added previous monthes to vat allocation

taxes_az/taxes_az/doctype/vat_allocation/vat_allocation.js

@@ -14,6 +14,10 @@ frappe.ui.form.on('VAT allocation', {
         
         // Setup filter for Journal Entry
         setup_journal_entry_query(frm);
+
+        // Setup filter for Payment Entry
+        setup_payment_entry_query(frm);
+
     }
 });
 
@@ -161,11 +165,11 @@ function show_sales_invoice_filters(frm) {
     }, 100);
 }
 
-// Function to fill Payment Entries with filters
+// Function to fill Payment Entries with filters - UPDATED to include previous months
 function fill_payment_entries(frm, filters) {
-    // Call server method
+    // Call server method to get both current and previous payment entries
     frappe.call({
-        method: 'taxes_az.taxes_az.doctype.vat_allocation.vat_allocation.get_payment_entries',
+        method: 'taxes_az.taxes_az.doctype.vat_allocation.vat_allocation.get_payment_entries_with_previous',
         args: {
             year: frm.doc.year,
             month: frm.doc.month,
@@ -184,8 +188,14 @@ function fill_payment_entries(frm, filters) {
                     row.customer = payment.customer;
                     row.payment_entry = payment.payment_entry;
                     row.payment_entry_amount = payment.payment_entry_amount;
-                    row.vat_free_amount = payment.payment_entry_amount; // Default: all amount is VAT free
+                    row.vat_journal_entry = payment.vat_journal_entry || '';
-                    row.unallocated_amount = payment.payment_entry_amount;
+                    row.vat_amount = payment.vat_amount || 0;
+                    row.vat_allocated_amount = payment.vat_allocated_amount || 0;
+                    row.vat_free_amount = payment.vat_free_amount || payment.payment_entry_amount;
+                    row.unallocated_amount = payment.unallocated_amount || 0;
+                    row.allocated_amount = payment.allocated_amount || 0;
+                    row.vat_allocated_allocated = payment.vat_allocated_allocated || 0;
+                    row.vat_free_allocated = payment.vat_free_allocated || 0;
                 });
                 
                 frm.refresh_field('payment_entry_table');
@@ -197,9 +207,22 @@ function fill_payment_entries(frm, filters) {
     });
 }
 
-// Function to fill Sales Invoice Items with filters
+// Setup query filter for Payment Entry - UPDATED
+function setup_payment_entry_query(frm) {
+    frm.fields_dict.payment_entry_table.grid.get_field('payment_entry').get_query = function(doc, cdt, cdn) {
+        return {
+            query: 'taxes_az.taxes_az.doctype.vat_allocation.vat_allocation.get_payment_entry_query',
+            filters: {
+                year: doc.year,
+                month: doc.month
+            }
+        };
+    };
+}
+
+// Function to fill Sales Invoice Items with filters - UPDATED to fill both tables
 function fill_sales_invoice_items(frm, filters) {
-    // Call server method
+    // Call both server methods - current month and previous months
     frappe.call({
         method: 'taxes_az.taxes_az.doctype.vat_allocation.vat_allocation.get_sales_invoice_items',
         args: {
@@ -229,6 +252,52 @@ function fill_sales_invoice_items(frm, filters) {
             } else {
                 frappe.msgprint(__('No Sales Invoice Items found for selected period'));
             }
+            
+            // Now load previous months items
+            load_previous_months_items(frm, filters);
+        }
+    });
+}
+
+// Function to load previous months items
+function load_previous_months_items(frm, filters) {
+    frappe.call({
+        method: 'taxes_az.taxes_az.doctype.vat_allocation.vat_allocation.get_sales_invoice_items_previous_months',
+        args: {
+            year: frm.doc.year,
+            month: frm.doc.month,
+            customers: filters.customers ? JSON.stringify(filters.customers) : null,
+            min_amount: filters.min_amount || null,
+            max_amount: filters.max_amount || null
+        },
+        callback: function(r) {
+            // Clear existing table
+            frm.clear_table('sales_invoice_previous_table');
+            
+            if (r.message && r.message.length > 0) {
+                // Add new rows
+                r.message.forEach(function(item) {
+                    let row = frm.add_child('sales_invoice_previous_table');
+                    row.customer = item.customer;
+                    row.item_tax_template = item.item_tax_template;
+                    row.tax_article = item.tax_article;
+                    row.amount = item.amount;
+                    row.unallocated_amount = item.unallocated_amount;
+                    row.allocated_amount = item.allocated_amount;
+                });
+                
+                frm.refresh_field('sales_invoice_previous_table');
+                frappe.show_alert({
+                    message: __('Previous months items loaded: {0} records', [r.message.length]),
+                    indicator: 'blue'
+                });
+            } else {
+                frm.refresh_field('sales_invoice_previous_table');
+                frappe.show_alert({
+                    message: __('No unpaid items from previous months'),
+                    indicator: 'blue'
+                });
+            }
         }
     });
 }
@@ -279,6 +348,7 @@ frappe.ui.form.on('VAT allocation payment entry', {
         recalculate_totals_manually(frm);
         frm.refresh_field('payment_entry_table');
         frm.refresh_field('sales_invoice_table');
+        frm.refresh_field('sales_invoice_previous_table');
     },
     
     // При изменении Payment Entry - обновить суммы
@@ -305,6 +375,7 @@ frappe.ui.form.on('VAT allocation payment entry', {
             recalculate_totals_manually(frm);
             frm.refresh_field('payment_entry_table');
             frm.refresh_field('sales_invoice_table');
+            frm.refresh_field('sales_invoice_previous_table');
             
             return;
         }
@@ -365,6 +436,7 @@ frappe.ui.form.on('VAT allocation payment entry', {
                     recalculate_totals_manually(frm);
                     frm.refresh_field('payment_entry_table');
                     frm.refresh_field('sales_invoice_table');
+                    frm.refresh_field('sales_invoice_previous_table');
                 }
             }
         });
@@ -389,6 +461,7 @@ frappe.ui.form.on('VAT allocation payment entry', {
         recalculate_totals_manually(frm);
         frm.refresh_field('payment_entry_table');
         frm.refresh_field('sales_invoice_table');
+        frm.refresh_field('sales_invoice_previous_table');
     },
     
     vat_journal_entry: function(frm, cdt, cdn) {
@@ -501,7 +574,10 @@ function show_allocation_dialog(frm, payment_row_idx, customer) {
     // Получаем sales invoice items для этого клиента из формы
     let vat_free_items = [];
     let vat_items = [];
+    let vat_free_items_previous = [];
+    let vat_items_previous = [];
     
