{% extends "base.html" %}
{% block title %}{{ inspection.template.name }} — Inspection{% endblock %}

{% block extra_css %}
<link href="https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600&display=swap" rel="stylesheet">
<style>
  body { font-family: 'DM Sans', sans-serif; background: #eef0f4; }

  .insp-wrap  { max-width: 1000px; margin: 0 auto; padding: 0 1rem 4rem; }

  .insp-header {
    background: #1a1d23; color: #fff;
    padding: 1.1rem 1.75rem;
    border-radius: 12px 12px 0 0;
    display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  }
  .insp-header h4  { margin:0; font-weight:600; font-size:1.05rem; }
  .insp-header .sub{ font-size:.78rem; color:#94a3b8; margin-top:.2rem; }
  .freq-badge {
    font-size:.72rem; background:rgba(255,255,255,.15);
    padding:.28rem .65rem; border-radius:20px; font-weight:500; white-space:nowrap;
  }

  .insp-body {
    background:#fff; border:1px solid #e2e8f0; border-top:none;
    border-radius: 0 0 12px 12px; padding:1.75rem; overflow-x:auto;
    -webkit-overflow-scrolling: touch;
  }

  /* ── 12-col grid (matches form editor exactly) ── */
  .form-grid {
    display: grid;
    grid-template-columns: repeat(12, 72px);
    grid-auto-rows: 52px;   /* matches editor CELL_H — keeps proportions tight */
    gap: 4px 8px;
    width: max-content;
  }

  /* ── iPad / touch-device fluid grid override ──
     --fg-w is set by ResizeObserver in JS (see bottom of file),
     which measures the actual .insp-body clientWidth — no vw/scrollbar ambiguity.
     Falls back to a safe 100% - padding calculation if JS hasn't run yet.      */
  @media (max-width: 1194px) {
    .form-grid {
      --fg-gap: 4px;
      --fg-w: calc(100% - 2rem);   /* JS overrides this with measured px value */
      --fg-cell: calc((var(--fg-w) - 11 * var(--fg-gap)) / 12);
      grid-template-columns: repeat(12, var(--fg-cell));
      grid-auto-rows: minmax(calc(var(--fg-cell) * 0.72), auto);
      gap: var(--fg-gap);
      width: 100%;
    }
    .insp-body { padding: 1rem; }

    /* Rating stars: scale down to fit compressed grid cells on iPad */
    .rating-stars button { font-size: .9rem; min-height: 36px; min-width: 28px; }

    /* Pass/fail pills: allow wrapping on narrow cells */
    .pf-group { flex-wrap: wrap !important; gap: .4rem !important; }
    .pf-btn   { flex-shrink: 0; }

    /* Image upload cells: don't clip the chosen-file row */
    .upload-zone { overflow: visible; }

    /* Touch: larger tap targets for checkboxes and radios */
    .form-check-input { width: 1.1em; height: 1.1em; margin-top: .15rem; }
  }
  .fg-cell {
    /* overflow:visible so content (dropdowns, tall labels) is never silently clipped.
       align-content:start keeps items pinned to the top of the cell. */
    overflow: visible;
    display: flex;
    flex-direction: column;
    align-content: start;
    padding: .18rem .45rem;
    /* Min height ensures touch targets are reachable even on very short row spans */
    min-height: 36px;
  }
  .fg-cell .field-lbl {
    font-size:.74rem; font-weight:500; color:#64748b;
    margin-bottom:.2rem; display:block;
    white-space:nowrap; overflow:hidden; text-overflow:ellipsis; flex-shrink:0;
  }
  .required-mark { color:#dc2626; }
  .help-text { font-size:.72rem; color:#64748b; margin-top:.18rem; flex-shrink:0; }
  .field-error { font-size:.72rem; color:#dc2626; margin-top:.18rem; }

  .fg-cell .form-control,
  .fg-cell .form-select {
    font-size:.76rem; padding:.2rem .4rem;
    border-color:#e2e8f0; background:#f8fafc;
  }
  .fg-cell .form-control:focus,
  .fg-cell .form-select:focus  { border-color:#2563eb; background:#fff; box-shadow:none; }
  .fg-cell textarea.form-control { resize:none; flex:1; min-height:0; }
  .fg-cell .form-check-label { font-size:.76rem; color:#64748b; }
  .fg-cell .form-check-input  { margin-top:.18rem; }
  .fg-cell .form-check        { margin-bottom:.1rem; }

