feat(flutter/models): User, ArtistRef, AlbumRef, TrackRef, HomeData

Field names mirror web/src/lib/api/types.ts and the server JSON shape
(internal/api/types.go's HomePayload). Hand-written DTOs per spec
section 10 -- codegen revisits at ~30 models.

Adopts server contract over plan-body mock:
- cover_url (not cover_art_url) for artist/album refs
- duration_sec (not duration_ms) for albums and tracks
- stream_url, disc_number on TrackRef
- sort_name/album_count on ArtistRef; sort_title/year/track_count on AlbumRef

HomeData section keys match server: recently_added_albums,
rediscover_albums, rediscover_artists, most_played_tracks,
last_played_artists.
This commit is contained in:
2026-05-02 17:18:12 -04:00
parent c93b852e65
commit c0785cf894
6 changed files with 351 additions and 0 deletions
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// Mirrors internal/api/types.go AlbumRef and web/src/lib/api/types.ts.
//
// `cover_url` (NOT cover_art_url) and `duration_sec` (NOT duration_ms) match
// the server contract. `year` is omitempty on the server so we keep it
// nullable. CoverURL is non-null but may be "" — UI branches on isEmpty.
class AlbumRef {
const AlbumRef({
required this.id,
required this.title,
required this.artistId,
this.sortTitle = '',
this.artistName = '',
this.year,
this.trackCount = 0,
this.durationSec = 0,
this.coverUrl = '',
});
final String id;
final String title;
final String sortTitle;
final String artistId;
final String artistName;
final int? year;
final int trackCount;
final int durationSec;
final String coverUrl;
factory AlbumRef.fromJson(Map<String, dynamic> j) => AlbumRef(
id: j['id'] as String,
title: j['title'] as String,
sortTitle: j['sort_title'] as String? ?? '',
artistId: j['artist_id'] as String,
artistName: j['artist_name'] as String? ?? '',
year: (j['year'] as num?)?.toInt(),
trackCount: (j['track_count'] as num?)?.toInt() ?? 0,
durationSec: (j['duration_sec'] as num?)?.toInt() ?? 0,
coverUrl: j['cover_url'] as String? ?? '',
);
}
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// Mirrors internal/api/types.go ArtistRef and web/src/lib/api/types.ts.
//
// `cover_url` is the server's field name (NOT cover_art_url). Server emits
// "" when the artist has no representative album cover, so we keep it
// non-null here and let UI code branch on isEmpty. `sort_name` and
// `album_count` are exposed by the server contract; we accept their
// absence defensively (older fixtures, partial mocks).
class ArtistRef {
const ArtistRef({
required this.id,
required this.name,
this.sortName = '',
this.albumCount = 0,
this.coverUrl = '',
});
final String id;
final String name;
final String sortName;
final int albumCount;
final String coverUrl;
factory ArtistRef.fromJson(Map<String, dynamic> j) => ArtistRef(
id: j['id'] as String,
name: j['name'] as String,
sortName: j['sort_name'] as String? ?? '',
albumCount: (j['album_count'] as num?)?.toInt() ?? 0,
coverUrl: j['cover_url'] as String? ?? '',
);
}
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import 'album.dart';
import 'artist.dart';
import 'track.dart';
// Mirrors internal/api/types.go HomePayload and web/src/lib/api/types.ts.
// Section keys MUST stay in sync with the server's JSON tags:
// recently_added_albums / rediscover_albums / rediscover_artists /
// most_played_tracks / last_played_artists.