+    // Current month items
     for (let item of frm.doc.sales_invoice_table || []) {
         if (item.customer !== customer) {
             continue;
@@ -529,7 +605,6 @@ function show_allocation_dialog(frm, payment_row_idx, customer) {
         
         let template = (item.item_tax_template || '').toLowerCase();
         
-        // ИСПРАВЛЕНО: используем .includes() вместо 'in'
         if (template.includes('ədv 0%') || template.includes('ədv-dən azadolma')) {
             vat_free_items.push(item_data);
         } else if (template.includes('ədv 18%') || template.includes('ədv daxil 18%')) {
@@ -537,8 +612,44 @@ function show_allocation_dialog(frm, payment_row_idx, customer) {
         }
     }
     
+    // Previous months items
+    for (let item of frm.doc.sales_invoice_previous_table || []) {
+        if (item.customer !== customer) {
+            continue;
+        }
+        
+        // Получаем существующие аллокации для этого item от текущего payment row
+        let current_allocation = 0;
+        for (let link of frm.doc.allocation_links || []) {
+            if (link.payment_entry_row === payment_row.name && 
+                link.sales_invoice_row === item.name) {
+                current_allocation = link.allocated_amount || 0;
+                break;
+            }
+        }
+        
+        let item_data = {
+            name: item.name,
+            item_tax_template: item.item_tax_template || '',
+            tax_article: item.tax_article || '',
+            amount: item.amount || 0,
+            unallocated_amount: item.unallocated_amount || 0,
+            allocated_amount: item.allocated_amount || 0,
+            current_allocation: current_allocation
+        };
+        
+        let template = (item.item_tax_template || '').toLowerCase();
+        
+        if (template.includes('ədv 0%') || template.includes('ədv-dən azadolma')) {
+            vat_free_items_previous.push(item_data);
+        } else if (template.includes('ədv 18%') || template.includes('ədv daxil 18%')) {
+            vat_items_previous.push(item_data);
+        }
+    }
+    
     // Check if there are items to allocate to
-    if (vat_free_items.length === 0 && vat_items.length === 0) {
+    if (vat_free_items.length === 0 && vat_items.length === 0 && 
+        vat_free_items_previous.length === 0 && vat_items_previous.length === 0) {
         frappe.msgprint(__('No sales invoice items available for this customer'));
         return;
     }
@@ -554,19 +665,22 @@ function show_allocation_dialog(frm, payment_row_idx, customer) {
         vat_free_available: vat_free_amount - vat_free_allocated,
         vat_allocated_available: vat_allocated_amount - vat_allocated_allocated,
         vat_free_items: vat_free_items,
-        vat_items: vat_items
+        vat_items: vat_items,
+        vat_free_items_previous: vat_free_items_previous,
+        vat_items_previous: vat_items_previous
     };
     
     // Create allocation dialog
-    create_allocation_dialog(frm, payment_row_idx, data, vat_free_items, vat_items);
+    create_allocation_dialog(frm, payment_row_idx, data);
 }
 
-function create_allocation_dialog(frm, payment_row_idx, data, vat_free_items, vat_items) {
+function create_allocation_dialog(frm, payment_row_idx, data) {
-    let allocation_data = {};
+    let allocation_data_current = {};
+    let allocation_data_previous = {};
     
     let dialog = new frappe.ui.Dialog({
         title: __('Allocate Amount'),
-        size: 'large',
+        size: 'extra-large',
         fields: [
             {
                 fieldname: 'info_section',
@@ -601,22 +715,39 @@ function create_allocation_dialog(frm, payment_row_idx, data, vat_free_items, va
                 default: data.vat_allocated_available
             },
             {
-                fieldname: 'items_section',
+                fieldname: 'tabs_section',
-                fieldtype: 'Section Break',
+                fieldtype: 'Section Break'
-                label: __('Sales Invoice Items - Edit Allocations')
             },
             {
-                fieldname: 'allocation_html',
+                fieldname: 'tabs_html',
                 fieldtype: 'HTML'
             }
         ],
         primary_action_label: __('Save Allocation'),
         primary_action: function() {
-            save_allocation_data(frm, payment_row_idx, allocation_data, dialog);
+            save_allocation_data(frm, payment_row_idx, allocation_data_current, allocation_data_previous, dialog);
         },
         secondary_action_label: __('Auto Allocate'),
         secondary_action: function() {
-            auto_allocate(frm, payment_row_idx, data, vat_free_items, vat_items, allocation_data, dialog);
+            // Determine which tab is active
+            let active_tab = dialog.$wrapper.find('.nav-tabs .nav-link.active').data('tab');
+            
+            // Calculate remaining available amounts
+            let available_amounts = calculate_available_amounts(
+                data, 
+                allocation_data_current, 
+                allocation_data_previous
+            );
+            
+            if (active_tab === 'current') {
+                auto_allocate(frm, payment_row_idx, data, data.vat_free_items, data.vat_items, 
+                    allocation_data_current, dialog, 'current', available_amounts, 
+                    allocation_data_previous);
+            } else {
+                auto_allocate(frm, payment_row_idx, data, data.vat_free_items_previous, data.vat_items_previous, 
+                    allocation_data_previous, dialog, 'previous', available_amounts,
+                    allocation_data_current);
+            }
         }
     });
     
@@ -637,17 +768,121 @@ function create_allocation_dialog(frm, payment_row_idx, data, vat_free_items, va
     `;
     dialog.fields_dict.payment_info_html.$wrapper.html(info_html);
     
-    // Build allocation HTML
+    // Build tabs HTML with Bootstrap
-    let html = build_allocation_html(vat_free_items, vat_items, allocation_data);
+    let html_current = build_allocation_html(data.vat_free_items, data.vat_items, allocation_data_current, 'current');
-    dialog.fields_dict.allocation_html.$wrapper.html(html);
+    let html_previous = build_allocation_html(data.vat_free_items_previous, data.vat_items_previous, allocation_data_previous, 'previous');
     
