//
//  PBRecordingView.m
//  IphoneBIMe
//
//  Created by zjf on 2019/1/3.
//  Copyright © 2019 ProBIM. All rights reserved.
//

#import "PBRecordingView.h"
#import <AVFoundation/AVFoundation.h>
#import "ConvertAudioFile.h"
#define ETRECORD_RATE 11025.0

@interface PBRecordingView()
//时间记录
@property (nonatomic, strong) UILabel *timeL;
//录音机
@property (nonatomic, strong) AVAudioRecorder *recorder;
//每秒60次
@property (nonatomic, strong) CADisplayLink *displayLink;
//录音计数
@property (nonatomic, assign) NSInteger recordingTimer;
@property (nonatomic, assign) NSInteger totalTime;
//录音路径
@property (nonatomic, copy) NSString *recordingCafPath;
//记录右侧按钮状态
@property (nonatomic, assign) BOOL isComplete;
@end
@implementation PBRecordingView
- (instancetype)initWithFrame:(CGRect)frame {
    if (self = [super initWithFrame:frame]) {
        [self setupUI];
    }
    return self;
}
- (void)setupUI {
    self.backgroundColor = [UIColor colorWithWhite:0 alpha:0.3];
    UIView *toolsView = [[UIView alloc] init];
    toolsView.backgroundColor = [UIColor whiteColor];
    toolsView.layer.cornerRadius = 10.0f;
    [toolsView.layer setMasksToBounds:YES];
    [self addSubview:toolsView];
    [toolsView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.center.equalTo(self);
        make.size.mas_equalTo(CGSizeMake(317, 166));
    }];

    UILabel *promptL = [UILabel z_labelWithText:@"提示：仅可上传一条语音，最多60秒" Color:TitleColor isBold:NO Font:14];
    [self addSubview:promptL];
    [promptL mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(toolsView).offset(20);
        make.centerX.equalTo(toolsView);
        make.height.equalTo(@20);
    }];

    UILabel *countdownL = [UILabel z_labelWithText:@"倒计时" Color:TitleColor isBold:NO Font:16];
    [self addSubview:countdownL];
    [countdownL mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(toolsView).offset(98);
        make.top.equalTo(toolsView).offset(72);
        make.size.mas_equalTo(CGSizeMake(57, 22));
    }];
    self.timeL = [UILabel z_labelWithText:@"60 S" Color:TitleColor isBold:YES Font:20];
    [self addSubview:self.timeL];
    [self.timeL mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerY.equalTo(countdownL);
        make.left.equalTo(countdownL.mas_right).offset(20);
        make.height.equalTo(@28);
    }];
    UIView *linView = [[UIView alloc] init];
    linView.backgroundColor = PBColor(208, 211, 218);
    [self addSubview:linView];
    [linView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(toolsView).offset(115);
        make.left.right.equalTo(toolsView);
        make.height.equalTo(@1);
    }];
    UIView *lin2View = [[UIView alloc] init];
    lin2View.backgroundColor = PBColor(208, 211, 218);
    [self addSubview:lin2View];
    [lin2View mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(linView.mas_bottom);
        make.bottom.equalTo(toolsView);
        make.centerX.equalTo(toolsView);
        make.width.equalTo(@1);
    }];
    
    UIButton *cancelBtn = [UIButton z_textButton:@"取消" fontSize:20 normalColor:IndicatedColor];
    [cancelBtn addTarget:self action:@selector(cancelInterAction) forControlEvents:UIControlEventTouchUpInside];
    [self addSubview:cancelBtn];
    [cancelBtn mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(linView.mas_bottom);
        make.left.bottom.equalTo(toolsView);
        make.right.equalTo(lin2View.mas_left);
    }];
    
