import { XYRTC } from "./client";
import Logger from "./tools/logger";
import { DeviceTypeMap, IDeviceItem, IDeviceList, ICurrentDevice, DeviceTypeKey } from "./type";
export default class DeviceManager {
    private sdk;
    private logger;
    private deviceList;
    private currentDevice;
    private prevDevice;
    private onCameraChange;
    private onMicrophoneChange;
    private onSpeakerChange;
    constructor(sdk: XYRTC, logger: Logger);
    /**
     * 设备管理初始化，获取设备列表和设置当前使用设备
     *
     * @private
     * @return {*}
     * @memberof DeviceManager
     */
    private initDevice;
    /**
     * 获取设备列表
     *
     * @param {DeviceTypeKey} [type]
     * @return {*}
     * @memberof DeviceManager
     */
    getDeviceList(type?: DeviceTypeKey): IDeviceList | IDeviceItem[];
    /**
     * 获取当前使用的设备
     *
     * @param {DeviceTypeKey} [type]
     * @return {*}
     * @memberof DeviceManager
     */
    getCurrentDevice(type?: DeviceTypeKey): string | ICurrentDevice;
    /**
     * 切换设备
     *
     * @param {DeviceTypeKey} type
     * @param {string} devId
     * @memberof DeviceManager
     */
    switchDevice(type: DeviceTypeKey, devId: string): void;
    /**
     * 监听设备改变
     *
     * @param {DeviceTypeMap} devType
     * @memberof DeviceManager
     */
    onMediaDeviceEvent(devType: DeviceTypeMap): void;
    /**
     * 设备改变处理
     *
     * @private
     * @param {DeviceTypeMap} devType
     * @memberof DeviceManager
     */
    private onDeviceChange;
    /**
     * diff设备列表，找出改变的设备，并切换
     *
     * @private
     * @param {IDeviceItem[]} newDevList 新列表
     * @param {IDeviceItem[]} oldDevList 旧列表
     * @param {DeviceTypeMap} devType 设备改变
     * @memberof DeviceManager
     */
    private diffDeviceList;
}