  /* Upload zone — <label> wrapper so iOS Safari reliably opens the file picker */
  .upload-zone {
    border:2px dashed #cbd5e1; border-radius:6px; flex:1; min-height:0;
    display:flex; flex-direction:row; align-items:center; justify-content:center;
    color:#64748b; background:#f8fafc; cursor:pointer; font-size:.74rem; gap:.35rem;
    padding:.2rem .4rem;
    transition:border-color .18s, background .18s;
    -webkit-tap-highlight-color: rgba(37,99,235,.08);
    position:relative; overflow:hidden;
  }
  .upload-zone:hover,
  .upload-zone:active { border-color:#2563eb; background:#eff6ff; color:#2563eb; }
  /* Hidden file input — clip trick keeps it accessible without the opacity:0/abs iOS bug */
  .upload-zone input[type=file] {
    position:absolute; width:1px; height:1px; overflow:hidden;
    clip:rect(0,0,0,0); white-space:nowrap;
  }
  .upload-zone i { font-size:.95rem; flex-shrink:0; pointer-events:none; }
  /* Left side: icon + text stack */
  .upload-main { display:flex; flex-direction:column; align-items:center; flex:1; pointer-events:none; gap:.1rem; }
  .upload-prompt { font-size:.7rem; pointer-events:none; }
  /* Right side: filename chip + remove button, shown only when a file is selected */
  .upload-chosen {
    display:none; flex-direction:column; align-items:flex-end; gap:.15rem;
    max-width:45%; flex-shrink:0;
  }
  .upload-chosen.has-file { display:flex; }
  .upload-fname {
    font-size:.65rem; color:#2563eb; font-weight:500;
    overflow:hidden; text-overflow:ellipsis; white-space:nowrap;
    max-width:100%; pointer-events:none;
  }
  .upload-clear {
    font-size:.62rem; padding:.08rem .3rem; line-height:1.4;
    background:#fee2e2; border:1px solid #fca5a5; border-radius:3px;
    color:#dc2626; cursor:pointer; pointer-events:all; white-space:nowrap;
  }
  .upload-clear:hover { background:#fecaca; }

  /* ── Pass / Fail pills ── */
  .pf-group { display:flex; gap:.5rem; flex-wrap:wrap; }
  .pf-btn {
    display: flex; align-items: center; gap: .35rem;
    cursor: pointer;
    padding: .4rem .85rem; border-radius: 20px;
    font-size: .84rem; font-weight: 600;
    border: 2px solid transparent;
    transition: background .15s, color .15s, border-color .15s;
    user-select: none;
    min-height: 36px;          /* 44px touch target via padding — no layout shift */
  }
  .pf-btn input[type=radio] { display: none; }
  /* Pass variants */
  .pf-btn.pf-pass          { border-color: #16a34a; color: #16a34a; background: transparent; }
  .pf-btn.pf-pass.pf-on,
  .pf-btn.pf-pass:has(input:checked) { background: #16a34a; color: #fff; }
  /* Fail variants */
  .pf-btn.pf-fail          { border-color: #dc2626; color: #dc2626; background: transparent; }
  .pf-btn.pf-fail.pf-on,
  .pf-btn.pf-fail:has(input:checked) { background: #dc2626; color: #fff; }
    flex:1; min-height:0; border-radius:6px; border:1px solid #e2e8f0;
    background:#f8fafc; position:relative; overflow:hidden;
  }
  .signature-pad-wrap canvas { width:100%; height:100%; cursor:crosshair; display:block; }
  .sig-clear {
    position:absolute; top:4px; right:4px;
    font-size:.65rem; padding:.15rem .4rem;
    background:rgba(255,255,255,.85); border:1px solid #cbd5e1; border-radius:4px;
    cursor:pointer; color:#64748b;
  }
  .sig-clear:hover { color:#dc2626; border-color:#dc2626; }

  .rating-stars { display:flex; flex-direction:row; flex-wrap:nowrap; gap:.2rem; align-items:center; padding-top:.05rem; }
  .rating-stars button {
    border:none; background:none; font-size:1.2rem; color:#cbd5e1;
    cursor:pointer; padding:0; line-height:1; transition:color .1s; flex-shrink:0;
  }
  .rating-stars button:hover,
  .rating-stars button.on { color:#f59e0b; }

  .section-divider {
    height:100%; display:flex; align-items:center; padding:0;
    border-top:2px solid #e2e8f0; padding-top:.4rem;
  }
  .section-divider strong { font-weight:700; color:#374151; font-size:.95rem; }

  .tbl-field { width:100%; border-collapse:collapse; font-size:.8rem; }
  .tbl-field th {
    background:#f1f5f9; font-weight:600; color:#374151;
    padding:.3rem .5rem; border:1px solid #e2e8f0; white-space:nowrap; font-size:.78rem;
  }
  .tbl-field td { border:1px solid #e2e8f0; padding:.15rem .25rem; }
  .tbl-input { width:100%; border:none; outline:none; font-size:.8rem; padding:.1rem .2rem; background:transparent; }
  .tbl-input:focus { background:#eff6ff; }

