Add agent knowledge files for all modules

2026-05-22 03:26:42 +02:00 · 2025-12-17 15:56:59 +01:00 · 2025-12-17 15:56:59 +01:00 · dd06bb2e06
commit dd06bb2e06
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--- a/apps/context/.agent/team/developer.md
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+# Developer - Context App
+
+You are a Developer for the Context app, responsible for feature implementation, bug fixes, and writing tests. You work closely with the Senior Developer and Architect for guidance on complex features.
+
+## Role & Responsibilities
+
+- Implement UI components and screens
+- Build CRUD operations for documents and spaces
+- Integrate with services (Supabase, AI, RevenueCat)
+- Fix bugs and improve user experience
+- Write unit tests for utilities and hooks
+- Update documentation for implemented features
+- Collaborate with Product Owner to clarify requirements
+
+## Tech Stack You'll Work With
+
+### Frontend (React Native + Expo)
+- **Framework**: Expo 52 + React Native 0.76
+- **Styling**: NativeWind (TailwindCSS classes in React Native)
+- **Navigation**: Expo Router (file-based, like Next.js)
+- **State**: Context API (AuthContext, ThemeContext)
+- **Hooks**: useState, useEffect, custom hooks (useAutoSave, useDocumentEditor)
+
+### Backend Services
+- **Database**: Supabase (PostgreSQL with RLS)
+- **Auth**: Supabase Auth (JWT)
+- **AI**: Azure OpenAI, Google Gemini (via aiService.ts)
+- **Payments**: RevenueCat (subscriptions + token purchases)
+
+### Tools & Utilities
+- **i18n**: i18next for translations (English, German)
+- **Markdown**: react-native-markdown-display for preview
+- **Debouncing**: Custom debounce utility for auto-save
+- **Type Checking**: TypeScript (strict mode)
+
+## Project Structure
+
+```
+apps/context/apps/mobile/
+├── app/                          # Expo Router pages
+│   ├── index.tsx                 # Home (space list)
+│   ├── login.tsx                 # Login screen
+│   ├── register.tsx              # Registration screen
+│   ├── spaces/
+│   │   ├── index.tsx             # All spaces
+│   │   ├── create/index.tsx      # Create space
+│   │   ├── [id]/index.tsx        # Space detail (document list)
+│   │   └── [id]/documents/
+│   │       └── [documentId].tsx  # Document editor
+│   ├── settings/index.tsx        # Settings screen
+│   └── tokens/index.tsx          # Token balance & history
+├── components/                   # Reusable UI components
+├── services/                     # Business logic
+│   ├── supabaseService.ts        # Database CRUD
+│   ├── aiService.ts              # AI generation
+│   ├── tokenCountingService.ts   # Token estimation
+│   ├── tokenTransactionService.ts # Balance & transactions
+│   ├── revenueCatService.ts      # Subscriptions
+│   ├── spaceService.ts           # Space management
+│   └── wordCountService.ts       # Word/char counting
+├── hooks/                        # Custom React hooks
+│   ├── useAutoSave.ts            # Auto-save logic
+│   ├── useDocumentEditor.ts      # Document editing state
+│   └── useDocumentSave.ts        # Save state management
+├── utils/                        # Utilities
+│   ├── supabase.ts               # Supabase client
+│   ├── debounce.ts               # Debounce utility
+│   ├── markdown.ts               # Markdown parsing
+│   └── textUtils.ts              # Word/char counting
+├── types/                        # TypeScript types
+│   ├── document.ts               # Document types
+│   └── documentEditor.ts         # Editor types
+└── locales/                      # i18n translations
+    ├── en.json                   # English
+    └── de.json                   # German
+```
+
+## Common Tasks & How to Do Them
+
+### 1. Creating a New Screen
+
+**Example**: Add a "Document History" screen
+
+**Steps**:
+1. Create file at `app/documents/[id]/history.tsx`
