//
//  AVSettingsViewController.m
//  AVDemo
//

#import "AVSettingsViewController.h"
#import "AVConfigManager.h"
#import "AVConstants.h"
#import "AVUserManager.h"
#import <Masonry/Masonry.h>
#import "UIView+SellyCloud.h"

@interface AVSettingsViewController () <UITextFieldDelegate>
@property (nonatomic, strong) UIScrollView *scrollView;
@property (nonatomic, strong) UIView *contentView;

@property (nonatomic, strong) UITextField *nicknameField;
@property (nonatomic, strong) UISegmentedControl *resolutionSegment;
@property (nonatomic, strong) UITextField *fpsField;
@property (nonatomic, strong) UITextField *maxBitrateField;
@property (nonatomic, strong) UITextField *minBitrateField;
@end

@implementation AVSettingsViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    self.view.backgroundColor = [UIColor systemBackgroundColor];
    self.title = @"设置";
    
    // 添加右上角提交日志按钮 - 延迟设置以避免约束冲突
    dispatch_async(dispatch_get_main_queue(), ^{
        UIBarButtonItem *uploadLogButton = [[UIBarButtonItem alloc] initWithTitle:@"提交日志"
                                                                            style:UIBarButtonItemStylePlain
                                                                           target:self
                                                                           action:@selector(uploadLogButtonTapped)];
        self.navigationItem.rightBarButtonItem = uploadLogButton;
    });

    [self setupUI];
    [self loadConfig];
}

- (void)setupUI {
    _scrollView = [[UIScrollView alloc] init];
    [self.view addSubview:_scrollView];

    _contentView = [[UIView alloc] init];
    [_scrollView addSubview:_contentView];

    [_scrollView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.view.mas_safeAreaLayoutGuideTop);
        make.left.right.bottom.equalTo(self.view);
    }];
    
    [_contentView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.edges.equalTo(_scrollView);
        make.width.equalTo(_scrollView);
    }];

    CGFloat topOffset = 20;
    CGFloat spacing = 30;

    // Nickname
    topOffset = [self addLabel:@"用户昵称" atOffset:topOffset];
    _nicknameField = [self addTextField:@"请输入昵称" atOffset:topOffset];
    topOffset += 40 + spacing;

    // Resolution
    topOffset = [self addLabel:@"分辨率" atOffset:topOffset];
    _resolutionSegment = [[UISegmentedControl alloc] initWithItems:@[@"360p", @"480p", @"540p", @"720p"]];
    [_contentView addSubview:_resolutionSegment];
    
    [_resolutionSegment mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(_contentView).offset(20);
        make.right.equalTo(_contentView).offset(-20);
        make.top.equalTo(_contentView).offset(topOffset);
        make.height.equalTo(@32);
    }];
    topOffset += 32 + spacing;

    // FPS
    topOffset = [self addLabel:@"帧率 (FPS)" atOffset:topOffset];
    _fpsField = [self addTextField:@"例如: 30" atOffset:topOffset];
    _fpsField.keyboardType = UIKeyboardTypeNumberPad;
    topOffset += 40 + spacing;

    // Max bitrate
    topOffset = [self addLabel:@"最大码率 (kbps)" atOffset:topOffset];
    _maxBitrateField = [self addTextField:@"例如: 2000" atOffset:topOffset];
    _maxBitrateField.keyboardType = UIKeyboardTypeNumberPad;
    topOffset += 40 + spacing;

    // Min bitrate
    topOffset = [self addLabel:@"最小码率 (kbps)" atOffset:topOffset];
    _minBitrateField = [self addTextField:@"例如: 500" atOffset:topOffset];
    _minBitrateField.keyboardType = UIKeyboardTypeNumberPad;
    topOffset += 40 + spacing;

    // Save button
    UIButton *saveButton = [UIButton buttonWithType:UIButtonTypeSystem];
    [saveButton setTitle:@"保存设置" forState:UIControlStateNormal];
    saveButton.backgroundColor = [UIColor systemBlueColor];
    [saveButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    saveButton.titleLabel.font = [UIFont systemFontOfSize:17 weight:UIFontWeightSemibold];
    saveButton.layer.cornerRadius = 10;
    [saveButton addTarget:self action:@selector(saveConfig) forControlEvents:UIControlEventTouchUpInside];
    [_contentView addSubview:saveButton];

    [saveButton mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(_contentView).offset(20);
        make.right.equalTo(_contentView).offset(-20);
        make.top.equalTo(_contentView).offset(topOffset);
        make.height.equalTo(@50);
    }];
    topOffset += 50 + 20;

    // Logout button
    UIButton *logoutButton = [UIButton buttonWithType:UIButtonTypeSystem];
    [logoutButton setTitle:@"退出登录" forState:UIControlStateNormal];
    logoutButton.backgroundColor = [UIColor systemRedColor];
    [logoutButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    logoutButton.titleLabel.font = [UIFont systemFontOfSize:17 weight:UIFontWeightSemibold];
    logoutButton.layer.cornerRadius = 10;
    [logoutButton addTarget:self action:@selector(logoutButtonTapped) forControlEvents:UIControlEventTouchUpInside];
    [_contentView addSubview:logoutButton];

    [logoutButton mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(_contentView).offset(20);
        make.right.equalTo(_contentView).offset(-20);
        make.top.equalTo(_contentView).offset(topOffset);
        make.height.equalTo(@50);
    }];
    topOffset += 50 + 20;

    // 设置 contentView 的高度
    [_contentView mas_updateConstraints:^(MASConstraintMaker *make) {
        make.height.equalTo(@(topOffset));
    }];

    // Dismiss keyboard on tap
    UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(dismissKeyboard)];
    [self.view addGestureRecognizer:tap];
}