-    // Setup input handlers
+    let tabs_html = `
-    setup_allocation_inputs(dialog, allocation_data, data.vat_free_available, data.vat_allocated_available);
+        <style>
+            .allocation-tabs .nav-link {
+                color: #6c757d;
+                font-weight: 400;
+                border: none;
+                border-bottom: 3px solid transparent;
+                padding: 10px 20px;
+                cursor: pointer;
+                transition: all 0.2s ease;
+            }
+            .allocation-tabs .nav-link:hover {
+                color: #495057;
+                background-color: #f8f9fa;
+                border-bottom-color: #dee2e6;
+            }
+            .allocation-tabs .nav-link.active {
+                color: #1f272e;
+                font-weight: 600;
+                border-bottom-color: #2490ef;
+                background-color: transparent;
+            }
+            .allocation-tabs .nav-tabs {
+                border-bottom: 1px solid #dee2e6;
+            }
+        </style>
+        <ul class="nav nav-tabs allocation-tabs" role="tablist" style="margin-bottom: 15px;">
+            <li class="nav-item">
+                <a class="nav-link active" id="tab-link-current" data-tab="current" href="#tab-current" role="tab">
+                    ${__('Current Month')}
+                </a>
+            </li>
+            <li class="nav-item">
+                <a class="nav-link" id="tab-link-previous" data-tab="previous" href="#tab-previous" role="tab">
+                    ${__('Previous Months')}
+                </a>
+            </li>
+        </ul>
+        <div class="tab-content">
+            <div class="tab-pane fade show active" id="tab-current" role="tabpanel">
+                ${html_current}
+            </div>
+            <div class="tab-pane fade" id="tab-previous" role="tabpanel">
+                ${html_previous}
+            </div>
+        </div>
+    `;
+    
+    dialog.fields_dict.tabs_html.$wrapper.html(tabs_html);
+    
+    // Setup custom tab switching (without Bootstrap's data-toggle)
+    dialog.$wrapper.find('.nav-link').on('click', function(e) {
+        e.preventDefault();
+        e.stopPropagation();
+        
+        let $this = $(this);
+        let target = $this.attr('href');
+        
+        // Update nav links
+        dialog.$wrapper.find('.nav-link').removeClass('active');
+        $this.addClass('active');
+        
+        // Update tab panes
+        dialog.$wrapper.find('.tab-pane').removeClass('show active');
+        dialog.$wrapper.find(target).addClass('show active');
+    });
+    
+    // Setup input handlers for both tabs
+    setup_allocation_inputs(dialog, allocation_data_current, data.vat_free_available, data.vat_allocated_available, 'current');
+    setup_allocation_inputs(dialog, allocation_data_previous, data.vat_free_available, data.vat_allocated_available, 'previous');
     
     dialog.show();
 }
 
-function build_allocation_html(vat_free_items, vat_items, allocation_data) {
+function calculate_available_amounts(data, allocation_data_current, allocation_data_previous) {
+    let total_vat_free_current = 0;
+    let total_vat_allocated_current = 0;
+    let total_vat_free_previous = 0;
+    let total_vat_allocated_previous = 0;
+    
+    // Calculate totals from current month
+    for (let name in allocation_data_current) {
+        let alloc = allocation_data_current[name];
+        if (alloc.type === 'vat_free') {
+            total_vat_free_current += alloc.value || 0;
+        } else {
+            total_vat_allocated_current += alloc.value || 0;
+        }
+    }
+    
+    // Calculate totals from previous months
+    for (let name in allocation_data_previous) {
+        let alloc = allocation_data_previous[name];
+        if (alloc.type === 'vat_free') {
+            total_vat_free_previous += alloc.value || 0;
+        } else {
+            total_vat_allocated_previous += alloc.value || 0;
+        }
+    }
+    
+    // Calculate remaining available
+    let vat_free_available = data.vat_free_available - total_vat_free_current - total_vat_free_previous;
+    let vat_allocated_available = data.vat_allocated_available - total_vat_allocated_current - total_vat_allocated_previous;
+    
+    return {
+        vat_free_available: Math.max(0, vat_free_available),
+        vat_allocated_available: Math.max(0, vat_allocated_available)
+    };
+}
+
+function build_allocation_html(vat_free_items, vat_items, allocation_data, tab_type) {
     let html = '<div class="allocation-container" style="max-height: 400px; overflow-y: auto;">';
     
     // VAT Free items section
@@ -671,7 +906,7 @@ function build_allocation_html(vat_free_items, vat_items, allocation_data) {
             html += '<td>' + format_currency(item.amount) + '</td>';
             html += '<td>' + format_currency(item.unallocated_amount) + '</td>';
             html += '<td style="background-color: #fff3cd;">' + format_currency(item.current_allocation || 0) + '</td>';
-            html += '<td><input type="number" class="form-control allocation-input" data-name="' + item.name + '" data-type="vat_free" data-max="' + (item.unallocated_amount + (item.current_allocation || 0)) + '" value="' + (item.current_allocation || 0) + '" min="0" step="0.01"></td>';
+            html += '<td><input type="number" class="form-control allocation-input-' + tab_type + '" data-name="' + item.name + '" data-type="vat_free" data-max="' + (item.unallocated_amount + (item.current_allocation || 0)) + '" value="' + (item.current_allocation || 0) + '" min="0" step="0.01"></td>';
             html += '</tr>';
         });
         
@@ -699,7 +934,7 @@ function build_allocation_html(vat_free_items, vat_items, allocation_data) {
             html += '<td>' + format_currency(item.amount) + '</td>';
             html += '<td>' + format_currency(item.unallocated_amount) + '</td>';
             html += '<td style="background-color: #fff3cd;">' + format_currency(item.current_allocation || 0) + '</td>';
-            html += '<td><input type="number" class="form-control allocation-input" data-name="' + item.name + '" data-type="vat_allocated" data-max="' + (item.unallocated_amount + (item.current_allocation || 0)) + '" value="' + (item.current_allocation || 0) + '" min="0" step="0.01"></td>';
+            html += '<td><input type="number" class="form-control allocation-input-' + tab_type + '" data-name="' + item.name + '" data-type="vat_allocated" data-max="' + (item.unallocated_amount + (item.current_allocation || 0)) + '" value="' + (item.current_allocation || 0) + '" min="0" step="0.01"></td>';
             html += '</tr>';
         });
         
@@ -709,13 +944,13 @@ function build_allocation_html(vat_free_items, vat_items, allocation_data) {
     // Summary section
     let formatted_zero = $(frappe.format(0, {fieldtype: 'Currency'})).text();
 