  /* sticky footer bar */
  .insp-footer {
    position:sticky; bottom:0; background:#1a1d23;
    border-radius:0 0 12px 12px;
    padding:.75rem 1.75rem;
    display:flex; align-items:center; justify-content:space-between; gap:1rem;
    margin-top:1.5rem;
  }
  .insp-footer .meta { color:#94a3b8; font-size:.8rem; }
  .insp-footer .meta strong { color:#e2e8f0; }

  /* iPad: footer stacks vertically, full-width buttons */
  @media (max-width: 1024px) {
    .insp-footer {
      flex-direction: column;
      align-items: stretch;
      padding: .75rem 1rem;
      gap: .5rem;
    }
    .insp-footer .btn { width: 100%; justify-content: center; }
    .insp-footer .meta { text-align: center; }

    /* Header: stack on narrow screens */
    .insp-header {
      flex-direction: column;
      align-items: flex-start;
      gap: .75rem;
      padding: 1rem;
    }
    .insp-header .d-flex.gap-2 { width: 100%; flex-wrap: wrap; }
    .insp-header .btn { flex: 1; justify-content: center; }

    .insp-wrap { padding: 0 .5rem 5rem; }
  }

  /* Touch: ensure 44px tap targets on footer buttons */
  @media (pointer: coarse) {
    .insp-footer .btn { min-height: 48px; font-size: 1rem; }
  }
</style>
{% endblock %}

{% block content %}
<div class="insp-wrap mt-3">
<form method="post" action="{{ url_for('inspections.execute', inspection_id=inspection.id) }}" enctype="multipart/form-data" id="inspectionForm" novalidate>
  <input type="hidden" name="csrf_token" value="{{ csrf_token() }}">

  {# ── Header ── #}
  <div class="insp-header">
    <div>
      <h4><i class="bi bi-clipboard-check"></i> {{ inspection.template.name }}</h4>
      <div class="sub">
        {{ inspection.facility.name }}
        {% if inspection.area %} · {{ inspection.area.name }}{% endif %}
        &nbsp;·&nbsp; Inspector: <strong style="color:#e2e8f0;">{{ inspection.inspector.display_name }}</strong>
      </div>
    </div>
    <div class="d-flex gap-2 align-items-center">
      <span class="freq-badge">{{ inspection.template.frequency|title }}</span>
      <button type="button"
              class="btn btn-sm btn-outline-danger btn-outline-light"
              id="flagIssueBtn"
              data-flag-url="{{ url_for('inspections.save_draft_ajax', inspection_id=inspection.id) }}"
              data-flag-redirect="{{ url_for('inspections.flag_issue', inspection_id=inspection.id) }}">
        <i class="bi bi-exclamation-triangle"></i> Flag for Attention
      </button>
    </div>
  </div>

  {# ── Form body ── #}
  <div class="insp-body">
    {% if form_fields %}

    <div class="form-grid">
      {% for field in form_fields %}
      {% set fid = field.id %}
      {% set saved = saved_responses.get(fid, '') %}

      <div class="fg-cell"
           style="grid-column: {{ field.col }} / span {{ field.colSpan }};
                  grid-row:    {{ field.row }} / span {{ field.rowSpan }};">

        {# ── Section label (display only) ── #}
        {% if field.type == 'section' %}
          <div class="section-divider"><strong>{{ field.label }}</strong></div>

        {# ── Static label ── #}
        {% elif field.type == 'label' %}
          {% set fs_map = {'small':'0.78rem','normal':'0.9rem','large':'1.05rem','x-large':'1.25rem'} %}
          <div style="font-size:{{ fs_map.get(field.font_size or 'normal','0.9rem') }};
                      font-weight:{{ field.font_weight or 'normal' }};
                      color:#374151;line-height:1.5;white-space:pre-wrap;overflow:hidden;height:100%;">
            {{ field.text_content or '' }}
          </div>

        {# ── Submit / Print / Email buttons (display in preview; no action needed here) ── #}
        {% elif field.type in ('button_submit','button_print','button_email') %}
          {# rendered by the sticky footer instead #}

        {# ── Text ── #}
        {% elif field.type == 'text' %}
          <label class="field-lbl">{{ field.label }}{% if field.required %}<span class="required-mark"> *</span>{% endif %}</label>
          <input type="text" class="form-control" name="field_{{ fid }}"
                 value="{{ saved }}" placeholder="{{ field.placeholder or '' }}"
                 {% if field.required %}required{% endif %}>
          {% if field.help_text %}<div class="help-text">{{ field.help_text }}</div>{% endif %}