    UIButton *endBtn = [UIButton z_textButton:@"开始" fontSize:20 normalColor:IndicatedColor];
    [endBtn addTarget:self action:@selector(endAction:) forControlEvents:UIControlEventTouchUpInside];
    [self addSubview:endBtn];
    [endBtn mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(linView.mas_bottom);
        make.right.bottom.equalTo(toolsView);
        make.left.equalTo(lin2View.mas_right);
    }];
}
//定时器
- (void)updateMeters{
    self.recordingTimer ++;
    NSInteger seconds = self.recordingTimer / 60;
    NSInteger countdown = self.totalTime - seconds;
    if (countdown == 0) {
        [self.recorder stop];
        [self.displayLink invalidate];
        [self cleanCafFile];
        if (self.endRecordingBlock) {
            NSString *mp3Path = [_recordingCafPath stringByReplacingOccurrencesOfString:@"caf" withString:@"mp3"];
            self.endRecordingBlock([mp3Path lastPathComponent]);
        }
        [self removeFromSuperview];
    }
    self.timeL.text = [NSString stringWithFormat:@"%zd S",countdown];
}
- (void)cleanCafFile {
    NSFileManager *fileManager=[NSFileManager defaultManager];
    BOOL isDir = FALSE;
    BOOL isDirExist = [fileManager fileExistsAtPath:_recordingCafPath isDirectory:&isDir];
    if (isDirExist) {
        [fileManager removeItemAtPath:_recordingCafPath error:nil];
    }
}
- (void)cleanMp3File {
    NSString *recordingMp3Path = [_recordingCafPath stringByReplacingOccurrencesOfString:@"caf" withString:@"mp3"];
    NSFileManager *fileManager=[NSFileManager defaultManager];
    BOOL isDir = FALSE;
    BOOL isDirExist = [fileManager fileExistsAtPath:recordingMp3Path isDirectory:&isDir];
    if (isDirExist) {
        [fileManager removeItemAtPath:recordingMp3Path error:nil];
    }
}
//取消录音
- (void)cancelInterAction {
    if (self.isComplete) {
        [self.recorder stop];
        [self.displayLink invalidate];
        [self cleanCafFile];
        [self cleanMp3File];
    }
    [self removeFromSuperview];
}

// 开始/完成录音
- (void)endAction:(UIButton *)button {
    if (self.isComplete) {
        [self.recorder stop];
        [[ConvertAudioFile sharedInstance] sendEndRecord];
        [self.displayLink invalidate];
        [self cleanCafFile];
        if (self.endRecordingBlock) {
            NSString *mp3Path = [_recordingCafPath stringByReplacingOccurrencesOfString:@"caf" withString:@"mp3"];
            self.endRecordingBlock([mp3Path lastPathComponent]);
        }
        [self removeFromSuperview];
    }else {
        [button setTitle:@"完成" forState:UIControlStateNormal];
        self.totalTime = 60;
        AVAudioSession *audioSession = [AVAudioSession sharedInstance];
        [audioSession setCategory:AVAudioSessionCategoryRecord error:nil];
        [self.recorder record];
        //转换MP3格式
        [[ConvertAudioFile sharedInstance] conventToMp3WithCafFilePath:_recordingCafPath mp3FilePath:[_recordingCafPath stringByReplacingOccurrencesOfString:@"caf" withString:@"mp3"] sampleRate:ETRECORD_RATE];
        self.displayLink = [CADisplayLink displayLinkWithTarget:self selector:@selector(updateMeters)];
        [self.displayLink addToRunLoop:[NSRunLoop currentRunLoop] forMode:NSRunLoopCommonModes];
        self.isComplete = YES;
    }
}
#pragma mark - 懒加载
- (AVAudioRecorder *)recorder {
    if (_recorder == nil) {
        NSDateFormatter * formatter = [[NSDateFormatter alloc ] init];
        [formatter setDateFormat:@"YYYYMMddHHmmssSSS"];
        NSString *date = [formatter stringFromDate:[NSDate date]];
        NSString *recordingName = [NSString stringWithFormat:@"%@.caf",date];
        
        AVAudioSession *session = [AVAudioSession sharedInstance];
        NSError *sessionError;
        [session setCategory:AVAudioSessionCategoryPlayAndRecord error:&sessionError];
        if(session == nil) {
            NSLog(@"Error creating session: %@", [sessionError description]);
        } else {
            [session setActive:YES error:nil];
        }
        //设置录音输出路径
        _recordingCafPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES).lastObject stringByAppendingPathComponent:recordingName];
        NSLog(@"=======%@", _recordingCafPath);
        
        // 2.录音参数设置
        NSMutableDictionary *settingDictM = [NSMutableDictionary dictionary];
        [settingDictM setObject:@(kAudioFormatLinearPCM) forKey:AVFormatIDKey];
        [settingDictM setObject:@(ETRECORD_RATE) forKey:AVSampleRateKey];
        [settingDictM setObject:@(2) forKey:AVNumberOfChannelsKey];
        [settingDictM setObject:@(16) forKey:AVLinearPCMBitDepthKey];
        [settingDictM setObject:[NSNumber numberWithInt:AVAudioQualityMin] forKey:AVEncoderAudioQualityKey];
        
        //创建录音机
        NSError *error=nil;
        _recorder = [[AVAudioRecorder alloc]initWithURL:[NSURL fileURLWithPath:_recordingCafPath] settings:settingDictM error:&error];
        //        _recorder.delegate = self;
        _recorder.meteringEnabled = YES;//如果要监控声波则必须设置为YES
        [_recorder prepareToRecord];
        if (error) {
            NSLog(@"创建录音机对象时发生错误，错误信息：%@",error.localizedDescription);
            return nil;
        }
    }
    return _recorder;
}


/*
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect {
    // Drawing code
}
*/

@end