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

#import "KBAICommentModel.h"
#import "KBAIReplyModel.h"
#import <MJExtension/MJExtension.h>

@implementation KBAICommentModel

+ (NSDictionary *)mj_replacedKeyFromPropertyName {
  return @{
    @"commentId" : @"id",
    @"userName" : @[ @"userName", @"nickname", @"name" ],
    @"avatarUrl" : @[ @"avatarUrl", @"avatar" ],
  };
}

+ (NSDictionary *)mj_objectClassInArray {
  return @{@"replies" : [KBAIReplyModel class]};
}

- (instancetype)init {
  self = [super init];
  if (self) {
    _displayedReplies = [NSMutableArray array];
    _isRepliesExpanded = NO;
    _hasMoreReplies = NO;
  }
  return self;
}

- (void)setReplies:(NSArray<KBAIReplyModel *> *)replies {
  _replies = replies;
  _totalReplyCount = replies.count;
  _hasMoreReplies = replies.count > 0;
}

- (NSString *)formattedTime {
  NSDate *date = [NSDate dateWithTimeIntervalSince1970:self.createTime];
  NSTimeInterval interval = [[NSDate date] timeIntervalSinceDate:date];

  if (interval < 60) {
    return @"刚刚";
  } else if (interval < 3600) {
    return [NSString stringWithFormat:@"%.0f分钟前", interval / 60];
  } else if (interval < 86400) {
    return [NSString stringWithFormat:@"%.0f小时前", interval / 3600];
  } else if (interval < 86400 * 30) {
    return [NSString stringWithFormat:@"%.0f天前", interval / 86400];
  } else {
    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
    formatter.dateFormat = @"MM-dd";
    return [formatter stringFromDate:date];
  }
}

- (KBAIReplyFooterState)footerState {
  // 无二级评论
  if (self.totalReplyCount == 0) {
    return KBAIReplyFooterStateHidden;
  }

  // 未展开（初始状态）
  if (!self.isRepliesExpanded) {
    return KBAIReplyFooterStateExpand;
  }

  // 已展开但还有更多
  if (self.displayedReplies.count < self.totalReplyCount) {
    return KBAIReplyFooterStateLoadMore;
  }

  // 全部展开，显示收起
  return KBAIReplyFooterStateCollapse;
}

- (void)loadMoreReplies:(NSInteger)count {
  self.isRepliesExpanded = YES;

  NSInteger currentCount = self.displayedReplies.count;
  NSInteger endIndex = MIN(currentCount + count, self.replies.count);

  for (NSInteger i = currentCount; i < endIndex; i++) {
    [self.displayedReplies addObject:self.replies[i]];
  }

  self.hasMoreReplies = (self.displayedReplies.count < self.totalReplyCount);
}

- (void)collapseReplies {
  self.isRepliesExpanded = NO;
  [self.displayedReplies removeAllObjects];
  self.hasMoreReplies = self.totalReplyCount > 0;
}

@end