//
//  AVCallViewController.m
//  AVDemo
//

#import "AVCallViewController.h"
#import "SellyVideoCallViewController.h"
#import "SellyVideoCallConferenceController.h"
#import "AVConfigManager.h"
#import <Masonry/Masonry.h>

@interface AVCallViewController () <UITextFieldDelegate>
@property (nonatomic, strong) UITextField *channelIdTextField;
@property (nonatomic, strong) UIButton *callButton;
@property (nonatomic, strong) UIButton *conferenceButton;
@property (nonatomic, strong) UIView *containerView;
@end

@implementation AVCallViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    self.view.backgroundColor = [UIColor systemBackgroundColor];
    self.title = @"通话";
    
    [self setupUI];
    
    // 加载上次使用的频道ID
    self.channelIdTextField.text = [[AVConfigManager sharedManager] loadCallChannelId];
}

- (void)setupUI {
    // 创建容器视图
    self.containerView = [[UIView alloc] init];
    [self.view addSubview:self.containerView];
    
    // 创建频道ID标签
    UILabel *titleLabel = [[UILabel alloc] init];
    titleLabel.text = @"频道ID";
    titleLabel.font = [UIFont systemFontOfSize:16 weight:UIFontWeightMedium];
    titleLabel.textColor = [UIColor labelColor];
    [self.containerView addSubview:titleLabel];
    
    // 创建频道ID输入框
    self.channelIdTextField = [[UITextField alloc] init];
    self.channelIdTextField.placeholder = @"请输入频道ID";
    self.channelIdTextField.borderStyle = UITextBorderStyleRoundedRect;
    self.channelIdTextField.font = [UIFont systemFontOfSize:16];
    self.channelIdTextField.clearButtonMode = UITextFieldViewModeWhileEditing;
    self.channelIdTextField.returnKeyType = UIReturnKeyDone;
    self.channelIdTextField.delegate = self;
    self.channelIdTextField.backgroundColor = [UIColor secondarySystemBackgroundColor];
    [self.containerView addSubview:self.channelIdTextField];
    
    // 创建音视频单聊按钮
    self.callButton = [self createButtonWithTitle:@"音视频单聊"
                                             icon:@"video"
                                           action:@selector(callTapped)];
    [self.containerView addSubview:self.callButton];
    
    // 创建音视频会议按钮
    self.conferenceButton = [self createButtonWithTitle:@"音视频会议"
                                                   icon:@"person.3"
                                                 action:@selector(conferenceTapped)];
    [self.containerView addSubview:self.conferenceButton];
    
    // 布局
    [self.containerView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.center.equalTo(self.view);
        make.width.equalTo(@320);
    }];
    
    [titleLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.left.equalTo(self.containerView);
        make.right.equalTo(self.containerView);
    }];
    
    [self.channelIdTextField mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(titleLabel.mas_bottom).offset(8);
        make.left.right.equalTo(self.containerView);
        make.height.equalTo(@44);
    }];
    
    [self.callButton mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.channelIdTextField.mas_bottom).offset(32);
        make.left.right.equalTo(self.containerView);
        make.height.equalTo(@100);
    }];
    
    [self.conferenceButton mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.callButton.mas_bottom).offset(16);
        make.left.right.equalTo(self.containerView);
        make.height.equalTo(@100);
        make.bottom.equalTo(self.containerView);
    }];
}

- (UIButton *)createButtonWithTitle:(NSString *)title icon:(NSString *)iconName action:(SEL)action {
    UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];
    button.backgroundColor = [UIColor systemBlueColor];
    button.layer.cornerRadius = 12;
    button.clipsToBounds = YES;
    
    // 创建图标
    UIImageView *iconView = [[UIImageView alloc] initWithImage:[UIImage systemImageNamed:iconName]];
    iconView.tintColor = [UIColor whiteColor];
    iconView.contentMode = UIViewContentModeScaleAspectFit;
    
    // 创建标题
    UILabel *titleLabel = [[UILabel alloc] init];
    titleLabel.text = title;
    titleLabel.textColor = [UIColor whiteColor];
    titleLabel.font = [UIFont systemFontOfSize:18 weight:UIFontWeightSemibold];
    titleLabel.textAlignment = NSTextAlignmentCenter;
    
    [button addSubview:iconView];
    [button addSubview:titleLabel];
    
    [iconView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerX.equalTo(button);
        make.centerY.equalTo(button).offset(-15);
        make.width.height.equalTo(@40);
    }];
    
    [titleLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerX.equalTo(button);
        make.top.equalTo(iconView.mas_bottom).offset(8);
        make.left.greaterThanOrEqualTo(button).offset(8);
        make.right.lessThanOrEqualTo(button).offset(-8);
    }];
    
    [button addTarget:self action:action forControlEvents:UIControlEventTouchUpInside];
    
    return button;
}

#pragma mark - Button Actions

- (void)callTapped {
    NSString *channelId = [self.channelIdTextField.text stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
    
    // 验证输入
    if (channelId.length == 0) {
        [self showErrorAlert:@"频道ID不能为空"];
        return;
    }
    
    // 保存频道 ID
    [[AVConfigManager sharedManager] saveCallChannelId:channelId];
    
    // 创建并跳转到视频通话页面
    SellyVideoCallViewController *vc = [[SellyVideoCallViewController alloc] init];
    vc.channelId = channelId;
    vc.videoConfig = SellyRTCVideoConfiguration.defaultConfig;
    
    // 隐藏底部 TabBar
    vc.hidesBottomBarWhenPushed = YES;
    
    [self.navigationController pushViewController:vc animated:YES];
}

- (void)conferenceTapped {
    NSString *channelId = [self.channelIdTextField.text stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
    
    // 验证输入
    if (channelId.length == 0) {
        [self showErrorAlert:@"频道ID不能为空"];
        return;
    }
    
    // 保存频道 ID
    [[AVConfigManager sharedManager] saveCallChannelId:channelId];
    
    // 创建并跳转到视频会议页面
    SellyVideoCallConferenceController *vc = [[SellyVideoCallConferenceController alloc] init];
    vc.channelId = channelId;
    vc.videoConfig = SellyRTCVideoConfiguration.defaultConfig;
    
    // 隐藏底部 TabBar
    vc.hidesBottomBarWhenPushed = YES;
    
    [self.navigationController pushViewController:vc animated:YES];
}

#pragma mark - Helper Methods

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

#pragma mark - UITextFieldDelegate

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

#pragma mark - Orientation Support (强制只支持竖屏)

- (BOOL)shouldAutorotate {
    return YES;
}

- (UIInterfaceOrientationMask)supportedInterfaceOrientations {
    return UIInterfaceOrientationMaskPortrait;
}

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation {
    return UIInterfaceOrientationPortrait;
}

@end