        {# ── Textarea ── #}
        {% elif field.type == 'textarea' %}
          <label class="field-lbl">{{ field.label }}{% if field.required %}<span class="required-mark"> *</span>{% endif %}</label>
          <textarea class="form-control" name="field_{{ fid }}"
                    placeholder="{{ field.placeholder or '' }}"
                    {% if field.required %}required{% endif %}>{{ saved }}</textarea>
          {% if field.help_text %}<div class="help-text">{{ field.help_text }}</div>{% endif %}

        {# ── Number ── #}
        {% elif field.type == 'number' %}
          <label class="field-lbl">{{ field.label }}{% if field.required %}<span class="required-mark"> *</span>{% endif %}</label>
          <input type="number" class="form-control" name="field_{{ fid }}"
                 value="{{ saved }}" placeholder="{{ field.placeholder or '' }}"
                 {% if field.required %}required{% endif %}>
          {% if field.help_text %}<div class="help-text">{{ field.help_text }}</div>{% endif %}

        {# ── Date ── #}
        {% elif field.type == 'date' %}
          <label class="field-lbl">{{ field.label }}{% if field.required %}<span class="required-mark"> *</span>{% endif %}</label>
          <input type="date" class="form-control" name="field_{{ fid }}"
                 value="{{ saved }}" {% if field.required %}required{% endif %}>
          {% if field.help_text %}<div class="help-text">{{ field.help_text }}</div>{% endif %}

        {# ── Email ── #}
        {% elif field.type == 'email' %}
          <label class="field-lbl">{{ field.label }}{% if field.required %}<span class="required-mark"> *</span>{% endif %}</label>
          <input type="email" class="form-control" name="field_{{ fid }}"
                 value="{{ saved }}" placeholder="{{ field.placeholder or 'name@example.com' }}"
                 {% if field.required %}required{% endif %}>
          {% if field.help_text %}<div class="help-text">{{ field.help_text }}</div>{% endif %}

        {# ── Checkbox ── #}
        {% elif field.type == 'checkbox' %}
          <div class="form-check mt-1">
            <input class="form-check-input" type="checkbox" name="field_{{ fid }}"
                   id="f_{{ fid }}" value="true" {{ 'checked' if saved == 'true' }}>
            <label class="form-check-label" for="f_{{ fid }}">
              {{ field.label }}{% if field.required %}<span class="required-mark"> *</span>{% endif %}
            </label>
          </div>
          {% if field.help_text %}<div class="help-text">{{ field.help_text }}</div>{% endif %}

        {# ── Checkbox group ── #}
        {% elif field.type == 'checkbox_group' %}
          <label class="field-lbl">{{ field.label }}{% if field.required %}<span class="required-mark"> *</span>{% endif %}</label>
          {% for opt in field.options %}
          <div class="form-check">
            <input class="form-check-input" type="checkbox" name="field_{{ fid }}"
                   id="cg_{{ fid }}_{{ loop.index0 }}" value="{{ opt }}"
                   {{ 'checked' if opt in (saved if saved is iterable and saved is not string else []) }}>
            <label class="form-check-label" for="cg_{{ fid }}_{{ loop.index0 }}">{{ opt }}</label>
          </div>
          {% endfor %}
          {% if field.help_text %}<div class="help-text">{{ field.help_text }}</div>{% endif %}

        {# ── Radio ── #}
        {% elif field.type == 'radio' %}
          <label class="field-lbl">{{ field.label }}{% if field.required %}<span class="required-mark"> *</span>{% endif %}</label>
          {% for opt in field.options %}
          <div class="form-check">
            <input class="form-check-input" type="radio" name="field_{{ fid }}"
                   id="rg_{{ fid }}_{{ loop.index0 }}" value="{{ opt }}"
                   {{ 'checked' if saved == opt }}>
            <label class="form-check-label" for="rg_{{ fid }}_{{ loop.index0 }}">{{ opt }}</label>
          </div>
          {% endfor %}
          {% if field.help_text %}<div class="help-text">{{ field.help_text }}</div>{% endif %}

        {# ── Pass / Fail ── #}
        {% elif field.type == 'pass_fail' %}
          <label class="field-lbl">{{ field.label }}{% if field.required %}<span class="required-mark"> *</span>{% endif %}</label>
          {% set pf_options = field.options if field.options else ['Pass', 'Fail'] %}
          <div class="pf-group">
            {% for opt in pf_options %}
            {% set is_pass = opt.lower() in ('pass','yes','ok','good','acceptable','compliant') %}
            <label class="pf-btn {{ 'pf-pass' if is_pass else 'pf-fail' }}{{ ' pf-on' if saved == opt }}"
                   data-fid="{{ fid }}">
              <input type="radio" name="field_{{ fid }}" value="{{ opt }}"
                     {{ 'checked' if saved == opt }}
                     onchange="pfSelect(this)">
              <span>{{ opt }}</span>
            </label>
            {% endfor %}
          </div>
          {% if field.help_text %}<div class="help-text">{{ field.help_text }}</div>{% endif %}

