//
//  SCLiveStatsView.m
//  SellyCloudSDK_Example
//
//  Created by Caleb on 21/10/25.
//  Copyright © 2025 Caleb. All rights reserved.
//

#import "SCLiveStatsView.h"

@interface SCLiveStatsView ()
@property (nonatomic, strong) UIVisualEffectView *blurView;
@property (nonatomic, strong) UIView *headerView;
@property (nonatomic, strong) UIView *contentView;
@property (nonatomic, strong) UIStackView *statsStackView;
@property (nonatomic, strong) UILabel *titleLabel;

// Stats items
@property (nonatomic, strong) UIView *protocolItem;
@property (nonatomic, strong) UIView *appCpuItem;
@property (nonatomic, strong) UIView *sysCpuItem;
@property (nonatomic, strong) UIView *bitrateItem;
@property (nonatomic, strong) UIView *fpsItem;
@property (nonatomic, strong) UIView *rttItem;
@property (nonatomic, strong) UIView *packetLossItem;  // 新增：丢包率

@property (nonatomic, strong) UILabel *protocolLabel;
@property (nonatomic, strong) UILabel *appCpuLabel;
@property (nonatomic, strong) UILabel *sysCpuLabel;
@property (nonatomic, strong) UILabel *bitrateLabel;
@property (nonatomic, strong) UILabel *fpsLabel;
@property (nonatomic, strong) UILabel *rttLabel;
@property (nonatomic, strong) UILabel *packetLossLabel;  // 新增：丢包率标签

@property (nonatomic, strong) UIButton *toggleButton;
@property (nonatomic, assign) BOOL isExpanded;

@property (nonatomic, strong) MASConstraint *contentViewHeightConstraint;
@end

@implementation SCLiveStatsView

- (instancetype)init
{
    self = [super init];
    if (self) {
        _isExpanded = YES; // 默认展开
        [self setupView];
    }
    return self;
}

- (void)setupView {
    // 毛玻璃背景
    UIBlurEffect *blurEffect = [UIBlurEffect effectWithStyle:UIBlurEffectStyleSystemUltraThinMaterialDark];
    _blurView = [[UIVisualEffectView alloc] initWithEffect:blurEffect];
    _blurView.layer.cornerRadius = 12;
    _blurView.layer.masksToBounds = YES;
    [self addSubview:_blurView];
    [_blurView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.edges.equalTo(self);
    }];
    
    // 边框
    self.layer.cornerRadius = 12;
    self.layer.borderWidth = 0.5;
    self.layer.borderColor = [[UIColor whiteColor] colorWithAlphaComponent:0.3].CGColor;
    
    // 标题栏（可点击）
    _headerView = [[UIView alloc] init];
    [_blurView.contentView addSubview:_headerView];
    [_headerView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.left.right.equalTo(_blurView.contentView);
        make.height.offset(44);
    }];
    
    // 添加点击手势
    UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(toggleButtonTapped)];
    [_headerView addGestureRecognizer:tap];
    
    // 标题
    _titleLabel = [[UILabel alloc] init];
    _titleLabel.text = @"📊 直播数据";
    _titleLabel.font = [UIFont systemFontOfSize:14 weight:UIFontWeightSemibold];
    _titleLabel.textColor = [UIColor whiteColor];
    [_headerView addSubview:_titleLabel];
    [_titleLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerY.equalTo(_headerView);
        make.left.offset(12);
    }];
    
    // 展开/收起按钮
    _toggleButton = [UIButton buttonWithType:UIButtonTypeSystem];
    // 默认展开状态，显示向上箭头（表示可以收起）
    [_toggleButton setImage:[UIImage systemImageNamed:@"chevron.up.circle.fill"] forState:UIControlStateNormal];
    _toggleButton.tintColor = [[UIColor whiteColor] colorWithAlphaComponent:0.8];
    [_toggleButton addTarget:self action:@selector(toggleButtonTapped) forControlEvents:UIControlEventTouchUpInside];
    [_headerView addSubview:_toggleButton];
    [_toggleButton mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerY.equalTo(_headerView);
        make.right.offset(-12);
        make.width.height.offset(24);
    }];
    
    // 分割线
    UIView *separatorLine = [[UIView alloc] init];
    separatorLine.backgroundColor = [[UIColor whiteColor] colorWithAlphaComponent:0.2];
    [_blurView.contentView addSubview:separatorLine];
    [separatorLine mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(_headerView.mas_bottom);
        make.left.offset(12);
        make.right.offset(-12);
        make.height.offset(0.5);
    }];
    
    // 内容容器
    _contentView = [[UIView alloc] init];
    _contentView.clipsToBounds = YES;
    [_blurView.contentView addSubview:_contentView];
    [_contentView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(separatorLine.mas_bottom);
        make.left.right.bottom.equalTo(_blurView.contentView);
        // 保存高度约束的引用，用于动态调整
        self.contentViewHeightConstraint = make.height.offset(0);
    }];
    