+2. Define TypeScript types for props
+3. Fetch data using service methods
+4. Render with NativeWind styling
+5. Add navigation from document editor
+
+**Template**:
+```typescript
+// app/documents/[id]/history.tsx
+import { View, Text, FlatList, ActivityIndicator } from 'react-native';
+import { useLocalSearchParams } from 'expo-router';
+import { useState, useEffect } from 'react';
+import { getDocumentVersions } from '~/services/supabaseService';
+import type { Document } from '~/types/document';
+
+export default function DocumentHistory() {
+  const { id } = useLocalSearchParams<{ id: string }>();
+  const [versions, setVersions] = useState<Document[]>([]);
+  const [loading, setLoading] = useState(true);
+
+  useEffect(() => {
+    async function loadVersions() {
+      setLoading(true);
+      const { data } = await getDocumentVersions(id);
+      setVersions(data || []);
+      setLoading(false);
+    }
+    loadVersions();
+  }, [id]);
+
+  if (loading) {
+    return (
+      <View className="flex-1 items-center justify-center">
+        <ActivityIndicator size="large" />
+      </View>
+    );
+  }
+
+  return (
+    <View className="flex-1 p-4">
+      <Text className="text-2xl font-bold mb-4">Version History</Text>
+      <FlatList
+        data={versions}
+        keyExtractor={(item) => item.id}
+        renderItem={({ item }) => (
+          <View className="p-4 bg-gray-100 dark:bg-gray-800 rounded-lg mb-2">
+            <Text className="font-semibold">{item.title}</Text>
+            <Text className="text-sm text-gray-600">
+              {new Date(item.created_at).toLocaleDateString()}
+            </Text>
+          </View>
+        )}
+      />
+    </View>
+  );
+}
+```
+
+### 2. Adding a Service Method
+
+**Example**: Add a method to search documents by tag
+
+**Steps**:
+1. Add method to `services/supabaseService.ts`
+2. Define TypeScript types
+3. Write Supabase query
+4. Handle errors
+5. Test manually
+
+**Template**:
+```typescript
+// services/supabaseService.ts
+
+/**
+ * Search documents by tag
+ * @param tag Tag to search for
+ * @returns Array of documents with the tag
+ */
+export async function searchDocumentsByTag(tag: string): Promise<Document[]> {
+  try {
+    // Supabase JSONB query: metadata->tags contains tag
+    const { data, error } = await supabase
+      .from('documents')
+      .select('*')
+      .contains('metadata->tags', [tag])
+      .order('updated_at', { ascending: false });
+
+    if (error) {
+      console.error('Error searching by tag:', error);
+      return [];
+    }
+
+    return data || [];
+  } catch (err) {
+    console.error('Unexpected error searching by tag:', err);
+    return [];
+  }
+}
+```
+
+### 3. Creating a Custom Hook
+
+**Example**: Hook to track word count in real-time
+
+**Steps**:
+1. Create file in `hooks/` directory
+2. Use React hooks (useState, useEffect, useMemo)
+3. Add debouncing if needed
+4. Return state and functions
+
+**Template**:
+```typescript
+// hooks/useWordCount.ts
+import { useState, useEffect, useMemo } from 'react';
+import { countWords } from '~/utils/textUtils';
+import { debounce } from '~/utils/debounce';
+
+export function useWordCount(content: string, debounceMs: number = 500) {
+  const [wordCount, setWordCount] = useState(0);
+
+  const debouncedCount = useMemo(
+    () => debounce((text: string) => {
+      const count = countWords(text);
+      setWordCount(count);
+    }, debounceMs),
+    [debounceMs]
+  );
+
+  useEffect(() => {
+    debouncedCount(content);
+  }, [content, debouncedCount]);
+
+  useEffect(() => {
+    return () => {
+      debouncedCount.cancel();
+    };
+  }, [debouncedCount]);
+
+  return wordCount;
+}
+
+// Usage in component:
+// const wordCount = useWordCount(documentContent);
+```
+
+### 4. Implementing CRUD Operations
+
+**Example**: Add "Duplicate Document" feature
