//
//  KBAICommentFooterView.m
//  keyBoard
//
//  Created by Mac on 2026/1/16.
//

#import "KBAICommentFooterView.h"
#import "KBAICommentModel.h"
#import <Masonry/Masonry.h>

@interface KBAICommentFooterView ()

@property(nonatomic, strong) UIButton *actionButton;
@property(nonatomic, strong) UIView *lineView;

@end

@implementation KBAICommentFooterView

- (instancetype)initWithReuseIdentifier:(NSString *)reuseIdentifier {
  self = [super initWithReuseIdentifier:reuseIdentifier];
  if (self) {
    [self setupUI];
  }
  return self;
}

#pragma mark - UI Setup

- (void)setupUI {
  self.contentView.backgroundColor = [UIColor whiteColor];

  [self.contentView addSubview:self.actionButton];
  [self.contentView addSubview:self.lineView];

  [self.actionButton mas_makeConstraints:^(MASConstraintMaker *make) {
    make.left.equalTo(self.contentView).offset(68); // 对齐二级评论
    make.centerY.equalTo(self.contentView);
    make.height.mas_equalTo(24);
  }];

  [self.lineView mas_makeConstraints:^(MASConstraintMaker *make) {
    make.left.equalTo(self.contentView).offset(16);
    make.right.equalTo(self.contentView).offset(-16);
    make.bottom.equalTo(self.contentView);
    make.height.mas_equalTo(0.5);
  }];
}

#pragma mark - Configuration

- (void)configureWithComment:(KBAICommentModel *)comment {
  KBAIReplyFooterState state = [comment footerState];
  NSString *title = @"";

  switch (state) {
  case KBAIReplyFooterStateHidden: {
    self.actionButton.hidden = YES;
    break;
  }
  case KBAIReplyFooterStateExpand: {
    self.actionButton.hidden = NO;
    title = [NSString
        stringWithFormat:@"展开%ld条回复", (long)comment.totalReplyCount];
    [self.actionButton setImage:[UIImage systemImageNamed:@"chevron.down"]
                       forState:UIControlStateNormal];
    break;
  }
  case KBAIReplyFooterStateLoadMore: {
    self.actionButton.hidden = NO;
    NSInteger remaining =
        comment.totalReplyCount - comment.displayedReplies.count;
    title =
        [NSString stringWithFormat:@"展开更多回复（%ld条）", (long)remaining];
    [self.actionButton setImage:[UIImage systemImageNamed:@"chevron.down"]
                       forState:UIControlStateNormal];
    break;
  }
  case KBAIReplyFooterStateCollapse: {
    self.actionButton.hidden = NO;
    title = @"收起";
    [self.actionButton setImage:[UIImage systemImageNamed:@"chevron.up"]
                       forState:UIControlStateNormal];
    break;
  }
  }

  [self.actionButton setTitle:title forState:UIControlStateNormal];
}

#pragma mark - Actions

- (void)actionButtonTapped {
  if (self.onAction) {
    self.onAction();
  }
}

#pragma mark - Lazy Loading

- (UIButton *)actionButton {
  if (!_actionButton) {
    _actionButton = [UIButton buttonWithType:UIButtonTypeCustom];
    _actionButton.titleLabel.font = [UIFont systemFontOfSize:13];
    [_actionButton setTitleColor:[UIColor secondaryLabelColor]
                        forState:UIControlStateNormal];
    _actionButton.tintColor = [UIColor secondaryLabelColor];

    // 文字在左，图标在右
    _actionButton.semanticContentAttribute =
        UISemanticContentAttributeForceLeftToRight;
    _actionButton.imageEdgeInsets = UIEdgeInsetsMake(0, -2, 0, 2);
    _actionButton.titleEdgeInsets = UIEdgeInsetsMake(0, 2, 0, -2);

    [_actionButton addTarget:self
                      action:@selector(actionButtonTapped)
            forControlEvents:UIControlEventTouchUpInside];
  }
  return _actionButton;
}

- (UIView *)lineView {
  if (!_lineView) {
    _lineView = [[UIView alloc] init];
    _lineView.backgroundColor = [UIColor separatorColor];
  }
  return _lineView;
}

@end