HealthTracker/firestore.rules at master · ClickCopyPaste/HealthTracker · GitHub

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rules_version = '2';

service cloud.firestore {
  match /databases/{database}/documents {

    // ─── USERS ───────────────────────────────────────────────────────────────
    // Users can only read/write their own profile
    match /users/{userId} {
      allow read, write: if request.auth != null && request.auth.uid == userId;
    }

    // ─── FOOD ENTRIES ─────────────────────────────────────────────────────────
    // Users can only access their own food entries
    match /food_entries/{entryId} {
      allow read, write: if request.auth != null &&
        request.auth.uid == resource.data.userId;
      allow create: if request.auth != null &&
        request.auth.uid == request.resource.data.userId;
    }

    // ─── WORKOUT ENTRIES ──────────────────────────────────────────────────────
    match /workout_entries/{entryId} {
      allow read, write: if request.auth != null &&
        request.auth.uid == resource.data.userId;
      allow create: if request.auth != null &&
        request.auth.uid == request.resource.data.userId;
    }

    // ─── DAILY SUMMARIES ──────────────────────────────────────────────────────
    // Document ID format: "userId_YYYY-MM-DD"
    match /daily_summaries/{summaryId} {
      allow read, write: if request.auth != null &&
        request.auth.uid == resource.data.userId;
      allow create: if request.auth != null &&
        request.auth.uid == request.resource.data.userId;
    }
  }
}