fluffychat/lib/pangea/models/summary_analytics_model.dart

57 lines
1.9 KiB
Dart

import 'dart:convert';
import 'package:fluffychat/pangea/constants/model_keys.dart';
import 'package:fluffychat/pangea/models/analytics_model.dart';
import 'package:fluffychat/pangea/models/student_analytics_summary_model.dart';
import 'package:fluffychat/pangea/utils/error_handler.dart';
import 'package:flutter/foundation.dart';
class SummaryAnalyticsModel extends AnalyticsModel {
late List<RecentMessageRecord> _messages;
SummaryAnalyticsModel({
required List<RecentMessageRecord> messages,
super.lastUpdated,
super.prevEventId,
super.prevLastUpdated,
}) {
_messages = messages;
}
List<RecentMessageRecord> get messages => _messages;
static const _messagesKey = "msgs";
static const _lastUpdatedKey = "lupt";
Map<String, dynamic> toJson() => {
_messagesKey: jsonEncode(_messages.map((e) => e.toJson()).toList()),
_lastUpdatedKey: lastUpdated?.toIso8601String(),
ModelKey.prevEventId: prevEventId,
ModelKey.prevLastUpdated: prevLastUpdated?.toIso8601String(),
};
factory SummaryAnalyticsModel.fromJson(json) {
List<RecentMessageRecord> savedMessages = [];
try {
savedMessages = json[_messagesKey] != null
? (jsonDecode(json[_messagesKey] ?? "[]") as Iterable)
.map((e) => RecentMessageRecord.fromJson(e))
.toList()
.cast<RecentMessageRecord>()
: [];
} catch (err, stack) {
if (kDebugMode) rethrow;
ErrorHandler.logError(e: err, s: stack);
}
return SummaryAnalyticsModel(
messages: savedMessages,
lastUpdated: json[_lastUpdatedKey] != null
? DateTime.parse(json[_lastUpdatedKey])
: null,
prevEventId: json[ModelKey.prevEventId],
prevLastUpdated: json[ModelKey.prevLastUpdated] != null
? DateTime.parse(json[ModelKey.prevLastUpdated])
: null,
);
}
}