//
//  JXMemberPromptViewController.m
//  AICity
//
//  Feature: 003-ios-api-https
//  Task: T055 - iOS会员购买跳转
//  Created on 2025-10-14.
//

#import "JXMemberPromptViewController.h"
#import "JXMemberService.h"

@interface JXMemberPromptViewController ()

// UI组件
@property (nonatomic, strong) UIView *containerView;
@property (nonatomic, strong) UIButton *closeButton;
@property (nonatomic, strong) UIImageView *contentIcon;
@property (nonatomic, strong) UILabel *titleLabel;
@property (nonatomic, strong) UILabel *descriptionLabel;
@property (nonatomic, strong) UILabel *currentStatusLabel;
@property (nonatomic, strong) UILabel *requiredStatusLabel;
@property (nonatomic, strong) UILabel *benefitsLabel;
@property (nonatomic, strong) UIButton *purchaseButton;
@property (nonatomic, strong) UIButton *trialButton;
@property (nonatomic, strong) UIButton *cancelButton;

// 服务
@property (nonatomic, strong) JXMemberService *memberService;

@end

@implementation JXMemberPromptViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    self.view.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:0.8];
    self.memberService = [JXMemberService sharedService];
    
    [self setupUI];
    [self updateUI];
}

- (void)setupUI {
    // 容器视图
    self.containerView = [[UIView alloc] init];
    self.containerView.backgroundColor = [UIColor whiteColor];
    self.containerView.layer.cornerRadius = 12.0;
    self.containerView.layer.masksToBounds = YES;
    [self.view addSubview:self.containerView];
    
    // 关闭按钮
    self.closeButton = [UIButton buttonWithType:UIButtonTypeSystem];
    [self.closeButton setTitle:@"✕" forState:UIControlStateNormal];
    self.closeButton.titleLabel.font = [UIFont systemFontOfSize:18 weight:UIFontWeightMedium];
    [self.closeButton setTitleColor:[UIColor grayColor] forState:UIControlStateNormal];
    [self.closeButton addTarget:self action:@selector(closeButtonTapped) forControlEvents:UIControlEventTouchUpInside];
    [self.containerView addSubview:self.closeButton];
    
    // 内容图标
    self.contentIcon = [[UIImageView alloc] init];
    self.contentIcon.image = [UIImage systemImageNamed:@"crown.fill"];
    self.contentIcon.tintColor = [UIColor systemOrangeColor];
    self.contentIcon.contentMode = UIViewContentModeScaleAspectFit;
    [self.containerView addSubview:self.contentIcon];
    
    // 标题
    self.titleLabel = [[UILabel alloc] init];
    self.titleLabel.font = [UIFont systemFontOfSize:20 weight:UIFontWeightBold];
    self.titleLabel.textColor = [UIColor blackColor];
    self.titleLabel.textAlignment = NSTextAlignmentCenter;
    self.titleLabel.numberOfLines = 0;
    [self.containerView addSubview:self.titleLabel];
    
    // 描述
    self.descriptionLabel = [[UILabel alloc] init];
    self.descriptionLabel.font = [UIFont systemFontOfSize:16];
    self.descriptionLabel.textColor = [UIColor darkGrayColor];
    self.descriptionLabel.textAlignment = NSTextAlignmentCenter;
    self.descriptionLabel.numberOfLines = 0;
    [self.containerView addSubview:self.descriptionLabel];
    
    // 当前状态
    self.currentStatusLabel = [[UILabel alloc] init];
    self.currentStatusLabel.font = [UIFont systemFontOfSize:14];
    self.currentStatusLabel.textColor = [UIColor grayColor];
    self.currentStatusLabel.textAlignment = NSTextAlignmentCenter;
    [self.containerView addSubview:self.currentStatusLabel];
    
    // 所需状态
    self.requiredStatusLabel = [[UILabel alloc] init];
    self.requiredStatusLabel.font = [UIFont systemFontOfSize:14 weight:UIFontWeightMedium];
    self.requiredStatusLabel.textColor = [UIColor systemOrangeColor];
    self.requiredStatusLabel.textAlignment = NSTextAlignmentCenter;
    [self.containerView addSubview:self.requiredStatusLabel];
    
    // 权益说明
    self.benefitsLabel = [[UILabel alloc] init];
    self.benefitsLabel.font = [UIFont systemFontOfSize:14];
    self.benefitsLabel.textColor = [UIColor darkGrayColor];
    self.benefitsLabel.numberOfLines = 0;
    [self.containerView addSubview:self.benefitsLabel];
    