    // StackView 用于统一管理数据项
    _statsStackView = [[UIStackView alloc] init];
    _statsStackView.axis = UILayoutConstraintAxisVertical;
    _statsStackView.spacing = 6;
    _statsStackView.distribution = UIStackViewDistributionFill; // 改为 Fill，因为我们会手动设置每个 item 的高度
    _statsStackView.alignment = UIStackViewAlignmentFill;
    [_contentView addSubview:_statsStackView];
    [_statsStackView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.offset(12);
        make.left.offset(12);
        make.right.offset(-12);
        make.bottom.offset(-12);
    }];
    
    // 创建数据项
    _protocolItem = [self createStatsItemWithIcon:@"network" label:_protocolLabel = [self createValueLabel]];
    _appCpuItem = [self createStatsItemWithIcon:@"cpu" label:_appCpuLabel = [self createValueLabel]];
    _sysCpuItem = [self createStatsItemWithIcon:@"cpu.fill" label:_sysCpuLabel = [self createValueLabel]];
    _bitrateItem = [self createStatsItemWithIcon:@"speedometer" label:_bitrateLabel = [self createValueLabel]];
    _fpsItem = [self createStatsItemWithIcon:@"film" label:_fpsLabel = [self createValueLabel]];
    _rttItem = [self createStatsItemWithIcon:@"timer" label:_rttLabel = [self createValueLabel]];
    _packetLossItem = [self createStatsItemWithIcon:@"exclamationmark.triangle" label:_packetLossLabel = [self createValueLabel]];  // 新增丢包率项
    
    [_statsStackView addArrangedSubview:_protocolItem];
    [_statsStackView addArrangedSubview:_appCpuItem];
    [_statsStackView addArrangedSubview:_sysCpuItem];
    [_statsStackView addArrangedSubview:_bitrateItem];
    [_statsStackView addArrangedSubview:_fpsItem];
    [_statsStackView addArrangedSubview:_rttItem];
    [_statsStackView addArrangedSubview:_packetLossItem];  // 添加到 StackView
    
    // 设置每个 item 的高度
    for (UIView *item in _statsStackView.arrangedSubviews) {
        [item mas_makeConstraints:^(MASConstraintMaker *make) {
            make.height.offset(20);
        }];
    }
    
    // 计算展开时的内容高度：item高度 * 数量 + 间距 * (数量-1) + 上下padding
    CGFloat expandedHeight = 20 * 7 + 6 * 6 + 24; // 20*7 + 6*6 + 12*2 = 200
    [self.contentViewHeightConstraint setOffset:expandedHeight];
}

- (UIView *)createStatsItemWithIcon:(NSString *)iconName label:(UILabel *)valueLabel {
    UIView *container = [[UIView alloc] init];
    
    // 图标
    UIImageView *iconView = [[UIImageView alloc] initWithImage:[UIImage systemImageNamed:iconName]];
    iconView.tintColor = [[UIColor whiteColor] colorWithAlphaComponent:0.8];
    iconView.contentMode = UIViewContentModeScaleAspectFit;
    [container addSubview:iconView];
    [iconView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.offset(0);
        make.centerY.equalTo(container);
        make.width.height.offset(14);
    }];
    
    // 值标签
    [container addSubview:valueLabel];
    [valueLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(iconView.mas_right).offset(8);
        make.centerY.equalTo(container);
        make.right.offset(0);
    }];
    
    return container;
}

- (UILabel *)createValueLabel {
    UILabel *label = [[UILabel alloc] init];
    label.font = [UIFont monospacedSystemFontOfSize:11 weight:UIFontWeightMedium];
    label.textColor = [UIColor whiteColor];
    label.adjustsFontSizeToFitWidth = YES;
    label.minimumScaleFactor = 0.7;
    label.numberOfLines = 1;
    return label;
}

- (void)toggleButtonTapped {
    self.isExpanded = !self.isExpanded;
    
    // 计算高度
    CGFloat expandedHeight = 20 * 7 + 6 * 6 + 24; // item高度 * 数量 + 间距 * (数量-1) + 上下padding
    CGFloat collapsedHeight = 0;
    
    [UIView animateWithDuration:0.3 delay:0 usingSpringWithDamping:0.8 initialSpringVelocity:0.5 options:UIViewAnimationOptionCurveEaseInOut animations:^{
        if (self.isExpanded) {
            // 展开状态：显示向上箭头（表示可以收起）
            [self.toggleButton setImage:[UIImage systemImageNamed:@"chevron.up.circle.fill"] forState:UIControlStateNormal];
            [self.contentViewHeightConstraint setOffset:expandedHeight];
        } else {
            // 收起状态：显示向下箭头（表示可以展开）
            [self.toggleButton setImage:[UIImage systemImageNamed:@"chevron.down.circle.fill"] forState:UIControlStateNormal];
            [self.contentViewHeightConstraint setOffset:collapsedHeight];
        }
        
        // 显示/隐藏内容（用 alpha 做淡入淡出效果）
        self.contentView.alpha = self.isExpanded ? 1.0 : 0.0;
        
        // 更新约束触发布局更新
        [self.superview layoutIfNeeded];
    } completion:nil];
    