-    html += '<div class="allocation-summary" style="margin-top: 20px; padding: 10px; background-color: #f8f9fa; border-radius: 5px;">';
+    html += '<div class="allocation-summary-' + tab_type + '" style="margin-top: 20px; padding: 10px; background-color: #f8f9fa; border-radius: 5px;">';
     html += '<div class="row">';
-    html += '<div class="col-md-6"><strong>Total VAT Free to Allocate:</strong> <span id="total_vat_free" class="text-primary">' + formatted_zero + '</span></div>';
+    html += '<div class="col-md-6"><strong>Total VAT Free to Allocate:</strong> <span id="total_vat_free_' + tab_type + '" class="text-primary">' + formatted_zero + '</span></div>';
-    html += '<div class="col-md-6"><strong>Total VAT to Allocate:</strong> <span id="total_vat_allocated" class="text-warning">' + formatted_zero + '</span></div>';
+    html += '<div class="col-md-6"><strong>Total VAT to Allocate:</strong> <span id="total_vat_allocated_' + tab_type + '" class="text-warning">' + formatted_zero + '</span></div>';
     html += '</div>';
     html += '<div class="row" style="margin-top: 10px;">';
-    html += '<div class="col-md-12"><strong>Total:</strong> <span id="total_allocated" class="text-success">' + formatted_zero + '</span></div>';
+    html += '<div class="col-md-12"><strong>Total:</strong> <span id="total_allocated_' + tab_type + '" class="text-success">' + formatted_zero + '</span></div>';
     html += '</div>';
     html += '</div>';
     
@@ -724,15 +959,16 @@ function build_allocation_html(vat_free_items, vat_items, allocation_data) {
     return html;
 }
 
-function setup_allocation_inputs(dialog, allocation_data, max_vat_free, max_vat_allocated) {
+function setup_allocation_inputs(dialog, allocation_data, max_vat_free, max_vat_allocated, tab_type) {
-    let $wrapper = dialog.fields_dict.allocation_html.$wrapper;
+    // Ищем wrapper по ID вкладки в общем wrapper диалога
+    let $wrapper = dialog.$wrapper.find('#tab-' + tab_type);
     
     // Initial calculation
     setTimeout(function() {
-        $wrapper.find('.allocation-input').first().trigger('input');
+        $wrapper.find('.allocation-input-' + tab_type).first().trigger('input');
     }, 100);
     
-    $wrapper.find('.allocation-input').on('input', function() {
+    $wrapper.find('.allocation-input-' + tab_type).on('input', function() {
         let $input = $(this);
         let name = $input.data('name');
         let type = $input.data('type');
@@ -755,11 +991,11 @@ function setup_allocation_inputs(dialog, allocation_data, max_vat_free, max_vat_
             type: type
         };
         
-        // Calculate totals
+        // Calculate totals for this tab only
         let total_vat_free = 0;
         let total_vat_allocated = 0;
         
-        $wrapper.find('.allocation-input').each(function() {
+        $wrapper.find('.allocation-input-' + tab_type).each(function() {
             let item_type = $(this).data('type');
             let item_value = parseFloat($(this).val()) || 0;
             
@@ -784,31 +1020,30 @@ function setup_allocation_inputs(dialog, allocation_data, max_vat_free, max_vat_
             total_vat_free -= value;
         }
         
-        
+        // Update summary for this tab
-        // Update summary
+        $wrapper.find('#total_vat_free_' + tab_type).text($(frappe.format(total_vat_free, {fieldtype: 'Currency'})).text());
-        $wrapper.find('#total_vat_free').text($(frappe.format(total_vat_free, {fieldtype: 'Currency'})).text());
+        $wrapper.find('#total_vat_allocated_' + tab_type).text($(frappe.format(total_vat_allocated, {fieldtype: 'Currency'})).text());
-        $wrapper.find('#total_vat_allocated').text($(frappe.format(total_vat_allocated, {fieldtype: 'Currency'})).text());
+        $wrapper.find('#total_allocated_' + tab_type).text($(frappe.format(total_vat_free + total_vat_allocated, {fieldtype: 'Currency'})).text());
-        $wrapper.find('#total_allocated').text($(frappe.format(total_vat_free + total_vat_allocated, {fieldtype: 'Currency'})).text());
     });
 }
 
-function auto_allocate(frm, payment_row_idx, data, vat_free_items, vat_items, allocation_data, dialog) {
+function auto_allocate(frm, payment_row_idx, data, vat_free_items, vat_items, allocation_data, dialog, tab_type, available_amounts, other_allocation_data) {
-    // Call server method to calculate auto allocation
+    // Use calculated available amounts
     frappe.call({
         method: 'taxes_az.taxes_az.doctype.vat_allocation.vat_allocation.calculate_auto_allocation',
         args: {
-            vat_free_available: data.vat_free_available,
+            vat_free_available: available_amounts.vat_free_available,
-            vat_allocated_available: data.vat_allocated_available,
+            vat_allocated_available: available_amounts.vat_allocated_available,
             vat_free_items: JSON.stringify(vat_free_items),
             vat_items: JSON.stringify(vat_items)
         },
         callback: function(r) {
             if (r.message) {
                 let allocations = r.message;
-                let $wrapper = dialog.fields_dict.allocation_html.$wrapper;
+                let $wrapper = dialog.$wrapper.find('#tab-' + tab_type);
                 
-                // Reset all inputs
+                // Reset all inputs for this tab
-                $wrapper.find('.allocation-input').val(0);
+                $wrapper.find('.allocation-input-' + tab_type).val(0);
                 
                 // Update allocation data
                 for (let key in allocation_data) {
@@ -818,11 +1053,20 @@ function auto_allocate(frm, payment_row_idx, data, vat_free_items, vat_items, al
                 // Apply auto allocations
                 allocations.forEach(function(alloc) {
                     allocation_data[alloc.name].value = alloc.allocated;
-                    $wrapper.find('.allocation-input[data-name="' + alloc.name + '"]').val(alloc.allocated.toFixed(2));
+                    $wrapper.find('.allocation-input-' + tab_type + '[data-name="' + alloc.name + '"]').val(alloc.allocated.toFixed(2));
                 });
                 
                 // Trigger input event to update summary
-                $wrapper.find('.allocation-input').first().trigger('input');
+                $wrapper.find('.allocation-input-' + tab_type).first().trigger('input');
+                
+                // Update available amounts in dialog fields
+                let new_available = calculate_available_amounts(data, 
+                    tab_type === 'current' ? allocation_data : other_allocation_data,
+                    tab_type === 'previous' ? allocation_data : other_allocation_data
+                );
+                
+                dialog.set_value('vat_free_available', new_available.vat_free_available);
+                dialog.set_value('vat_allocated_available', new_available.vat_allocated_available);
                 
                 frappe.show_alert({
                     message: __('Auto allocation completed'),
@@ -834,12 +1078,23 @@ function auto_allocate(frm, payment_row_idx, data, vat_free_items, vat_items, al
 }
 
 // Сохранение allocation - работает с несохраненным документом
-function save_allocation_data(frm, payment_row_idx, allocation_data, dialog) {
+function save_allocation_data(frm, payment_row_idx, allocation_data_current, allocation_data_previous, dialog) {
-    // Prepare allocations array
+    // Prepare allocations array - combine both tabs
     let allocations = [];
     
