PackIt/admin/mappings.php

<?php
require_once __DIR__ . '/auth.php';
require_once __DIR__ . '/layout.php';
require_admin();

$pdo = get_pdo();

// Handle add/remove mapping
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    $action = $_POST['action'] ?? '';
    $aid    = (int)($_POST['activityID'] ?? 0);
    $iid    = (int)($_POST['itemID']     ?? 0);

    if ($action === 'add' && $aid > 0 && $iid > 0) {
        $qty = max(1, (int)($_POST['quantity'] ?? 1));
        try {
            $pdo->prepare("INSERT IGNORE INTO activity_item_map (activityID,itemID,quantity) VALUES (?,?,?)")
                ->execute([$aid, $iid, $qty]);
            flash('success', 'Mapping added.');
        } catch (Exception $e) {
            flash('error', 'Could not add mapping.');
        }
    }
    if ($action === 'update' && $aid > 0 && $iid > 0) {
        $qty = max(1, (int)($_POST['quantity'] ?? 1));
        $pdo->prepare("UPDATE activity_item_map SET quantity=? WHERE activityID=? AND itemID=?")
            ->execute([$qty, $aid, $iid]);
        flash('success', 'Quantity updated.');
    }
    if ($action === 'remove' && $aid > 0 && $iid > 0) {
        $pdo->prepare("DELETE FROM activity_item_map WHERE activityID=? AND itemID=?")
            ->execute([$aid, $iid]);
        flash('success', 'Mapping removed.');
    }

    header('Location: mappings.php' . (isset($_GET['aid']) ? '?aid=' . (int)$_GET['aid'] : ''));
    exit;
}

// Load all activities and items for selects
$activities = $pdo->query("
    SELECT a.activityID, a.activityName, ag.groupName
    FROM activities a
    JOIN activity_groups ag ON ag.groupID = a.groupID
    ORDER BY ag.sortOrder, a.sortOrder, a.activityID
")->fetchAll();

$allItems = $pdo->query("
    SELECT i.itemID, i.itemName, ig.groupName
    FROM items i
    JOIN item_groups ig ON ig.groupID = i.groupID
    ORDER BY ig.sortOrder, i.itemName, i.itemID
")->fetchAll();

// Selected activity filter
$selectedAid = isset($_GET['aid']) ? (int)$_GET['aid'] : 0;
if (!$selectedAid && !empty($activities)) {
    $selectedAid = $activities[0]['activityID'];
}

// Get current mappings for selected activity
$mappedItemIds = [];
$mappedItems   = [];
if ($selectedAid) {
    $stmt = $pdo->prepare("
        SELECT i.itemID, i.itemName, ig.groupName, aim.quantity
        FROM activity_item_map aim
        JOIN items i          ON i.itemID   = aim.itemID
        JOIN item_groups ig   ON ig.groupID = i.groupID
        WHERE aim.activityID = ?
        ORDER BY ig.sortOrder, i.sortOrder
    ");
    $stmt->execute([$selectedAid]);
    $mappedItems   = $stmt->fetchAll();
    $mappedItemIds = array_column($mappedItems, 'itemID');
}

admin_head('Mappings', 'mappings.php');
show_alerts();
?>
<h1>Activity ↔ Item Mappings</h1>

<style>
/* Searchable item picker (replaces the unwieldy 100+ entry select) */
.item-picker{position:relative;}
.item-list{position:absolute;z-index:20;top:calc(100% + 4px);left:0;right:0;max-height:280px;overflow-y:auto;
           background:var(--surface);border:1.5px solid var(--border);border-radius:var(--radius);
           box-shadow:0 8px 24px rgba(0,0,0,.45);padding:.25rem 0;}
.item-group-label{padding:.4rem .8rem .2rem;font-size:.7rem;font-weight:600;letter-spacing:.08em;
                  text-transform:uppercase;color:var(--accent2);}
.item-option{padding:.35rem .8rem .35rem 1.3rem;font-size:.88rem;cursor:pointer;}
.item-option:hover,.item-option.active{background:rgba(232,197,71,.12);color:var(--accent);}
.item-empty{padding:.5rem .8rem;font-size:.85rem;color:var(--muted);}
</style>

