81 lines
2.7 KiB
Dart
81 lines
2.7 KiB
Dart
import 'dart:convert';
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import '../oauth_proxy_client.dart';
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/// Immutable MyAnimeList OAuth session.
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///
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/// Access tokens expire in ~31 days. Refresh token rotates with each refresh
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/// (rare but documented in MAL's API contract).
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class MalSession {
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final String accessToken;
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final String refreshToken;
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final int expiresAt;
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final String? username;
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final int createdAt;
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const MalSession({
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required this.accessToken,
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required this.refreshToken,
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required this.expiresAt,
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required this.createdAt,
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this.username,
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});
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bool get isExpired => DateTime.now().millisecondsSinceEpoch ~/ 1000 >= expiresAt;
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bool get needsRefresh => DateTime.now().millisecondsSinceEpoch ~/ 1000 >= expiresAt - 300;
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MalSession copyWith({String? accessToken, String? refreshToken, int? expiresAt, String? username, int? createdAt}) {
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return MalSession(
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accessToken: accessToken ?? this.accessToken,
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refreshToken: refreshToken ?? this.refreshToken,
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expiresAt: expiresAt ?? this.expiresAt,
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username: username ?? this.username,
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createdAt: createdAt ?? this.createdAt,
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);
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}
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Map<String, dynamic> toJson() => {
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'access_token': accessToken,
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'refresh_token': refreshToken,
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'expires_at': expiresAt,
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'username': username,
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'created_at': createdAt,
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};
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factory MalSession.fromJson(Map<String, dynamic> json) => MalSession(
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accessToken: json['access_token'] as String,
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refreshToken: json['refresh_token'] as String,
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expiresAt: (json['expires_at'] as num).toInt(),
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username: json['username'] as String?,
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createdAt: (json['created_at'] as num).toInt(),
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);
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/// Build a session from MAL's `/oauth2/token` response.
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factory MalSession.fromTokenResponse(Map<String, dynamic> json) {
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final createdAt = DateTime.now().millisecondsSinceEpoch ~/ 1000;
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final expiresIn = (json['expires_in'] as num).toInt();
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return MalSession(
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accessToken: json['access_token'] as String,
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refreshToken: json['refresh_token'] as String,
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expiresAt: createdAt + expiresIn,
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createdAt: createdAt,
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);
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}
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/// Build a session from an OAuth-proxy result. MAL's refresh_token is
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/// required for the 31-day refresh loop.
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factory MalSession.fromProxyResult(OAuthProxyResult r) {
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final createdAt = DateTime.now().millisecondsSinceEpoch ~/ 1000;
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final expiresIn = r.expiresIn ?? 31 * 24 * 60 * 60;
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return MalSession(
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accessToken: r.accessToken,
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refreshToken: r.refreshToken ?? '',
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expiresAt: createdAt + expiresIn,
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createdAt: createdAt,
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);
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}
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String encode() => json.encode(toJson());
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static MalSession decode(String raw) => MalSession.fromJson(json.decode(raw) as Map<String, dynamic>);
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}
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