import 'dart:convert';

import 'package:get_storage/get_storage.dart';

import '../../data/services/db/database_helper.dart';
import '../../data/services/db/sqflite_api.dart';
import '../../data/services/network/api.dart';

class Synchrodata {
  static final GetStorage _storage = GetStorage();

  static List<Map<String, dynamic>> _records =
      (_storage.read("operation_records") as List?)
              ?.map((e) => Map<String, dynamic>.from(e as Map))
              .toList() ??
          [];
  static List _delids = _storage.read("operation_delids") ?? [];
  static bool _isSynchro = false;

  // 保存操作记录
  static Future saveOperationRecord(
    String method,
    dynamic params,
  ) async {
    String userId = '';
    Map? userInfo = _storage.read("user_info");
    if (userInfo != null) {
      userId = userInfo['user']['uid'];
    }
    String id = '${userId}_${params['id']}';
    if (params['type'] != null) {
      params['rtype'] = params['type'];
    }

    switch (method) {
      case 'insert':
        _records.add({
          ...Map<String, dynamic>.from(params),
          'id': id,
          'number': params['id'],
          'uid': userId,
        });
        _storage.write("operation_records", _records);
        break;
      case 'update':
        Map<String, dynamic>? foundElement = _records.firstWhere(
          (element) => element['id'] == id,
          orElse: () => {},
        );
        if (foundElement.isNotEmpty) {
          foundElement.addAll({
            ...Map<String, dynamic>.from(params),
            'id': id,
            'number': params['id'],
          });
        } else {
          _records.add({
            ...Map<String, dynamic>.from(params),
            'id': id,
            'number': params['id'],
            'uid': userId,
          });
        }
        _storage.write("operation_records", _records);
        break;
      case 'delete':
        _delids.add(id);
        _storage.write("operation_delids", _delids);
        break;
      default:
        break;
    }
  }

  // 上传操作记录
  static Future uploadOperationRecords({bool isSynchro = false}) async {
    if (_isSynchro) return;
    _isSynchro = true;
    if (_records.isNotEmpty || _delids.isNotEmpty) {
      // 获取需要修改的全部数据
      List putRecords = [];
      for (var element in _records) {
        Map result = {'details': {}};
        List speakerList = [];
        if (!_delids.contains(element['id'])) {
          result = await SqfliteApi.getMeetingDetails(element['number']);
          speakerList = await SqfliteApi.getMeetingSpeaker(element['number']);
        }
        putRecords.add({
          ...Map<String, dynamic>.from(result),
          ...Map<String, dynamic>.from(result['details']),
          'rtype': result['type'],
          'original': jsonEncode(speakerList),
          ...Map<String, dynamic>.from(element),
        });
      }
      var result = await Api.putOperationRecord({
        'delids': _delids,
        'records': putRecords,
      });
      if (result != null) {
        _records = [];
        _delids = [];
        _storage.write("operation_records", _records);
        _storage.write("operation_delids", _delids);
      }
    }
    if (isSynchro) {
      await _synchrodata();
    }
    _isSynchro = false;
  }

  // 同步数据
  static Future _synchrodata() async {
    final db = await DatabaseHelper().database;
    var result = await Api.getOperationRecord();
    List records = result['records'];
    await db.transaction((txn) async {
      for (var element in records) {
        final List existList = await txn.query(
          'meeting',
          where: 'id = ?',
          whereArgs: [element['number']],
        );
        Map<String, Object?> meetingData = {
          'id': element['number'],
          'title': element['title'] ?? '',
          'type': element['rtype'] ?? '',
          'seconds': element['seconds'] ?? 0,
          'filepath': '',
          'audiourl': element['audiourl'] ?? '',
          'tasktype': element['tasktype'] ?? 0,
          'creationtime': element['creationtime'] ?? 0,
        };
        Map<String, Object?> meetingDetailsData = {
          'meetingid': element['number'],
          'address': element['address'] ?? '',
          'personnel': element['personnel'] ?? '',
          'taskid': element['taskid'] ?? '',
          'tasktype': element['tasktype'] ?? 0,
          'overview': element['overview'] ?? '',
          'summary': element['summary'] ?? '',
          'mindmap': '',
        };
        if (existList.isNotEmpty) {
          await txn.update(
            'meeting',
            meetingData,
            where: 'id = ?',
            whereArgs: [element['number']],
          );
          await txn.update(
            'meetingdetails',
            meetingDetailsData,
            where: 'meetingid = ?',
            whereArgs: [element['number']],
          );
        } else {
          await txn.insert('meeting', meetingData);
          await txn.insert('meetingdetails', meetingDetailsData);
        }
        if (element['original'].isNotEmpty) {
          final List existSpeakerList = await txn.query(
            'meetingspeaker',
            where: 'meetingid = ?',
            whereArgs: [element['number']],
          );
          List speakerList = jsonDecode(element['original']);
          if (existSpeakerList.isNotEmpty) {
            final batch = txn.batch();
            for (var item in speakerList) {
              batch.update(
                'meetingspeaker',
                item,
                where: 'id = ?',
                whereArgs: [item['id']],
              );
            }
            await batch.commit();
          } else {
            final batch = txn.batch();
            for (var item in speakerList) {
              batch.insert('meetingspeaker', item);
            }
            await batch.commit();
          }
        }
      }
    });
  }
}