<div style="display:flex;gap:1.5rem;flex-wrap:wrap;align-items:flex-start;">

  <!-- Activity selector -->
  <div class="card" style="min-width:220px;flex:0 0 220px;">
    <h2>Select Activity</h2>
    <?php foreach ($activities as $a): ?>
    <a href="?aid=<?= $a['activityID'] ?>"
       style="display:block;padding:.45rem .6rem;border-radius:6px;margin-bottom:.25rem;font-size:.85rem;text-decoration:none;
              background:<?= $selectedAid==$a['activityID'] ? 'rgba(232,197,71,.1)' : 'transparent' ?>;
              color:<?= $selectedAid==$a['activityID'] ? 'var(--accent)' : 'var(--muted)' ?>;
              border:1px solid <?= $selectedAid==$a['activityID'] ? 'rgba(232,197,71,.3)' : 'transparent' ?>;">
      <?= htmlspecialchars($a['activityName']) ?>
      <span style="float:right;font-size:.72rem;color:var(--muted)"><?= htmlspecialchars($a['groupName']) ?></span>
    </a>
    <?php endforeach; ?>
  </div>

  <!-- Mapping manager -->
  <div style="flex:1;min-width:300px;">
    <?php if ($selectedAid):
      // Get the activity name
      $actName = '';
      foreach ($activities as $a) { if ($a['activityID'] == $selectedAid) $actName = $a['activityName']; }
    ?>
    <div class="card">
      <h2 style="margin-bottom:1rem">Items for: <span style="color:var(--accent)"><?= htmlspecialchars($actName) ?></span></h2>

      <!-- Add new mapping -->
      <form method="POST" style="display:flex;gap:.5rem;align-items:flex-end;margin-bottom:1.25rem;flex-wrap:wrap;">
        <input type="hidden" name="action" value="add">
        <input type="hidden" name="activityID" value="<?= $selectedAid ?>">
        <div style="flex:1;min-width:200px;">
          <label for="item-search">Add Item</label>
          <div class="item-picker" id="item-picker">
            <input type="hidden" name="itemID" id="item-id">
            <input type="text" id="item-search" autocomplete="off" role="combobox"
                   aria-autocomplete="list" aria-expanded="false" aria-controls="item-list"
                   placeholder="Type to search items…" style="margin-bottom:0;">
            <div class="item-list" id="item-list" role="listbox" hidden>
              <?php
              // Group the still-unmapped items; the list is filtered client-side.
              $optGroups = [];
              foreach ($allItems as $it) {
                  if (in_array($it['itemID'], $mappedItemIds)) continue; // already mapped
                  $optGroups[$it['groupName']][] = $it;
              }
              foreach ($optGroups as $grpName => $grpItems):
              ?>
              <div class="item-group">
                <div class="item-group-label"><?= htmlspecialchars($grpName) ?></div>
                <?php foreach ($grpItems as $it): ?>
                <div class="item-option" role="option" tabindex="-1"
                     data-id="<?= $it['itemID'] ?>"
                     data-name="<?= htmlspecialchars($it['itemName']) ?>"><?= htmlspecialchars($it['itemName']) ?></div>
                <?php endforeach; ?>
              </div>
              <?php endforeach; ?>
              <div class="item-empty" hidden>No matching items.</div>
            </div>
          </div>
        </div>
        <div style="width:90px;">
          <label>Qty</label>
          <input type="number" name="quantity" value="1" min="1" style="margin-bottom:0;width:100%;">
        </div>
        <button type="submit" class="btn btn-primary">➕ Add</button>
      </form>

      <!-- Current mapped items -->
      <?php if (empty($mappedItems)): ?>
      <p style="color:var(--muted);font-size:.85rem">No items mapped yet.</p>
      <?php else: ?>
      <table class="tbl">
        <thead><tr><th>#</th><th>Item</th><th>Group</th><th>Qty</th><th></th></tr></thead>
        <tbody>
        <?php foreach ($mappedItems as $it): ?>
        <tr>
          <td style="color:var(--muted)"><?= $it['itemID'] ?></td>
          <td><?= htmlspecialchars($it['itemName']) ?></td>
          <td><span class="badge badge-group"><?= htmlspecialchars($it['groupName']) ?></span></td>
          <td>
            <form method="POST" style="display:flex;gap:.3rem;align-items:center;">
              <input type="hidden" name="action"     value="update">
              <input type="hidden" name="activityID" value="<?= $selectedAid ?>">
              <input type="hidden" name="itemID"     value="<?= $it['itemID'] ?>">
              <input type="number" name="quantity" value="<?= (int)$it['quantity'] ?>" min="1" style="margin:0;width:70px;">
              <button class="btn btn-sm btn-primary">💾</button>
            </form>
          </td>
          <td style="text-align:right">
            <form method="POST" onsubmit="return confirm('Remove this mapping?')">
              <input type="hidden" name="action"     value="remove">
              <input type="hidden" name="activityID" value="<?= $selectedAid ?>">
              <input type="hidden" name="itemID"     value="<?= $it['itemID'] ?>">
              <button class="btn btn-sm btn-danger">Remove</button>
            </form>
          </td>
        </tr>
        <?php endforeach; ?>
        </tbody>
      </table>
      <?php endif; ?>
    </div>
    <?php endif; ?>
  </div>