        {# ── Select / Dropdown ── #}
        {% elif field.type == 'select' %}
          <label class="field-lbl">{{ field.label }}{% if field.required %}<span class="required-mark"> *</span>{% endif %}</label>
          <select class="form-select" name="field_{{ fid }}" {% if field.required %}required{% endif %}>
            <option value="">— Select —</option>
            {% for opt in field.options %}
            <option value="{{ opt }}" {{ 'selected' if saved == opt }}>{{ opt }}</option>
            {% endfor %}
          </select>
          {% if field.help_text %}<div class="help-text">{{ field.help_text }}</div>{% endif %}

        {# ── Rating (stars) ── #}
        {% elif field.type == 'rating' %}
          <label class="field-lbl">{{ field.label }}{% if field.required %}<span class="required-mark"> *</span>{% endif %}</label>
          <div class="rating-stars" data-rating="{{ saved or 0 }}">
            <input type="hidden" name="field_{{ fid }}" id="rating_input_{{ fid }}" value="{{ saved or 0 }}">
            {% for i in range(1, 6) %}
            <button type="button" data-val="{{ i }}" data-target="rating_input_{{ fid }}"
                    class="{{ 'on' if (saved|int) >= i }}"
                    onclick="setRating(this)">★</button>
            {% endfor %}
          </div>
          {% if field.help_text %}<div class="help-text">{{ field.help_text }}</div>{% endif %}

        {# ── Image / Photo upload ── #}
        {% elif field.type == 'image' %}
          <label class="field-lbl">{{ field.label }}{% if field.required %}<span class="required-mark"> *</span>{% endif %}</label>
          {# Single <label> element: tap anywhere to pick a photo.
             Filename + remove button appear on the right when a file is chosen. #}
          <label class="upload-zone" for="field_{{ fid }}" id="zone_{{ fid }}">
            <input type="file" name="field_{{ fid }}" id="field_{{ fid }}" accept="image/*"
                   onchange="showFileName(this)">
            <div class="upload-main">
              <i class="bi bi-cloud-upload"></i>
              <span class="upload-prompt">Tap to take / choose photo</span>
            </div>
            <div class="upload-chosen{% if saved %} has-file{% endif %}" id="chosen_{{ fid }}">
              <span class="upload-fname" id="fname_{{ fid }}">{% if saved %}{{ saved.split('/')[-1] }}{% endif %}</span>
              <button type="button" class="upload-clear" id="clear_{{ fid }}"
                      onclick="event.preventDefault(); event.stopPropagation(); clearUpload('{{ fid }}')">
                <i class="bi bi-x-circle"></i> Remove
              </button>
            </div>
          </label>
          {% if field.help_text %}<div class="help-text">{{ field.help_text }}</div>{% endif %}

        {# ── Signature ── #}
        {% elif field.type == 'signature' %}
          <label class="field-lbl">{{ field.label }}{% if field.required %}<span class="required-mark"> *</span>{% endif %}</label>
          <div class="signature-pad-wrap">
            <canvas id="sig_{{ fid }}" data-field="field_{{ fid }}"></canvas>
            <button type="button" class="sig-clear" onclick="clearSig('sig_{{ fid }}')">Clear</button>
            <input type="hidden" name="field_{{ fid }}" id="field_{{ fid }}" value="{{ saved }}">
          </div>
          {% if field.help_text %}<div class="help-text">{{ field.help_text }}</div>{% endif %}

        {# ── Table ── #}
        {% elif field.type == 'table' %}
          <label class="field-lbl">{{ field.label }}{% if field.required %}<span class="required-mark"> *</span>{% endif %}</label>
          <div style="overflow:auto;flex:1;min-height:0;">
            <table class="tbl-field">
              <thead><tr>
                {% for hdr in (field.col_headers or ['Column 1','Column 2','Column 3']) %}
                <th>{{ hdr }}</th>
                {% endfor %}
              </tr></thead>
              <tbody>
                {% set tbl_data = saved if saved is iterable and saved is not string else [] %}
                {% for r in range(field.table_rows or 3) %}
                <tr>
                  {% set row_data = tbl_data[r] if r < tbl_data|length else {} %}
                  {% for hdr in (field.col_headers or ['Column 1','Column 2','Column 3']) %}{% set c_idx = loop.index0 %}
                  <td>
                    <input type="text" class="tbl-input"
                           name="field_{{ fid }}_r{{ r }}_c{{ c_idx }}"
                           value="{{ row_data.get(hdr, '') }}">
                  </td>
                  {% endfor %}
                </tr>
                {% endfor %}
              </tbody>
            </table>
          </div>
          {% if field.help_text %}<div class="help-text">{{ field.help_text }}</div>{% endif %}

