wms-app/app/accounting/vat_report.php

<?php
  require_once __DIR__ . '/../session.php';
  require '../config.php';
  require '../include_header.php';
?>

<body>
  <?php require '../include_topbar.php'; ?>
  <?php require '../include_sidebar_ac.php'; ?>

  <main id="content" class="content py-15">
    <div class="container-fluid">

      <div class="row mb-5">
        <div class="col-12">
          <h1 class="fs-3 mb-1">VAT Report</h1>
          <p class="mb-0 text-muted">Output VAT (Sales Tax) and Input VAT (Purchase Tax) from posted journal entries</p>
        </div>
      </div>

      <!-- Filters -->
      <div class="card p-4 mb-4">
        <div class="row g-2 align-items-end">
          <div class="col-auto">
            <label class="form-label mb-1 small">From Date</label>
            <input type="text" id="f_from" class="form-control form-control-sm" placeholder="DD/MM/YYYY" style="width:160px;">
          </div>
          <div class="col-auto">
            <label class="form-label mb-1 small">To Date</label>
            <input type="text" id="f_to" class="form-control form-control-sm" placeholder="DD/MM/YYYY" style="width:160px;">
          </div>
          <div class="col-auto">
            <label class="form-label mb-1 small">Category</label>
            <select id="f_cat" class="form-select form-select-sm" style="width:180px;">
              <option value="">All</option>
              <option value="sales_tax">Output VAT (Sales)</option>
              <option value="purchase_tax">Input VAT (Purchase)</option>
            </select>
          </div>
          <div class="col-auto">
            <label class="form-label mb-1 small">Department</label>
            <select id="f_department" class="form-select form-select-sm" style="width:200px;">
              <option value="0">All Departments</option>
            </select>
          </div>
          <div class="col-auto">
            <button class="btn btn-secondary btn-sm" onclick="load_report()">
              <i class="ti ti-search me-1"></i>Run
            </button>
          </div>
          <div class="col-auto">
            <div class="dropdown">
              <a href="#" role="button" class="btn btn-outline-secondary btn-sm text-nowrap" data-bs-toggle="dropdown" aria-expanded="false">
                <i class="ti ti-download me-1"></i>Export
              </a>
              <div class="dropdown-menu dropdown-menu-end p-0" style="min-width:160px;">
                <div class="d-flex gap-3 align-items-center border-bottom px-3 py-3">
                  <i class="ti ti-download"></i><div><h4 class="mb-0 small">Export</h4></div>
                </div>
                <div class="p-3 d-flex flex-column gap-1 small lh-lg">
                  <a href="javascript:;" class="ac-export-link" onclick="export_report('csv')"><i class="ti ti-file-type-csv me-2"></i>CSV</a>
                  <a href="javascript:;" class="ac-export-link" onclick="export_report('xlsx')"><i class="ti ti-file-type-xls me-2"></i>Excel</a>
                  <a href="javascript:;" class="ac-export-link" onclick="export_report('pdf')"><i class="ti ti-file-type-pdf me-2"></i>PDF</a>
                </div>
              </div>
            </div>
          </div>
        </div>
      </div>

      <!-- Summary cards -->
      <div class="row g-3 mb-4" id="vat_summary" style="display:none;">
        <div class="col-md-4">
          <div class="card border-0 shadow-sm">
            <div class="card-body">
              <p class="text-muted small mb-1">Total Debit</p>
              <h4 class="mb-0 fw-bold" id="vat_debit">—</h4>
            </div>
          </div>
        </div>
        <div class="col-md-4">
          <div class="card border-0 shadow-sm">
            <div class="card-body">
              <p class="text-muted small mb-1">Total Credit</p>
              <h4 class="mb-0 fw-bold" id="vat_credit">—</h4>
            </div>
          </div>
        </div>
        <div class="col-md-4">
          <div class="card border-0 shadow-sm">
            <div class="card-body">
              <p class="text-muted small mb-1">Net VAT (Credit − Debit)</p>
              <h4 class="mb-0 fw-bold" id="vat_net">—</h4>
            </div>
          </div>
        </div>
      </div>

      <!-- Table -->
      <div class="card">
        <div class="card-body p-0">
          <table class="table table-hover mb-0 table-sm">
            <thead class="table-primary border-light">
              <tr>
                <th>Date</th>
                <th>Period</th>
                <th>Type</th>
                <th>Department</th>
                <th>Reference</th>
                <th>Account</th>
                <th>Category</th>
                <th>Description</th>
                <th class="text-end">Debit</th>
                <th class="text-end">Credit</th>
              </tr>
            </thead>
            <tbody id="vat_tbody">
              <tr><td colspan="10" class="text-center text-muted py-5">Select a date range and click Run.</td></tr>
            </tbody>
          </table>
        </div>
      </div>

    </div>
  </main>

  <?php require '../include_ending.php'; ?>

  <script>
  var now = new Date();
  var curMonth = now.getFullYear() + '-' + String(now.getMonth()+1).padStart(2,'0');
  document.getElementById('f_from').value = curMonth + '-01';
  document.getElementById('f_to').value   = curMonth + '-' + String(new Date(now.getFullYear(), now.getMonth() + 1, 0).getDate()).padStart(2,'0');
  flatpickr('#f_from, #f_to', { dateFormat: 'Y-m-d', altInput: true, altFormat: 'd/m/Y', allowInput: true });

  var export_data = [];
  var cat_labels = { sales_tax: 'Output VAT', purchase_tax: 'Input VAT' };
  var src_labels = {
    invoice: 'Invoice', credit_note: 'Credit Note',
    purchase_invoice: 'Purchase Invoice', supplier_credit_note: 'Supplier Credit Note',
    receipt: 'Receipt', payment: 'Payment', manual: 'Manual',
  };