    // 购买按钮
    self.purchaseButton = [UIButton buttonWithType:UIButtonTypeSystem];
    self.purchaseButton.backgroundColor = [UIColor systemOrangeColor];
    [self.purchaseButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    self.purchaseButton.titleLabel.font = [UIFont systemFontOfSize:16 weight:UIFontWeightMedium];
    self.purchaseButton.layer.cornerRadius = 8.0;
    [self.purchaseButton addTarget:self action:@selector(purchaseButtonTapped) forControlEvents:UIControlEventTouchUpInside];
    [self.containerView addSubview:self.purchaseButton];
    
    // 试看按钮
    self.trialButton = [UIButton buttonWithType:UIButtonTypeSystem];
    [self.trialButton setTitle:@"免费试看3分钟" forState:UIControlStateNormal];
    [self.trialButton setTitleColor:[UIColor systemBlueColor] forState:UIControlStateNormal];
    self.trialButton.titleLabel.font = [UIFont systemFontOfSize:14];
    self.trialButton.layer.borderWidth = 1.0;
    self.trialButton.layer.borderColor = [UIColor systemBlueColor].CGColor;
    self.trialButton.layer.cornerRadius = 6.0;
    [self.trialButton addTarget:self action:@selector(trialButtonTapped) forControlEvents:UIControlEventTouchUpInside];
    [self.containerView addSubview:self.trialButton];
    
    // 取消按钮
    self.cancelButton = [UIButton buttonWithType:UIButtonTypeSystem];
    [self.cancelButton setTitle:@"取消" forState:UIControlStateNormal];
    [self.cancelButton setTitleColor:[UIColor grayColor] forState:UIControlStateNormal];
    self.cancelButton.titleLabel.font = [UIFont systemFontOfSize:16];
    [self.cancelButton addTarget:self action:@selector(cancelButtonTapped) forControlEvents:UIControlEventTouchUpInside];
    [self.containerView addSubview:self.cancelButton];
    
    [self setupConstraints];
}

- (void)setupConstraints {
    // 使用Auto Layout设置约束
    self.containerView.translatesAutoresizingMaskIntoConstraints = NO;
    self.closeButton.translatesAutoresizingMaskIntoConstraints = NO;
    self.contentIcon.translatesAutoresizingMaskIntoConstraints = NO;
    self.titleLabel.translatesAutoresizingMaskIntoConstraints = NO;
    self.descriptionLabel.translatesAutoresizingMaskIntoConstraints = NO;
    self.currentStatusLabel.translatesAutoresizingMaskIntoConstraints = NO;
    self.requiredStatusLabel.translatesAutoresizingMaskIntoConstraints = NO;
    self.benefitsLabel.translatesAutoresizingMaskIntoConstraints = NO;
    self.purchaseButton.translatesAutoresizingMaskIntoConstraints = NO;
    self.trialButton.translatesAutoresizingMaskIntoConstraints = NO;
    self.cancelButton.translatesAutoresizingMaskIntoConstraints = NO;
    
    [NSLayoutConstraint activateConstraints:@[
        // 容器视图
        [self.containerView.centerXAnchor constraintEqualToAnchor:self.view.centerXAnchor],
        [self.containerView.centerYAnchor constraintEqualToAnchor:self.view.centerYAnchor],
        [self.containerView.widthAnchor constraintEqualToConstant:320],
        
        // 关闭按钮
        [self.closeButton.topAnchor constraintEqualToAnchor:self.containerView.topAnchor constant:16],
        [self.closeButton.trailingAnchor constraintEqualToAnchor:self.containerView.trailingAnchor constant:-16],
        [self.closeButton.widthAnchor constraintEqualToConstant:30],
        [self.closeButton.heightAnchor constraintEqualToConstant:30],
        
        // 内容图标
        [self.contentIcon.topAnchor constraintEqualToAnchor:self.containerView.topAnchor constant:24],
        [self.contentIcon.centerXAnchor constraintEqualToAnchor:self.containerView.centerXAnchor],
        [self.contentIcon.widthAnchor constraintEqualToConstant:48],
        [self.contentIcon.heightAnchor constraintEqualToConstant:48],
        