        {% endif %}
      </div>
      {% endfor %}
    </div>

    {% else %}
    <div class="text-center py-5 text-muted">
      <i class="bi bi-layout-text-sidebar-reverse" style="font-size:2.5rem;opacity:.3;"></i>
      <p class="mt-2 mb-0">This template has no form fields. Please add fields in the template editor.</p>
    </div>
    {% endif %}
  </div>

  {# ── Sticky footer ── #}
  <div class="insp-footer">
    <div class="meta">
      Started: <strong>{{ inspection.inspection_date.strftime('%Y-%m-%d %H:%M') }}</strong>
      &nbsp;·&nbsp; Template: <strong>{{ inspection.template.name }}</strong>
    </div>
    <div class="d-flex gap-2">
      <button type="submit" name="action" value="draft" class="btn btn-sm btn-outline-light">
        <i class="bi bi-floppy"></i> Save Draft
      </button>
      <button type="submit" name="action" value="submit" class="btn btn-success">
        <i class="bi bi-check-circle-fill"></i> Submit Inspection
      </button>
    </div>
  </div>

</form>
</div>
{% endblock %}

{% block extra_js %}
<script>
// ── Pass / Fail pill toggle ───────────────────────────────────────────────────
// Adds/removes .pf-on class instead of inline styles — works with CSS :has() fallback
function pfSelect(radio) {
  const group = radio.closest('.pf-group');
  if (!group) return;
  group.querySelectorAll('.pf-btn').forEach(function(btn) {
    btn.classList.remove('pf-on');
  });
  if (radio.checked) {
    radio.closest('.pf-btn').classList.add('pf-on');
  }
}

// ── Fluid grid width — ResizeObserver sets --fg-w on .form-grid ──────────────
// Avoids 100vw (includes scrollbar) and 100% on .form-grid itself (reports 0
// before first paint). Measures .insp-body which is always reliably sized.
(function () {
  function applyGridWidth() {
    const body = document.querySelector('.insp-body');
    const grid = document.querySelector('.form-grid');
    if (!body || !grid) return;
    // Available width = insp-body inner width minus its horizontal padding (1rem each side on iPad)
    const style   = getComputedStyle(body);
    const padH    = parseFloat(style.paddingLeft) + parseFloat(style.paddingRight);
    const available = body.clientWidth - padH;
    grid.style.setProperty('--fg-w', available + 'px');
  }

  // Run immediately and on every resize
  applyGridWidth();
  if (typeof ResizeObserver !== 'undefined') {
    new ResizeObserver(applyGridWidth).observe(document.querySelector('.insp-body') || document.body);
  } else {
    window.addEventListener('resize', applyGridWidth);
  }
}());

// ── Rating stars ─────────────────────────────────────────────────────────────
function setRating(btn) {
  const group   = btn.closest('.rating-stars');
  const clicked = parseInt(btn.dataset.val);
  const current = parseInt(group.dataset.rating || 0);
  const input   = document.getElementById(btn.dataset.target);

  // Toggle off: clicking the currently active star clears the rating to 0.
  // This allows removal of a single-star (or any) rating via a second click.
  const newVal = (clicked === current) ? 0 : clicked;

  group.dataset.rating = newVal;
  if (input) input.value = newVal;
  group.querySelectorAll('button').forEach(b => {
    b.classList.toggle('on', parseInt(b.dataset.val) <= newVal);
  });
}

// ── File upload: show filename + reveal the chosen panel ────────────────────
function showFileName(input) {
  const fid    = input.id.replace('field_', '');
  const fname  = document.getElementById('fname_'  + fid);
  const chosen = document.getElementById('chosen_' + fid);

  if (input.files && input.files.length > 0) {
    if (fname)  fname.textContent = input.files[0].name;
    if (chosen) chosen.classList.add('has-file');
  }
}

// ── Clear a photo upload field ────────────────────────────────────────────────
// iOS: input.files is read-only — replace the element to truly reset it.
function clearUpload(fid) {
  const input  = document.getElementById('field_'  + fid);
  const fname  = document.getElementById('fname_'  + fid);
  const chosen = document.getElementById('chosen_' + fid);

  if (input) {
    const newInput = input.cloneNode(false);
    newInput.value = '';
    newInput.addEventListener('change', function() { showFileName(this); });
    input.parentNode.replaceChild(newInput, input);
  }
  if (fname)  fname.textContent = '';
  if (chosen) chosen.classList.remove('has-file');
}

