//
//  NvEditClipLiveWindow.m
//  SDKDemo
//
//  Created by ms20180425 on 2018/8/7.
 //
//

#import "NvEditClipLiveWindow.h"
#import "NvsVideoTrack.h"
#import "NvWeakTimer.h"
#import "NvSDKUtils.h"

@interface NvEditClipLiveWindow() <NvsStreamingContextDelegate> {
    int64_t _rangeIn,_rangeOut;
    int64_t _currentTime;//当前播放的时间
}
@property (nonatomic, strong) NvsTimeline *timeline;
@property (nonatomic, strong) UISlider *progressSlider;
@property (nonatomic, strong) UIView *controlPanelView;
@property (nonatomic, strong) UIButton *playbackBtn;
@property (nonatomic, strong) UILabel *currentTimeLabel;
@property (nonatomic, strong) UIButton *volumnBtn;
@property (nonatomic, strong) UILabel *durationLabel;
@property (nonatomic, strong) NvsStreamingContext *context;
@property (nonatomic, strong) NvWeakTimer *timer;

@end
@implementation NvEditClipLiveWindow

- (void)dealloc {
    NSLog(@"%s",__func__);
    [self pause];
}

- (instancetype)initWithFrame:(CGRect)frame {
    self = [super initWithFrame:frame];
    if (self) {
        self.context = [NvSDKUtils getSDKContext];
        [self addSubviews:frame];
        
    }
    return self;
}

- (void)addSubviews:(CGRect)rect {
    self.liveWindow = [[NvsLiveWindow alloc] initWithFrame:rect];
    [self addSubview:_liveWindow];
    _controlPanelView = [UIView new];
    _controlPanelView.backgroundColor = [UIColor nv_colorWithHexARGB:@"#80000000"];
    [self addSubview:_controlPanelView];
    [_controlPanelView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.right.equalTo(@0);
        make.bottom.equalTo(self.liveWindow);
        make.height.equalTo(@(40 * SCREANSCALE));
    }];
    _playbackBtn = [UIButton new];
    [_playbackBtn setImage:[NvUtils imageWithName:@"NvPlayback"] forState:UIControlStateNormal];
    [_playbackBtn setImage:[NvUtils imageWithName:@"NvPause"] forState:UIControlStateSelected];
    [_controlPanelView addSubview:_playbackBtn];
    [_playbackBtn addTarget:self action:@selector(playButtonClick:) forControlEvents:UIControlEventTouchUpInside];
    [_playbackBtn mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.top.bottom.equalTo(@0);
        make.width.equalTo(self.controlPanelView.mas_height);
    }];
    
    _currentTimeLabel = [UILabel new];
    _currentTimeLabel.text = @"00:00";
    _currentTimeLabel.textColor = [UIColor whiteColor];
    _currentTimeLabel.font = [NvUtils fontWithSize:10];
    CGSize size = [_currentTimeLabel sizeThatFits:CGSizeMake(MAXFLOAT, MAXFLOAT)];
    [_controlPanelView addSubview:_currentTimeLabel];
    [_currentTimeLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(self.playbackBtn.mas_right);
        make.centerY.equalTo(self.controlPanelView);
        make.width.equalTo(@(size.width));
    }];
    
    _durationLabel = [UILabel new];
    _durationLabel.text = @"00:00";
    _durationLabel.textColor = [UIColor whiteColor];
    _durationLabel.font = [NvUtils fontWithSize:10];
    [_controlPanelView addSubview:_durationLabel];
    [_durationLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.right.equalTo(@-13);
        make.centerY.equalTo(self.controlPanelView);
        make.width.equalTo(@(size.width));
    }];
    _progressSlider = [UISlider new];
    [_progressSlider setThumbImage:[NvUtils imageWithName:@"NvSliderHandle"] forState:UIControlStateNormal];
    [_progressSlider setMinimumTrackTintColor:[UIColor nv_colorWithHexARGB:@"#FF4A90E2"]];
    [_progressSlider setMaximumTrackTintColor:[UIColor nv_colorWithHexARGB:@"#FF979797"]];
    [_controlPanelView addSubview:_progressSlider];
    [_progressSlider addTarget:self action:@selector(progressSliderClick:) forControlEvents:UIControlEventValueChanged];
    [_progressSlider mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(self.currentTimeLabel.mas_right).offset(7 * SCREANSCALE);
        make.right.equalTo(self.durationLabel.mas_left).offset(-7 * SCREANSCALE);
        make.centerY.equalTo(self.controlPanelView);
    }];
    UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapLiveWindow:)];
    [self.liveWindow addGestureRecognizer:tap];
}

- (void)setHiddenPanelTimer {
    if (_timer) {
        [_timer invalidate];
        _timer = nil;
    }
    _timer = [NvWeakTimer scheduledTimerWithTimeInterval:3 target:self selector:@selector(hideControlPanel:) userInfo:nil repeats:NO dispatchQueue:dispatch_get_main_queue()];
}

- (void)hideControlPanel:(NSTimer *)timer {
    if (!_controlPanelView.hidden)
        _controlPanelView.hidden = YES;
}

- (void)showControllPanel {
    _controlPanelView.hidden = NO;
    [self setHiddenPanelTimer];
}

- (void)tapLiveWindow:(UITapGestureRecognizer *)tap {
    if (_controlPanelView.hidden) {
        [self showControllPanel];
    } else {
        if (self.context.getStreamingEngineState != NvsStreamingEngineState_Playback) {
            int64_t currentTime = [self.context getTimelineCurrentPosition:self.timeline];
            if (currentTime > _rangeIn && currentTime < _rangeOut) {
                [self.context playbackTimeline:self.timeline startTime:currentTime endTime:_rangeOut videoSizeMode:NvsVideoPreviewSizeModeLiveWindowSize preload:YES flags:0];
            } else {
                [self.context playbackTimeline:self.timeline startTime:_rangeIn endTime:_rangeOut videoSizeMode:NvsVideoPreviewSizeModeLiveWindowSize preload:YES flags:0];
            }
        } else {
            [self.context stop];
        }
        [self setHiddenPanelTimer];
    }
}