        // 标题
        [self.titleLabel.topAnchor constraintEqualToAnchor:self.contentIcon.bottomAnchor constant:16],
        [self.titleLabel.leadingAnchor constraintEqualToAnchor:self.containerView.leadingAnchor constant:20],
        [self.titleLabel.trailingAnchor constraintEqualToAnchor:self.containerView.trailingAnchor constant:-20],
        
        // 描述
        [self.descriptionLabel.topAnchor constraintEqualToAnchor:self.titleLabel.bottomAnchor constant:12],
        [self.descriptionLabel.leadingAnchor constraintEqualToAnchor:self.containerView.leadingAnchor constant:20],
        [self.descriptionLabel.trailingAnchor constraintEqualToAnchor:self.containerView.trailingAnchor constant:-20],
        
        // 当前状态
        [self.currentStatusLabel.topAnchor constraintEqualToAnchor:self.descriptionLabel.bottomAnchor constant:16],
        [self.currentStatusLabel.leadingAnchor constraintEqualToAnchor:self.containerView.leadingAnchor constant:20],
        [self.currentStatusLabel.trailingAnchor constraintEqualToAnchor:self.containerView.trailingAnchor constant:-20],
        
        // 所需状态
        [self.requiredStatusLabel.topAnchor constraintEqualToAnchor:self.currentStatusLabel.bottomAnchor constant:4],
        [self.requiredStatusLabel.leadingAnchor constraintEqualToAnchor:self.containerView.leadingAnchor constant:20],
        [self.requiredStatusLabel.trailingAnchor constraintEqualToAnchor:self.containerView.trailingAnchor constant:-20],
        
        // 权益说明
        [self.benefitsLabel.topAnchor constraintEqualToAnchor:self.requiredStatusLabel.bottomAnchor constant:16],
        [self.benefitsLabel.leadingAnchor constraintEqualToAnchor:self.containerView.leadingAnchor constant:20],
        [self.benefitsLabel.trailingAnchor constraintEqualToAnchor:self.containerView.trailingAnchor constant:-20],
        
        // 购买按钮
        [self.purchaseButton.topAnchor constraintEqualToAnchor:self.benefitsLabel.bottomAnchor constant:24],
        [self.purchaseButton.leadingAnchor constraintEqualToAnchor:self.containerView.leadingAnchor constant:20],
        [self.purchaseButton.trailingAnchor constraintEqualToAnchor:self.containerView.trailingAnchor constant:-20],
        [self.purchaseButton.heightAnchor constraintEqualToConstant:44],
        
        // 试看按钮
        [self.trialButton.topAnchor constraintEqualToAnchor:self.purchaseButton.bottomAnchor constant:12],
        [self.trialButton.leadingAnchor constraintEqualToAnchor:self.containerView.leadingAnchor constant:20],
        [self.trialButton.trailingAnchor constraintEqualToAnchor:self.containerView.trailingAnchor constant:-20],
        [self.trialButton.heightAnchor constraintEqualToConstant:36],
        
        // 取消按钮
        [self.cancelButton.topAnchor constraintEqualToAnchor:self.trialButton.bottomAnchor constant:12],
        [self.cancelButton.centerXAnchor constraintEqualToAnchor:self.containerView.centerXAnchor],
        [self.cancelButton.bottomAnchor constraintEqualToAnchor:self.containerView.bottomAnchor constant:-20],
        [self.cancelButton.heightAnchor constraintEqualToConstant:32]
    ]];
}

- (void)updateUI {
    // 更新标题和描述
    NSString *requiredMemberType = [self getRequiredMemberType:self.requiredLevel];
    self.titleLabel.text = [NSString stringWithFormat:@"观看此内容需要%@权限", [self getMemberTypeDisplayName:requiredMemberType]];
    
    switch (self.requiredLevel) {
        case 1:
            self.descriptionLabel.text = @"此为付费内容，需要开通会员才能观看完整视频";
            break;
        case 2:
            self.descriptionLabel.text = @"此为高级内容，需要高级会员或VIP会员权限";
            break;
        case 3:
            self.descriptionLabel.text = @"此为VIP专享内容，需要VIP会员权限";
            break;
        default:
            self.descriptionLabel.text = @"此内容需要会员权限才能观看";
            break;
    }
    
    // 更新当前状态
    self.currentStatusLabel.text = [NSString stringWithFormat:@"当前状态：%@", [self getMemberTypeDisplayName:self.memberStatus.localMemberType]];
    