// ── Signature pads ────────────────────────────────────────────────────────────
const sigPads = {};
document.querySelectorAll('[id^="sig_"]').forEach(canvas => {
  const fid    = canvas.id;
  const input  = document.getElementById(canvas.dataset.field);
  const ctx    = canvas.getContext('2d');
  let drawing  = false;

  // size canvas to its container
  const resize = () => {
    const w = canvas.parentElement.clientWidth;
    const h = canvas.parentElement.clientHeight || 80;
    canvas.width  = w;
    canvas.height = h;
    ctx.strokeStyle = '#0f172a';
    ctx.lineWidth   = 1.8;
    ctx.lineCap     = 'round';
  };
  resize();
  new ResizeObserver(resize).observe(canvas.parentElement);

  // Restore saved signature
  if (input && input.value && input.value.startsWith('data:')) {
    const img = new Image();
    img.onload = () => ctx.drawImage(img, 0, 0);
    img.src = input.value;
  }

  canvas.addEventListener('mousedown',  e => { drawing = true; ctx.beginPath(); ctx.moveTo(...pos(e, canvas)); });
  canvas.addEventListener('mousemove',  e => { if (!drawing) return; ctx.lineTo(...pos(e, canvas)); ctx.stroke(); });
  canvas.addEventListener('mouseup',    () => { drawing = false; if (input) input.value = canvas.toDataURL(); });
  canvas.addEventListener('mouseleave', () => { drawing = false; });

  // Touch
  canvas.addEventListener('touchstart', e => { e.preventDefault(); drawing = true; ctx.beginPath(); ctx.moveTo(...pos(e.touches[0], canvas)); });
  canvas.addEventListener('touchmove',  e => { e.preventDefault(); if (!drawing) return; ctx.lineTo(...pos(e.touches[0], canvas)); ctx.stroke(); });
  canvas.addEventListener('touchend',   e => { drawing = false; if (input) input.value = canvas.toDataURL(); });

  sigPads[fid] = { ctx, canvas, input };
});

function pos(e, canvas) {
  const r = canvas.getBoundingClientRect();
  return [e.clientX - r.left, e.clientY - r.top];
}
function clearSig(id) {
  const p = sigPads[id];
  if (!p) return;
  p.ctx.clearRect(0, 0, p.canvas.width, p.canvas.height);
  if (p.input) p.input.value = '';
}
function collectSignatures() {
  // Ensure all signature canvases flush their dataURL to hidden inputs
  Object.values(sigPads).forEach(p => {
    if (p.input && p.canvas.width > 0) {
      p.input.value = p.canvas.toDataURL();
    }
  });
}

// ── Client-side image compression ─────────────────────────────────────────────
// Compresses photos via Canvas before upload to prevent 413 errors.
// Target: ≤ 1MB per image at 85% JPEG quality, max 1920px on longest side.
const IMG_MAX_PX   = 1920;   // max dimension in pixels
const IMG_QUALITY  = 0.85;   // JPEG quality (0–1)
const IMG_MAX_BYTES = 1 * 1024 * 1024;  // 1MB per compressed image

function compressImageFile(file) {
  return new Promise((resolve) => {
    // Only compress images that exceed the size threshold
    if (!file.type.startsWith('image/') || file.size <= IMG_MAX_BYTES) {
      return resolve(file);
    }

    const reader = new FileReader();
    reader.onload = (e) => {
      const img = new Image();
      img.onload = () => {
        // Calculate scaled dimensions
        let { width, height } = img;
        if (width > IMG_MAX_PX || height > IMG_MAX_PX) {
          if (width >= height) {
            height = Math.round(height * IMG_MAX_PX / width);
            width  = IMG_MAX_PX;
          } else {
            width  = Math.round(width * IMG_MAX_PX / height);
            height = IMG_MAX_PX;
          }
        }

        const canvas = document.createElement('canvas');
        canvas.width  = width;
        canvas.height = height;
        canvas.getContext('2d').drawImage(img, 0, 0, width, height);

        canvas.toBlob((blob) => {
          // Create a new File from the compressed blob, preserving the name
          const compressed = new File([blob], file.name, { type: 'image/jpeg', lastModified: Date.now() });
          resolve(compressed);
        }, 'image/jpeg', IMG_QUALITY);
      };
      img.src = e.target.result;
    };
    reader.readAsDataURL(file);
  });
}

// ── Form submission: compress images then submit natively ────────────────────
// Using native form POST (not fetch) avoids all iOS Safari redirect/fetch quirks.
// Images are compressed via Canvas → DataTransfer → file input replacement before submit.

