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

78 lines
2.1 KiB
Dart

import 'dart:convert';
import 'package:dio/dio.dart';
import 'package:html/parser.dart';
import 'package:tsacdop/local_storage/sqflite_localpodcast.dart';
class FiresideData {
final String id;
final String link;
String _background;
String get background => _background;
List<PodcastHost> _hosts;
List<PodcastHost> get hosts => _hosts;
FiresideData(this.id, this.link);
DBHelper dbHelper = DBHelper();
Future fatchData() async {
Response response = await Dio().get(link);
if (response.statusCode == 200) {
var doc = parse(response.data);
RegExp reg = RegExp(r'https(.+)jpg');
String backgroundImage = reg.stringMatch(doc.body
.getElementsByClassName('hero-background')
.first
.attributes
.toString());
var ul = doc.body.getElementsByClassName('episode-hosts').first.children;
List<PodcastHost> hosts = [];
ul.forEach((element) {
PodcastHost host;
String name = element.text.trim();
String image =
element.children.first.children.first.attributes.toString();
print(reg.stringMatch(image));
host = PodcastHost(
name,
reg.stringMatch(image) ??
'http://xuanmei.us/assets/default/avatar_small-170afdc2be97fc6148b283083942d82c101d4c1061f6b28f87c8958b52664af9.jpg');
hosts.add(host);
});
List<String> data = [
id,
backgroundImage,
json.encode({'hosts': hosts.map((host) => host.toJson()).toList()})
];
await dbHelper.saveFiresideData(data);
}
}
Future getData() async {
List<String> data = await dbHelper.getFiresideData(id);
_background = data[0];
_hosts = json
.decode(data[1])['hosts']
.cast<Map<String, Object>>()
.map<PodcastHost>(PodcastHost.fromJson)
.toList();
}
}
class PodcastHost {
final String image;
final String name;
PodcastHost(this.name, this.image);
Map<String, Object> toJson() {
return {'name': name, 'image': image};
}
static PodcastHost fromJson(Map<String, Object> json) {
return PodcastHost(json['name'] as String, json['image'] as String);
}
}