implement settings support

settings.ts

@@ -0,0 +1,45 @@
+import fs from "node:fs";
+import { parse } from "yaml";
+
+interface HttpServerConfig {
+  port: number;
+}
+
+interface LoggingConfig {
+  level: string;
+  use_color?: boolean;
+}
+
+interface CameraConfig {
+  alias?: string;
+  rotate?: number;
+  mirror?: boolean;
+  audio?: boolean;
+  fix_packet_loss?: boolean;
+}
+
+interface AppConfig {
+  http_server: HttpServerConfig;
+  logging: LoggingConfig;
+  cameras: Record<string, CameraConfig>;
+  discovery_ips: string[];
+  blacklisted_ips: string[];
+}
+
+const DefaultConfig: AppConfig = {
+  http_server: { port: 5000 },
+  logging: { level: "info" },
+  cameras: {},
+  discovery_ips: ["192.168.1.255"],
+  blacklisted_ips: [],
+};
+
+let config = DefaultConfig;
+
+export const loadConfig = (path: string) => {
+  const data = fs.readFileSync(path, { encoding: "utf-8" });
+  config = parse(data) as AppConfig;
+  config = { ...DefaultConfig, ...config };
+};
+
+export { config };