- (void)setEditMode:(NvEditMode)editMode {
    _editMode = editMode;
    float liveWindowWidth = self.bounds.size.width;
    float liveWindowHeight = self.bounds.size.height;
    if (_editMode == NvEditMode16v9) {
        liveWindowHeight = liveWindowWidth * 9 / 16;
    } else if (_editMode == NvEditMode1v1) {
        liveWindowHeight = liveWindowWidth;
    } else if (_editMode == NvEditMode9v16) {
        liveWindowWidth = liveWindowHeight * 9 / 16;
    } else if (_editMode == NvEditMode4v3) {
        liveWindowHeight = liveWindowWidth * 3 / 4;
    } else if (_editMode == NvEditMode3v4) {
        liveWindowWidth = liveWindowHeight * 3 / 4;
    }
    _liveWindow.width = liveWindowWidth;
    _liveWindow.height = liveWindowHeight;
    _liveWindow.centerX = self.centerX;
    _liveWindow.centerY = self.centerY;
}

- (void)seekTimeline:(int64_t)pos {
    _currentTime = pos;
    _playbackBtn.selected = NO;
    if (![self.context seekTimeline:_timeline timestamp:pos videoSizeMode:NvsVideoPreviewSizeModeLiveWindowSize flags:NvsStreamingEngineSeekFlag_ShowCaptionPoster | NvsStreamingEngineSeekFlag_ShowAnimatedStickerPoster])
        NSLog(@"Failed to seek timeline!");
    //控制slider
    int64_t duration = self.timeline.duration;
    _progressSlider.value = pos*1.0/duration;
    //更改label
    _currentTimeLabel.text = [NvUtils convertTimecode:pos];
    _durationLabel.text = [NvUtils convertTimecode:duration];
}

- (void)setPlayRangeIn:(int64_t)rangeIn rangeOut:(int64_t)rangeOut {
    _rangeIn = rangeIn;
    _rangeOut = rangeOut;
}

- (void)playButtonClick:(UIButton *)button {
    if (button.isSelected) {
        [self pause];
        button.selected = NO;
    } else {
        [self play];
        button.selected = YES;
    }
}

- (void)play {
    _isPause = NO;
    _playbackBtn.selected = YES;
    int64_t startTime = 0;
    //播放的当前位置大于范围的起始位置直接从当前位置播放
    if (_currentTime > _rangeIn && _currentTime < _rangeOut) {
        startTime = _currentTime;
    } else if (_currentTime > _rangeOut) {//当前时间大于out值时从in值开始播放
        startTime = _rangeIn;
    } else {//播放的当前位置小于范围的起始位置直接从播放范围的起始位置播放
        startTime = _rangeIn;
    }
    [self.context playbackTimeline:_timeline startTime:startTime endTime:_rangeOut videoSizeMode:NvsVideoPreviewSizeModeLiveWindowSize preload:YES flags:NvsStreamingEngineSeekFlag_ShowCaptionPoster | NvsStreamingEngineSeekFlag_ShowAnimatedStickerPoster];
    
    [self setHiddenPanelTimer];
}

- (void)pause {
    _isPause = YES;
    [self seekTimeline:_currentTime];
}

- (void)connectTimeline:(NvsTimeline *)timeline {
    if (![self.context connectTimeline:timeline withLiveWindow:_liveWindow]) {
        NSLog(@"连接预览窗口失败！");
        return;
    }
    _timeline = timeline;
    self.context.delegate = self;
}
//拖动滑杆
- (void)progressSliderClick:(UISlider *)slider {
    [self seekTimeline:slider.value*(self.timeline.duration)];
}

// MARK: Context回调
- (void)didPlaybackTimelinePosition:(NvsTimeline *)timeline position:(int64_t)position {
    _currentTime = position;
    self.playbackBtn.selected = YES;
    //在播放过程中滑动右边rangeOut当前播放会播到out值外面
    //做如下判断
    if (_currentTime>_rangeOut +1) {
        _currentTime = _rangeIn;
        [self seekTimeline:_currentTime];
        [self play];
    }
    //控制slider
    int64_t duration = self.timeline.duration;
    self.progressSlider.value = position*1.0/duration;
    self.currentTimeLabel.text = [NvUtils convertTimecode:position];
    if ([self.delegate respondsToSelector:@selector(didPlaybackTimelinePosition:position:)]) {
        [self.delegate didPlaybackTimelinePosition:timeline position:position];
    }
}

- (void)didPlaybackStopped:(NvsTimeline *)timeline {
    self.playbackBtn.selected = NO;
    if ([self.delegate respondsToSelector:@selector(didPlaybackStopped:)]) {
        [self.delegate didPlaybackStopped:timeline];
    }
}

- (void)didPlaybackEOF:(NvsTimeline *)timeline {
    [self setHiddenPanelTimer];
    if (_rangeOut == self.timeline.duration) {
        [self.progressSlider setValue:1 animated:YES];
    }
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        self->_currentTime = self->_rangeIn+1;
        [self seekTimeline:self->_rangeIn+1];
        [self play];
        if ([self.delegate respondsToSelector:@selector(didPlaybackEOF:)]) {
            [self.delegate didPlaybackEOF:timeline];
        }
    });
}


@end
