{% extends "basic/base_template.html" %}

{% block pageName %}
Master Report Query
{% endblock pageName %}

{% block content %}

<!--begin::Form Validation-->
<div class="card card-info card-outline mb-4">
    <!--begin::Header-->
    <!--end::Header-->
    <!--begin::Form-->
    <form action="{% url 'master_report_pdf' %}" target="_blank" method="post" class="needs-validation" novalidate>
      {% csrf_token %}
      
      <!--begin::Body-->
      <div class="card-body">
        <!--begin::Row-->
        <div class="row g-3">
        <!--begin::Col-->
            <div class="col-md-6">
                <label for="year" class="form-label" >Year</label>
                <input type="number" class="form-control" id="year" name="year" placeholder="Ex: 2025" value={{year}} required>
                <div class="invalid-feedback">Please provide a valid Year.</div>
            </div>
          <!--end::Col-->
          <!--begin::Col-->
          {% if "master_report_admin" in module_names %}
            <div class="col-md-6">
                <label for="battalion" class="form-label">Unit</label>
                <select class="form-select" id="battalion" name="battalion">
                    <option value="" selected >Select...</option>
                    {% for i in battalions %}
                    <option value={{ i.id}}>{{ i.name }}</option>
                    {% endfor %}
                </select>
                <div class="invalid-feedback">Please select a Unit.</div>
            </div>
          {% endif %}
          <!--end::Col-->
          <!--begin::Col-->
          {% if "master_report_battalion" in module_names or "master_report_admin" in module_names %}
            <div class="col-md-6">
                <label for="company" class="form-label">Sub Unit</label>
                <select class="form-select" id="company" name="company">
                    <option selected disabled >Choose...</option>
                    {% for i in companies %}
                    <option value={{ i.id}}>{{ i.name }}</option>
                    {% endfor %}
                </select>
                <div class="invalid-feedback">Please select a Sub Unit.</div>
            </div>
          {% endif %}
          <!--end::Col-->
        </div>
        <!--end::Row-->
      </div>
      <!--end::Body-->
      <!--begin::Footer-->
      <div class="card-footer">
        <button class="btn btn-success" type="submit"><i class="bi bi-printer"></i> Generate PDF</button>
      </div>
      <!--end::Footer-->
    </form>
    <!--end::Form-->
    <!--begin::JavaScript-->
    <script>
      // Example starter JavaScript for disabling form submissions if there are invalid fields
      (() => {
        "use strict";
  
        // Fetch all the forms we want to apply custom Bootstrap validation styles to
        const forms = document.querySelectorAll(".needs-validation");
  
        // Loop over them and prevent submission
        Array.from(forms).forEach((form) => {
          form.addEventListener(
            "submit",
            (event) => {
              if (!form.checkValidity()) {
                event.preventDefault();
                event.stopPropagation();
              }
  
              form.classList.add("was-validated");
            },
            false
          );
        });
      })();
    </script>
<script>
  $(document).ready(function () {
    // Safe function to load subordinates
    function loadSubordinates(parentId, level, targetSelect) {
      $(targetSelect).html('<option value="">Loading...</option>');

      $.ajax({
        url: "{% url 'get_subordinates' %}",
        data: { parent_id: parentId, level: level },
        success: function (data) {
          $(targetSelect).html('<option value="">Select</option>');

          $.each(data, function (index, item) {
            // ✅ Safe DOM insertion
            const option = $('<option></option>')
              .attr('value', item.id)
              .text(item.name);
            $(targetSelect).append(option);
          });
        },
        error: function () {
          $(targetSelect).html('<option value="">Error loading data</option>');
        },
      });
    }

    // When Battalion is selected
    $("#battalion").change(function () {
      const battalionId = $(this).val();
      $("#company, #member").html('<option value="">Select</option>');

      if (battalionId) {
        loadSubordinates(battalionId, "company", "#company");
      }
    });
  });
</script>
    <!--end::JavaScript-->
  </div>
  <!--end::Form Validation-->



{% endblock content %}