-    for (let name in allocation_data) {
+    // Add allocations from current month tab
-        let data = allocation_data[name];
+    for (let name in allocation_data_current) {
+        let data = allocation_data_current[name];
+        allocations.push({
+            name: name,
+            allocated: data.value,
+            type: data.type
+        });
+    }
+    
+    // Add allocations from previous months tab
+    for (let name in allocation_data_previous) {
+        let data = allocation_data_previous[name];
         allocations.push({
             name: name,
             allocated: data.value,
@@ -892,6 +1147,7 @@ function save_allocation_data(frm, payment_row_idx, allocation_data, dialog) {
     frm.refresh_field('allocation_links');
     frm.refresh_field('payment_entry_table');
     frm.refresh_field('sales_invoice_table');
+    frm.refresh_field('sales_invoice_previous_table');
     
     // Помечаем документ как измененный
     frm.dirty();
@@ -899,7 +1155,7 @@ function save_allocation_data(frm, payment_row_idx, allocation_data, dialog) {
     dialog.hide();
 }
 
-// Функция для пересчета totals без сохранения в БД
+// Функция для пересчета totals без сохранения в БД - UPDATED
 function recalculate_totals_manually(frm) {
     // Reset all allocated amounts
     for (let pe_row of frm.doc.payment_entry_table || []) {
@@ -912,6 +1168,10 @@ function recalculate_totals_manually(frm) {
         si_row.allocated_amount = 0;
     }
     
+    for (let si_row of frm.doc.sales_invoice_previous_table || []) {
+        si_row.allocated_amount = 0;
+    }
+    
     // Calculate from links
     for (let link of frm.doc.allocation_links || []) {
         let allocated = link.allocated_amount || 0;
@@ -931,13 +1191,24 @@ function recalculate_totals_manually(frm) {
             }
         }
         
-        // Update sales invoice row
+        // Update sales invoice row - check both tables
+        let found = false;
         for (let si_row of frm.doc.sales_invoice_table || []) {
             if (si_row.name === link.sales_invoice_row) {
                 si_row.allocated_amount = (si_row.allocated_amount || 0) + allocated;
+                found = true;
                 break;
             }
         }
+        
+        if (!found) {
+            for (let si_row of frm.doc.sales_invoice_previous_table || []) {
+                if (si_row.name === link.sales_invoice_row) {
+                    si_row.allocated_amount = (si_row.allocated_amount || 0) + allocated;
+                    break;
+                }
+            }
+        }
     }
     
     // Calculate unallocated amounts
@@ -953,6 +1224,12 @@ function recalculate_totals_manually(frm) {
         si_row.unallocated_amount = Math.max(0, total - allocated);
     }
     
+    for (let si_row of frm.doc.sales_invoice_previous_table || []) {
+        let total = si_row.amount || 0;
+        let allocated = si_row.allocated_amount || 0;
+        si_row.unallocated_amount = Math.max(0, total - allocated);
+    }
+    
     // Calculate tax template totals
     calculate_tax_template_totals(frm);
 }
@@ -966,7 +1243,7 @@ function calculate_tax_template_totals(frm) {
     frm.doc.total_edv_18 = 0;
     frm.doc.total_allocated_sum = 0;
     
-    // Calculate totals from sales invoice table
+    // Calculate totals from sales invoice table (only current month)
     for (let si_row of frm.doc.sales_invoice_table || []) {
         let allocated = si_row.allocated_amount || 0;
         if (allocated <= 0) continue;

taxes_az/taxes_az/doctype/vat_allocation/vat_allocation.json

@@ -13,6 +13,8 @@
   "payment_entry_table",
   "sales_invoice_section",
   "sales_invoice_table",
+  "section_break_fhfs",
+  "sales_invoice_previous_table",
   "allocation_links_section",
   "allocation_links",
   "total_edv_18",
@@ -146,12 +148,22 @@
    "print_hide": 1,
    "read_only": 1,
    "search_index": 1
+  },
+  {
+   "fieldname": "section_break_fhfs",
+   "fieldtype": "Section Break"
+  },
+  {
+   "fieldname": "sales_invoice_previous_table",
+   "fieldtype": "Table",
+   "label": "Sales Invoice Previous Months",
+   "options": "VAT allocation sales invoice"
   }
  ],
  "index_web_pages_for_search": 1,
  "is_submittable": 1,
  "links": [],
- "modified": "2025-10-06 16:52:07.347647",
+ "modified": "2025-10-07 14:10:17.385408",
  "modified_by": "Administrator",
  "module": "Taxes Az",
  "name": "VAT allocation",

taxes_az/taxes_az/doctype/vat_allocation/vat_allocation.py

@@ -46,6 +46,9 @@ class VATallocation(Document):
         for si_row in self.sales_invoice_table:
             si_row.allocated_amount = 0
         
+        for si_row in self.sales_invoice_previous_table:
+            si_row.allocated_amount = 0
+        
         # Calculate from links
         for link in self.allocation_links:
             allocated = Decimal(str(link.allocated_amount or 0))
@@ -66,8 +69,17 @@ class VATallocation(Document):
                         pe_row.vat_allocated_allocated = float(current_vat_allocated + allocated)
                     break
             
-            # Update sales invoice row
+            # Update sales invoice row - check both tables
+            found = False
             for si_row in self.sales_invoice_table:
+                if si_row.name == link.sales_invoice_row:
+                    current_allocated = Decimal(str(si_row.allocated_amount or 0))
+                    si_row.allocated_amount = float(current_allocated + allocated)
+                    found = True
+                    break
+            
+            if not found:
+                for si_row in self.sales_invoice_previous_table:
                     if si_row.name == link.sales_invoice_row:
                         current_allocated = Decimal(str(si_row.allocated_amount or 0))
                         si_row.allocated_amount = float(current_allocated + allocated)
@@ -84,6 +96,11 @@ class VATallocation(Document):
             allocated = Decimal(str(si_row.allocated_amount or 0))
             si_row.unallocated_amount = float(max(Decimal('0'), total - allocated))
         
+        for si_row in self.sales_invoice_previous_table:
+            total = Decimal(str(si_row.amount or 0))
+            allocated = Decimal(str(si_row.allocated_amount or 0))
+            si_row.unallocated_amount = float(max(Decimal('0'), total - allocated))
+    
     def validate_allocations(self):
         """
         Validate that all allocations are mathematically correct
@@ -106,7 +123,7 @@ class VATallocation(Document):
             if vat_allocated_spent > vat_allocated_total + ROUNDING_TOLERANCE:
                 frappe.throw(_(f"VAT Allocated spent exceeds total for payment entry {pe_row.payment_entry}"))
         