</div>

<script>
(function () {
  var picker = document.getElementById('item-picker');
  if (!picker) return;
  var search  = document.getElementById('item-search');
  var hidden  = document.getElementById('item-id');
  var list    = document.getElementById('item-list');
  var empty   = list.querySelector('.item-empty');
  var groups  = Array.prototype.slice.call(list.querySelectorAll('.item-group'));
  var options = Array.prototype.slice.call(list.querySelectorAll('.item-option'));
  var active  = null;

  // Lower-cased and stripped of diacritics, so "muhe" also finds "Mühe".
  function norm(s) {
    return s.toLowerCase().normalize('NFD').replace(/[\u0300-\u036f]/g, '');
  }
  options.forEach(function (o) { o.dataset.search = norm(o.dataset.name); });

  function setActive(el) {
    if (active) active.classList.remove('active');
    active = el;
    if (active) {
      active.classList.add('active');
      active.scrollIntoView({block: 'nearest'});
    }
  }

  function visibleOptions() {
    return options.filter(function (o) { return !o.hidden; });
  }

  function filter(showAll) {
    var q = showAll ? '' : norm(search.value.trim());
    options.forEach(function (o) {
      o.hidden = q !== '' && o.dataset.search.indexOf(q) === -1;
    });
    // Hide a group entirely when none of its items matched.
    groups.forEach(function (g) {
      var items = Array.prototype.slice.call(g.querySelectorAll('.item-option'));
      g.hidden = !items.some(function (o) { return !o.hidden; });
    });
    empty.hidden = visibleOptions().length > 0;
    setActive(visibleOptions()[0] || null);
  }

  function open() {
    list.hidden = false;
    search.setAttribute('aria-expanded', 'true');
  }

  function close() {
    list.hidden = true;
    search.setAttribute('aria-expanded', 'false');
    setActive(null);
  }

  function choose(option) {
    if (!option) return;
    hidden.value = option.dataset.id;
    search.value = option.dataset.name;
    filter();
    close();
  }

  search.addEventListener('input', function () {
    hidden.value = ''; // typing invalidates a previous pick
    filter();
    open();
  });
  search.addEventListener('focus', function () {
    // After a pick the field holds the full item name; offer the whole list again.
    var picked = !!hidden.value;
    if (picked) search.select();
    filter(picked);
    open();
  });
  search.addEventListener('keydown', function (e) {
    if (e.key === 'ArrowDown' || e.key === 'ArrowUp') {
      e.preventDefault();
      if (list.hidden) { filter(!!hidden.value); open(); return; }
      var vis = visibleOptions();
      if (!vis.length) return;
      var i = vis.indexOf(active);
      i = e.key === 'ArrowDown' ? (i + 1) % vis.length : (i <= 0 ? vis.length : i) - 1;
      setActive(vis[i]);
    } else if (e.key === 'Enter') {
      if (!list.hidden && active) { e.preventDefault(); choose(active); }
    } else if (e.key === 'Escape') {
      close();
    }
  });

  list.addEventListener('mousedown', function (e) {
    var option = e.target.closest('.item-option');
    if (option) { e.preventDefault(); choose(option); }
  });

  document.addEventListener('click', function (e) {
    if (!picker.contains(e.target)) close();
  });

  search.form.addEventListener('submit', function (e) {
    if (!hidden.value) {
      e.preventDefault();
      search.focus();
      filter();
      open();
    }
  });

  filter();
})();
</script>

<?php admin_foot(); ?>