//
// Server contract guarantees all five slices are non-nil at JSON encode
// time (empty sections render as []), but we still tolerate missing keys
// so partial fixtures and offline-degraded responses can be parsed.
class HomeData {
const HomeData({
required this.recentlyAddedAlbums,
required this.rediscoverAlbums,
required this.rediscoverArtists,
required this.mostPlayedTracks,
required this.lastPlayedArtists,
});
final List<AlbumRef> recentlyAddedAlbums;
final List<AlbumRef> rediscoverAlbums;
final List<ArtistRef> rediscoverArtists;
final List<TrackRef> mostPlayedTracks;
final List<ArtistRef> lastPlayedArtists;
factory HomeData.fromJson(Map<String, dynamic> j) => HomeData(
recentlyAddedAlbums: _list(j, 'recently_added_albums', AlbumRef.fromJson),
rediscoverAlbums: _list(j, 'rediscover_albums', AlbumRef.fromJson),
rediscoverArtists: _list(j, 'rediscover_artists', ArtistRef.fromJson),
mostPlayedTracks: _list(j, 'most_played_tracks', TrackRef.fromJson),
lastPlayedArtists: _list(j, 'last_played_artists', ArtistRef.fromJson),
);
static List<T> _list<T>(
Map<String, dynamic> j,
String key,
T Function(Map<String, dynamic>) parse,
) {
final raw = j[key] as List? ?? const [];
return raw
.map((e) => parse((e as Map).cast<String, dynamic>()))
.toList(growable: false);
}
}
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// Mirrors internal/api/types.go TrackRef and web/src/lib/api/types.ts.
//
// Server uses `duration_sec` (NOT duration_ms). `track_number` and
// `disc_number` are omitempty server-side so they're nullable here.
// `stream_url` points at /api/tracks/{id}/stream.
class TrackRef {
const TrackRef({
required this.id,
required this.title,
required this.albumId,
required this.artistId,
this.albumTitle = '',
this.artistName = '',
this.trackNumber,
this.discNumber,
this.durationSec = 0,
this.streamUrl = '',
});
final String id;
final String title;
final String albumId;
final String albumTitle;
final String artistId;
final String artistName;
final int? trackNumber;
final int? discNumber;
final int durationSec;
final String streamUrl;
factory TrackRef.fromJson(Map<String, dynamic> j) => TrackRef(
id: j['id'] as String,
title: j['title'] as String,
albumId: j['album_id'] as String,
albumTitle: j['album_title'] as String? ?? '',
artistId: j['artist_id'] as String,
artistName: j['artist_name'] as String? ?? '',
trackNumber: (j['track_number'] as num?)?.toInt(),
discNumber: (j['disc_number'] as num?)?.toInt(),
durationSec: (j['duration_sec'] as num?)?.toInt() ?? 0,
streamUrl: j['stream_url'] as String? ?? '',
);
}
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// Mirrors internal/api/types.go UserView. The /api/* user shape — narrower
// than dbq.User (no password hash, no api_token, no subsonic_password).
//
// `id` is a pgtype.UUID server-side which marshals to a plain string when
// Valid, so we accept it as String here. `is_admin` is always present in
// the server response but we tolerate its absence (default false) to keep
// older fixtures and partial mocks loadable.
class User {
const User({
required this.id,
required this.username,
required this.isAdmin,
});
final String id;
final String username;
final bool isAdmin;
factory User.fromJson(Map<String, dynamic> j) => User(
id: j['id'] as String,
username: j['username'] as String,
isAdmin: j['is_admin'] as bool? ?? false,
);
}
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import 'package:flutter_test/flutter_test.dart';
import 'package:minstrel/models/album.dart';
import 'package:minstrel/models/artist.dart';
import 'package:minstrel/models/home_data.dart';
import 'package:minstrel/models/track.dart';
import 'package:minstrel/models/user.dart';
void main() {
group('User.fromJson', () {
test('parses canonical UserView shape', () {
