//
//  CategoryPickerView.m
//  BuguLive
//
//  Created by qitewei on 2025/8/20.
//  Copyright © 2025 xfg. All rights reserved.
//

#import "CategoryPickerView.h"
#import "UIView+Extention.h"
#import <Masonry/Masonry.h>

@interface CategoryPickerView () <UITableViewDataSource, UITableViewDelegate>

@property (nonatomic, strong) UIView *backgroundView;
@property (nonatomic, strong) UIView *containerView;
@property (nonatomic, strong) UITableView *tableView;

@end

@implementation CategoryPickerView

- (instancetype)initWithFrame:(CGRect)frame {
    self = [super initWithFrame:frame];
    if (self) {
        [self setupUI];
    }
    return self;
}

- (void)setupUI {
    self.backgroundColor = [UIColor clearColor];
    
    // 背景遮罩
    [self addSubview:self.backgroundView];
    
    // 容器视图
    [self addSubview:self.containerView];
    
    // 表格视图
    [self.containerView addSubview:self.tableView];
    
    [self setupConstraints];
}

- (void)setupConstraints {
    [self.backgroundView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.edges.equalTo(self);
    }];
    
    [self.containerView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.right.bottom.equalTo(self);
        make.height.mas_equalTo(kRealValue(300));
    }];
    
    [self.tableView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.edges.equalTo(self.containerView);
    }];
}

- (void)showInView:(UIView *)parentView fromRect:(CGRect)rect {
    self.frame = parentView.bounds;
    [parentView addSubview:self];
    
    // 初始状态
    self.alpha = 0;
    self.containerView.transform = CGAffineTransformMakeTranslation(0, kRealValue(300));
    
    // 动画显示
    [UIView animateWithDuration:0.3 animations:^{
        self.alpha = 1;
        self.containerView.transform = CGAffineTransformIdentity;
    }];
}

- (void)hide {
    [UIView animateWithDuration:0.3 animations:^{
        self.alpha = 0;
        self.containerView.transform = CGAffineTransformMakeTranslation(0, kRealValue(300));
    } completion:^(BOOL finished) {
        [self removeFromSuperview];
    }];
}

- (void)backgroundTapped:(UITapGestureRecognizer *)gesture {
    [self hide];
}

#pragma mark - UITableViewDataSource

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return self.categories.count;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    static NSString *cellIdentifier = @"CategoryCell";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
    if (!cell) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];
        cell.selectionStyle = UITableViewCellSelectionStyleNone;
        cell.backgroundColor = [UIColor whiteColor];
        cell.textLabel.font = [UIFont systemFontOfSize:16];
        cell.textLabel.textColor = [UIColor blackColor];
    }
    
    IndustryCategoryModel *category = self.categories[indexPath.row];
    cell.textLabel.text = category.name;
    
    return cell;
}

#pragma mark - UITableViewDelegate

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    [tableView deselectRowAtIndexPath:indexPath animated:YES];
    
    IndustryCategoryModel *selectedCategory = self.categories[indexPath.row];
    if ([self.delegate respondsToSelector:@selector(categoryPickerView:didSelectCategory:)]) {
        [self.delegate categoryPickerView:self didSelectCategory:selectedCategory];
    }
    
    [self hide];
}

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
    return kRealValue(50);
}

#pragma mark - Lazy Loading

- (UIView *)backgroundView {
    if (!_backgroundView) {
        _backgroundView = [[UIView alloc] init];
        _backgroundView.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:0.3];
        
        UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(backgroundTapped:)];
        [_backgroundView addGestureRecognizer:tapGesture];
    }
    return _backgroundView;
}

- (UIView *)containerView {
    if (!_containerView) {
        _containerView = [[UIView alloc] init];
        _containerView.backgroundColor = [UIColor whiteColor];
        _containerView.layer.cornerRadius = kRealValue(12);
        _containerView.layer.maskedCorners = kCALayerMinXMinYCorner | kCALayerMaxXMinYCorner;
        _containerView.clipsToBounds = YES;
    }
    return _containerView;
}

- (UITableView *)tableView {
    if (!_tableView) {
        _tableView = [[UITableView alloc] initWithFrame:CGRectZero style:UITableViewStylePlain];
        _tableView.dataSource = self;
        _tableView.delegate = self;
        _tableView.backgroundColor = [UIColor whiteColor];
        _tableView.separatorStyle = UITableViewCellSeparatorStyleSingleLine;
        _tableView.separatorColor = [UIColor colorWithHexString:@"#E5E5E5"];
        _tableView.showsVerticalScrollIndicator = YES;
        _tableView.bounces = YES;
    }
    return _tableView;
}

@end