fix: separa Cuentas por Cobrar (ventas a crédito) y Cuentas por Pagar (órdenes de compra)

pos/blueprints/accounting_bp.py

@@ -565,67 +565,115 @@ def balance_sheet():
 @accounting_bp.route('/aging', methods=['GET'])
 @require_auth('accounting.view')
 def aging_report():
-    """Antiguedad de saldos (accounts receivable aging).
+    """Antiguedad de saldos.
 
-    Returns individual credit sales with outstanding balance, ready to be
-    collected, viewed or cancelled.
+    Returns individual credit sales with outstanding balance when type=receivable
+    (default), or purchase orders payable to suppliers when type=payable.
     """
+    report_type = request.args.get('type', 'receivable')
     conn = get_tenant_conn(g.tenant_id)
     cur = conn.cursor()
 
-    cur.execute("""
-        SELECT s.id, s.total, s.created_at, s.status,
-               c.id, c.name, c.rfc,
-               COALESCE((SELECT SUM(amount) FROM sale_payments sp WHERE sp.sale_id = s.id), 0) as payments_total
-        FROM sales s
-        JOIN customers c ON c.id = s.customer_id
-        WHERE s.sale_type = 'credit'
-          AND s.status = 'completed'
-        ORDER BY s.created_at DESC
-    """)
-
     rows = []
-    for r in cur.fetchall():
-        sale_id = r[0]
-        total = float(r[1]) if r[1] else 0
-        created_at = r[2]
-        status = r[3]
-        customer_name = r[5]
-        payments_total = float(r[7]) if r[7] else 0
-        paid = payments_total
-        balance = round(total - paid, 2)
+    if report_type == 'payable':
+        # Accounts payable: purchase orders to suppliers that are not paid/cancelled
+        cur.execute("""
+            SELECT po.id, po.supplier_invoice, po.total, po.created_at, po.expected_date,
+                   po.status, s.id, s.name
+            FROM purchase_orders po
+            JOIN suppliers s ON s.id = po.supplier_id
+            WHERE po.status NOT IN ('paid', 'cancelled')
+            ORDER BY po.created_at DESC
+        """)
+        for r in cur.fetchall():
+            po_id = r[0]
+            invoice = r[1] or f'OC-{po_id}'
+            total = float(r[2]) if r[2] else 0
+            created_at = r[3]
+            expected_date = r[4]
+            status = r[5]
+            vendor_name = r[7]
 
-        # Only receivables with pending balance
-        if balance <= 0:
-            continue
+            paid = 0  # TODO: sum supplier payments when that table is added
+            balance = round(total - paid, 2)
+            if balance <= 0:
+                continue
 
-        # Default due date = 30 days after issuance
-        due_date = created_at + timedelta(days=30) if created_at else None
-        days_overdue = (datetime.now(created_at.tzinfo) - due_date).days if due_date else 0
+            days_overdue = (datetime.now(created_at.tzinfo) - expected_date).days if expected_date and created_at else 0
+            if days_overdue > 0:
+                po_status = 'overdue'
+                label = 'Vencida'
+            elif paid > 0:
+                po_status = 'partial'
+                label = 'Parcial'
+            else:
+                po_status = 'pending'
+                label = 'Pendiente'
 
-        if days_overdue > 0:
-            sale_status = 'overdue'
-            label = 'Vencida'
-        elif paid > 0:
-            sale_status = 'partial'
-            label = 'Parcial'
-        else:
-            sale_status = 'pending'
-            label = 'Vigente'
+            rows.append({
+                'po_id': po_id,
+                'invoice': invoice,
+                'vendor_name': vendor_name,
+                'issue_date': created_at.isoformat() if created_at else None,
+                'due_date': expected_date.isoformat() if expected_date else None,
+                'total': total,
+                'paid': paid,
+                'balance': balance,
+                'days_overdue': days_overdue,
+                'status': po_status,
+                'status_label': label,
+            })
+    else:
+        # Accounts receivable: credit sales to customers
+        cur.execute("""
+            SELECT s.id, s.total, s.created_at, s.status,
+                   c.id, c.name, c.rfc,
+                   COALESCE((SELECT SUM(amount) FROM sale_payments sp WHERE sp.sale_id = s.id), 0) as payments_total
+            FROM sales s
+            JOIN customers c ON c.id = s.customer_id
+            WHERE s.sale_type = 'credit'
+              AND s.status = 'completed'
+            ORDER BY s.created_at DESC
+        """)
+        for r in cur.fetchall():
+            sale_id = r[0]
+            total = float(r[1]) if r[1] else 0
+            created_at = r[2]
+            status = r[3]
+            customer_name = r[5]
+            payments_total = float(r[7]) if r[7] else 0
+            paid = payments_total
+            balance = round(total - paid, 2)
 
-        rows.append({
-            'sale_id': sale_id,
-            'invoice': f'VTA-{sale_id}',
-            'customer_name': customer_name,
-            'issue_date': created_at.isoformat() if created_at else None,
-            'due_date': due_date.isoformat() if due_date else None,
-            'total': total,
-            'paid': paid,
-            'balance': balance,
-            'days_overdue': days_overdue,
-            'status': sale_status,
-            'status_label': label,
-        })
+            if balance <= 0:
+                continue
+
+            due_date = created_at + timedelta(days=30) if created_at else None
+            days_overdue = (datetime.now(created_at.tzinfo) - due_date).days if due_date else 0
+
+            if days_overdue > 0:
+                sale_status = 'overdue'
+                label = 'Vencida'
+            elif paid > 0:
+                sale_status = 'partial'
+                label = 'Parcial'
+            else:
+                sale_status = 'pending'
+                label = 'Vigente'
+
+            rows.append({
+                'sale_id': sale_id,
+                'invoice': f'VTA-{sale_id}',
+                'customer_name': customer_name,
+                'issue_date': created_at.isoformat() if created_at else None,
+                'due_date': due_date.isoformat() if due_date else None,
+                'total': total,
+                'paid': paid,
+                'balance': balance,
+                'days_overdue': days_overdue,
+                'status': sale_status,
+                'status_label': label,
+            })
 
     totals = {
         'count': len(rows),