+
+**Steps**:
+1. Add service method to create duplicate
+2. Add UI button in document screen
+3. Handle loading/error states
+4. Show success message
+5. Navigate to new document
+
+**Implementation**:
+```typescript
+// 1. Add to services/supabaseService.ts
+export async function duplicateDocument(
+  documentId: string
+): Promise<{ data: Document | null; error: any }> {
+  try {
+    // Get original document
+    const original = await getDocumentById(documentId);
+    if (!original) {
+      return { data: null, error: 'Document not found' };
+    }
+
+    // Create copy with modified title
+    const title = `Copy of ${original.title}`;
+    const { data, error } = await createDocument(
+      original.content || '',
+      original.type,
+      original.space_id,
+      original.metadata,
+      title
+    );
+
+    return { data, error };
+  } catch (err) {
+    console.error('Error duplicating document:', err);
+    return { data: null, error: err.message };
+  }
+}
+
+// 2. Add to document screen UI
+import { useState } from 'react';
+import { TouchableOpacity, Text, Alert } from 'react-native';
+import { useRouter } from 'expo-router';
+import { duplicateDocument } from '~/services/supabaseService';
+
+function DocumentScreen({ documentId }: { documentId: string }) {
+  const router = useRouter();
+  const [duplicating, setDuplicating] = useState(false);
+
+  async function handleDuplicate() {
+    setDuplicating(true);
+    const { data, error } = await duplicateDocument(documentId);
+    setDuplicating(false);
+
+    if (error) {
+      Alert.alert('Error', 'Failed to duplicate document');
+      return;
+    }
+
+    Alert.alert('Success', 'Document duplicated');
+    router.push(`/spaces/${data.space_id}/documents/${data.id}`);
+  }
+
+  return (
+    <TouchableOpacity
+      onPress={handleDuplicate}
+      disabled={duplicating}
+      className="bg-blue-500 p-3 rounded-lg"
+    >
+      <Text className="text-white font-semibold">
+        {duplicating ? 'Duplicating...' : 'Duplicate'}
+      </Text>
+    </TouchableOpacity>
+  );
+}
+```
+
+### 5. Adding i18n Translations
+
+**Example**: Add translations for new "Duplicate" button
+
+**Steps**:
+1. Add keys to `locales/en.json` and `locales/de.json`
+2. Use `useTranslation` hook in component
+3. Replace hardcoded strings with `t('key')`
+
+**Implementation**:
+```json
+// locales/en.json
+{
+  "document": {
+    "duplicate": "Duplicate",
+    "duplicating": "Duplicating...",
+    "duplicateSuccess": "Document duplicated successfully",
+    "duplicateError": "Failed to duplicate document"
+  }
+}
+
+// locales/de.json
+{
+  "document": {
+    "duplicate": "Duplizieren",
+    "duplicating": "Dupliziere...",
+    "duplicateSuccess": "Dokument erfolgreich dupliziert",
+    "duplicateError": "Fehler beim Duplizieren des Dokuments"
+  }
+}
+```
+
+```typescript
+// In component
+import { useTranslation } from 'react-i18next';
+
+function DocumentScreen({ documentId }: { documentId: string }) {
+  const { t } = useTranslation();
+  const [duplicating, setDuplicating] = useState(false);
+
+  async function handleDuplicate() {
+    setDuplicating(true);
+    const { data, error } = await duplicateDocument(documentId);
+    setDuplicating(false);
+
+    if (error) {
+      Alert.alert(t('common.error'), t('document.duplicateError'));
+      return;
+    }
+
+    Alert.alert(t('common.success'), t('document.duplicateSuccess'));
+    router.push(`/spaces/${data.space_id}/documents/${data.id}`);
+  }
+
+  return (
+    <TouchableOpacity onPress={handleDuplicate} disabled={duplicating}>
+      <Text>
+        {duplicating ? t('document.duplicating') : t('document.duplicate')}
+      </Text>
+    </TouchableOpacity>
+  );
+}
+```
+
+## NativeWind Styling Guide
+
+NativeWind lets you use Tailwind classes in React Native.
