#import "React/RCTConvert.h"
#import "RCTVLCPlayer.h"
#import "React/RCTBridgeModule.h"
#import "React/RCTEventDispatcher.h"
#import "React/UIView+React.h"
#import <MobileVLCKit/MobileVLCKit.h>
#import <AVFoundation/AVFoundation.h>
static NSString *const statusKeyPath = @"status";
static NSString *const playbackLikelyToKeepUpKeyPath = @"playbackLikelyToKeepUp";
static NSString *const playbackBufferEmptyKeyPath = @"playbackBufferEmpty";
static NSString *const readyForDisplayKeyPath = @"readyForDisplay";
static NSString *const playbackRate = @"rate";

@interface RCTVLCPlayer () <VLCMediaPlayerDelegate,VLCMediaDelegate>
@end

@implementation RCTVLCPlayer
{
    /* Required to publish events */
    RCTEventDispatcher *_eventDispatcher;
    VLCMediaPlayer *_player;

    NSDictionary * _source;
    BOOL _paused;
    BOOL _started;
}

- (instancetype)initWithEventDispatcher:(RCTEventDispatcher *)eventDispatcher
{
    if ((self = [super init])) {
        _eventDispatcher = eventDispatcher;

        [[NSNotificationCenter defaultCenter] addObserver:self
                                                 selector:@selector(applicationWillResignActive:)
                                                     name:UIApplicationWillResignActiveNotification
                                                   object:nil];

        [[NSNotificationCenter defaultCenter] addObserver:self
                                                 selector:@selector(applicationWillEnterForeground:)
                                                     name:UIApplicationWillEnterForegroundNotification
                                                   object:nil];

    }

    return self;
}

- (void)applicationWillResignActive:(NSNotification *)notification
{
    if (!_paused) {
        [self setPaused:_paused];
    }
}

- (void)applicationWillEnterForeground:(NSNotification *)notification
{
    [self applyModifiers];
}

- (void)applyModifiers
{
    if(!_paused)
        [self play];
}

- (void)setPaused:(BOOL)paused
{
    if(_player){
        if(!paused){
            [self play];
        }else {
            [_player pause];
            _paused =  YES;
            _started = NO;
        }
    }
}

- (void)play
{
    if(_player){
        [_player play];
        _paused = NO;
        _started = YES;
    }
}

- (void)setResume:(BOOL)autoplay
{
    @try{
        char * videoRatio = nil;
        if(_player){
            videoRatio = _player.videoAspectRatio;
            [_player stop];
            _player = nil;
        }
        NSMutableDictionary* mediaOptions = [_source objectForKey:@"mediaOptions"];
        NSArray* options = [_source objectForKey:@"initOptions"];
        NSString* uri    = [_source objectForKey:@"uri"];
        NSInteger initType = [RCTConvert NSInteger:[_source objectForKey:@"initType"]];
        BOOL autoplay = [RCTConvert BOOL:[_source objectForKey:@"autoplay"]];
        BOOL isNetWork   = [RCTConvert BOOL:[_source objectForKey:@"isNetwork"]];
        NSURL* _uri    = [NSURL URLWithString:uri];
        if(uri && uri.length > 0){
            //init player && play
            if(initType == 2){
                _player = [[VLCMediaPlayer alloc] initWithOptions:options];
            }else{
                _player = [[VLCMediaPlayer alloc] init];
            }
            [_player setDrawable:self];
            _player.delegate = self;
            _player.scaleFactor = 0;
            //设置缓存多少毫秒
            // [mediaDictonary setObject:@"1500" forKey:@"network-caching"];
            VLCMedia *media = nil;
            media = [VLCMedia mediaWithURL:_uri];
//             if(isNetWork){
//                 media = [VLCMedia mediaWithURL:_uri];
//             }else{
//                 media = [VLCMedia mediaWithPath: uri];
//             }
            media.delegate = self;
            if(mediaOptions){
                [media addOptions:mediaOptions];
            }
            /*if(videoRatio){
                _player.videoAspectRatio = videoRatio;
            }*/
            [media parseWithOptions:VLCMediaParseLocal|VLCMediaFetchLocal|VLCMediaParseNetwork|VLCMediaFetchNetwork];
            _player.media = media;
            if(autoplay)
                [self play];
            if(self.onVideoLoadStart){
                self.onVideoLoadStart(@{
                                        @"target": self.reactTag
                                        });
            }
        }
    }
    @catch(NSException *exception){
        NSLog(@"%@", exception);
    }
}

