feat: add journey stats and history detail

2026-06-12 01:26:19 +08:00
parent b287a56731
commit eb8b209c0c
10 changed files with 701 additions and 1 deletions
@@ -0,0 +1,50 @@
+import '../core/date_keys.dart';
+import 'app_state.dart';
+
+class JourneyStats {
+  const JourneyStats({
+    required this.currentStreakDays,
+    required this.weekFocusMinutes,
+    required this.activeDaysThisWeek,
+    required this.habitCompletionRate,
+  });
+
+  final int currentStreakDays;
+  final int weekFocusMinutes;
+  final int activeDaysThisWeek;
+  final double habitCompletionRate;
+
+  static JourneyStats fromState(AppState state) {
+    final dateKeys = lastSevenDateKeys();
+    final dateKeySet = dateKeys.toSet();
+    final weekFocusMinutes = dateKeys.fold<int>(
+      0,
+      (total, key) => total + minutesForDate(state.sessions, key),
+    );
+    final activeDays = dateKeys.where((key) => _hasProgress(state, key)).length;
+    final habitCompletions = state.habits.fold<int>(
+      0,
+      (total, habit) =>
+          total + habit.completedDates.where(dateKeySet.contains).length,
+    );
+    final habitOpportunities = state.habits.length * dateKeys.length;
+
+    return JourneyStats(
+      currentStreakDays: currentStreak(
+        state.habits,
+        state.sessions,
+        state.reflections,
+      ),
+      weekFocusMinutes: weekFocusMinutes,
+      activeDaysThisWeek: activeDays,
+      habitCompletionRate:
+          habitOpportunities == 0 ? 0 : habitCompletions / habitOpportunities,
+    );
+  }
+
+  static bool _hasProgress(AppState state, String key) {
+    return state.habits.any((habit) => habit.completedDates.contains(key)) ||
+        state.sessions.any((session) => dateKey(session.completedAt) == key) ||
+        state.reflections.any((reflection) => reflection.dateKey == key);
+  }
+}