// Track which button was clicked (submit vs draft)
let _submittingAction = 'submit';
document.querySelectorAll('#inspectionForm button[type="submit"]').forEach(btn => {
  btn.addEventListener('click', function() {
    _submittingAction = this.value || 'submit';
  }, true);  // capture phase — fires before submit event
});

document.getElementById('inspectionForm').addEventListener('submit', async function(e) {
  e.preventDefault();

  // Confirm before final submission (not for drafts)
  if (_submittingAction === 'submit') {
    if (!confirm('Submit this inspection? This action cannot be undone.')) return;
  }

  collectSignatures();  // Flush signature canvases to hidden inputs

  const form      = this;
  const fileInputs = Array.from(form.querySelectorAll('input[type="file"]'))
                          .filter(inp => inp.files && inp.files.length > 0);

  // Show spinner on the active button
  const activeBtn = Array.from(form.querySelectorAll('button[type="submit"]'))
                         .find(b => b.value === _submittingAction)
                    || form.querySelector('button[type="submit"]');
  const origHTML = activeBtn ? activeBtn.innerHTML : '';
  form.querySelectorAll('button[type="submit"]').forEach(b => b.disabled = true);
  if (activeBtn) {
    activeBtn.innerHTML = fileInputs.length
      ? '<span class="spinner-border spinner-border-sm me-1"></span> Uploading…'
      : '<span class="spinner-border spinner-border-sm me-1"></span> Saving…';
  }

  // Write the action value into a hidden field so the native POST includes it
  let actionInput = form.querySelector('input[name="action"]');
  if (!actionInput) {
    actionInput = document.createElement('input');
    actionInput.type  = 'hidden';
    actionInput.name  = 'action';
    form.appendChild(actionInput);
  }
  actionInput.value = _submittingAction;

  try {
    // Compress images and replace file input contents via DataTransfer
    for (const input of fileInputs) {
      const compressed = await compressImageFile(input.files[0]);
      // DataTransfer lets us programmatically set input.files (iOS 15.4+, all modern browsers)
      if (typeof DataTransfer !== 'undefined') {
        try {
          const dt = new DataTransfer();
          dt.items.add(compressed);
          input.files = dt.files;
        } catch (_) {
          // DataTransfer.items not supported — submit original file uncompressed
        }
      }
    }
    // Native form submit — browser handles multipart encoding and follows the redirect
    form.submit();
  } catch (err) {
    form.querySelectorAll('button[type="submit"]').forEach(b => b.disabled = false);
    if (activeBtn) activeBtn.innerHTML = origHTML;
    console.error('Inspection submit error:', err);
    alert('An error occurred. Please try again.');
  }
});

// ── Flag Issue: save draft via AJAX then navigate ────────────────────────────
(function () {
  const btn = document.getElementById('flagIssueBtn');
  if (!btn) return;

  btn.addEventListener('click', async function () {
    const saveDraftUrl  = btn.dataset.flagUrl;
    const redirectUrl   = btn.dataset.flagRedirect;

    // Collect all current form field values (non-file inputs only)
    const form     = document.getElementById('inspectionForm');
    const responses = {};
    form.querySelectorAll('input, textarea, select').forEach(el => {
      if (!el.name || !el.name.startsWith('field_')) return;
      if (el.type === 'file') return;  // files can't be JSON-serialised
      if (el.type === 'checkbox') {
        responses[el.name.replace('field_', '')] = el.checked ? 'true' : 'false';
      } else if (el.type === 'radio') {
        if (el.checked) responses[el.name.replace('field_', '')] = el.value;
      } else {
        responses[el.name.replace('field_', '')] = el.value;
      }
    });

    // Flush signature canvases to their hidden inputs before reading values
    collectSignatures();
    form.querySelectorAll('input[type="hidden"]').forEach(el => {
      if (!el.name || !el.name.startsWith('field_')) return;
      responses[el.name.replace('field_', '')] = el.value;
    });

    btn.disabled = true;
    btn.innerHTML = '<span class="spinner-border spinner-border-sm me-1"></span> Saving…';

    try {
      const res = await fetch(saveDraftUrl, {
        method:  'POST',
        headers: {
          'Content-Type': 'application/json',
          'X-CSRFToken':  document.querySelector('input[name="csrf_token"]').value,
        },
        body: JSON.stringify({ responses }),
      });
      const json = await res.json();
      if (json.ok) {
        window.location.href = redirectUrl;
      } else {
        alert('Could not save draft: ' + (json.error || 'Unknown error'));
        btn.disabled = false;
        btn.innerHTML = '<i class="bi bi-exclamation-triangle"></i> Flag for Attention';
      }
    } catch (err) {
      console.error('Flag Issue draft save error:', err);
      // Fall back to navigating directly without saving
      window.location.href = redirectUrl;
    }
  });
}());
</script>
{% endblock %}