- (CGFloat)addLabel:(NSString *)text atOffset:(CGFloat)offset {
    UILabel *label = [[UILabel alloc] init];
    label.text = text;
    label.font = [UIFont systemFontOfSize:15 weight:UIFontWeightMedium];
    label.textColor = [UIColor labelColor];
    [_contentView addSubview:label];

    [label mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(_contentView).offset(20);
        make.top.equalTo(_contentView).offset(offset);
    }];

    return offset + 25;
}

- (UITextField *)addTextField:(NSString *)placeholder atOffset:(CGFloat)offset {
    UITextField *textField = [[UITextField alloc] init];
    textField.placeholder = placeholder;
    textField.borderStyle = UITextBorderStyleRoundedRect;
    textField.delegate = self;
    [_contentView addSubview:textField];

    [textField mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(_contentView).offset(20);
        make.right.equalTo(_contentView).offset(-20);
        make.top.equalTo(_contentView).offset(offset);
        make.height.equalTo(@40);
    }];

    return textField;
}

- (void)loadConfig {
    AVVideoConfiguration *config = [AVConfigManager sharedManager].globalConfig;

    _nicknameField.text = config.nickname;
    _resolutionSegment.selectedSegmentIndex = [config currentResolution];
    _fpsField.text = [NSString stringWithFormat:@"%ld", (long)config.videoFrameRate];
    _maxBitrateField.text = [NSString stringWithFormat:@"%ld", (long)(config.videoBitRate / 1000)];
    _minBitrateField.text = [NSString stringWithFormat:@"%ld", (long)(config.videoMinBitRate / 1000)];
}

- (void)saveConfig {
    AVVideoConfiguration *config = [AVConfigManager sharedManager].globalConfig;

    config.nickname = _nicknameField.text.length > 0 ? _nicknameField.text : [AVConfigManager generateRandomNickname];
    [config setResolution:_resolutionSegment.selectedSegmentIndex];
    
    NSInteger fps = [_fpsField.text integerValue] > 0 ? [_fpsField.text integerValue] : 30;
    config.videoFrameRate = fps;
    config.videoMaxKeyframeInterval = fps * 2;
    
    NSInteger maxBitrate = [_maxBitrateField.text integerValue] > 0 ? [_maxBitrateField.text integerValue] : 2000;
    config.videoBitRate = maxBitrate * 1000;  // Convert kbps to bps
    
    NSInteger minBitrate = [_minBitrateField.text integerValue] > 0 ? [_minBitrateField.text integerValue] : 500;
    config.videoMinBitRate = minBitrate * 1000;  // Convert kbps to bps

    [[AVConfigManager sharedManager] saveConfig];

    UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"成功" message:@"设置已保存" preferredStyle:UIAlertControllerStyleAlert];
    [alert addAction:[UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:nil]];
    [self presentViewController:alert animated:YES completion:nil];
}

- (void)logoutButtonTapped {
    UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"确认退出"
                                                                   message:@"确定要退出登录吗？"
                                                            preferredStyle:UIAlertControllerStyleAlert];
    
    UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消"
                                                           style:UIAlertActionStyleCancel
                                                         handler:nil];
    [alert addAction:cancelAction];
    
    UIAlertAction *logoutAction = [UIAlertAction actionWithTitle:@"退出"
                                                           style:UIAlertActionStyleDestructive
                                                         handler:^(UIAlertAction * _Nonnull action) {
        // 执行登出
        [[AVUserManager sharedManager] logout];
        
        // 返回到登录页面
        // 通过 TabBarController 触发登录检查
        if ([self.tabBarController respondsToSelector:@selector(checkLoginStatus)]) {
            [self.tabBarController performSelector:@selector(checkLoginStatus)];
        }
        
        NSLog(@"✅ 已退出登录");
    }];
    [alert addAction:logoutAction];
    
    [self presentViewController:alert animated:YES completion:nil];
}

- (void)uploadLogButtonTapped {
    // 调用 SellyCloudManager 的 uploadLog 方法
    [SellyCloudManager uploadLog:^(NSString * _Nullable url, NSError * _Nullable error) {
        UIAlertController *resultAlert;
        if (error) {
            // 上传失败
            resultAlert = [UIAlertController alertControllerWithTitle:@"上传失败"
                                                               message:[NSString stringWithFormat:@"日志上传失败: %@", error.localizedDescription]
                                                        preferredStyle:UIAlertControllerStyleAlert];
            [resultAlert addAction:[UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:nil]];
        } else {
            // 上传成功
            NSString *message = url ? [NSString stringWithFormat:@"日志已成功上传\n地址: %@", url] : @"日志已成功上传";
            resultAlert = [UIAlertController alertControllerWithTitle:@"上传成功"
                                                               message:message
                                                        preferredStyle:UIAlertControllerStyleAlert];
            NSLog(@"###日志url == %@",url);
            
            // 点击确定后将 URL 复制到粘贴板
            UIAlertAction *confirmAction = [UIAlertAction actionWithTitle:@"确定"
                                                                    style:UIAlertActionStyleDefault
                                                                  handler:^(UIAlertAction * _Nonnull action) {
                if (url.length > 0) {
                    UIPasteboard.generalPasteboard.string = url;
                    [self.view showToast:@"日志 URL 已复制到粘贴板"];
                }
            }];
            [resultAlert addAction:confirmAction];
        }
        [self presentViewController:resultAlert animated:YES completion:nil];
    }];
}

- (void)dismissKeyboard {
    [self.view endEditing:YES];
}

- (BOOL)textFieldShouldReturn:(UITextField *)textField {
    [textField resignFirstResponder];
    return YES;
}

@end