wms-app/app/asset/depreciation.php

<?php
  session_start();
  require '../config.php';
  require '../include_header.php';
?>

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

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

      <div class="row">
        <div class="col-12">
          <div class="mb-5">
            <h1 class="fs-3 mb-1">Depreciation &amp; Amortization Runs</h1>
            <p class="mb-0">Charge each month's straight-line depreciation (tangible) or amortization (intangible)</p>
          </div>
        </div>
      </div>

      <!-- New run -->
      <div class="card mb-5" data-min-role="admin">
        <div class="card-body p-5">
          <div class="row g-3 align-items-end">
            <div class="col-md-4">
              <label class="form-label mb-1">Type</label>
              <select id="asset_class" class="form-select">
                <option value="tangible">Depreciation — tangible assets</option>
                <option value="intangible">Amortization — intangible assets</option>
              </select>
            </div>
            <div class="col-md-3">
              <label class="form-label mb-1">Run Through Month</label>
              <input type="text" id="through_period" class="form-control" placeholder="YYYY-MM">
            </div>
            <div class="col-md-5 d-flex gap-2">
              <button class="btn btn-secondary" onclick="preview_run()"><i class="ti ti-eye me-1"></i>Preview</button>
              <button class="btn btn-primary" id="btn_run" onclick="create_run()" disabled><i class="ti ti-player-play me-1"></i>Create Runs</button>
            </div>
          </div>
          <p class="text-muted small mt-3 mb-0">
            One run is created per month still due, oldest first. The in-service month counts as a full month and the
            disposal month is not charged. Each run becomes one GL entry that Accounting posts from
            <strong>Batch GL Entries</strong>, labelled <strong>[Asset Mgmt]</strong>.
          </p>
          <div id="preview_area" class="mt-4"></div>
        </div>
      </div>

      <!-- Runs -->
      <div class="card">
        <div class="card-body p-5">
          <div class="d-flex justify-content-between align-items-center mb-4 gap-3">
            <h2 class="fs-5 mb-0">Runs</h2>
            <select id="filter_class" class="form-select form-select-sm" style="width:220px;">
              <option value="">All types</option>
              <option value="tangible">Depreciation</option>
              <option value="intangible">Amortization</option>
            </select>
          </div>
          <div class="table-responsive">
            <table class="table table-hover mb-0 table-centered text-nowrap" id="run_table">
              <thead class="table-primary border-light">
                <tr>
                  <th>Run No.</th>
                  <th>Type</th>
                  <th>Month</th>
                  <th>Run Date</th>
                  <th class="text-end">Assets</th>
                  <th class="text-end">Amount</th>
                  <th>GL</th>
                  <th>Status</th>
                  <th></th>
                </tr>
              </thead>
              <tbody>
                <tr><td colspan="9" class="text-center text-muted py-5">Loading...</td></tr>
              </tbody>
              <tfoot></tfoot>
            </table>
          </div>
        </div>
      </div>

    </div>
  </main>

  <!-- Run detail -->
  <div class="modal fade" id="run_detail_modal" tabindex="-1">
    <div class="modal-dialog modal-lg modal-dialog-scrollable">
      <div class="modal-content">
        <div class="modal-header">
          <h5 class="modal-title" id="run_detail_title">Run</h5>
          <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
        </div>
        <div class="modal-body" id="run_detail_body"></div>
      </div>
    </div>
  </div>

  <?php require '../include_ending.php'; ?>
  <script src="<?php echo $server_url?>assets/js/asset.js"></script>

  <script>
  var can_admin = ['owner', 'admin'].includes(user_role);
  var all_runs  = [];
  var last_preview = null;

  function run_type_label(asset_class) {
    return asset_class === 'intangible' ? 'Amortization' : 'Depreciation';
  }

  function preview_run() {
    last_preview = null;
    set_btn_state('#btn_run', false);
    return ajax_request({
      url: server_url + 'asset/api/engine/depreciation_run.php',
      autoPrepare: true,
      checkRequired: 0,
      action: 'preview',
      data: { asset_class: $('#asset_class').val(), through_period: $('#through_period').val() },
      onSuccess: function(res) {
        var runs = res.output || [];
        last_preview = { asset_class: $('#asset_class').val(), through_period: $('#through_period').val(), runs: runs };
        render_preview(runs);
        set_btn_state('#btn_run', runs.length > 0);
      }
    });
  }

