polaris/ui/lib/providers/activity.dart

import 'dart:async';

import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:ui/providers/APIs.dart';
import 'package:ui/providers/server_response.dart';

var activitiesDataProvider =
    AsyncNotifierProvider.family<ActivityData, List<Activity>, String>(
        ActivityData.new);

var mediaHistoryDataProvider = FutureProvider.autoDispose.family(
  (ref, arg) async {
    final dio = await APIs.getDio();
    var resp = await dio.get("${APIs.activityMediaUrl}$arg");
    final sp = ServerResponse.fromJson(resp.data);
    if (sp.code != 0) {
      throw sp.message;
    }
    List<Activity> activities = List.empty(growable: true);
    for (final a in sp.data as List) {
      activities.add(Activity.fromJson(a));
    }
    return activities;
  },
);

class ActivityData extends FamilyAsyncNotifier<List<Activity>, String> {
  @override
  FutureOr<List<Activity>> build(String arg) async {
    if (arg == "active") {
      //refresh active downloads
      Timer(const Duration(seconds: 5),
          ref.invalidateSelf); //Periodically Refresh
    }

    final dio = await APIs.getDio();
    var resp =
        await dio.get(APIs.activityUrl, queryParameters: {"status": arg});
    final sp = ServerResponse.fromJson(resp.data);
    if (sp.code != 0) {
      throw sp.message;
    }
    List<Activity> activities = List.empty(growable: true);
    for (final a in sp.data as List) {
      activities.add(Activity.fromJson(a));
    }
    return activities;
  }

  Future<void> deleteActivity(int id) async {
    final dio = await APIs.getDio();
    var resp = await dio.delete("${APIs.activityUrl}$id");
    final sp = ServerResponse.fromJson(resp.data);
    if (sp.code != 0) {
      throw sp.message;
    }
    ref.invalidateSelf();
  }
}

class Activity {
  Activity(
      {required this.id,
      required this.mediaId,
      required this.episodeId,
      required this.sourceTitle,
      required this.date,
      required this.targetDir,
      required this.status,
      required this.saved,
      required this.progress,
      required this.size});

  final int? id;
  final int? mediaId;
  final int? episodeId;
  final String? sourceTitle;
  final DateTime? date;
  final String? targetDir;
  final String? status;
  final String? saved;
  final int? progress;
  final int? size;

  factory Activity.fromJson(Map<String, dynamic> json) {
    return Activity(
        id: json["id"],
        mediaId: json["media_id"],
        episodeId: json["episode_id"],
        sourceTitle: json["source_title"],
        date: DateTime.tryParse(json["date"] ?? ""),
        targetDir: json["target_dir"],
        status: json["status"],
        saved: json["saved"],
        progress: json["progress"],
        size: json["size"]);
  }
}