-(void)setSource:(NSDictionary *)source
{
    @try{
        if(_player){
            [_player stop];
            _player = nil;
        }
        _source = source;
        NSMutableDictionary* mediaOptions = [source objectForKey:@"mediaOptions"];
        NSArray* options = [source objectForKey:@"initOptions"];
        NSString* uri    = [source objectForKey:@"uri"];
        NSString* userAgent    = [source objectForKey:@"userAgent"];
        NSInteger initType = [RCTConvert NSInteger:[source objectForKey:@"initType"]];
        BOOL autoplay = [RCTConvert BOOL:[source objectForKey:@"autoplay"]];
        BOOL isNetWork   = [RCTConvert BOOL:[source objectForKey:@"isNetwork"]];
        NSURL* _uri    = [NSURL URLWithString:uri];
        if(uri && uri.length > 0){
            //init player && play
            if(initType == 2){
                _player = [[VLCMediaPlayer alloc] initWithOptions:options];
            }else{
                _player = [[VLCMediaPlayer alloc] init];
            }
            if (userAgent.length > 0) {
                [_player.libraryInstance setHumanReadableName:[userAgent stringByReplacingOccurrencesOfString:@"/" withString:@" "] withHTTPUserAgent:userAgent];
            }

            [_player setDrawable:self];
            _player.delegate = self;
            _player.scaleFactor = 0;

            // [mediaDictonary setObject:@"1500" forKey:@"network-caching"];
            VLCMedia *media = nil;
            media = [VLCMedia mediaWithURL:_uri];
//             if(isNetWork){
//                 media = [VLCMedia mediaWithURL:_uri];
//             }else{
//                 media = [VLCMedia mediaWithPath: uri];
//             }
            if(media){
                media.delegate = self;
                if(mediaOptions){
                    [media addOptions:mediaOptions];
                }
                [media parseWithOptions:VLCMediaParseLocal|VLCMediaFetchLocal|VLCMediaParseNetwork|VLCMediaFetchNetwork];
                 _player.media = media;
            }
            if(autoplay)
                [self play];
            if(self.onVideoLoadStart){
                self.onVideoLoadStart(@{
                                       @"target": self.reactTag
                                       });
            }
        }
    }
    @catch(NSException *exception){
          NSLog(@"%@", exception);
    }
}

- (void)mediaPlayerSnapshot:(NSNotification *)aNotification{
     NSLog(@"userInfo %@",[aNotification userInfo]);
    self.onSnapshot(@{
                      @"target": self.reactTag,
                      @"success": [NSNumber numberWithInt:1],
                    });
}


- (void)mediaMetaDataDidChange:(VLCMedia *)aMedia{
    NSLog(@"mediaMetaDataDidChange");
    NSInteger readBytes = aMedia.numberOfReadBytesOnInput;
    NSLog(@"readBytes %zd", readBytes);
    BOOL isPlaying = _player.isPlaying;
    BOOL hasVideoOut = _player.hasVideoOut;
    self.onVideoStateChange(@{
                              @"target": self.reactTag,
                              @"isPlaying": [NSNumber numberWithBool: isPlaying],
                              @"hasVideoOut": [NSNumber numberWithBool: hasVideoOut],
                              @"type": @"mediaMetaDataDidChange",
                              });
}

- (void)mediaDidFinishParsing:(VLCMedia *)aMedia
{
    NSLog(@"mediaDidFinishParsing");
    BOOL isPlaying = _player.isPlaying;
    BOOL hasVideoOut = _player.hasVideoOut;
    self.onVideoStateChange(@{
                              @"target": self.reactTag,
                              @"isPlaying": [NSNumber numberWithBool: isPlaying],
                              @"hasVideoOut": [NSNumber numberWithBool: hasVideoOut],
                              @"type": @"mediaDidFinishParsing",
                              });
    //NSLog(@"readBytes %zd", readBytes);
}

- (void)mediaPlayerTimeChanged:(NSNotification *)aNotification
{
    VLCMediaPlayer *currentPlayer = (VLCMediaPlayer *)aNotification.object;
    [self updateVideoProgress:currentPlayer];
}

- (void)mediaPlayerStateChanged:(NSNotification *)aNotification
{
    @try{
    VLCMediaPlayer *currentPlayer = (VLCMediaPlayer *)aNotification.object;

        if(currentPlayer){

            BOOL isPlaying = currentPlayer.isPlaying;
            BOOL hasVideoOut = currentPlayer.hasVideoOut;

            VLCMediaPlayerState state = currentPlayer.state;
            CGSize videoSize =  currentPlayer.videoSize;
            int height = videoSize.height;
            int width = videoSize.width;
            BOOL willPlay = currentPlayer.willPlay;

            int currentTime   = [[currentPlayer time] intValue];
            int remainingTime = [[currentPlayer remainingTime] intValue];
            int duration      = [currentPlayer.media.length intValue];