  load_departments();

  function load_departments() {
    ajax_request({
      url: server_url + 'accounting/api/engine/department.php',
      autoPrepare: true,
      checkRequired: 0,
      noLoading: true,
      action: 'read',
      onSuccess: function(res) {
        var html = '<option value="0">All Departments</option>';
        (res.output || []).filter(function(d){ return String(d.status) === '1'; }).forEach(function(d) {
          html += '<option value="' + d.id + '">' + escape_html(d.dept_code + ' - ' + d.dept_name) + '</option>';
        });
        document.getElementById('f_department').innerHTML = html;
      }
    });
  }

  function load_report() {
    var from = document.getElementById('f_from').value;
    var to   = document.getElementById('f_to').value;
    var cat  = document.getElementById('f_cat').value;
    var dept = document.getElementById('f_department').value || '0';
    if (!from || !to) { bootbox.alert('Select both dates.'); return; }

    export_data = [];
    document.getElementById('vat_tbody').innerHTML =
      '<tr><td colspan="10" class="text-center text-muted py-5"><span class="spinner-border spinner-border-sm me-2"></span>Loading...</td></tr>';
    document.getElementById('vat_summary').style.display = 'none';

    ajax_request({
      url: server_url + 'accounting/api/engine/get_vat_report.php',
      autoPrepare: true,
      checkRequired: 0,
      noLoading: true,
      action: 'read',
      data: { from_date: from, to_date: to, categories: cat ? [cat] : [], department_id: dept },
      onSuccess: function(res) {
        var d    = res.output;
        var rows = d.rows || [];

        document.getElementById('vat_debit').textContent  = format_number(d.total_debit);
        document.getElementById('vat_credit').textContent = format_number(d.total_credit);
        document.getElementById('vat_net').textContent    = format_number(parseFloat(d.total_credit) - parseFloat(d.total_debit));
        document.getElementById('vat_summary').style.display = '';

        if (rows.length === 0) {
          document.getElementById('vat_tbody').innerHTML =
            '<tr><td colspan="10" class="text-center text-muted py-5">No VAT entries found.</td></tr>';
          return;
        }

        export_data = rows.map(function(r) {
          return {
            date: r.entry_date||'', period: r.period||'',
            type: src_labels[r.source_type]||r.source_type,
            department: r.dept_code||'',
            reference: r.reference||'',
            account: r.account_code + ' ' + r.account_name,
            category: cat_labels[r.account_category]||r.account_category,
            description: r.description||'',
            debit: parseFloat(r.debit)||'',
            credit: parseFloat(r.credit)||'',
          };
        });
        var html = '';
        rows.forEach(function(r) {
          html += '<tr>' +
            '<td class="small">' + escape_html(format_date(r.entry_date)) + '</td>' +
            '<td class="small">' + escape_html(r.period) + '</td>' +
            '<td class="small"><span class="badge bg-secondary bg-opacity-10 text-secondary">' + escape_html(src_labels[r.source_type] || r.source_type) + '</span></td>' +
            '<td class="small">' + (r.dept_code ? escape_html(r.dept_code) : '<span class="text-muted">—</span>') + '</td>' +
            '<td class="small">' + escape_html(r.reference || '—') + '</td>' +
            '<td class="small">' + escape_html(r.account_code + ' ' + r.account_name) + '</td>' +
            '<td class="small"><span class="badge bg-info bg-opacity-10 text-info">' + escape_html(cat_labels[r.account_category] || r.account_category) + '</span></td>' +
            '<td class="small text-muted">' + escape_html(r.description || '—') + '</td>' +
            '<td class="text-end small">' + (parseFloat(r.debit) ? format_number(r.debit) : '—') + '</td>' +
            '<td class="text-end small">' + (parseFloat(r.credit) ? format_number(r.credit) : '—') + '</td>' +
          '</tr>';
        });
        document.getElementById('vat_tbody').innerHTML = html;
      }
    });
  }
  function export_report(format) {
    if (export_data.length === 0) { bootbox.alert('No data to export. Run the report first.'); return; }
    var from = document.getElementById('f_from').value;
    var to   = document.getElementById('f_to').value;
    var filename = 'vat_report_' + from + '_' + to;
    if (format === 'csv') {
      alasql('SELECT * INTO CSV("' + filename + '.csv",{headers:true}) FROM ?', [export_data]);
    } else if (format === 'xlsx') {
      alasql('SELECT * INTO XLSX("' + filename + '.xlsx",{headers:true}) FROM ?', [export_data]);
    } else if (format === 'pdf') {
      var { jsPDF } = window.jspdf;
      var doc = new jsPDF({ orientation: 'landscape' });
      doc.setFontSize(11);
      doc.text('VAT Report  ' + from + ' to ' + to, 14, 14);
      doc.autoTable({
        startY: 20,
        head: [['Date','Period','Type','Dept','Reference','Account','Category','Description','Debit','Credit']],
        body: export_data.map(function(r){ return [r.date,r.period,r.type,r.department,r.reference,r.account,r.category,r.description,r.debit,r.credit]; }),
        styles: { fontSize: 7 },
        headStyles: { fillColor: [41,128,185] },
      });
      doc.save(filename + '.pdf');
    }
  }
  </script>

  <script src="<?php echo $server_url?>assets/vendor/xlsx/0.18.5/xlsx.full.min.js"></script>
  <script src="<?php echo $server_url?>assets/vendor/jspdf/2.5.1/jspdf.umd.min.js"></script>
  <script src="<?php echo $server_url?>assets/vendor/jspdf-autotable/3.8.2/jspdf.plugin.autotable.min.js"></script>

</body>
</html>