import 'package:flutter_mm_core/im_core/model/model_conversation.dart';
import 'package:flutter_mm_core/im_core/model/model_message.dart';
import 'package:flutter_mm_core/im_core/model/model_user_info.dart';
import 'package:jydj/tools_base/global_store/store.dart';
import '../im_ad/im_ad_item.dart';

/// 会话
class IMSessionModel {
  int? peerId;
  String? avatar;
  String? nickName;
  String? lastText;
  String? updatedAt;
  int? messageType;
  int seq = 0;
  // 对方在线状态，来自 IM SDK 的 ModelConversation.onlineInfo.online
  bool? online;

  // SDK 内部会话主键（${otherId}_${isGroup}），用于 setConversationRead 等 API
  String? primaryId;

  // SDK 的 IM userId（区分业务 peerId）；私信详情用它做精确路由
  int? imUserId;
  int? unreadCount; // 未读数
  ImAdItem? adItem;
  bool get isAdStyle => adItem != null;
  bool get hasUnRead => (unreadCount ?? 0) > 0;
  String? get updatedYMD {
    if (updatedAt?.split(" ").isNotEmpty == true) {
      return updatedAt?.split(" ").first;
    }
    if (updatedAt?.split("T").isNotEmpty == true) {
      return updatedAt?.split("T").first;
    }
    return updatedAt;
  }

  ModelConversation? originModel;
  IMSessionModel({this.peerId, this.nickName, this.avatar});

  static List<IMSessionModel> covertData(ModelConversationListResult conList) {
    List<IMSessionModel> sessionList = [];
    for (int i = 0; i < (conList.conversations.length); i++) {
      ModelConversation conversation = conList.conversations[i];
      ModelUserInfo? userInfo = conversation.userInfo;
      IMSessionModel sessionInfo = IMSessionModel();
      sessionInfo.peerId = userInfo?.id ?? int.tryParse(conversation.targetId ?? '');
      sessionInfo.avatar = userInfo?.imgUrl;
      sessionInfo.nickName = userInfo?.name;
      sessionInfo.lastText = conversation.content;
      sessionInfo.online = conversation.onlineInfo?.online;
      sessionInfo.primaryId = conversation.primaryId;
      sessionInfo.unreadCount = conversation.unreadCount;
      sessionInfo.messageType = conversation.messageType;
      sessionInfo.imUserId = int.tryParse(conversation.targetId ?? '');
      sessionInfo.seq = conversation.seq;
      sessionInfo.originModel = conversation;
      if (conversation.time > 0) {
        var dateTimeStr = _conversationTimeToIsoString(conversation.time);
        sessionInfo.updatedAt = dateTimeStr;
      }
      sessionList.add(sessionInfo);
    }
    return sessionList;
  }

  static String _conversationTimeToIsoString(int rawTime) {
    if (rawTime <= 0) return '';
    final milliseconds = rawTime >= 1000000000000 ? rawTime : rawTime * 1000;
    return DateTime.fromMillisecondsSinceEpoch(milliseconds).toString();
  }
}

class IMMessageResp {
  bool? enabled;
  int? userId;
  int? imUserId;
  int? peerId;
  int? peerImUserId;

  List<IMMessageModel>? messages;

  IMMessageResp();

  IMMessageResp.fromJson(Map<String, dynamic> json) {
    enabled = json['enabled'];
    userId = json['userId'];
    imUserId = json['imUserId'];
    peerId = json['peerId'];
    peerImUserId = json['peerImUserId'];

    if (json['messages'] is List) {
      messages = [];
      json['messages'].forEach((v) {
        messages!.add(IMMessageModel.fromJson(v));
      });
    }
  }
}

class IMMessageModel {
  String? messageId;
  String? senderId;
  String? receiverId;
  String? content;
  dynamic messageType;
  int? messageState; // 发送状态 0发送中 1失败 2成功 (MessageSendStatus)
  String? localId; // 客户端本地ID,发送中/失败状态更新用
  int? seq;
  int? createdAt;
  int? timestamp;
  bool? fromSelf;
  String? senderNickName;
  String? senderAvatar;
  String? receiverNickName;
  String? receiverAvatar;

  /// 业务扩展字段，服务端透传原始字符串；内容不要求是 JSON。
  String? extra;
  String? url; //文件地址
  String? localPath; //下载后的本地路径
  ModelMessage? originMsgModel;
  IMMessageModel();

  IMMessageModel.fromJson(Map<String, dynamic> json) {
    receiverAvatar = json['receiverAvatar'];
    receiverNickName = json['receiverNickName'];
    senderAvatar = json['senderAvatar'];
    senderNickName = json['senderNickName'];
    messageId = json['messageId'];
    senderId = json['senderId']?.toString();
    receiverId = json['receiverId']?.toString();
    content = json['content'];
    messageType = json['messageType'];
    seq = json['seq'];
    createdAt = json['createdAt'];
    fromSelf = json['fromSelf'];
  }

  /// 图片消息有两种：
  /// - chatMessageType=2 (SDK 原生 IMAGE)：用 m.url / m.localPath（完整 CDN 链接）
  /// - chatMessageType=100 (CUSTOMIZED)：双层解析 m.extra 拿 url
  static IMMessageModel convertModel(ModelMessage model) {
    IMMessageModel msgModel = IMMessageModel();
    msgModel.originMsgModel = model;
    msgModel.messageId = model.messageId;
    msgModel.content = model.content;
    msgModel.senderId = model.senderID;
    msgModel.receiverId = model.receiverID;
    msgModel.createdAt = model.timestamp;
    msgModel.timestamp = model.timestamp;
    msgModel.seq = model.sequence;
    msgModel.messageType = model.chatMessageType;
    msgModel.messageState = model.messageState;
    msgModel.localId = model.localId;
    if (model.senderID == globalStore.meInfo?.imUserId?.toString()) {
      msgModel.fromSelf = true;
    }
    final type = model.chatMessageType ?? 0;
    if (type == 2) {
      // SDK 原生 IMAGE
      if ((model.url ?? '').isNotEmpty) {
        msgModel.url = model.url;
      } else if ((model.localPath ?? '').isNotEmpty) {
        msgModel.localPath = model.localPath;
      }
    }
    msgModel.extra = model.extra;
    return msgModel;
  }

  String? get image {
    if (url?.isNotEmpty == true) {
      return url;
    }
    if (localPath?.isNotEmpty == true) {
      return localPath;
    }
    return null;
  }
}

class IMSendFileInfo {
  double? height;
  int? type; // 1 图片, 2文件
  String? url;

  IMSendFileInfo({this.height, this.type, this.url});

  IMSendFileInfo.fromJson(Map<String, dynamic> json) {
    height = json['height'];
    type = json['type'];
    url = json['url'] ?? '';
  }

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = <String, dynamic>{};
    data['height'] = height;
    data['type'] = type;
    data['url'] = url;
    return data;
  }
}