-        # Validate sales invoice items
+        # Validate sales invoice items - both tables
         for si_row in self.sales_invoice_table:
             amount = Decimal(str(si_row.amount or 0))
             allocated = Decimal(str(si_row.allocated_amount or 0))
@@ -121,6 +138,20 @@ class VATallocation(Document):
             if abs(total_check - amount) > ROUNDING_TOLERANCE:
                 frappe.throw(_(f"Allocated + Unallocated != Amount for {si_row.item_tax_template}"))
         
+        for si_row in self.sales_invoice_previous_table:
+            amount = Decimal(str(si_row.amount or 0))
+            allocated = Decimal(str(si_row.allocated_amount or 0))
+            unallocated = Decimal(str(si_row.unallocated_amount or 0))
+            
+            # Check non-negative
+            if allocated < 0 or unallocated < -ROUNDING_TOLERANCE:
+                frappe.throw(_(f"Allocated amounts cannot be negative for previous month {si_row.item_tax_template}"))
+            
+            # Check sum equals total (with tolerance)
+            total_check = allocated + unallocated
+            if abs(total_check - amount) > ROUNDING_TOLERANCE:
+                frappe.throw(_(f"Allocated + Unallocated != Amount for previous month {si_row.item_tax_template}"))
+
 @frappe.whitelist()
 def validate_all_allocations(vat_allocation_name):
     """
@@ -351,6 +382,115 @@ def get_sales_invoice_items(year, month, customers=None, min_amount=None, max_am
     
     return invoice_items
 
+@frappe.whitelist()
+def get_sales_invoice_items_previous_months(year, month, customers=None, min_amount=None, max_amount=None):
+    """
+    Get Sales Invoice items from previous VAT Allocation documents where unallocated_amount > 0
+    Grouped by customer, item_tax_template, and tax_article
+    """
+    # Convert month name to number
+    months = {
+        "January": 1, "February": 2, "March": 3, "April": 4,
+        "May": 5, "June": 6, "July": 7, "August": 8,
+        "September": 9, "October": 10, "November": 11, "December": 12
+    }
+    
+    month_number = months.get(month)
+    if not month_number:
+        frappe.throw(_("Invalid month"))
+    
+    # Parse customers filter
+    customer_list = None
+    if customers:
+        if isinstance(customers, str):
+            customers = json.loads(customers)
+        if customers and len(customers) > 0:
+            customer_list = [c.get('customer') for c in customers if c.get('customer')]
+    
+    # Find all previous VAT Allocation documents
+    # We need to find documents where (year < current_year) OR (year == current_year AND month < current_month)
+    vat_allocations = frappe.db.sql("""
+        SELECT name, year, month
+        FROM `tabVAT allocation`
+        WHERE docstatus = 1
+        AND (
+            year < %(year)s
+            OR (year = %(year)s AND month < %(month)s)
+        )
+        ORDER BY year DESC, month DESC
+    """, {
+        'year': year,
+        'month': month_number
+    }, as_dict=1)
+    
+    if not vat_allocations:
+        return []
+    
+    # Collect all items with unallocated_amount > 0 from previous VAT Allocations
+    all_items = []
+    
+    for vat_alloc in vat_allocations:
+        # Get sales invoice items from this VAT Allocation
+        items = frappe.db.sql("""
+            SELECT 
+                customer,
+                item_tax_template,
+                tax_article,
+                unallocated_amount
+            FROM `tabVAT allocation sales invoice`
+            WHERE parent = %(parent)s
+            AND unallocated_amount > 0
+        """, {
+            'parent': vat_alloc.name
+        }, as_dict=1)
+        
+        all_items.extend(items)
+    
+    # Group by customer, item_tax_template, tax_article and sum unallocated amounts
+    grouped_items = {}
+    
+    for item in all_items:
+        # Apply customer filter
+        if customer_list and item.customer not in customer_list:
+            continue
+        
+        key = (item.customer, item.item_tax_template or '', item.tax_article or '')
+        
+        if key not in grouped_items:
+            grouped_items[key] = {
+                'customer': item.customer,
+                'item_tax_template': item.item_tax_template,
+                'tax_article': item.tax_article,
+                'amount': Decimal('0')
+            }
+        
+        grouped_items[key]['amount'] += Decimal(str(item.unallocated_amount))
+    
+    # Convert to list and apply amount filters
+    result = []
+    for key, item in grouped_items.items():
+        amount = float(item['amount'])
+        
+        # Apply min/max amount filters
+        if min_amount and amount < float(min_amount):
+            continue
+        if max_amount and amount > float(max_amount):
+            continue
+        
+        result.append({
+            'customer': item['customer'],
+            'item_tax_template': item['item_tax_template'],
+            'tax_article': item['tax_article'],
+            'amount': amount,
+            'unallocated_amount': amount,  # Initially all is unallocated
+            'allocated_amount': 0
+        })
+    
+    # Sort by customer, item_tax_template, tax_article
+    result.sort(key=lambda x: (x['customer'], x['item_tax_template'] or '', x['tax_article'] or ''))
+    
+    return result
+
 @frappe.whitelist()
 def get_allocation_data(vat_allocation_name, payment_entry_row_name, customer):
     """
@@ -405,6 +545,10 @@ def get_allocation_data(vat_allocation_name, payment_entry_row_name, customer):
     # VAT templates (ƏDV 18% and ƏDV daxil 18%)
     vat_items = []
     
+    vat_free_items_previous = []
+    vat_items_previous = []
+    
+    # Current month items
     for item in doc.sales_invoice_table:
         if item.customer == customer:
             # Get existing allocation for this item
@@ -429,12 +573,39 @@ def get_allocation_data(vat_allocation_name, payment_entry_row_name, customer):
             elif 'ədv 18%' in template or 'ədv daxil 18%' in template:
                 vat_items.append(item_data)
     