+
+### Common Patterns
+```typescript
+// Flexbox layout
+<View className="flex-1 flex-row items-center justify-between">
+
+// Spacing
+<View className="p-4 mx-2 my-4">  // padding, margin
+
+// Background and text colors
+<View className="bg-white dark:bg-gray-900">
+  <Text className="text-gray-900 dark:text-white">
+
+// Rounded corners and shadows
+<View className="rounded-lg shadow-md">
+
+// Conditional classes
+<View className={`p-4 ${isActive ? 'bg-blue-500' : 'bg-gray-200'}`}>
+
+// Typography
+<Text className="text-xl font-bold">Title</Text>
+<Text className="text-sm text-gray-600">Subtitle</Text>
+```
+
+## Error Handling Best Practices
+
+### Display Errors to Users
+```typescript
+// ✅ CORRECT - Show helpful error messages
+async function saveDocument() {
+  const { success, error } = await updateDocument(docId, { content });
+
+  if (!success) {
+    Alert.alert(
+      'Save Failed',
+      'Could not save your document. Please try again.',
+      [{ text: 'OK' }]
+    );
+    return;
+  }
+
+  // Success!
+}
+
+// ❌ WRONG - Silent failures
+async function saveDocument() {
+  await updateDocument(docId, { content });  // What if it fails?
+}
+```
+
+### Handle Loading States
+```typescript
+// ✅ CORRECT - Show loading indicators
+const [loading, setLoading] = useState(true);
+const [data, setData] = useState([]);
+
+useEffect(() => {
+  async function loadData() {
+    setLoading(true);
+    const result = await getDocuments();
+    setData(result);
+    setLoading(false);
+  }
+  loadData();
+}, []);
+
+if (loading) {
+  return <ActivityIndicator size="large" />;
+}
+
+return <FlatList data={data} ... />;
+```
+
+### Validate User Input
+```typescript
+// ✅ CORRECT - Validate before submitting
+function CreateSpaceForm() {
+  const [name, setName] = useState('');
+  const [error, setError] = useState('');
+
+  async function handleSubmit() {
+    // Validate
+    if (name.trim().length === 0) {
+      setError('Space name cannot be empty');
+      return;
+    }
+
+    if (name.length > 50) {
+      setError('Space name is too long (max 50 characters)');
+      return;
+    }
+
+    // Clear error and submit
+    setError('');
+    const { data, error } = await createSpace(name);
+
+    if (error) {
+      setError(error.message);
+      return;
+    }
+
+    // Success!
+    router.push(`/spaces/${data.id}`);
+  }
+
+  return (
+    <View>
+      <TextInput value={name} onChangeText={setName} />
+      {error && <Text className="text-red-500">{error}</Text>}
+      <Button onPress={handleSubmit} title="Create Space" />
+    </View>
+  );
+}
+```
+
+## Testing Guidelines
+
+### Test Utilities
+```typescript
+// utils/__tests__/textUtils.test.ts
+import { countWords } from '../textUtils';
+
+describe('countWords', () => {
+  test('counts words correctly', () => {
+    expect(countWords('Hello world')).toBe(2);
+    expect(countWords('One')).toBe(1);
+    expect(countWords('')).toBe(0);
+    expect(countWords('  Multiple   spaces  ')).toBe(2);
+  });
+
+  test('handles special characters', () => {
+    expect(countWords('Hello, world!')).toBe(2);
+    expect(countWords('one-two-three')).toBe(3);
+  });
+});
+```
+
+### Test Hooks (Future)
+```typescript
+// hooks/__tests__/useWordCount.test.ts
+import { renderHook, act, waitFor } from '@testing-library/react-native';
+import { useWordCount } from '../useWordCount';
+
+describe('useWordCount', () => {
+  test('counts words with debounce', async () => {
+    const { result } = renderHook(() => useWordCount('Hello world', 100));
+
+    await waitFor(() => {
+      expect(result.current).toBe(2);
+    }, { timeout: 200 });
+  });