  function render_preview(runs) {
    if (!runs.length) {
      $('#preview_area').html('<div class="alert alert-success small mb-0"><i class="ti ti-circle-check me-1"></i>Nothing is due through this month.</div>');
      return;
    }
    var total = 0;
    var html = '<div class="table-responsive"><table class="table table-sm mb-0 table-centered">'
      + '<thead class="table-light"><tr><th>Month</th><th>Run Date</th><th class="text-end">Assets</th><th class="text-end">Amount</th><th></th></tr></thead><tbody>';
    runs.forEach(function(r, idx) {
      total += parseFloat(r.total) || 0;
      html += '<tr>'
        + '<td class="fw-semibold">' + escape_html(r.period) + '</td>'
        + '<td>' + format_date(r.run_date) + '</td>'
        + '<td class="text-end">' + r.asset_count + '</td>'
        + '<td class="text-end">' + format_number(r.total, 2) + '</td>'
        + '<td class="text-end"><a href="javascript:;" class="small" onclick="$(\'#preview_items_' + idx + '\').toggleClass(\'d-none\')">Assets</a></td>'
        + '</tr>'
        + '<tr id="preview_items_' + idx + '" class="d-none"><td colspan="5" class="bg-light">'
        + items_table(r.items, false)
        + '</td></tr>';
    });
    html += '</tbody><tfoot><tr class="fw-semibold"><td colspan="3">Total</td><td class="text-end">' + format_number(total, 2) + '</td><td></td></tr></tfoot></table></div>';
    $('#preview_area').html(html);
  }

  function items_table(items, with_dept) {
    var html = '<table class="table table-sm mb-0"><thead><tr><th>Asset</th><th>Category</th>'
      + (with_dept ? '<th>Dept</th>' : '')
      + '<th class="text-end">Amount</th><th class="text-end">Accumulated</th><th class="text-end">Book Value</th></tr></thead><tbody>';
    (items || []).forEach(function(i) {
      html += '<tr>'
        + '<td>' + escape_html(i.asset_number) + ' <span class="text-muted">' + escape_html(i.asset_name) + '</span></td>'
        + '<td>' + escape_html((i.category_code ? i.category_code + ' ' : '') + (i.category_name || '')) + '</td>'
        + (with_dept ? '<td>' + escape_html(i.dept_code || '—') + '</td>' : '')
        + '<td class="text-end">' + format_number(i.amount, 2) + '</td>'
        + '<td class="text-end">' + format_number(i.accumulated_after, 2) + '</td>'
        + '<td class="text-end">' + format_number(i.book_value_after, 2) + '</td>'
        + '</tr>';
    });
    return html + '</tbody></table>';
  }

  function create_run() {
    if (!last_preview || !last_preview.runs.length) return;
    var total = last_preview.runs.reduce(function(s, r) { return s + (parseFloat(r.total) || 0); }, 0);
    bootbox.confirm({
      message: 'Create <strong>' + last_preview.runs.length + '</strong> ' + run_type_label(last_preview.asset_class).toLowerCase()
        + ' run(s) through ' + escape_html(last_preview.through_period) + ', totalling <strong>' + format_number(total, 2) + '</strong>?',
      buttons: { confirm: { label: 'Create Runs', className: 'btn-primary' }, cancel: { label: 'Back', className: 'btn-secondary' } },
      callback: function(ok) {
        if (!ok) return;
        ajax_request({
          url: server_url + 'asset/api/engine/depreciation_run.php',
          autoPrepare: true,
          checkRequired: 0,
          action: 'run',
          data: { asset_class: last_preview.asset_class, through_period: last_preview.through_period },
          onSuccess: function(res) {
            toastr.success(res.message || 'Runs created.');
            $('#preview_area').empty();
            set_btn_state('#btn_run', false);
            last_preview = null;
            load_runs();
          }
        });
      }
    });
  }

  function load_runs() {
    return ajax_request({
      url: server_url + 'asset/api/engine/depreciation_run.php',
      autoPrepare: true,
      checkRequired: 0,
      action: 'list',
      data: { asset_class: '' },
      onSuccess: function(res) {
        all_runs = res.output || [];
        change_page(1);
      }
    });
  }

  function change_page(page_num) {
    var filter = $('#filter_class').val();
    var rows   = all_runs.filter(function(r) { return !filter || r.asset_class === filter; });
    var limit  = parseInt(prop_limit, 10);
    var offset = (page_num - 1) * limit;