+    # Previous months items
+    for item in doc.sales_invoice_previous_table:
+        if item.customer == customer:
+            # Get existing allocation for this item
+            existing_alloc = existing_allocations.get(item.name, {'amount': 0, 'type': None})
+            
+            item_data = {
+                'name': item.name,
+                'item_tax_template': item.item_tax_template or '',
+                'tax_article': item.tax_article or '',
+                'amount': item.amount,
+                'unallocated_amount': item.unallocated_amount,
+                'allocated_amount': item.allocated_amount or 0,
+                'current_allocation': existing_alloc['amount']  # Allocation from THIS payment row
+            }
+            
+            template = (item.item_tax_template or '').lower()
+            
+            # Check if it's VAT free template
+            if 'ədv 0%' in template or 'ədv-dən azadolma' in template:
+                vat_free_items_previous.append(item_data)
+            # Check if it's VAT 18% template
+            elif 'ədv 18%' in template or 'ədv daxil 18%' in template:
+                vat_items_previous.append(item_data)
+    
     return {
         'payment_row': payment_row,
         'vat_free_available': vat_free_available,
         'vat_allocated_available': vat_allocated_available,
         'vat_free_items': vat_free_items,
-        'vat_items': vat_items
+        'vat_items': vat_items,
+        'vat_free_items_previous': vat_free_items_previous,
+        'vat_items_previous': vat_items_previous
     }
 
 def round_decimal(value, precision=2):
@@ -513,8 +684,9 @@ def save_allocation(vat_allocation_name, payment_entry_row_name, allocations):
                 "Total VAT Allocated ({0}) exceeds total amount ({1})"
             ).format(total_vat_allocated_new, vat_allocated_amount))
         
-        # Validate each SI item
+        # Validate each SI item - check both tables
         si_items_map = {item.name: item for item in doc.sales_invoice_table}
+        si_items_map.update({item.name: item for item in doc.sales_invoice_previous_table})
         
         for allocation in allocations:
             si_row_name = allocation['name']
@@ -716,6 +888,9 @@ def recalculate_totals_from_links(self):
     for si_row in self.sales_invoice_table:
         si_row.allocated_amount = 0
     
+    for si_row in self.sales_invoice_previous_table:
+        si_row.allocated_amount = 0
+    
     # Calculate from links
     for link in self.allocation_links:
         allocated = Decimal(str(link.allocated_amount or 0))
@@ -736,8 +911,17 @@ def recalculate_totals_from_links(self):
                     pe_row.vat_allocated_allocated = float(current_vat_allocated + allocated)
                 break
         
-        # Update sales invoice row
+        # Update sales invoice row - check both tables
+        found = False
         for si_row in self.sales_invoice_table:
+            if si_row.name == link.sales_invoice_row:
+                current_allocated = Decimal(str(si_row.allocated_amount or 0))
+                si_row.allocated_amount = float(current_allocated + allocated)
+                found = True
+                break
+        
+        if not found:
+            for si_row in self.sales_invoice_previous_table:
                 if si_row.name == link.sales_invoice_row:
                     current_allocated = Decimal(str(si_row.allocated_amount or 0))
                     si_row.allocated_amount = float(current_allocated + allocated)
@@ -754,6 +938,11 @@ def recalculate_totals_from_links(self):
         allocated = Decimal(str(si_row.allocated_amount or 0))
         si_row.unallocated_amount = float(max(Decimal('0'), total - allocated))
     
+    for si_row in self.sales_invoice_previous_table:
+        total = Decimal(str(si_row.amount or 0))
+        allocated = Decimal(str(si_row.allocated_amount or 0))
+        si_row.unallocated_amount = float(max(Decimal('0'), total - allocated))
+    
     # Calculate totals by tax template
     self.calculate_tax_template_totals()
 
@@ -768,7 +957,7 @@ def calculate_tax_template_totals(self):
     self.total_edv_18 = 0
     self.total_allocated_sum = 0
     
-    # Calculate totals
+    # Calculate totals - only from current month table
     for si_row in self.sales_invoice_table:
         allocated = Decimal(str(si_row.allocated_amount or 0))
         if allocated <= 0:
@@ -788,3 +977,187 @@ def calculate_tax_template_totals(self):
         
