import Constants from 'expo-constants';

export interface IRTCConfig {
    iceServers: RTCIceServer[];
    maxRetryAttempts: number;
    retryDelayMs: number;
    maxIceCandidateQueueSize: number;
    connectionTimeout: number;
    signaling: {
        serverUrl: string;
        reconnectDelay: number;
        heartbeatInterval: number;
    };
    media: {
        audio: MediaTrackConstraints;
        video: MediaTrackConstraints;
    };
}

export const RTC_CONFIG: IRTCConfig = {
    iceServers: [{ urls: "stun:stun.l.google.com:19302" }],
    maxRetryAttempts: 3,
    retryDelayMs: 2000,
    maxIceCandidateQueueSize: 100,
    connectionTimeout: 30000,
    signaling: {
        serverUrl: `${Constants.expoConfig?.extra?.apiBaseUrl}/ws` || "http://localhost:8080/ws",
        reconnectDelay: 3000,
        heartbeatInterval: 30000,
    },
    media: {
        audio: { echoCancellation: true, noiseSuppression: true },
        video: { width: 1280, height: 720, frameRate: 30 },
    },
} as const;