flutter-sport/lib/bean/comment.dart

import 'dart:math';

import 'package:sport/bean/post_user.dart';
import 'package:sport/services/Converter.dart';

class Comment {
  String? id;
  String? subjectId;
  String? userId;
  String? toCommentId;
  String? parentCommentId;
  String? toUserId;
  String? content;
  int? likeCount;
  int? commentCount;
  String? createdAt;
  PostUser? socialInfo;
  String? time;
  int? createTime;
  List<Comment>? subList;
  bool? isLiked = false;

  String? userName;
  String? userAvatar;
  String? toUserName;
  String? toUserAvatar;

  bool? isExpansion;

  Comment({
    this.id,
    this.subjectId,
    this.userId,
    this.toCommentId,
    this.parentCommentId,
    this.toUserId,
    this.content,
    this.likeCount,
    this.commentCount,
    this.createdAt,
    this.socialInfo,
    this.time,
    this.createTime,
    this.subList,
    this.isLiked = false,
    this.userName,
    this.userAvatar,
    this.toUserName,
    this.toUserAvatar,
  });

  Comment.fromJson(Map<String, dynamic> json) {
    id = json['id'];
    subjectId = json['subject_id'];
    userId = json['user_id'];
    toCommentId = json['to_comment_id'];
    parentCommentId = json['parent_comment_id'];
    toUserId = json['to_user_id'];
    content = json['content'];
    likeCount = Converter.toInt(json['like_count']);
    commentCount = Converter.toInt(json['comment_count']);
    createdAt = json['created_at'];
    socialInfo = json['socialInfo'] != null
        ? new PostUser.fromJson(json['socialInfo'])
        : null;
    time = json['time'];
    createTime = json['create_time'];
    if (json['subList'] != null) {
      subList = <Comment>[];
      json['subList'].forEach((v) {
        subList!.add(new Comment.fromJson(v));
      });
    }
    isLiked = json['is_liked'];

    userName = json['user_name'];
    userAvatar = json['user_avatar'];
    toUserName = json['to_user_name'];
    toUserAvatar = json['to_user_avatar'];
  }

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = new Map<String, dynamic>();
    data['id'] = this.id;
    data['subject_id'] = this.subjectId;
    data['user_id'] = this.userId;
    data['to_comment_id'] = this.toCommentId;
    data['parent_comment_id'] = this.parentCommentId;
    data['to_user_id'] = this.toUserId;
    data['content'] = this.content;
    data['like_count'] = this.likeCount;
    data['comment_count'] = this.commentCount;
    data['created_at'] = this.createdAt;
    if (this.socialInfo != null) {
      data['socialInfo'] = this.socialInfo!.toJson();
    }
    data['time'] = this.time;
    data['create_time'] = this.createTime;
    if (this.subList != null) {
      data['subList'] = this.subList!.map((v) => v.toJson()).toList();
    }

    data['user_name'] = this.userName;
    data['user_avatar'] = this.userAvatar;
    data['to_user_name'] = this.toUserName;
    data['to_user_avatar'] = this.toUserAvatar;

    return data;
  }

  void toggleLike() {
    isLiked = !(isLiked ?? false);
    likeCount = incLikeCount();
  }

  int? incLikeCount() {
    return max(0, likeCount ?? 0 + (isLiked ?? false ? 1 : -1));
  }
}