    // 触觉反馈
    UIImpactFeedbackGenerator *feedback = [[UIImpactFeedbackGenerator alloc] initWithStyle:UIImpactFeedbackStyleLight];
    [feedback impactOccurred];
}

- (void)setStats:(SellyLivePusherStats *)stats {
    _stats = stats;
    
    // 协议 + streamId
    if (self.streamId.length > 0) {
        self.protocolLabel.text = [NSString stringWithFormat:@"%@,streamId：%@", stats.protocol, self.streamId];
    } else {
        self.protocolLabel.text = stats.protocol;
    }
    
    // App CPU（独立显示）
    UIColor *appCpuColor = [self colorForCPU:stats.appCpu];
    NSMutableAttributedString *appCpuText = [[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:@"App CPU: %ld%%", stats.appCpu]];
    [appCpuText addAttribute:NSForegroundColorAttributeName value:appCpuColor range:NSMakeRange(0, appCpuText.length)];
    self.appCpuLabel.attributedText = appCpuText;
    
    // System CPU（独立显示）
    UIColor *sysCpuColor = [self colorForCPU:stats.systemCpu];
    NSMutableAttributedString *sysCpuText = [[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:@"Sys CPU: %ld%%", stats.systemCpu]];
    [sysCpuText addAttribute:NSForegroundColorAttributeName value:sysCpuColor range:NSMakeRange(0, sysCpuText.length)];
    self.sysCpuLabel.attributedText = sysCpuText;
    
    // 码率（音频 + 视频）
    NSInteger totalBitrate = stats.audioBitrate + stats.videoBitrate;
    self.bitrateLabel.text = [NSString stringWithFormat:@"%ld kbps (A:%ld V:%ld)", 
                               totalBitrate, stats.audioBitrate, stats.videoBitrate];
    
    // FPS（根据帧率设置颜色）
    UIColor *fpsColor = [self colorForFPS:stats.fps];
    NSMutableAttributedString *fpsText = [[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:@"FPS: %ld", stats.fps]];
    [fpsText addAttribute:NSForegroundColorAttributeName value:fpsColor range:NSMakeRange(0, fpsText.length)];
    self.fpsLabel.attributedText = fpsText;
    
    // RTT（根据延迟设置颜色）
    UIColor *rttColor = [self colorForRTT:stats.rtt];
    NSMutableAttributedString *rttText = [[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:@"RTT: %ld ms", stats.rtt]];
    [rttText addAttribute:NSForegroundColorAttributeName value:rttColor range:NSMakeRange(0, rttText.length)];
    self.rttLabel.attributedText = rttText;
    
    // 丢包率（根据丢包率设置颜色）
    UIColor *packetLossColor = [self colorForPacketLoss:stats.packetLossRate];
    NSMutableAttributedString *packetLossText = [[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:@"丢包: %.2f%%", stats.packetLossRate]];
    [packetLossText addAttribute:NSForegroundColorAttributeName value:packetLossColor range:NSMakeRange(0, packetLossText.length)];
    self.packetLossLabel.attributedText = packetLossText;
}

#pragma mark - Helper Methods

- (UIColor *)colorForCPU:(NSInteger)cpu {
    if (cpu < 40) {
        return [UIColor colorWithRed:0.3 green:0.85 blue:0.39 alpha:1.0]; // 绿色
    } else if (cpu < 70) {
        return [UIColor colorWithRed:1.0 green:0.8 blue:0.0 alpha:1.0]; // 黄色
    } else {
        return [UIColor colorWithRed:1.0 green:0.23 blue:0.19 alpha:1.0]; // 红色
    }
}

- (UIColor *)colorForFPS:(NSInteger)fps {
    if (fps >= 25) {
        return [UIColor colorWithRed:0.3 green:0.85 blue:0.39 alpha:1.0]; // 绿色
    } else if (fps >= 15) {
        return [UIColor colorWithRed:1.0 green:0.8 blue:0.0 alpha:1.0]; // 黄色
    } else {
        return [UIColor colorWithRed:1.0 green:0.23 blue:0.19 alpha:1.0]; // 红色
    }
}

- (UIColor *)colorForRTT:(NSInteger)rtt {
    if (rtt < 100) {
        return [UIColor colorWithRed:0.3 green:0.85 blue:0.39 alpha:1.0]; // 绿色
    } else if (rtt < 300) {
        return [UIColor colorWithRed:1.0 green:0.8 blue:0.0 alpha:1.0]; // 黄色
    } else {
        return [UIColor colorWithRed:1.0 green:0.23 blue:0.19 alpha:1.0]; // 红色
    }
}

- (UIColor *)colorForPacketLoss:(CGFloat)packetLoss {
    if (packetLoss < 2.0) {
        return [UIColor colorWithRed:0.3 green:0.85 blue:0.39 alpha:1.0]; // 绿色：优秀
    } else if (packetLoss < 5.0) {
        return [UIColor colorWithRed:1.0 green:0.8 blue:0.0 alpha:1.0]; // 黄色：一般
    } else {
        return [UIColor colorWithRed:1.0 green:0.23 blue:0.19 alpha:1.0]; // 红色：差
    }
}

@end