# FitAI Report Generation System - Quick Reference

## 🚀 Quick Start

### 1. Run Admin App

```bash
cd apps/admin
npm run dev
# Visit http://localhost:3000
```

### 2. Navigate to Reports

- **URL**: `/reports`
- **Features**: User selection, date range picker, PDF export

### 3. Manage Trainer Assignments

- **URL**: `/trainer-clients`
- **Features**: Assign trainers to clients, view active/inactive assignments

## 📊 Key Features

| Feature             | Status      | Location             |
| ------------------- | ----------- | -------------------- |
| Weekly Check-ins    | ✅ Complete | Reports page         |
| Nutrition Tracking  | ✅ Complete | Reports page         |
| Hydration Tracking  | ✅ Complete | Reports page         |
| Fitness Goals       | ✅ Complete | Reports page         |
| AI Recommendations  | ✅ Complete | Reports page         |
| PDF Export          | ✅ Complete | Reports page         |
| Trainer Assignments | ✅ Complete | Trainer-clients page |
| Role-based Access   | ✅ Complete | All pages            |

## 🔑 Access Control

```
Client ──────────► Own report only
Trainer ─────────► Assigned clients
Admin ───────────► Gym users
SuperAdmin ───────► All users
```

## 📡 API Endpoints

### Reports

```
GET /api/reports/user/[userId]?startDate=X&endDate=Y&format=json|pdf
```

### Trainer-Client

```
GET    /api/trainer-client           # List assignments
POST   /api/trainer-client           # Create assignment
DELETE /api/trainer-client/[id]      # Deactivate assignment
```

### Nutrition

```
GET    /api/nutrition?date=X|startDate=X&endDate=Y  # Get nutrition
POST   /api/nutrition                                   # Save nutrition
DELETE /api/nutrition?id=X                              # Delete nutrition
```

### Hydration

```
GET    /api/hydration?date=X|startDate=X&endDate=Y     # Get hydration
POST   /api/hydration                                  # Save hydration
DELETE /api/hydration?id=X                             # Delete hydration
```

## 🗄️ Database Tables

| Table                        | Purpose                      |
| ---------------------------- | ---------------------------- |
| `daily_nutrition`            | Daily calorie tracking       |
| `meal_entries`               | Individual meal details      |
| `daily_hydration`            | Daily water intake           |
| `fitness_profile_history`    | Weight/height changes        |
| `trainer_client_assignments` | Trainer-client relationships |

## 🎨 UI Pages

| Page            | URL                | Purpose               |
| --------------- | ------------------ | --------------------- |
| Reports         | `/reports`         | Generate user reports |
| Trainer-Clients | `/trainer-clients` | Manage assignments    |

## 📦 Mobile Integration

### Hydration

```typescript
import { useHydration } from "../contexts/HydrationContext";

const { todayTotal, addWater } = useHydration();
await addWater(250); // Adds 250ml
```

### Nutrition

```typescript
import { useNutrition } from "../contexts/NutritionContext";

const { todayCalories, addMeal } = useNutrition();
await addMeal({
  mealType: "breakfast",
  foodName: "Oatmeal",
  calories: 300,
});
```

## 🧪 Testing

```bash
# Run tests
cd apps/admin
npm test

# View testing guide
open docs/TESTING_GUIDE.md
```

## 📝 Example Usage

### 1. Create Trainer-Client Assignment

```bash
curl -X POST http://localhost:3000/api/trainer-client \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer <ADMIN_TOKEN>" \
  -d '{"trainerId": "...", "clientId": "..."}'
```

### 2. Generate Report

```bash
curl "http://localhost:3000/api/reports/user/<USER_ID>?startDate=2024-01-01&endDate=2024-01-31" \
  -H "Authorization: Bearer <TOKEN>"
```

### 3. Download PDF

```bash
curl "http://localhost:3000/api/reports/user/<USER_ID>?format=pdf" \
  -H "Authorization: Bearer <TOKEN>" \
  --output report.pdf
```

## 🔍 Validation Rules

| Validation       | Rule              |
| ---------------- | ----------------- |
| Date Format      | YYYY-MM-DD only   |
| Future Dates     | Allowed           |
| Max Date Range   | No limit          |
| Delete Ownership | Must own resource |

## 📊 Report Sections

1. **User Information** - Name, email, membership
2. **Report Period** - Start/end dates
3. **Weekly Check-ins** - ISO weeks (Mon-Sun)
4. **Nutrition Summary** - Calories, goal achievement
5. **Hydration Summary** - Water intake, goal %
6. **Fitness Goals** - Active/completed with progress
7. **Profile Changes** - Historical data
8. **Recommendations** - Accepted/rejected/pending

## 🎯 Success Criteria

- ✅ All 9 phases completed
- ✅ TypeScript 100% type-safe
- ✅ Role-based access enforced
- ✅ PDF export working
- ✅ Mobile sync functional
- ✅ Tests passing

## 📞 Support

- **Docs**: `docs/TESTING_GUIDE.md`
- **Summary**: `docs/IMPLEMENTATION_SUMMARY.md`
- **Tests**: `apps/admin/src/app/api/reports/__tests__/`

---

**Status**: ✅ Production Ready  
**Last Updated**: March 2024