    // 更新所需状态
    self.requiredStatusLabel.text = [NSString stringWithFormat:@"所需权限：%@", [self getMemberTypeDisplayName:requiredMemberType]];
    
    // 更新权益说明
    [self updateBenefitsText:requiredMemberType];
    
    // 更新按钮状态
    [self updateButtonStates:requiredMemberType];
}

- (void)updateBenefitsText:(NSString *)requiredMemberType {
    NSString *benefits;
    if ([requiredMemberType isEqualToString:@"basic"]) {
        benefits = @"• 观看所有付费内容\n• 无广告播放\n• 高清画质";
    } else if ([requiredMemberType isEqualToString:@"premium"]) {
        benefits = @"• 观看所有付费和高级内容\n• 无广告播放\n• 超高清画质\n• 离线下载";
    } else if ([requiredMemberType isEqualToString:@"vip"]) {
        benefits = @"• 观看所有内容包括VIP专享\n• 无广告播放\n• 4K超高清画质\n• 离线下载\n• 优先客服支持";
    } else {
        benefits = @"• 观看付费内容\n• 更好的观看体验";
    }
    self.benefitsLabel.text = benefits;
}

- (void)updateButtonStates:(NSString *)requiredMemberType {
    // 根据当前会员状态和所需权限更新按钮显示
    BOOL canUpgrade = [self canUpgradeToRequiredLevel:self.memberStatus.localMemberType requiredType:requiredMemberType];
    
    self.purchaseButton.enabled = canUpgrade;
    
    if ([self.memberStatus.localMemberType isEqualToString:@"free"]) {
        [self.purchaseButton setTitle:[NSString stringWithFormat:@"开通%@", [self getMemberTypeDisplayName:requiredMemberType]] forState:UIControlStateNormal];
    } else if (canUpgrade) {
        [self.purchaseButton setTitle:[NSString stringWithFormat:@"升级到%@", [self getMemberTypeDisplayName:requiredMemberType]] forState:UIControlStateNormal];
    } else {
        [self.purchaseButton setTitle:[NSString stringWithFormat:@"已是%@", [self getMemberTypeDisplayName:self.memberStatus.localMemberType]] forState:UIControlStateNormal];
    }
    
    // 试看按钮（某些内容可能支持试看）
    self.trialButton.hidden = ![self supportsTrial:self.requiredLevel];
}

#pragma mark - Button Actions

- (void)closeButtonTapped {
    if (self.onCancel) {
        self.onCancel();
    }
    [self dismissViewControllerAnimated:YES completion:nil];
}

- (void)purchaseButtonTapped {
    [self navigateToMemberPurchase];
}

- (void)trialButtonTapped {
    if (self.onTrialPlay) {
        self.onTrialPlay(3 * 60); // 3分钟试看
    }
    [self dismissViewControllerAnimated:YES completion:nil];
}

- (void)cancelButtonTapped {
    if (self.onCancel) {
        self.onCancel();
    }
    [self dismissViewControllerAnimated:YES completion:nil];
}

- (void)navigateToMemberPurchase {
    // 跳转到本APP的会员购买页面
    // 这里需要根据实际的会员购买页面进行调整
    
    // 方式1: 使用URL Scheme跳转
    NSString *urlString = [NSString stringWithFormat:@"aicity://member/purchase?type=%@&source=juxing&episode=%@", 
                          [self getRequiredMemberType:self.requiredLevel], self.episodeId];
    NSURL *url = [NSURL URLWithString:urlString];
    
    if ([[UIApplication sharedApplication] canOpenURL:url]) {
        [[UIApplication sharedApplication] openURL:url options:@{} completionHandler:^(BOOL success) {
            if (success) {
                // 跳转成功，监听会员购买结果
                [self startMonitoringMemberPurchase];
            } else {
                [self showFallbackPurchaseOptions];
            }
        }];
    } else {
        // 方式2: 发送通知跳转到主页面的会员购买Tab
        [[NSNotificationCenter defaultCenter] postNotificationName:@"ShowMemberPurchase" 
                                                            object:nil 
                                                          userInfo:@{
                                                              @"required_type": [self getRequiredMemberType:self.requiredLevel],
                                                              @"source": @"juxing_player",
                                                              @"episode_id": self.episodeId ?: @""
                                                          }];
        
        [self showFallbackPurchaseOptions];
    }
}

- (void)showFallbackPurchaseOptions {
    UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"开通会员"
                                                                   message:@"请前往主页面开通会员"
                                                            preferredStyle:UIAlertControllerStyleAlert];
    
