112 lines
3.4 KiB
Dart
112 lines
3.4 KiB
Dart
import 'package:equatable/equatable.dart';
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import 'finbert_result_model.dart';
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import 'matched_asset_model.dart';
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class NewsArticleModel extends Equatable {
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final String id;
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final String title;
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final String author;
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final String summary;
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final String contentRaw;
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final String sourceUrl;
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final DateTime scrapedAt;
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final DateTime publishedAt;
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final String status;
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// Flatted sentiment properties
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final String sentiment;
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final double sentimentScore;
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final double confidence;
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final FinbertResultModel? finbertResult;
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final List<MatchedAssetModel> matchedAssets;
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const NewsArticleModel({
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required this.id,
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required this.title,
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required this.author,
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required this.summary,
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required this.contentRaw,
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required this.sourceUrl,
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required this.scrapedAt,
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required this.publishedAt,
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required this.status,
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required this.sentiment,
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required this.sentimentScore,
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required this.confidence,
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this.finbertResult,
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this.matchedAssets = const [],
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});
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factory NewsArticleModel.fromJson(Map<String, dynamic> json) {
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List<MatchedAssetModel> assets = [];
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final mList = json['matchedAssets'];
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if (mList != null && mList is List) {
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assets = mList
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.whereType<Map<String, dynamic>>()
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.map((e) => MatchedAssetModel.fromJson(e))
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.toList();
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}
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return NewsArticleModel(
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id: json['id']?.toString() ?? '',
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title: json['title']?.toString() ?? 'No Title',
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author: json['author']?.toString() ?? 'Unknown',
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summary: json['summary']?.toString() ?? '',
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contentRaw: json['contentRaw']?.toString() ?? '',
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sourceUrl: json['sourceUrl']?.toString() ?? '',
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scrapedAt: DateTime.tryParse(json['scrapedAt']?.toString() ?? '') ?? DateTime.now(),
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publishedAt: DateTime.tryParse(json['publishedAt']?.toString() ?? '') ?? DateTime.now(),
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status: json['status']?.toString() ?? 'Completed',
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sentiment: json['sentiment']?.toString() ?? '',
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sentimentScore: (json['sentimentScore'] as num?)?.toDouble() ?? 0.0,
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confidence: (json['confidence'] as num?)?.toDouble() ?? 0.0,
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finbertResult: json['finbertResult'] != null
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? FinbertResultModel.fromJson(json['finbertResult'] as Map<String, dynamic>)
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: null,
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matchedAssets: assets,
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);
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}
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Map<String, dynamic> toJson() {
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return {
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'id': id,
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'title': title,
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'author': author,
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'summary': summary,
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'contentRaw': contentRaw,
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'sourceUrl': sourceUrl,
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'scrapedAt': scrapedAt.toIso8601String(),
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'publishedAt': publishedAt.toIso8601String(),
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'status': status,
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'sentiment': sentiment,
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'sentimentScore': sentimentScore,
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'confidence': confidence,
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'finbertResult': finbertResult != null ? {
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'label': finbertResult!.label,
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'score': finbertResult!.score,
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'positiveProbability': finbertResult!.positiveProbability,
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'negativeProbability': finbertResult!.negativeProbability,
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'neutralProbability': finbertResult!.neutralProbability,
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'processingTimeMs': finbertResult!.processingTimeMs,
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} : null,
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};
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}
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@override
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List<Object?> get props => [
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id,
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title,
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author,
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summary,
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contentRaw,
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sourceUrl,
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scrapedAt,
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publishedAt,
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status,
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sentiment,
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sentimentScore,
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confidence,
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finbertResult,
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];
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}
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