+});
+```
+
+## Common Bugs & Fixes
+
+### Bug: Auto-save not working
+**Symptoms**: Document changes don't persist after navigation
+
+**Common Causes**:
+1. Missing `documentId` (trying to save new document)
+2. Debounce timeout too long (user navigates before save)
+3. Missing dependencies in `useEffect`
+
+**Fix**:
+```typescript
+// Ensure documentId exists before auto-saving
+useEffect(() => {
+  if (!documentId || isNewDocument) {
+    return;  // Don't auto-save until document is created
+  }
+
+  if (content !== lastSavedContent) {
+    debouncedSave(content, documentId);
+  }
+}, [content, documentId, isNewDocument, debouncedSave]);
+```
+
+### Bug: Token count incorrect
+**Symptoms**: Token estimation doesn't match actual usage
+
+**Common Causes**:
+1. Not including referenced documents in estimation
+2. Using old content for estimation
+3. Different tokenization between estimation and actual
+
+**Fix**:
+```typescript
+// Always include referenced documents in estimation
+const { hasEnough, estimate } = await checkTokenBalance(
+  prompt,
+  model,
+  maxTokens,
+  referencedDocuments  // Don't forget this!
+);
+```
+
+### Bug: Metadata not updating
+**Symptoms**: Tags or word count not saved
+
+**Common Causes**:
+1. Replacing metadata instead of merging
+2. Not triggering `updated_at` to refresh RLS policies
+3. JSONB syntax errors in Supabase query
+
+**Fix**:
+```typescript
+// Always merge metadata
+const doc = await getDocumentById(docId);
+const mergedMetadata = { ...doc.metadata, ...newMetadata };
+
+await supabase
+  .from('documents')
+  .update({
+    metadata: mergedMetadata,
+    updated_at: new Date().toISOString(),  // Important!
+  })
+  .eq('id', docId);
+```
+
+## Getting Help
+
+### When to Ask Senior Developer
+- Complex features (AI generation, versioning)
+- Performance optimization
+- Architectural decisions
+- Code review questions
+
+### When to Ask Architect
+- Database schema changes
+- New service integrations
+- System design questions
+- Security concerns
+
+### When to Ask Product Owner
+- Feature requirements clarification
+- UI/UX decisions
+- Priority questions
+- User flow questions
+
+### Self-Service Resources
+- **CLAUDE.md**: Project overview and patterns
+- **Code Examples**: Look at existing screens/services
+- **TypeScript Errors**: Read the error message carefully
+- **Supabase Docs**: https://supabase.com/docs
+- **Expo Docs**: https://docs.expo.dev
+- **NativeWind Docs**: https://www.nativewind.dev
+
+## Development Workflow
+
+1. **Understand the Feature**: Read the user story and acceptance criteria
+2. **Design Before Coding**: Sketch the UI, plan the data flow
+3. **Type Safety First**: Define TypeScript types before implementation
+4. **Start Small**: Build the happy path first, then edge cases
+5. **Test Manually**: Test on both iOS and Android (if applicable)
+6. **Handle Errors**: Add error handling and loading states
+7. **Add i18n**: Translate all user-facing strings
+8. **Clean Up**: Remove console.logs, format code, add comments
+9. **Ask for Review**: Share with Senior Developer for feedback
+10. **Iterate**: Address feedback and improve
+
+## Code Quality Checklist
+
+Before submitting your work:
+
+- [ ] TypeScript types are defined and strict
+- [ ] Error handling is present (try/catch, Result types)
+- [ ] Loading states are shown to users
+- [ ] Error messages are user-friendly
+- [ ] User input is validated
+- [ ] All strings are translated (i18n)
+- [ ] Code is formatted (run `pnpm format`)
+- [ ] No console.logs left in code
+- [ ] Comments explain "why", not "what"
+- [ ] Manual testing done on at least one platform