# ANALISIS MODULO RT-008: REPORTES Y DASHBOARD

**Fecha:** 2025-12-18
**Fase:** 2 - Analisis por Modulo
**Modulo:** RT-008 Reportes
**Herencia:** 70%
**Story Points:** 30
**Prioridad:** P1

---

## 1. DESCRIPCION GENERAL

### 1.1 Proposito
Sistema de analytics con dashboards en tiempo real, reportes de ventas, inventario, clientes y metricas operativas.

### 1.2 Funcionalidades Principales

| Funcionalidad | Descripcion | Criticidad |
|---------------|-------------|------------|
| Dashboard principal | KPIs tiempo real | Alta |
| Reportes ventas | Por periodo/sucursal | Alta |
| Analisis productos | Top vendidos, ABC | Media |
| Reportes inventario | Stock, valoracion | Media |
| Exportacion | Excel, PDF | Media |

---

## 2. HERENCIA DEL CORE

### 2.1 Componentes Heredados (70%)

| Componente Core | % Uso | Accion |
|-----------------|-------|--------|
| MGN-009 Reports | 70% | EXTENDER |
| Analytics module | 100% | HEREDAR |

### 2.2 Servicios a Heredar

```typescript
import { ReportsService } from '@erp-core/reports';
import { AnalyticsService } from '@erp-core/analytics';
import { ExportService } from '@erp-core/reports';
```

---

## 3. COMPONENTES NUEVOS

### 3.1 Dashboard Principal

```typescript
interface RetailDashboard {
  // Metricas del dia
  today: {
    totalSales: number;
    totalTransactions: number;
    avgTicket: number;
    newCustomers: number;
    returningCustomers: number;
    pointsRedeemed: number;
    refunds: number;
  };

  // Comparativo
  comparison: {
    vsYesterday: PercentChange;
    vsLastWeek: PercentChange;
    vsLastMonth: PercentChange;
  };

  // Graficos
  charts: {
    salesByHour: TimeSeriesData[];
    salesByPaymentMethod: PieChartData[];
    topProducts: BarChartData[];
    topBranches: BarChartData[];
  };

  // Alertas
  alerts: {
    lowStock: number;
    pendingTransfers: number;
    unapprovedClosings: number;
  };
}
```

### 3.2 Tipos de Reportes

```typescript
// 1. Reporte de Ventas
interface SalesReport {
  period: DateRange;
  groupBy: 'day' | 'week' | 'month' | 'branch' | 'cashier';

  summary: {
    totalSales: number;
    totalTransactions: number;
    avgTicket: number;
    totalDiscounts: number;
    totalRefunds: number;
    netSales: number;
  };

  byPaymentMethod: {
    cash: number;
    card: number;
    transfer: number;
    credit: number;
    mixed: number;
  };

  details: SalesReportLine[];
}

// 2. Reporte de Productos
interface ProductReport {
  period: DateRange;
  branchId?: string;

  topSelling: ProductRanking[];
  slowMoving: ProductRanking[];
  noMovement: Product[];
  abcAnalysis: {
    A: Product[];  // 80% ventas
    B: Product[];  // 15% ventas
    C: Product[];  // 5% ventas
  };
}

// 3. Reporte de Inventario
interface InventoryReport {
  branchId?: string;

  summary: {
    totalProducts: number;
    totalValue: number;
    lowStockItems: number;
    outOfStockItems: number;
  };

  byCategory: CategoryStock[];
  lowStockAlerts: StockAlert[];
  valuationMethod: 'FIFO' | 'LIFO' | 'AVCO';
}

// 4. Reporte de Clientes
interface CustomerReport {
  period: DateRange;

  summary: {
    totalCustomers: number;
    newCustomers: number;
    activeCustomers: number;
    avgPurchaseFrequency: number;
  };

  topCustomers: CustomerRanking[];
  byMembershipLevel: MembershipBreakdown;
  loyaltyMetrics: {
    pointsIssued: number;
    pointsRedeemed: number;
    redemptionRate: number;
  };
}

// 5. Reporte de Caja
interface CashReport {
  period: DateRange;
  branchId?: string;

  closings: CashClosingSummary[];
  differences: {
    total: number;
    count: number;
    byReason: DifferenceBreakdown[];
  };
  movements: {
    totalIn: number;
    totalOut: number;
    byReason: MovementBreakdown[];
  };
}
```

