feat(meditate): the dream journal, a fourth tab, Today's morning card

ADR 0038, D14. A dream (`Dream`) holds the night it belongs to (the
morning's date, today's by default), an optional title, its text, the
marks lucid, nightmare and recurring, a clarity of 1 to 5, the mood on
waking and free labels, and when it was written; a row each in `dream`,
sealed for its row with the person's key as the sittings
(`DreamRepository` on `SealedRows`, `SyncDreamGateway`), followed by
`JournalCubit` for every screen.

- The Journal, between Explore and Profile: dreams by month, the
  newest first, searched over title, text and labels as Explore
  searches, filtered by marks, `+` above the bar; empty, it says that
  entries are sealed on the device before they sync.
- A dream's screen over the tabs: a new one with its text first and
  focused, the rest folded below; a kept one to read, with Edit and
  Delete (asked first); leaving one written but not saved asks first.
- Today, from 4 to 12 o'clock while last night has no dream, a gentle
  card leading to a new one; Settings' Journal card switches it off
  (`dreamPrompt` in the sealed settings, schema 1 kept).
- Profile's Practice: this month's dreams and the lucid ones, once the
  journal holds one.
- English and German texts; What's new 0.1.0 names the journal; the
  account's deletion says it takes the dreams too.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>

apps/meditate/halkyon_meditate_flutter/test/feature/journal/dream_repository_test.dart

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+import 'dart:convert';
+import 'dart:typed_data';
+
+import 'package:flutter_test/flutter_test.dart';
+import 'package:halkyon_app/halkyon_app.dart';
+import 'package:halkyon_meditate_flutter/src/core/privacy/meditate_keys.dart';
+import 'package:halkyon_meditate_flutter/src/feature/journal/data/dream_payload.dart';
+import 'package:halkyon_meditate_flutter/src/feature/journal/data/dream_repository.dart';
+import 'package:halkyon_meditate_flutter/src/feature/journal/model/dream.dart';
+
+import '../../support/memory_content_key_gateway.dart';
+import '../../support/memory_sealed_row_gateway.dart';
+
+/// The dreams the person wrote down (ADR 0038, D14): each a row sealed with
+/// their key for its row, as the sittings, the newest night first, none
+/// readable to the instance, changed and deleted by the person alone.
+void main() {
+  final crypto = SodiumAccountCrypto();
+  late UnlockedAccountKeys alice;
+  late UnlockedAccountKeys bob;
+  late MemoryContentKeyGateway keyRows;
+  late MemorySealedRowGateway rows;
+  final opened = <MeditateKeys>[];
+
+  final lighthouse = Dream(
+    night: DateTime.utc(2026, 11, 3),
+    title: 'The lighthouse',
+    text: 'I flew over the sea to my grandmother.',
+    marks: const {DreamMark.lucid, DreamMark.recurring},
+    clarity: 4,
+    mood: WakingMood.glad,
+    labels: const ['Grandmother', 'Sea'],
+    writtenAt: DateTime.utc(2026, 11, 3, 6, 40),
+  );
+  final exam = Dream(
+    night: DateTime.utc(2026, 11),
+    text: 'Late for an exam.',
+    writtenAt: DateTime.utc(2026, 11, 3, 7),
+  );
+
+  Future<DreamRepository> device(UnlockedAccountKeys? account) async {
+    final keys = MeditateKeys(
+      keyRows,
+      SodiumContentCipher(),
+      () async => account,
+    );
+    opened.add(keys);
+    await keys.refresh();
+    return DreamRepository(rows, keys);
+  }
+
+  setUpAll(() async {
+    alice = (await crypto.newAccount('alice password')).keys;
+    bob = (await crypto.newAccount('bob password')).keys;
+  });
+
+  setUp(() {
