
+    if os.name == "nt":  # Windows
+        config_dir = Path(os.environ.get("APPDATA", "")) / "media-server"
+    else:  # Linux/Unix
+        config_dir = Path.home() / ".config" / "media-server"
+
+    config_dir.mkdir(parents=True, exist_ok=True)
+    return config_dir
+
+
+def generate_default_config(path: Optional[Path] = None) -> Path:
+    """Generate a default configuration file with a new API token."""
+    if path is None:
+        path = get_config_dir() / "config.yaml"
+
+    config = {
+        "host": "0.0.0.0",
+        "port": 8765,
+        "api_token": secrets.token_urlsafe(32),
+        "poll_interval": 1.0,
+        "log_level": "INFO",
+        "scripts": {
+            "example_script": {
+                "command": "echo Hello from Media Server!",
+                "description": "Example script - echoes a message",
+                "timeout": 10,
+                "shell": True,
+            },
+            # Add your custom scripts here:
+            # "shutdown": {
+            #     "command": "shutdown /s /t 60",
+            #     "description": "Shutdown computer in 60 seconds",
+            #     "timeout": 5,
+            # },
+            # "lock_screen": {
+            #     "command": "rundll32.exe user32.dll,LockWorkStation",
+            #     "description": "Lock the workstation",
+            #     "timeout": 5,
+            # },
+        },
+    }
+
+    path.parent.mkdir(parents=True, exist_ok=True)
+    with open(path, "w", encoding="utf-8") as f:
+        yaml.dump(config, f, default_flow_style=False, sort_keys=False)
+
+    return path
+
+
+# Global settings instance
+settings = Settings.load_from_yaml()