tsacdop-podcast-app-android/lib/class/searchpodcast.dart

import 'package:json_annotation/json_annotation.dart';
part 'searchpodcast.g.dart';

@JsonSerializable()
class SearchPodcast<P>{
  @_ConvertP()
  final List<P> results;
  @JsonKey(name: 'next_offset')
  final int nextOffset;
  final int total;
  final int count;
  SearchPodcast(
    {this.results, this.nextOffset, this.total, this.count}
  );
  factory SearchPodcast.fromJson(Map<String, dynamic> json) => 
    _$SearchPodcastFromJson<P>(json);
  Map<String, dynamic> toJson() => _$SearchPodcastToJson(this);
}

class _ConvertP<P> implements JsonConverter<P, Object>{
  const _ConvertP();
  @override
  P fromJson(Object json){
    return OnlinePodcast.fromJson(json) as P;
  }
  @override
  Object toJson(P object){
    return object;
  }
}

@JsonSerializable()
class OnlinePodcast{
  @JsonKey(name: 'earliest_pub_date_ms')
  final int earliestPubDate;
  @JsonKey(name: 'title_original')
  final String title;
  final String rss;
  @JsonKey(name: 'lastest_pub_date_ms')
  final int lastestPubDate;
  @JsonKey(name: 'description_original')
  final String description;
  @JsonKey(name: 'total_episodes')
  final int count;
  final String image;
  @JsonKey(name: 'publisher_original')
  final String publisher;
  OnlinePodcast(
    {this.earliestPubDate, this.title, this.count, this.description, this.image, this.lastestPubDate, this.rss, this.publisher}
  );
  factory OnlinePodcast.fromJson(Map<String, dynamic> json) =>
    _$OnlinePodcastFromJson(json);
  Map<String, dynamic> toJson() => _$OnlinePodcastToJson(this);
}