+    keyRows = MemoryContentKeyGateway();
+    rows = MemorySealedRowGateway();
+  });
+
+  tearDown(() {
+    for (final keys in opened) {
+      keys.dispose();
+    }
+    opened.clear();
+  });
+
+  test('a dream written reads back whole, the newest night first, on every '
+      'device of the person', () async {
+    final phone = await device(alice);
+    await phone.add(exam);
+    await phone.add(lighthouse);
+
+    final laptop = await device(alice);
+    expect(
+      [for (final stored in await laptop.all()) stored.dream],
+      [lighthouse, exam],
+    );
+  });
+
+  test('sealed: the instance reads neither its words, its labels nor its '
+      'marks', () async {
+    final phone = await device(alice);
+    await phone.add(lighthouse);
+
+    final envelope = rows.byId.values.single;
+    expect(envelope.keyId, isNotNull);
+    final bytes = String.fromCharCodes(envelope.payload.buffer.asUint8List());
+    for (final word in ['lighthouse', 'grandmother', 'Sea', 'lucid']) {
+      expect(bytes, isNot(contains(word)));
+    }
+  });
+
+  test("another person's dreams never open, and are left out", () async {
+    final phone = await device(alice);
+    await phone.add(lighthouse);
+
+    final bobs = await device(bob);
+    expect(await bobs.all(), isEmpty);
+  });
+
+  test('a device without the keys writes nothing', () async {
+    final keyless = await device(null);
+    await expectLater(keyless.add(lighthouse), throwsA(isA<KeysMissing>()));
+    expect(rows.byId, isEmpty);
+  });
+
+  test('a dream changed keeps its row; deleted, it goes', () async {
+    final phone = await device(alice);
+    final id = await phone.add(exam);
+
+    final changed = exam.copyWith(title: 'Exams again', clarity: () => 2);
+    await phone.update(id, changed);
+    expect(await phone.all(), [(id: id, dream: changed)]);
+
+    await phone.delete(id);
+    expect(await phone.all(), isEmpty);
+    expect(rows.byId, isEmpty);
+  });
+
+  test("a row the instance moved to another's ID doesn't open", () async {
+    final phone = await device(alice);
+    final id = await phone.add(lighthouse);
+    rows.byId['019a0000-0000-7000-8000-000000000000'] = rows.byId.remove(id)!;
+
+    expect(await phone.all(), isEmpty);
+  });
+
+  group('its payload (schema 1)', () {
+    Map<String, Object?> json(ByteData payload) =>
+        jsonDecode(utf8.decode(Uint8List.sublistView(payload)))
+            as Map<String, Object?>;
+
+    ByteData payload(Map<String, Object?> json) => ByteData.sublistView(
+      Uint8List.fromList(utf8.encode(jsonEncode(json))),
+    );
+
+    test('a bare dream is its night, text and time alone', () {
+      expect(json(encodeDream(exam)), {
+        'schemaVersion': dreamSchemaVersion,
+        'night': '2026-11-01',
+        'text': 'Late for an exam.',
+        'writtenAt': '2026-11-03T07:00:00.000Z',
+      });
+    });
+
+    test('a value this version does not know reads as none', () {
+      expect(
+        decodeDream(
+          payload({
+            'schemaVersion': 1,
+            'night': '2026-11-01',
+            'text': 'Late for an exam.',
+            'writtenAt': '2026-11-03T07:00:00.000Z',
+            'marks': ['lucid', 'flying'],
+            'clarity': 9,
+            'mood': 'elated',
+            'labels': ['School', 3],
+          }),
+        ),
+        exam.copyWith(marks: {DreamMark.lucid}, labels: ['School']),
+      );
+    });
+
+    test('a newer schema is not read half', () {
+      expect(
+        decodeDream(payload({'schemaVersion': dreamSchemaVersion + 1})),
+        isNull,
+      );
+    });
+  });
+}