### 3.3 Servicios Backend

| Servicio | Metodos Principales |
|----------|-------------------|
| DashboardService | getDashboard(), refresh() |
| SalesReportService | generate(), getByPeriod(), export() |
| ProductReportService | getTopSelling(), getABCAnalysis() |
| InventoryReportService | getStockReport(), getValuation() |
| CustomerReportService | getCustomerMetrics(), getLoyaltyStats() |
| CashReportService | getClosingsReport(), getDifferences() |
| ExportService | toExcel(), toPDF() |

### 3.4 Controladores

```typescript
@Controller('reports')
export class ReportsController {
  // Dashboard
  @Get('dashboard')
  getDashboard(@Query('branchId') branchId?: string): Promise<RetailDashboard>;

  // Ventas
  @Get('sales')
  getSalesReport(@Query() filters: SalesFilters): Promise<SalesReport>;

  @Get('sales/by-hour')
  getSalesByHour(@Query('date') date: string): Promise<HourlySales[]>;

  @Get('sales/by-cashier')
  getSalesByCashier(@Query() filters: DateFilters): Promise<CashierSales[]>;

  // Productos
  @Get('products/top-selling')
  getTopSelling(@Query() filters: ProductFilters): Promise<ProductRanking[]>;

  @Get('products/abc-analysis')
  getABCAnalysis(@Query('branchId') branchId?: string): Promise<ABCAnalysis>;

  @Get('products/slow-moving')
  getSlowMoving(@Query() filters: ProductFilters): Promise<Product[]>;

  // Inventario
  @Get('inventory')
  getInventoryReport(@Query('branchId') branchId?: string): Promise<InventoryReport>;

  @Get('inventory/valuation')
  getValuation(@Query('branchId') branchId?: string): Promise<ValuationReport>;

  // Clientes
  @Get('customers')
  getCustomerReport(@Query() filters: CustomerFilters): Promise<CustomerReport>;

  @Get('customers/loyalty')
  getLoyaltyMetrics(@Query() filters: DateFilters): Promise<LoyaltyMetrics>;

  // Caja
  @Get('cash/closings')
  getClosingsReport(@Query() filters: CashFilters): Promise<CashClosingSummary[]>;

  @Get('cash/differences')
  getDifferencesReport(@Query() filters: CashFilters): Promise<DifferenceReport>;

  // Exportacion
  @Get(':type/export/excel')
  exportToExcel(@Param('type') type: string, @Query() filters: any): Promise<Buffer>;

  @Get(':type/export/pdf')
  exportToPDF(@Param('type') type: string, @Query() filters: any): Promise<Buffer>;
}
```

---

## 4. VISTAS MATERIALIZADAS

### 4.1 Para Performance

```sql
-- Vista materializada de ventas diarias
CREATE MATERIALIZED VIEW retail.mv_daily_sales AS
SELECT
  DATE(po.order_date) as sale_date,
  po.tenant_id,
  ps.branch_id,
  ps.user_id as cashier_id,
  COUNT(*) as transaction_count,
  SUM(po.total) as total_sales,
  SUM(po.discount_amount) as total_discounts,
  AVG(po.total) as avg_ticket,
  SUM(CASE WHEN po.status = 'refunded' THEN po.total ELSE 0 END) as refunds
FROM retail.pos_orders po
JOIN retail.pos_sessions ps ON po.session_id = ps.id
WHERE po.status IN ('done', 'refunded')
GROUP BY DATE(po.order_date), po.tenant_id, ps.branch_id, ps.user_id;

CREATE UNIQUE INDEX idx_mv_daily_sales ON retail.mv_daily_sales(sale_date, tenant_id, branch_id, cashier_id);

-- Vista materializada de productos mas vendidos
CREATE MATERIALIZED VIEW retail.mv_product_sales AS
SELECT
  pol.product_id,
  pol.tenant_id,
  ps.branch_id,
  DATE_TRUNC('month', po.order_date) as sale_month,
  SUM(pol.quantity) as qty_sold,
  SUM(pol.total) as revenue,
  COUNT(DISTINCT po.id) as order_count
FROM retail.pos_order_lines pol
JOIN retail.pos_orders po ON pol.order_id = po.id
JOIN retail.pos_sessions ps ON po.session_id = ps.id
WHERE po.status = 'done'
GROUP BY pol.product_id, pol.tenant_id, ps.branch_id, DATE_TRUNC('month', po.order_date);

-- Refresh cada hora
-- REFRESH MATERIALIZED VIEW CONCURRENTLY retail.mv_daily_sales;
```