         # Add to total sum
         self.total_allocated_sum = float(Decimal(str(self.total_allocated_sum or 0)) + allocated)
+
+@frappe.whitelist()
+def get_payment_entries_previous_months(year, month, customers=None, min_amount=None, max_amount=None):
+    """
+    Get Payment Entries from previous VAT Allocation documents where unallocated_amount > 0
+    Returns the most recent state of each Payment Entry
+    """
+    # Convert month name to number
+    months = {
+        "January": 1, "February": 2, "March": 3, "April": 4,
+        "May": 5, "June": 6, "July": 7, "August": 8,
+        "September": 9, "October": 10, "November": 11, "December": 12
+    }
+    
+    month_number = months.get(month)
+    if not month_number:
+        frappe.throw(_("Invalid month"))
+    
+    # Parse customers filter
+    customer_list = None
+    if customers:
+        if isinstance(customers, str):
+            customers = json.loads(customers)
+        if customers and len(customers) > 0:
+            customer_list = [c.get('customer') for c in customers if c.get('customer')]
+    
+    # Find all previous VAT Allocation documents
+    vat_allocations = frappe.db.sql("""
+        SELECT name, year, month
+        FROM `tabVAT allocation`
+        WHERE docstatus = 1
+        AND (
+            year < %(year)s
+            OR (year = %(year)s AND month < %(month)s)
+        )
+        ORDER BY year DESC, month DESC
+    """, {
+        'year': year,
+        'month': month_number
+    }, as_dict=1)
+    
+    if not vat_allocations:
+        return []
+    
+    # Collect all payment entries with unallocated_amount > 0
+    # Keep only the most recent entry for each payment_entry
+    payment_entries_map = {}
+    
+    for vat_alloc in vat_allocations:
+        # Get payment entries from this VAT Allocation
+        entries = frappe.db.sql("""
+            SELECT 
+                payment_entry,
+                customer,
+                payment_entry_amount,
+                vat_journal_entry,
+                vat_amount,
+                vat_allocated_amount,
+                vat_free_amount,
+                vat_allocated_allocated,
+                vat_free_allocated,
+                unallocated_amount
+            FROM `tabVAT allocation payment entry`
+            WHERE parent = %(parent)s
+            AND unallocated_amount > 0
+        """, {
+            'parent': vat_alloc.name
+        }, as_dict=1)
+        
+        for entry in entries:
+            # Apply customer filter
+            if customer_list and entry.customer not in customer_list:
+                continue
+            
+            # Apply min/max amount filters to payment_entry_amount
+            if min_amount and (entry.payment_entry_amount or 0) < float(min_amount):
+                continue
+            if max_amount and (entry.payment_entry_amount or 0) > float(max_amount):
+                continue
+            
+            # Keep only the most recent (first encountered due to ORDER BY DESC)
+            if entry.payment_entry not in payment_entries_map:
+                # Calculate remaining amounts
+                vat_allocated_remaining = Decimal(str(entry.vat_allocated_amount or 0)) - Decimal(str(entry.vat_allocated_allocated or 0))
+                vat_free_remaining = Decimal(str(entry.vat_free_amount or 0)) - Decimal(str(entry.vat_free_allocated or 0))
+                
+                payment_entries_map[entry.payment_entry] = {
+                    'payment_entry': entry.payment_entry,
+                    'customer': entry.customer,
+                    'payment_entry_amount': entry.payment_entry_amount,
+                    'vat_journal_entry': entry.vat_journal_entry,
+                    'vat_amount': entry.vat_amount,
+                    'vat_allocated_amount': float(vat_allocated_remaining),
+                    'vat_free_amount': float(vat_free_remaining),
+                    'unallocated_amount': 0,  # Will be calculated
+                    'allocated_amount': 0,
+                    'vat_allocated_allocated': 0,
+                    'vat_free_allocated': 0
+                }
+    
+    # Convert to list
+    result = list(payment_entries_map.values())
+    
+    # Sort by payment_entry
+    result.sort(key=lambda x: x['payment_entry'])
+    
+    return result
+
+@frappe.whitelist()
+def get_payment_entries_with_previous(year, month, customers=None, min_amount=None, max_amount=None):
+    """
+    Get Payment Entries - both current month and previous months with unallocated amounts
+    """
+    # Get current month payment entries
+    current_entries = get_payment_entries(year, month, customers, min_amount, max_amount)
+    
+    # Get previous months payment entries
+    previous_entries = get_payment_entries_previous_months(year, month, customers, min_amount, max_amount)
+    
+    # Create a set of payment_entry names from current month
+    current_pe_names = {entry['payment_entry'] for entry in current_entries}
+    
+    # Filter out previous entries that are already in current month
+    filtered_previous = [entry for entry in previous_entries if entry['payment_entry'] not in current_pe_names]
+    
+    # Combine and return
+    return current_entries + filtered_previous
+
+@frappe.whitelist()
+@frappe.validate_and_sanitize_search_inputs
+def get_payment_entry_query(doctype, txt, searchfield, start, page_len, filters):
+    """
+    Custom query for filtering Payment Entries - includes both current month and those with remaining balance
+    """
+    year = filters.get('year')
+    month = filters.get('month')
+    
+    if not all([year, month]):
+        return []
+    
+    # Convert month name to number
+    months = {
+        "January": 1, "February": 2, "March": 3, "April": 4,
+        "May": 5, "June": 6, "July": 7, "August": 8,
+        "September": 9, "October": 10, "November": 11, "December": 12
+    }
+    
+    month_number = months.get(month)
+    if not month_number:
+        return []
+    
+    # Get Payment Entries from current month OR from previous VAT Allocations with balance
+    return frappe.db.sql("""
+        SELECT DISTINCT pe.name, pe.posting_date, pe.paid_amount
+        FROM `tabPayment Entry` pe
+        WHERE pe.docstatus = 1
+        AND pe.payment_type = 'Receive'
+        AND pe.party_type = 'Customer'
+        AND pe.name LIKE %(txt)s
+        AND (
+            (YEAR(pe.posting_date) = %(year)s AND MONTH(pe.posting_date) = %(month)s)
+            OR 
+            EXISTS (
+                SELECT 1 
+                FROM `tabVAT allocation payment entry` vape
+                INNER JOIN `tabVAT allocation` va ON va.name = vape.parent
+                WHERE vape.payment_entry = pe.name
+                AND va.docstatus = 1
+                AND vape.unallocated_amount > 0
+                AND (
+                    va.year < %(year)s
+                    OR (va.year = %(year)s AND va.month < %(month)s)
+                )
+            )
+        )
+        ORDER BY pe.posting_date DESC
+        LIMIT %(start)s, %(page_len)s
+    """, {
+        'year': year,
+        'month': month_number,
+        'txt': f"%{txt}%",
+        'start': start,
+        'page_len': page_len
+    })        

taxes_az/taxes_az/doctype/vat_allocation_sales_invoice_previous_months/vat_allocation_sales_invoice_previous_months.json

@@ -0,0 +1,89 @@
+{
+ "actions": [],
+ "allow_rename": 1,
+ "creation": "2025-10-07 14:07:17.398766",
+ "doctype": "DocType",
+ "editable_grid": 1,
+ "engine": "InnoDB",
+ "field_order": [
+  "customer",
+  "payment_entry",
+  "item_tax_template",
+  "tax_article",
+  "amount",
+  "allocated_amount",
+  "unallocated_amount"
+ ],
+ "fields": [
+  {
+   "fieldname": "customer",
+   "fieldtype": "Link",
+   "in_list_view": 1,
+   "label": "Customer",
+   "options": "Customer",
+   "read_only": 1
+  },
+  {
+   "fieldname": "payment_entry",
+   "fieldtype": "Link",
+   "hidden": 1,
+   "in_list_view": 1,
+   "label": "Payment Entry",
+   "options": "Payment Entry"
+  },
+  {
+   "fieldname": "item_tax_template",
+   "fieldtype": "Link",
+   "in_list_view": 1,
+   "label": "Item tax template",
+   "options": "Item Tax Template",
+   "precision": "2",
+   "read_only": 1
+  },
+  {
+   "fieldname": "tax_article",
+   "fieldtype": "Link",
+   "in_list_view": 1,
+   "label": "Tax Article",
+   "options": "Tax Article",
+   "precision": "2",
+   "read_only": 1
+  },
+  {
+   "fieldname": "amount",
+   "fieldtype": "Currency",
+   "in_list_view": 1,
+   "label": "Amount",
+   "precision": "2",
+   "read_only": 1
+  },
+  {
+   "fieldname": "allocated_amount",
+   "fieldtype": "Currency",
+   "in_list_view": 1,
+   "label": "Allocated amount",
+   "precision": "2",
+   "read_only": 1
+  },
+  {
+   "fieldname": "unallocated_amount",
+   "fieldtype": "Currency",
+   "in_list_view": 1,
+   "label": "Unallocated amount",
+   "precision": "2",
+   "read_only": 1
+  }
+ ],
+ "index_web_pages_for_search": 1,
+ "istable": 1,
+ "links": [],
+ "modified": "2025-10-07 14:07:17.398766",
+ "modified_by": "Administrator",
+ "module": "Taxes Az",
+ "name": "VAT allocation sales invoice previous months",
+ "owner": "Administrator",
+ "permissions": [],
+ "sort_field": "creation",
+ "sort_order": "DESC",
+ "states": []
+}

taxes_az/taxes_az/doctype/vat_allocation_sales_invoice_previous_months/vat_allocation_sales_invoice_previous_months.py

@@ -0,0 +1,9 @@
+# Copyright (c) 2025, Jey Soft and contributors
+# For license information, please see license.txt
+
+# import frappe
+from frappe.model.document import Document
+
+
+class VATallocationsalesinvoicepreviousmonths(Document):
+	pass