//
//  RTCManager.m
//  YUMI
//
//  Created by zu on 2021/10/19.
//

#import "RtcManager.h"
#import "RtcImplDelegate.h"
#import "TRTCRtcImpl.h"

UIKIT_EXTERN NSString * kRoomBackMusicAudioMixingVolumeKey;
UIKIT_EXTERN NSString * kRoomBackMusicCaptureVolumeKey;

@interface RtcManager()<RtcImplDelegate>

@property (nonatomic, strong) id<RtcInterface> engine;
@property (nonatomic, weak) id<RtcDelegate> engineDelegate;
@property (nonatomic, assign) RtcEngineType engineType;
/**
 * 当前 Rtc 所在的房间 roomUid 。
 */
@property(nonatomic, strong) NSString * enterdRoomUid;

@end

@implementation RtcManager

+ (instancetype)instance {
    static dispatch_once_t onceToken;
    static RtcManager *instance = nil;
    dispatch_once(&onceToken,^{
        instance = [[self alloc] init];
    });
    return instance;
}

- (instancetype)init {
    self = [super init];
    if (self) {
        _localMuted = NO;
        _remoteMuted = NO;
        _engineType = RtcEngineType_TRTC;
    }
    return self;
}

+ (instancetype)initEngineWithType:(RtcEngineType)type delegate:(id<RtcDelegate> _Nullable)delegate {
    RtcManager* rtcManager = [self instance];
    [rtcManager setEngineType:type];
    [rtcManager setEngineDelegate:delegate];
    return rtcManager;
}

- (BOOL)enterRoom:(NSString *)roomUid {
    if (self.enterdRoomUid && [self.enterdRoomUid isEqualToString:roomUid]) {
        return YES;
    }
    return [self.engine joinChannel:roomUid completion:^{
        [self muteRemote:NO];
        [self muteLocal:NO];
        self.enterdRoomUid = roomUid;
    }];
}

- (BOOL)enterRoom:(NSString *)roomUid trtcSign:(nonnull NSString *)sign {
    if (self.enterdRoomUid && [self.enterdRoomUid isEqualToString:roomUid]) {
        return YES;
    }
    return [self.engine joinChannel:roomUid sign:sign completion:^{
        [self muteRemote:NO];
        [self muteLocal:NO];
        self.enterdRoomUid = roomUid;
    }];
}

- (BOOL)muteRemote:(BOOL)mute {
    return [self.engine muteRemote:mute];
}

- (void)broadcast:(BOOL)on {
    [self.engine broadcast:on];
    if (on) {
        [self.engine muteLocal:self.isLocalMuted];
    }
}

- (BOOL)muteLocal:(BOOL)mute {
    return [self.engine muteLocal:mute];
}

- (void)exitRoom {
    @kWeakify(self);
    [self.engine exitChannel:^{
        @kStrongify(self);
        if (self) {
            [self muteRemote:NO];
            [self muteLocal:NO];
            self.enterdRoomUid = nil;
        }
    }];
}

///发起跨房通话
- (void)connectOtherRoom:(NSString *)roomUid userId:(NSString *)uid {
    [self.engine broadcast:YES];
    [self.engine connectOtherRoom:roomUid userId:uid];
}

///退出跨房通话
- (void)disconnectOtherRoom {
    [self.engine disconnectOtherRoom];
}

/// 静音某个人
/// @param userId 用户id
- (void)muteOne:(BOOL)mute userId:(NSString *)userId {
    [self.engine muteRemote:mute userId:userId];
}

- (void)destory {
    [self.engine destory];
}

/// 播放背景音乐
/// @param filePath 音频文件的地址
/// @param musicId TRTC自己要的
- (BOOL)playBackMusic:(NSString *)filePath musicId:(int)musicId completion:(void (^)(NSString *))completion{
	return [self.engine playBackMusic:filePath musicId:musicId completion:completion];
}

/// 改变播放器的状态
/// @param state 播放状态
- (BOOL)changePlayState:(BackMusicPlayState)state {
	return [self.engine changePlayState:state];
}

///背景音乐的音量大小
- (void)updateMusicSound:(int)soundVol {
    [[NSUserDefaults standardUserDefaults] setInteger:soundVol forKey:kRoomBackMusicAudioMixingVolumeKey];
    [[NSUserDefaults standardUserDefaults] synchronize];
	[self.engine updateMusicSound:soundVol];
}

///背景人声的音量大小
- (void)updateUserSound:(int)soundVol {
    [[NSUserDefaults standardUserDefaults] setInteger:soundVol forKey:kRoomBackMusicCaptureVolumeKey];
    [[NSUserDefaults standardUserDefaults] synchronize];
	[self.engine updateUserSound:soundVol];
}

- (void)updateUserSoundWithUserInMic:(int)soundVol {
    [self.engine updateUserSound:soundVol];
}

- (NSInteger)loadUserSound {
    // 查询 recEngine 的人声音量，如果没有数据，则设置为默认值 50
    if ([self.engine loadUserSound] == 0) {
        [self updateUserSound:50];
        return [[NSUserDefaults standardUserDefaults] integerForKey:kRoomBackMusicCaptureVolumeKey];
    }
    return [self.engine loadUserSound];
}

- (void)usersSpeaking:(NSMutableArray *)uids {
    if (self.engineDelegate) {
        [self.engineDelegate usersSpeaking:uids];
    }
}

- (void)setRemoteMuted:(BOOL)remoteMuted {
    if ([self.engine muteRemote:remoteMuted]) {
        _remoteMuted = remoteMuted;
    }
}

- (void)setLocalMuted:(BOOL)localMuted {
    if ([self.engine muteLocal:localMuted]) {
        _localMuted = localMuted;
    }
}

- (void)setEngineType:(RtcEngineType)type {
    if (_engine && type != _engineType) {
        [_engine exitChannel:nil];
        [_engine destory];
        _engine = nil;
        _enterdRoomUid = nil;
    }
    _engineType = type;
}

- (void)setEngineDelegate:(id<RtcDelegate>)delegate {
    _engineDelegate = delegate;
}

- (void)updateDelegate:(id<RtcDelegate> _Nullable)delegate {
    _engineDelegate = delegate;
}

- (id<RtcInterface>)engine {
    if (!_engine) {
        _engine = [[TRTCRtcImpl alloc] initWithDelegate:self];
    }
    return _engine;
}

@end