    [alert addAction:[UIAlertAction actionWithTitle:@"前往主页" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
        // 跳转到主页面
        [[NSNotificationCenter defaultCenter] postNotificationName:@"NavigateToMainPage" object:nil];
        if (self.onCancel) {
            self.onCancel();
        }
        [self dismissViewControllerAnimated:YES completion:nil];
    }]];
    
    [alert addAction:[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil]];
    
    [self presentViewController:alert animated:YES completion:nil];
}

- (void)startMonitoringMemberPurchase {
    // 监听会员购买成功通知
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(memberPurchaseSuccessNotification:)
                                                 name:@"MemberPurchaseSuccess"
                                               object:nil];
    
    // 设置超时监听（30秒后停止监听）
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(30.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        [[NSNotificationCenter defaultCenter] removeObserver:self name:@"MemberPurchaseSuccess" object:nil];
    });
}

- (void)memberPurchaseSuccessNotification:(NSNotification *)notification {
    [[NSNotificationCenter defaultCenter] removeObserver:self name:@"MemberPurchaseSuccess" object:nil];
    
    // 刷新会员状态
    [self refreshMemberStatusAndPlay];
}

- (void)refreshMemberStatusAndPlay {
    [self.memberService getCurrentMemberStatusWithForceRefresh:YES completion:^(JXMemberStatus * _Nullable memberStatus, NSError * _Nullable error) {
        dispatch_async(dispatch_get_main_queue(), ^{
            if (error) {
                [self showAlert:@"获取会员状态失败" message:error.localizedDescription];
                return;
            }
            
            // 检查是否现在有权限
            if (memberStatus.accessLevel >= self.requiredLevel) {
                [self showAlert:@"会员开通成功！" message:@"即将开始播放"];
                
                dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
                    if (self.onMemberPurchaseSuccess) {
                        self.onMemberPurchaseSuccess();
                    }
                    [self dismissViewControllerAnimated:YES completion:nil];
                });
            } else {
                [self showAlert:@"会员权限不足" message:@"请升级会员"];
                // 更新UI显示最新状态
                self.memberStatus = memberStatus;
                [self updateUI];
            }
        });
    }];
}

#pragma mark - Helper Methods

- (NSString *)getRequiredMemberType:(NSInteger)level {
    switch (level) {
        case 0: return @"free";
        case 1: return @"basic";
        case 2: return @"premium";
        case 3: return @"vip";
        default: return @"basic";
    }
}

- (NSString *)getMemberTypeDisplayName:(NSString *)memberType {
    if ([memberType isEqualToString:@"free"]) {
        return @"免费用户";
    } else if ([memberType isEqualToString:@"basic"]) {
        return @"基础会员";
    } else if ([memberType isEqualToString:@"premium"]) {
        return @"高级会员";
    } else if ([memberType isEqualToString:@"vip"]) {
        return @"VIP会员";
    } else {
        return @"未知类型";
    }
}

- (BOOL)canUpgradeToRequiredLevel:(NSString *)currentType requiredType:(NSString *)requiredType {
    NSInteger currentLevel = [self getMemberLevel:currentType];
    NSInteger requiredLevel = [self getMemberLevel:requiredType];
    return currentLevel < requiredLevel;
}

- (NSInteger)getMemberLevel:(NSString *)memberType {
    if ([memberType isEqualToString:@"free"]) {
        return 0;
    } else if ([memberType isEqualToString:@"basic"]) {
        return 1;
    } else if ([memberType isEqualToString:@"premium"]) {
        return 2;
    } else if ([memberType isEqualToString:@"vip"]) {
        return 3;
    } else {
        return 0;
    }
}

- (BOOL)supportsTrial:(NSInteger)requiredLevel {
    // 某些内容可能支持试看功能
    return requiredLevel <= 2; // 只有基础和高级内容支持试看，VIP内容不支持
}

- (void)showAlert:(NSString *)title message:(NSString *)message {
    UIAlertController *alert = [UIAlertController alertControllerWithTitle:title
                                                                   message:message
                                                            preferredStyle:UIAlertControllerStyleAlert];
    [alert addAction:[UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:nil]];
    [self presentViewController:alert animated:YES completion:nil];
}

- (void)dealloc {
    [[NSNotificationCenter defaultCenter] removeObserver:self];
}

@end