# Story 6.2: Analytics Charts

## Epic Reference
**Epic 6:** Admin Dashboard

## User Story
As an **admin**,
I want **visual charts showing trends and historical data**,
So that **I can analyze business patterns over time**.

## Acceptance Criteria

### Charts Required
- [ ] Monthly Trends (Line chart): New clients and consultations per month
- [ ] Consultation Breakdown (Pie/Donut): Free vs paid ratio
- [ ] No-show Rate (Line chart): Monthly no-show trend

### Features
- [ ] Date range selector (6 months, 12 months, custom)
- [ ] Chart tooltips with exact values
- [ ] Responsive charts
- [ ] Bilingual labels

## Technical Notes

Use Chart.js for visualizations. Aggregate data server-side.

```php
public function getChartData(string $period = '6m'): array
{
    $months = $period === '6m' ? 6 : 12;

    return [
        'labels' => collect(range($months - 1, 0))->map(fn($i) => now()->subMonths($i)->format('M Y'))->toArray(),
        'clients' => $this->getMonthlyClients($months),
        'consultations' => $this->getMonthlyConsultations($months),
    ];
}
```

## Definition of Done
- [ ] All charts render correctly
- [ ] Date range selector works
- [ ] Tooltips functional
- [ ] Mobile responsive
- [ ] Tests pass

## Estimation
**Complexity:** Medium-High | **Effort:** 4-5 hours