---

## 5. GRAFICOS Y VISUALIZACIONES

### 5.1 Componentes Frontend

| Componente | Tipo | Datos |
|------------|------|-------|
| SalesChart | Line | Ventas por hora/dia |
| PaymentPieChart | Pie | Por metodo de pago |
| TopProductsChart | Bar | Top 10 productos |
| BranchComparison | Bar | Ventas por sucursal |
| TrendIndicator | KPI | Variacion % |
| AlertsBadge | Badge | Alertas pendientes |

### 5.2 Configuracion

```typescript
interface ChartConfig {
  refreshInterval: number;  // segundos
  defaultPeriod: 'today' | 'week' | 'month';
  colors: {
    primary: string;
    success: string;
    warning: string;
    danger: string;
  };
}

const defaultConfig: ChartConfig = {
  refreshInterval: 300,  // 5 minutos
  defaultPeriod: 'today',
  colors: {
    primary: '#3B82F6',
    success: '#10B981',
    warning: '#F59E0B',
    danger: '#EF4444'
  }
};
```

---

## 6. DEPENDENCIAS

### 6.1 Dependencias de Core

| Modulo | Estado | Requerido Para |
|--------|--------|---------------|
| MGN-009 Reports | 0% | Base de reportes |

### 6.2 Dependencias de Retail

| Modulo | Tipo |
|--------|------|
| RT-001 Fundamentos | Prerequisito |
| RT-002 POS | Datos de ventas |
| RT-003 Inventario | Datos de stock |
| RT-005 Clientes | Datos de lealtad |
| RT-007 Caja | Datos de cortes |

---

## 7. CRITERIOS DE ACEPTACION

### 7.1 Dashboard

- [ ] Cargar dashboard < 3s
- [ ] Auto-refresh cada 5 min
- [ ] Mostrar KPIs del dia
- [ ] Grafico de ventas por hora
- [ ] Top 5 productos
- [ ] Alertas visibles

### 7.2 Reportes

- [ ] Filtrar por sucursal
- [ ] Filtrar por periodo
- [ ] Comparar periodos
- [ ] Exportar a Excel
- [ ] Exportar a PDF

### 7.3 Performance

- [ ] Dashboard < 3s
- [ ] Reportes < 5s
- [ ] Vistas materializadas

---

## 8. ESTIMACION DETALLADA

| Componente | SP Backend | SP Frontend | Total |
|------------|-----------|-------------|-------|
| Dashboard Service | 3 | - | 3 |
| Sales Report Service | 3 | - | 3 |
| Product Report Service | 2 | - | 2 |
| Inventory Report Service | 2 | - | 2 |
| Customer Report Service | 2 | - | 2 |
| Cash Report Service | 2 | - | 2 |
| Export Service | 3 | - | 3 |
| Vistas Materializadas | 2 | - | 2 |
| Dashboard UI | - | 8 | 8 |
| Report Pages | - | 3 | 3 |
| **TOTAL** | **19** | **11** | **30** |

---

**Estado:** ANALISIS COMPLETO
**Bloqueado por:** RT-002, RT-003, RT-005, RT-007