//
//  FKProCountDownView.m
//  FirstLink
//
//  Created by ascii on 2016/11/14.
//  Copyright © 2016年 FirstLink. All rights reserved.
//

#import "FKProCountDownView.h"


@implementation FKTimeUnitView

- (instancetype)init {
    self = [super init];
    if (self) {
        self.layer.cornerRadius = 3;
        self.clipsToBounds = YES;
        self.backgroundColor = UIColorFromRGB(0xff2c6b);
        
        [self addSubview:self.timeLabel];
        [self.timeLabel mas_makeConstraints:^(MASConstraintMaker *make) {
            make.center.equalTo(self);
        }];
    }
    return self;
}

- (UILabel *)timeLabel {
    if (_timeLabel == nil) {
        _timeLabel = [[UILabel alloc]init];
        _timeLabel.textColor = UIColorFromRGB(0xffffff);
        _timeLabel.font = [UIFont systemFontOfSize:13];
        _timeLabel.textAlignment = NSTextAlignmentCenter;
    }
    return _timeLabel;
}

@end

@interface FKProCountDownView ()

@property (nonatomic, strong) FKTimeUnitView *dayUnitView;
@property (nonatomic, strong) FKTimeUnitView *hourUnitView;
@property (nonatomic, strong) FKTimeUnitView *minuteUnitView;
@property (nonatomic, strong) FKTimeUnitView *secondsUnitView;

@property (nonatomic, assign) NSTimeInterval totalTime;
@property (nonatomic, assign) NSTimeInterval elapseTime;
@property (nonatomic, strong) NSTimer *timer;

@end

@implementation FKProCountDownView

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

- (instancetype)init {
    self = [super init];
    if (self) {
        self.dayUnitView = [self makeTimeUnitView];
        self.hourUnitView = [self makeTimeUnitView];
        self.minuteUnitView = [self makeTimeUnitView];
        self.secondsUnitView = [self makeTimeUnitView];
        
        self.backgroundColor = UIColorFromRGB(0xffeae9);
        
        [self addAllSubviews];
    }
    return self;
}

- (void)dealloc {
    [self.timer invalidate];
    self.timer = nil;
}

- (void)startWithTimeInterval:(NSTimeInterval)ti {
    if (ti != self.totalTime) {
        [self.timer invalidate];
        self.timer = nil;
        
        self.totalTime = ti;
        self.elapseTime = 0;
        
        [self refreshTimeWithTimeInterval:ti];
        self.timer = [NSTimer timerWithTimeInterval:1.0
                                             target:self
                                           selector:@selector(timeCountDownCallback)
                                           userInfo:nil
                                            repeats:YES];
        [[NSRunLoop currentRunLoop] addTimer:self.timer forMode:NSRunLoopCommonModes];
    }
}

- (void)timeCountDownCallback {
    self.elapseTime = (self.elapseTime + 1);
    
    NSTimeInterval remainTime = (self.totalTime - self.elapseTime);
    if (remainTime <= 0) {
        [self.timer invalidate];
        self.timer = nil;
        
        [[NSNotificationCenter defaultCenter] postNotificationName:PRODUCT_DETAIL_COUNT_TIME_ZERO
                                                            object:nil];
    }
    [self refreshTimeWithTimeInterval:MAX(0, remainTime)];
}

- (void)refreshTimeWithTimeInterval:(NSTimeInterval)ti {
    NSDateComponents *componets = [FLStringHelper convertSecondToComponents:ti];
    
    self.dayUnitView.timeLabel.text = [NSString stringWithFormat:@"%02ld", componets.day];
    self.hourUnitView.timeLabel.text = [NSString stringWithFormat:@"%02ld", componets.hour];
    self.minuteUnitView.timeLabel.text = [NSString stringWithFormat:@"%02ld", componets.minute];
    self.secondsUnitView.timeLabel.text = [NSString stringWithFormat:@"%02ld", componets.second];
}

#pragma mark - Layout

- (void)addAllSubviews {
    [self addSubview:self.descLabel];
    [self.descLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerX.equalTo(self);
        make.bottom.equalTo(self.mas_centerY).offset(-5);
    }];
    
    UIView *centerDotView = [self makeDotView];
    [self addSubview:centerDotView];
    [centerDotView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerX.equalTo(self);
        make.top.equalTo(self.mas_centerY).offset(-3);
        make.size.mas_equalTo(CGSizeMake(8, 19));
    }];
    
    [self addSubview:self.hourUnitView];
    [self.hourUnitView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerY.equalTo(centerDotView).offset(1);
        make.right.equalTo(centerDotView.mas_left);
        make.size.mas_equalTo(CGSizeMake(19, 19));
    }];
    
    [self addSubview:self.minuteUnitView];
    [self.minuteUnitView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerY.equalTo(self.hourUnitView);
        make.left.equalTo(centerDotView.mas_right);
        make.size.mas_equalTo(CGSizeMake(19, 19));
    }];
    
    UIView *leftDotView = [self makeDotView];
    [self addSubview:leftDotView];
    [leftDotView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerY.equalTo(centerDotView);
        make.right.equalTo(self.hourUnitView.mas_left);
        make.size.equalTo(centerDotView);
    }];
    
    [self addSubview:self.dayUnitView];
    [self.dayUnitView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerY.equalTo(self.hourUnitView);
        make.right.equalTo(leftDotView.mas_left);
        make.size.mas_equalTo(CGSizeMake(19, 19));
    }];
    
    UIView *rightDotView = [self makeDotView];
    [self addSubview:rightDotView];
    [rightDotView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerY.equalTo(centerDotView);
        make.left.equalTo(self.minuteUnitView.mas_right);
        make.size.equalTo(centerDotView);
    }];
    
    [self addSubview:self.secondsUnitView];
    [self.secondsUnitView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerY.equalTo(self.hourUnitView);
        make.left.equalTo(rightDotView.mas_right);
        make.size.mas_equalTo(CGSizeMake(19, 19));
    }];
}

#pragma mark - Property

- (UILabel *)descLabel {
    if (_descLabel == nil) {
        _descLabel = [[UILabel alloc]init];
        _descLabel.textColor = UIColorFromRGB(0xff2c6b);
        _descLabel.font = [UIFont systemFontOfSize:12];
    }
    return _descLabel;
}

- (FKTimeUnitView *)makeTimeUnitView {
    return [[FKTimeUnitView alloc] init];
}

- (UILabel *)makeDotView {
    UILabel *label = [UILabel new];
    label.textColor = UIColorFromRGB(0xff2c6b);
    label.font = [UIFont systemFontOfSize:13];
    label.textAlignment = NSTextAlignmentCenter;
    label.text = @":";
    return label;
}

@end