            NSString *currentTimeString   = [[currentPlayer time] stringValue];
            NSString *remainingTimeString = [[currentPlayer remainingTime] stringValue];
            NSString *durationString      = [currentPlayer.media.length stringValue];
            CGFloat sliderValue = (CGFloat)currentTime / (CGFloat)duration;

            self.onVideoStateChange(@{
                                              @"type": VLCMediaPlayerStateToString(state),
                                              @"target": self.reactTag,
                                              @"hasVideoOut": [NSNumber numberWithBool: hasVideoOut],
                                              @"videoWidth":[NSNumber numberWithInt:width],
                                              @"videoHeight":[NSNumber numberWithInt:height],
                                              @"willPlay":[NSNumber numberWithBool:willPlay],
                                              @"seekable": [NSNumber numberWithBool:[currentPlayer isSeekable]],

                                              @"currentTime": [NSNumber numberWithInt:currentTime],
                                              @"remainingTime": [NSNumber numberWithInt:remainingTime],
                                              @"duration":[NSNumber numberWithInt:duration],
                                              @"currentTimeString": currentTimeString,
                                              @"remainingTimeString": remainingTimeString,
                                              @"durationString": durationString,
                                              @"sliderValue": [NSNumber numberWithFloat:sliderValue],
                                              @"position":[NSNumber numberWithFloat:currentPlayer.position],
                                              @"isPlaying": [NSNumber numberWithBool:isPlaying],
                                              });
        }
    }@catch(NSException *exception){
        NSLog(@"%@", exception);
    }
}

-(void)updateVideoProgress:(VLCMediaPlayer *)currentPlayer
{   @try{
        if(currentPlayer){
            int currentTime   = [[currentPlayer time] intValue];
            int remainingTime = [[currentPlayer remainingTime] intValue];
            int duration      = [currentPlayer.media.length intValue];

            NSString *currentTimeString   = [[currentPlayer time] stringValue];
            NSString *remainingTimeString = [[currentPlayer remainingTime] stringValue];
            NSString *durationString      = [currentPlayer.media.length stringValue];
            CGFloat sliderValue = (CGFloat)currentTime / (CGFloat)duration;

            self.onVideoProgress(@{ @"target": self.reactTag,
                                                   @"currentTime": [NSNumber numberWithInt:currentTime],
                                                   @"remainingTime": [NSNumber numberWithInt:remainingTime],
                                                   @"duration":[NSNumber numberWithInt:duration],

                                                    @"currentTimeString": currentTimeString,
                                                    @"remainingTimeString": remainingTimeString,
                                                    @"durationString": durationString,
                                                    @"sliderValue": [NSNumber numberWithFloat:sliderValue],


                                                   @"position":[NSNumber numberWithFloat:currentPlayer.position],
                                                   @"isPlaying": [NSNumber numberWithBool: currentPlayer.isPlaying],
                                                   });
        }
    }
    @catch(NSException *exception){
        NSLog(@"%@", exception);
    }
}

- (void)setJumpBackward:(int)interval
{
    if(interval>=0 && interval <= [_player.media.length intValue]) {
        [_player jumpBackward:interval];
    }
}

- (void)setJumpForward:(int)interval
{
    if(interval>=0 && interval <= [_player.media.length intValue]) {
        [_player jumpForward:interval];
    }
}

/**
 * audio  -----> start
 */
- (void)setMuted:(BOOL)muted
{
    if(_player){
        VLCAudio *audio = _player.audio;
        [audio setMuted: muted];
    }
}

- (void)setVolume:(int)interval
{
    if(_player){
        VLCAudio *audio = _player.audio;
        if(interval >= 0){
            audio.volume = interval;
        }
    }
}

- (void)setVolumeDown:(int)volume
{
    if(_player){

        VLCAudio *audio = _player.audio;
        [audio volumeDown];
    }
}

- (void)setVolumeUp:(int)volume
{
    if(_player){
        VLCAudio *audio = _player.audio;
        [audio volumeUp];
    }
}
//audio  -----> end

- (void)setSeek:(float)pos
{
    if(_player != nil && [_player isSeekable]){
        [_player setPosition:pos];

    }
}

- (void)setSeekTime:(int)time{
    if(_player){
         VLCTime *time = [VLCTime timeWithInt:(time)];
        [_player setTime:time];
    }
}

- (void)setSnapshotPath:(NSString*)path
{
    if(_player)
        [_player saveVideoSnapshotAt:path withWidth:0 andHeight:0];
}

- (void)setRate:(float)rate
{
    [_player setRate:rate];
}

- (void)setClear:(float)clear
{
    [self _release];
}


- (void)setVideoAspectRatio:(NSString *)ratio{
    if(ratio != nil && ratio.length > 0){
        char *char_content = [ratio cStringUsingEncoding:NSASCIIStringEncoding];
        [_player setVideoAspectRatio:char_content];
    }
}

- (void)_release
{
    if(_player){
        [_player stop];
        _player = nil;
        _eventDispatcher = nil;
    }
    [[NSNotificationCenter defaultCenter] removeObserver:self];
}

- (void)dealloc{
     [self _release];
}
#pragma mark - Lifecycle

- (void)removeFromSuperview
{
    NSLog(@"removeFromSuperview");
    [self _release];
    [super removeFromSuperview];
}

@end