apps/meditate/halkyon_meditate_flutter/test/feature/journal/journal_test.dart

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+import 'package:flutter_test/flutter_test.dart';
+import 'package:halkyon_meditate_flutter/src/feature/journal/model/dream.dart';
+import 'package:halkyon_meditate_flutter/src/feature/journal/model/journal.dart';
+
+/// The journal's reading of the dreams (ADR 0038, D14): the night a new one
+/// belongs to, Today's morning card, the search and the marks' filters, the
+/// months, the figures and the labels offered.
+void main() {
+  Dream dream(
+    DateTime night, {
+    String title = '',
+    String text = 'A house by the sea.',
+    Set<DreamMark> marks = const {},
+    List<String> labels = const [],
+    DateTime? writtenAt,
+  }) => Dream(
+    night: night,
+    title: title,
+    text: text,
+    marks: marks,
+    labels: labels,
+    writtenAt: writtenAt ?? night.add(const Duration(hours: 7)),
+  );
+
+  StoredDream stored(String id, Dream dream) => (id: id, dream: dream);
+
+  group('a new dream', () {
+    test("belongs to last night: the morning's date, at any hour", () {
+      expect(
+        defaultNight(DateTime(2026, 11, 3, 6, 30)),
+        DateTime.utc(2026, 11, 3),
+      );
+      expect(
+        defaultNight(DateTime(2026, 11, 3, 23)),
+        DateTime.utc(2026, 11, 3),
+      );
+      expect(
+        defaultNight(DateTime(2026, 11, 3, 0, 15)),
+        DateTime.utc(2026, 11, 3),
+      );
+    });
+  });
+
+  group("Today's morning card", () {
+    final night = DateTime.utc(2026, 11, 3);
+
+    test("shows from 4 to 12 o'clock while last night has no dream", () {
+      for (final hour in [4, 8, 11]) {
+        expect(
+          dreamPromptDue(
+            now: DateTime(2026, 11, 3, hour),
+            on: true,
+            dreams: [],
+          ),
+          isTrue,
+          reason: "$hour o'clock",
+        );
+      }
+    });
+
+    test('shows neither before 4 nor from 12 on', () {
+      for (final hour in [0, 3, 12, 18]) {
+        expect(
+          dreamPromptDue(
+            now: DateTime(2026, 11, 3, hour),
+            on: true,
+            dreams: [],
+          ),
+          isFalse,
+          reason: "$hour o'clock",
+        );
+      }
+    });
+
+    test(
+      "goes once last night has a dream; an older night's doesn't count",
+      () {
+        final now = DateTime(2026, 11, 3, 8);
+        expect(
+          dreamPromptDue(now: now, on: true, dreams: [dream(night)]),
+          isFalse,
+        );
+        expect(
+          dreamPromptDue(
+            now: now,
+            on: true,
+            dreams: [dream(DateTime.utc(2026, 11, 2))],
+          ),
+          isTrue,
+        );
+      },
+    );
+
+    test('never shows where it was switched off in Settings', () {
+      expect(
+        dreamPromptDue(now: DateTime(2026, 11, 3, 8), on: false, dreams: []),
+        isFalse,
+      );
+    });
+  });
+
+  group('the search and the filters', () {
+    final sea = stored(
+      'a',
+      dream(
+        DateTime.utc(2026, 11, 3),
+        title: 'The lighthouse',
+        text: 'I flew over the sea.',
+        marks: {DreamMark.lucid},
+        labels: ['Grandmother', 'Sea'],
+      ),
+    );
+    final school = stored(
+      'b',
+      dream(
+        DateTime.utc(2026, 11),
+        title: 'Exams again',
+        text: 'Late for an exam at my old school.',
+        marks: {DreamMark.nightmare, DreamMark.recurring},
+        labels: ['School'],
+      ),
+    );
+    final all = [sea, school];
+
+    test('searches the title, the text and the labels, without case or '
+        'accents', () {
+      expect(findDreams(all, query: 'LIGHTHOUSE'), [sea]);
+      expect(findDreams(all, query: 'exam school'), [school]);
+      expect(findDreams(all, query: 'grandmother'), [sea]);
+      expect(findDreams(all, query: 'séa'), [sea]);
+      expect(findDreams(all, query: 'mountain'), isEmpty);
+      expect(findDreams(all), all);
+    });
+
+    test(
+      'a dream shows under the marks chosen only where it has every one',
+      () {
+        expect(findDreams(all, marks: {DreamMark.lucid}), [sea]);
+        expect(findDreams(all, marks: {DreamMark.recurring}), [school]);
+        expect(
+          findDreams(all, marks: {DreamMark.lucid, DreamMark.nightmare}),
+          isEmpty,
+        );
+      },
+    );
+  });
+
+  test('the months, newest first, each with its dreams newest first', () {
+    final early = stored('a', dream(DateTime.utc(2026, 10, 2)));
+    final late = stored('b', dream(DateTime.utc(2026, 10, 28)));
+    final now = stored('c', dream(DateTime.utc(2026, 11, 3)));
+    final months = dreamsByMonth([now, late, early]);
+    expect(
+      [for (final month in months) month.month],
+      [
+        DateTime.utc(2026, 11),
+        DateTime.utc(2026, 10),
+      ],
+    );
+    expect(months.last.dreams, [late, early]);
+  });
+
+  test("the figures: this month's dreams and the lucid ones of all", () {
+    final dreams = [
+      dream(DateTime.utc(2026, 11, 3), marks: {DreamMark.lucid}),
+      dream(DateTime.utc(2026, 11)),
+      dream(DateTime.utc(2026, 10, 30), marks: {DreamMark.lucid}),
+    ];
+    expect(
+      journalFigures(dreams, today: DateTime.utc(2026, 11, 3)),
+      (thisMonth: 2, lucid: 2),
+    );
+  });
+
+  test('the labels offered: those used, the most used first, each once '
+      'whatever its case', () {
+    final dreams = [
+      dream(DateTime.utc(2026, 11, 3), labels: ['Sea', 'Grandmother']),
+      dream(DateTime.utc(2026, 11, 2), labels: ['sea']),
+      dream(DateTime.utc(2026, 11), labels: ['School']),
+    ];
+    expect(labelsUsed(dreams), ['Sea', 'Grandmother', 'School']);
+  });
+
+  test('a label is added trimmed, once whatever its case, never empty', () {
+    expect(withLabel(['Sea'], '  school '), ['Sea', 'school']);
+    expect(withLabel(['Sea'], 'SEA'), ['Sea']);
+    expect(withLabel(['Sea'], '   '), ['Sea']);
+  });
+}