    $('#run_table tfoot').html(generate_pagination('run_table', rows.length));
    if (!rows.length) {
      $('#run_table tbody').html('<tr><td colspan="9" class="text-center text-muted py-5">No runs yet.</td></tr>');
      return;
    }

    var html = '';
    rows.slice(offset, offset + limit).forEach(function(r) {
      var active = String(r.status) === '1';
      html += '<tr class="' + (active ? '' : 'text-muted') + '">'
        + '<td class="fw-semibold">' + escape_html(r.run_number) + '</td>'
        + '<td>' + run_type_label(r.asset_class) + '</td>'
        + '<td>' + escape_html(r.period) + '</td>'
        + '<td>' + format_date(r.run_date) + '</td>'
        + '<td class="text-end">' + r.asset_count + '</td>'
        + '<td class="text-end">' + format_number(r.total_amount, 2) + '</td>'
        + '<td>' + (active ? asset_gl_badge(r.gl_status) : '—') + '</td>'
        + '<td>' + (active ? '<span class="badge bg-success">Active</span>' : '<span class="badge bg-light text-dark">Void</span>') + '</td>'
        + '<td class="text-end">'
        + (active ? '<a href="javascript:;" onclick="show_run(' + r.id + ')"><i class="ti ti-eye fs-5"></i></a>' : '')
        + (active && can_admin ? '<a href="javascript:;" class="link-danger ms-2" title="Void run" onclick="void_run(' + r.id + ', \'' + escape_html(r.run_number) + '\', ' + r.gl_status + ')"><i class="ti ti-ban fs-5"></i></a>' : '')
        + '</td></tr>';
    });
    $('#run_table tbody').html(html);
  }

  function show_run(run_id) {
    $('#run_detail_body').html('<div class="text-center text-muted py-5">Loading...</div>');
    $('#run_detail_modal').modal('show');
    ajax_request({
      url: server_url + 'asset/api/engine/depreciation_run.php',
      autoPrepare: true,
      checkRequired: 0,
      action: 'detail',
      data: { run_id: run_id },
      onSuccess: function(res) {
        var run = res.output.run;
        $('#run_detail_title').text(run.run_number + ' · ' + run_type_label(run.asset_class) + ' ' + run.period);
        $('#run_detail_body').html(
          '<div class="small text-muted mb-3">Run date ' + format_date(run.run_date) + ' · '
          + run.asset_count + ' assets · total ' + format_number(run.total_amount, 2) + '</div>'
          + items_table(res.output.items, true)
        );
      }
    });
  }

  function void_run(run_id, run_number, gl_status) {
    var note = String(gl_status) === '1'
      ? '<br><span class="text-danger">Its GL entry is posted, so a reversal entry will be created.</span>'
      : '';
    bootbox.confirm({
      message: '<strong>Void run ' + run_number + '?</strong><br>Its charges are removed from the assets.' + note,
      buttons: { confirm: { label: 'Void', className: 'btn-danger' }, cancel: { label: 'Back', className: 'btn-secondary' } },
      callback: function(ok) {
        if (!ok) return;
        ajax_request({
          url: server_url + 'asset/api/engine/depreciation_run.php',
          autoPrepare: true,
          checkRequired: 0,
          action: 'void',
          data: { run_id: run_id },
          onSuccess: function(res) {
            toastr.success(res.message || 'Run voided.');
            load_runs();
          }
        });
      }
    });
  }

  $('#filter_class').on('change', function() { change_page(1); });
  $('#asset_class, #through_period').on('change', function() {
    last_preview = null;
    set_btn_state('#btn_run', false);
    $('#preview_area').empty();
  });

  $(async function() {
    var params = new URLSearchParams(window.location.search);
    if (params.get('class') === 'intangible' || params.get('class') === 'tangible') {
      $('#asset_class').val(params.get('class'));
    }
    flatpickr('#through_period', {
      plugins: [new monthSelectPlugin({ shorthand: true, dateFormat: 'Y-m', altFormat: 'M Y' })],
      defaultDate: current_period() + '-01',
      maxDate: new Date()
    });
    $('#through_period').val(current_period());

    try { await load_runs(); } catch (e) { console.log(e); }
  });
  </script>

</body>
</html>