//
//  EPMomentViewController.m
//  YuMi
//
//  Created by AI on 2025-10-09.
//  Copyright © 2025 YuMi. All rights reserved.
//

#import "EPMomentViewController.h"
#import <UIKit/UIKit.h>
#import <Masonry/Masonry.h>
#import "EPMomentCell.h"
#import "EPMomentListView.h"
#import "EPMomentPublishViewController.h"

@interface EPMomentViewController ()

// MARK: - UI Components

/// 列表视图（MVVM：View）
@property (nonatomic, strong) EPMomentListView *listView;

/// 顶部固定文案
@property (nonatomic, strong) UILabel *topTipLabel;

@end

@implementation EPMomentViewController

// MARK: - Lifecycle

- (void)viewDidLoad {
    [super viewDidLoad];
    
    self.title = @"动态";
    
    [self setupUI];
    [self.listView reloadFirstPage];
    
    NSLog(@"[EPMomentViewController] 页面加载完成");
}

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];
    
    // 注意：当前 ViewController 没有包装在 NavigationController 中
    // 如果未来需要导航栏，应该在 TabBarController 中包装 UINavigationController
}

// MARK: - Setup UI

- (void)setupUI {
    // 先设置纯色背景作为兜底，避免白色闪烁
    self.view.backgroundColor = [UIColor colorWithRed:0.95 green:0.95 blue:0.97 alpha:1.0];
    
    UIImageView *bgImageView = [[UIImageView alloc] initWithImage:kImage(@"vc_bg")];
    bgImageView.contentMode = UIViewContentModeScaleAspectFill;
    bgImageView.clipsToBounds = YES;
    [self.view addSubview:bgImageView];
    [bgImageView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.edges.mas_equalTo(self.view);
    }];
    
    // 顶部固定文案
    [self.view addSubview:self.topTipLabel];
    [self.topTipLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.view.mas_safeAreaLayoutGuideTop).offset(8);
        make.left.equalTo(self.view).offset(20);
        make.right.equalTo(self.view).offset(-20);
    }];
    
    // 列表视图
    [self.view addSubview:self.listView];
    [self.listView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.right.bottom.equalTo(self.view);
        make.top.equalTo(self.topTipLabel.mas_bottom).offset(8);
    }];
    
    // 右上角发布按钮
    UIBarButtonItem *publishItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(onPublishButtonTapped)];
    self.navigationItem.rightBarButtonItem = publishItem;
    
    NSLog(@"[EPMomentViewController] UI 设置完成");
}

// 不再在 VC 内部直接发请求/维护分页

// MARK: - Actions

- (void)onPublishButtonTapped {
    NSLog(@"[EPMomentViewController] 发布按钮点击");
    EPMomentPublishViewController *vc = [[EPMomentPublishViewController alloc] init];
    vc.modalPresentationStyle = UIModalPresentationFullScreen;
    [self.navigationController presentViewController:vc animated:YES completion:nil];
}

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

// 列表点击回调由 listView 暴露

// MARK: - Lazy Loading

// Lazy

- (EPMomentListView *)listView {
    if (!_listView) {
        _listView = [[EPMomentListView alloc] initWithFrame:CGRectZero];
        __weak typeof(self) weakSelf = self;
        _listView.onSelectMoment = ^(NSInteger index) {
            __strong typeof(weakSelf) self = weakSelf;
            [self showAlertWithMessage:[NSString stringWithFormat:@"点击了第 %ld 条动态", (long)index]];
        };
    }
    return _listView;
}

- (UILabel *)topTipLabel {
    if (!_topTipLabel) {
        _topTipLabel = [UILabel new];
        _topTipLabel.numberOfLines = 0;
        _topTipLabel.textColor = [UIColor whiteColor];
        _topTipLabel.font = [UIFont systemFontOfSize:16 weight:UIFontWeightRegular];
        _topTipLabel.text = @"The disease is like a cruel ruler, measuring the true length of my life, but it is also like a lamp, illuminating the present that I have always ignored. Now I feel a strange freedom: since the end is clear, I can take every step with my whole heart.";
    }
    return _topTipLabel;
}

// 无数据源属性

@end