// Status change logic for Paid Amount field
    const togglePaidAmount = (statusId, containerId) => {
        const statusEl = document.getElementById(statusId);
        const containerEl = document.getElementById(containerId);
        if (statusEl && containerEl) {
            statusEl.addEventListener('change', function() {
                if (this.value === 'partially_paid') {
                    containerEl.style.display = 'block';
                } else {
                    containerEl.style.display = 'none';
                }
            });
        }
    };
    togglePaidAmount('add_status', 'addPaidAmountContainer');
    togglePaidAmount('edit_status', 'editPaidAmountContainer');

    // Pay Invoice Logic
    document.querySelectorAll('.pay-invoice-btn').forEach(btn => {
        btn.addEventListener('click', function() {
            const id = this.getAttribute('data-id');
            const total = parseFloat(this.getAttribute('data-total'));
            const paid = parseFloat(this.getAttribute('data-paid') || 0);
            const remaining = total - paid;

            document.getElementById('pay_invoice_id').value = id;
            document.getElementById('pay_invoice_total').value = total.toFixed(3);
            document.getElementById('pay_remaining_amount').value = remaining.toFixed(3);
            document.getElementById('pay_amount').value = remaining.toFixed(3);
            document.getElementById('pay_amount').max = remaining.toFixed(3);
        });
    });

    // Show receipt modal if needed
    <?php if (isset($_SESSION['trigger_receipt_modal'])): 
        $rid = (int)$_SESSION['show_receipt_id'];
        unset($_SESSION['trigger_receipt_modal']);
    ?>
    if (typeof showReceipt === 'function') {
        showReceipt(<?= $rid ?>);
    } else {
        setTimeout(() => { if (typeof showReceipt === 'function') showReceipt(<?= $rid ?>); }, 500);
    }
    <?php endif; ?>

    function showReceipt(paymentId) {
        fetch(`index.php?action=get_payment_details&payment_id=${paymentId}`)
            .then(res => res.json())
            .then(data => {
                if (!data) return;
                document.getElementById('receiptNo').textContent = 'RCP-' + data.id.toString().padStart(5, '0');
                document.getElementById('receiptDate').textContent = data.payment_date;
                document.getElementById('receiptCustomer').textContent = data.customer_name || '---';
                document.getElementById('receiptInvNo').textContent = (data.inv_type === 'purchase' ? 'PUR-' : 'INV-') + data.inv_id.toString().padStart(5, '0');
                document.getElementById('receiptMethod').textContent = data.payment_method;
                document.getElementById('receiptAmount').textContent = parseFloat(data.amount).toFixed(3);
                document.getElementById('receiptAmountWords').textContent = data.amount_words;
                
                const outletEl = document.getElementById('receiptOutletName');
                if (outletEl) {
                    outletEl.textContent = data.outlet_name ? (data.outlet_name) : '';
                    outletEl.style.display = data.outlet_name ? 'block' : 'none';
                }

                // Update labels for Purchase vs Sale
                const partyLabel = document.getElementById('receiptPartyLabel');
                const againstLabel = document.getElementById('receiptAgainstLabel');
                const receiptTitle = document.querySelector('#receiptModal .modal-title');
                const receiptH4 = document.querySelector('.receipt-container h4.letter-spacing-2');

                if (data.inv_type === 'purchase') {
                    partyLabel.textContent = 'Paid To';
                    partyLabel.setAttribute('data-en', 'Paid To');
                    partyLabel.setAttribute('data-ar', 'صرف إلى');
                    
                    againstLabel.textContent = 'Against Purchase';
                    againstLabel.setAttribute('data-en', 'Against Purchase');
                    againstLabel.setAttribute('data-ar', 'مقابل شراء');

                    receiptTitle.textContent = 'Payment Voucher';
                    receiptTitle.setAttribute('data-en', 'Payment Voucher');
                    receiptTitle.setAttribute('data-ar', 'سند صرف');

                    receiptH4.textContent = 'PAYMENT VOUCHER';
                    receiptH4.setAttribute('data-en', 'PAYMENT VOUCHER');
                    receiptH4.setAttribute('data-ar', 'سند صرف');
                } else {
                    partyLabel.textContent = 'Received From';
                    partyLabel.setAttribute('data-en', 'Received From');
                    partyLabel.setAttribute('data-ar', 'وصلنا من');

                    againstLabel.textContent = 'Against Invoice';
                    againstLabel.setAttribute('data-en', 'Against Invoice');
                    againstLabel.setAttribute('data-ar', 'مقابل فاتورة');

                    receiptTitle.textContent = 'Payment Receipt';
                    receiptTitle.setAttribute('data-en', 'Payment Receipt');
                    receiptTitle.setAttribute('data-ar', 'سند قبض');

                    receiptH4.textContent = 'PAYMENT RECEIPT';
                    receiptH4.setAttribute('data-en', 'PAYMENT RECEIPT');
                    receiptH4.setAttribute('data-ar', 'سند قبض');
                }
                
                const notesContainer = document.getElementById('receiptNotesContainer');
                if (data.notes) {
                    document.getElementById('receiptNotes').textContent = data.notes;
                    notesContainer.style.display = 'block';
                } else {
                    notesContainer.style.display = 'none';
                }
                
                const receiptModal = new bootstrap.Modal(document.getElementById('receiptModal'));
                receiptModal.show();
            });
    };

    document.querySelectorAll('.view-payments-btn').forEach(btn => {
        btn.addEventListener('click', function() {
            const invoiceId = this.getAttribute('data-id');
            const tbody = document.getElementById('paymentsTableBody');
            tbody.innerHTML = '<tr><td colspan="5" class="text-center" data-en="Loading..." data-ar="جاري التحميل...">Loading...</td></tr>';
            
            fetch(`index.php?action=get_payments&invoice_id=${invoiceId}`)
                .then(res => res.json())
                .then(data => {
                    tbody.innerHTML = '';
                    if (data.length === 0) {
                        tbody.innerHTML = '<tr><td colspan="5" class="text-center" data-en="No payments found." data-ar="لا توجد مدفوعات.">No payments found.</td></tr>';
                        return;
                    }
                    data.forEach(p => {
                        const tr = document.createElement('tr');
                        tr.innerHTML = `
                            <td>RCP-${p.id.toString().padStart(5, '0')}</td>
                            <td>${p.payment_date}</td>
                            <td>${p.payment_method}</td>
                            <td class="text-end fw-bold">OMR ${parseFloat(p.amount).toFixed(3)}</td>
                            <td class="text-end">
                                <button class="btn btn-sm btn-outline-primary" onclick="showReceipt(${p.id})">
                                    <i class="bi bi-printer"></i>
                                </button>
                            </td>
                        `;
                        tbody.appendChild(tr);
                    });
                });
        });
    });

    window.printReceipt = function() {
        const content = document.getElementById('printableReceipt').innerHTML;
        const originalContent = document.body.innerHTML;
        document.body.innerHTML = content;
        window.print();
        document.body.innerHTML = originalContent;
        window.location.reload();
    };