final u = User.fromJson({
'id': 'usr-1',
'username': 'alice',
'is_admin': true,
});
expect(u.id, 'usr-1');
expect(u.username, 'alice');
expect(u.isAdmin, isTrue);
});
test('defaults is_admin to false when missing', () {
final u = User.fromJson({'id': 'usr-2', 'username': 'bob'});
expect(u.isAdmin, isFalse);
});
});
group('ArtistRef.fromJson', () {
test('parses full payload using server cover_url field', () {
final a = ArtistRef.fromJson({
'id': 'art-1',
'name': 'Boards of Canada',
'sort_name': 'Boards of Canada',
'album_count': 7,
'cover_url': '/api/albums/al-1/cover',
});
expect(a.name, 'Boards of Canada');
expect(a.sortName, 'Boards of Canada');
expect(a.albumCount, 7);
expect(a.coverUrl, '/api/albums/al-1/cover');
});
test('tolerates missing optional fields', () {
final a = ArtistRef.fromJson({'id': 'art-2', 'name': 'Aphex Twin'});
expect(a.sortName, '');
expect(a.albumCount, 0);
expect(a.coverUrl, '');
});
});
group('AlbumRef.fromJson', () {
test('parses full payload with year and duration_sec', () {
final a = AlbumRef.fromJson({
'id': 'al-1',
'title': 'Geogaddi',
'sort_title': 'Geogaddi',
'artist_id': 'art-1',
'artist_name': 'Boards of Canada',
'year': 2002,
'track_count': 23,
'duration_sec': 4020,
'cover_url': '/api/albums/al-1/cover',
});
expect(a.title, 'Geogaddi');
expect(a.year, 2002);
expect(a.trackCount, 23);
expect(a.durationSec, 4020);
expect(a.coverUrl, '/api/albums/al-1/cover');
});
test('leaves year null when absent', () {
final a = AlbumRef.fromJson({
'id': 'al-2',
'title': 'Untitled',
'artist_id': 'art-1',
});
expect(a.year, isNull);
expect(a.trackCount, 0);
expect(a.durationSec, 0);
});
});
group('TrackRef.fromJson', () {
test('parses full payload including stream_url', () {
final t = TrackRef.fromJson({
'id': 'tr-1',
'title': 'Music Is Math',
'album_id': 'al-1',
'album_title': 'Geogaddi',
'artist_id': 'art-1',
'artist_name': 'Boards of Canada',
'track_number': 5,
'disc_number': 1,
'duration_sec': 379,
'stream_url': '/api/tracks/tr-1/stream',
});
expect(t.title, 'Music Is Math');
expect(t.trackNumber, 5);
expect(t.discNumber, 1);
expect(t.durationSec, 379);
expect(t.streamUrl, '/api/tracks/tr-1/stream');
});
test('leaves track_number and disc_number null when omitted', () {
final t = TrackRef.fromJson({
'id': 'tr-2',
'title': 'Hidden',
'album_id': 'al-1',
'artist_id': 'art-1',
});
expect(t.trackNumber, isNull);
expect(t.discNumber, isNull);
});
});
group('HomeData.fromJson', () {
test('handles missing sections as empty lists', () {
final h = HomeData.fromJson({});
expect(h.recentlyAddedAlbums, isEmpty);
expect(h.rediscoverAlbums, isEmpty);
expect(h.rediscoverArtists, isEmpty);
expect(h.mostPlayedTracks, isEmpty);
expect(h.lastPlayedArtists, isEmpty);
});
test('parses populated payload across all five sections', () {
final h = HomeData.fromJson({
'recently_added_albums': [
{
'id': 'al-1',
'title': 'Geogaddi',
'artist_id': 'art-1',
'artist_name': 'Boards of Canada',
'cover_url': '/api/albums/al-1/cover',
}
],
'rediscover_albums': [
{
'id': 'al-2',
'title': 'Music Has the Right to Children',
'artist_id': 'art-1',
'artist_name': 'Boards of Canada',
}
],
'rediscover_artists': [
{'id': 'art-2', 'name': 'Aphex Twin'}
],
'most_played_tracks': [
{
'id': 'tr-1',
'title': 'Roygbiv',
'album_id': 'al-2',
'artist_id': 'art-1',
'duration_sec': 150,
}
],
'last_played_artists': [
{'id': 'art-3', 'name': 'Tycho'}
],
});
expect(h.recentlyAddedAlbums.single.title, 'Geogaddi');
expect(h.recentlyAddedAlbums.single.coverUrl, '/api/albums/al-1/cover');
expect(h.rediscoverAlbums.single.id, 'al-2');
expect(h.rediscoverArtists.single.name, 'Aphex Twin');
expect(h.mostPlayedTracks.single.durationSec, 150);
expect(h.lastPlayedArtists.single.name, 'Tycho');
});
});
}