feat(POS-012): completed feature

project/src/modules/pos/api/pos.routes.ts

@@ -804,4 +804,73 @@ export async function registerPosRoutes(app: FastifyInstance, deps: PosRouteDeps
     return reply.send({ items: result.rows });
   });
 
+
+
+  // ── POS-012: Refund + receipt print + analytics ────────────────────────────
+
+  app.post<{ Params: { id: string } }>('/pos/sales/:id/refund', {
+    schema: {
+      tags: ['POS Terminal'],
+      summary: 'Refund a POS sale',
+      params: { type: 'object', properties: { id: { type: 'string', format: 'uuid' } } },
+      body: {
+        type: 'object',
+        required: ['refundAmountCents', 'reason'],
+        properties: { refundAmountCents: { type: 'integer', minimum: 1 }, reason: { type: 'string', minLength: 1 } },
+      },
+      response: { 400: errorSchema, 401: errorSchema, 403: errorSchema, 404: errorSchema },
+    } as FastifySchema,
+  }, async (request, reply) => {
+    const user = await authenticate(request);
+    requireAnyRole(user, ['admin', 'pos_manager', 'pos_cashier'] as ReadonlyArray<Role>);
+    const { id } = request.params;
+    const body = (request.body ?? {}) as { refundAmountCents?: number; reason?: string };
+    const order = await pool.query<{ id: string; total_cents: number }>('SELECT id, total_cents FROM orders_orders WHERE id = $1', [id]);
+    if (!order.rows[0]) throw new AppError(404, 'NOT_FOUND', 'Order not found');
+    if ((body.refundAmountCents ?? 0) > (order.rows[0].total_cents ?? 0)) throw new AppError(400, 'REFUND_EXCEEDS', 'Refund exceeds amount');
+    await pool.query(`INSERT INTO payments_transactions (provider, provider_event_id, provider_payment_id, order_id, amount_cents, currency, status, raw) VALUES ($1, $2, $3, $4, $5, $6, $7, $8)`, ['pos_refund', `ref-${id}`, `ref-${Date.now()}`, id, body.refundAmountCents, 'EUR', 'COMPLETED', JSON.stringify({ reason: body.reason, by: user.id })]);
+    await pool.query(`INSERT INTO orders_order_events (order_id, event, actor_id, metadata) VALUES ($1, 'REFUNDED', $2, $3)`, [id, user.id, JSON.stringify({ amt: body.refundAmountCents, reason: body.reason })]);
+    return reply.send({ ok: true, refundedCents: body.refundAmountCents });
+  });
+
+  app.get<{ Params: { id: string } }>('/pos/sales/:id/print', {
+    schema: {
+      tags: ['POS Terminal'],
+      summary: 'Get printable receipt',
+      params: { type: 'object', properties: { id: { type: 'string', format: 'uuid' } } },
+      response: { 401: errorSchema, 404: errorSchema },
+    } as FastifySchema,
+  }, async (request, reply) => {
+    const user = await authenticate(request);
+    requireAnyRole(user, ['admin', 'pos_manager', 'pos_cashier'] as ReadonlyArray<Role>);
+    const { id } = request.params;
+    const order = await pool.query('SELECT * FROM orders_orders WHERE id = $1', [id]);
+    if (!order.rows[0]) throw new AppError(404, 'NOT_FOUND', 'Sale not found');
+    const items = await pool.query('SELECT name, quantity, unit_price_cents, discount_cents, tax_cents FROM orders_items WHERE order_id = $1', [id]);
+    const payments = await pool.query<{ amount_cents: number; provider: string }>('SELECT amount_cents, provider FROM payments_transactions WHERE order_id = $1', [id]);
+    return reply.send({ receipt: { orderId: id, storeName: 'Mercado de Vida', terminalName: 'TPV', totalCents: order.rows[0].total_cents, createdAt: order.rows[0].created_at, items: items.rows.map(i => ({ name: i.name, qty: i.quantity, unitPrice: i.unit_price_cents, discount: i.discount_cents, tax: i.tax_cents, line: (i.unit_price_cents - i.discount_cents + i.tax_cents) * i.quantity })), payments: payments.rows.map(p => ({ amountCents: p.amount_cents, kind: p.provider })) } });
+  });
+
+  app.get('/pos/analytics/summary', {
+    schema: {
+      tags: ['POS Admin'],
+      summary: 'POS sales analytics',
+      querystring: { type: 'object', properties: { storeId: { type: 'string', format: 'uuid' }, from: { type: 'string' }, to: { type: 'string' } } },
+      response: { 401: errorSchema, 403: errorSchema },
+    } as FastifySchema,
+  }, async (request, reply) => {
+    const user = await authenticate(request);
+    requireRole(user, 'admin');
+    const { storeId, from, to } = request.query as { storeId?: string; from?: string; to?: string };
+    const params: unknown[] = [];
+    let df = '';
+    if (from) { params.push(from); df += ` AND o.created_at >= $${params.length}`; }
+    if (to) { params.push(to); df += ` AND o.created_at <= $${params.length}`; }
+    let sf = '';
+    if (storeId) { params.push(storeId); sf = ` AND cs.store_id = $${params.length}`; }
+    const sum = await pool.query(`SELECT COUNT(*) AS cnt, COALESCE(SUM(o.total_cents),0) AS total, COALESCE(SUM(o.discount_cents),0) AS disc FROM orders_orders o LEFT JOIN pos_cash_sessions cs ON cs.id = o.cash_session_id WHERE o.idempotency_key IS NOT NULL${df}${sf}`, params);
+    const byPay = await pool.query(`SELECT provider, COUNT(*) AS cnt, SUM(amount_cents) AS total FROM payments_transactions WHERE status='COMPLETED'${df} GROUP BY provider`, params);
+    return reply.send({ summary: sum.rows[0], byPayment: byPay.rows });
+  });
+
 }