{# Reusable media modal, included by admin.twig when needs_editor is true.
   The editor toolbar "media" button opens this modal. It fetches the list
   of media files from /admin/media-list (JSON) and, on click, inserts a
   snippet into the active CodeMirror editor at the cursor.

   Scope:
      - Default (content editor):          fetches /admin/media-list
      - Plugin editor (mediaPluginName set): fetches /admin/media-list?plugin=<name>
        which scans plugins/<name>/assets/ instead of content/.
      - Theme editor (mediaThemeName set):   fetches /admin/media-list?theme=<name>
        which scans themes/<name>/assets/ instead of content/.

   The snippet format depends on the editor's current mode (data-ext):
     - markdown (md): ![alt](url)
     - html/php: <img src="url" alt="name">
     - other (css, json, js, ...): the raw URL #}
<div class="modal fade" id="mediaModal" tabindex="-1" aria-labelledby="mediaModalLabel" aria-hidden="true">
    <div class="modal-dialog modal-lg modal-dialog-scrollable">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title" id="mediaModalLabel"><i class="bi bi-images"></i> {{ ta.media_insert|default('Media invoegen') }}</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
            </div>
            <div class="modal-body">
                <div class="input-group input-group-sm mb-3">
                    <span class="input-group-text bg-white"><i class="bi bi-search text-muted"></i></span>
                    <input type="search" id="mediaModalFilter" class="form-control" placeholder="{{ ta.media_filter|default('Filter op bestandsnaam...') }}" autocomplete="off" aria-label="{{ ta.media_filter|default('Filter') }}">
                </div>
                <div id="mediaModalGrid" class="row g-3">
                    <div class="col-12 text-center text-muted py-4" id="mediaModalLoading">
                        <div class="spinner-border spinner-border-sm" role="status"></div>
                        <span class="ms-2">{{ ta.media_loading|default('Media laden...') }}</span>
                    </div>
                    <div class="col-12 text-center text-muted py-4 d-none" id="mediaModalEmpty">
                        <i class="bi bi-image display-6 d-block mb-2"></i>
                        {{ mediaEmptyText|default('Geen media bestanden gevonden in content/. Upload eerst bestanden via Media in het menu.') }}
                    </div>
                    <div class="col-12 text-center text-danger py-4 d-none" id="mediaModalError">
                        <i class="bi bi-exclamation-triangle display-6 d-block mb-2"></i>
                        <span id="mediaModalErrorText"></span>
                    </div>
                    {# Filled by JS #}
                </div>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">{{ ta.cancel|default('Annuleren') }}</button>
            </div>
        </div>
    </div>
</div>

<script>
(function () {
    'use strict';

    var loaded = false;
    var items = [];

    function formatSnippet(url, name, ext, mode) {
        if (mode === 'markdown') {
            return '![' + name.replace(/[\[\]]/g, '') + '](' + url + ')';
        }
        if (mode === 'html' || mode === 'htmlmixed' || mode === 'php') {
            var imgExts = ['jpg', 'jpeg', 'png', 'gif', 'webp', 'svg'];
            if (imgExts.indexOf(ext) !== -1) {
                return '<img src="' + url + '" alt="' + name.replace(/"/g, '&quot;') + '">';
            }
            if (ext === 'pdf') {
                return '<a href="' + url + '">' + name + '</a>';
            }
            if (['mp4', 'webm', 'mov', 'ogg'].indexOf(ext) !== -1) {
                return '<video src="' + url + '" controls></video>';
            }
            if (['mp3', 'wav'].indexOf(ext) !== -1) {
                return '<audio src="' + url + '" controls></audio>';
            }
            return '<a href="' + url + '">' + name + '</a>';
        }
        // css, scss, js, json, etc.: just insert the URL
        return url;
    }

    function modeForExt(ext) {
        var map = { md: 'markdown', html: 'htmlmixed', php: 'php', css: 'css', scss: 'css', js: 'javascript', json: 'javascript' };
        return map[ext] || 'markdown';
    }

    function renderGrid() {
        var grid = document.getElementById('mediaModalGrid');
        if (!grid) return;

        // Clear previous items (keep loading/empty/error placeholders)
        Array.prototype.forEach.call(grid.querySelectorAll('[data-media-item]'), function (el) { el.remove(); });

        var q = (document.getElementById('mediaModalFilter').value || '').trim().toLowerCase();
        var shown = 0;

        items.forEach(function (item) {
            if (q && item.name.toLowerCase().indexOf(q) === -1) return;
            shown++;

            var col = document.createElement('div');
            col.className = 'col-6 col-md-4 col-lg-3';
            col.setAttribute('data-media-item', '1');

            var card = document.createElement('div');
            card.className = 'card shadow-sm h-100';
            card.style.cursor = 'pointer';
            card.title = item.name + ' (' + item.size + ')';

            if (item.is_image) {
                var img = document.createElement('img');
                img.src = item.url;
                img.className = 'card-img-top';
                img.style.objectFit = 'cover';
                img.style.height = '120px';
                img.loading = 'lazy';
                img.alt = item.name;
                card.appendChild(img);
            } else {
                var ph = document.createElement('div');
                ph.className = 'card-img-top d-flex align-items-center justify-content-center bg-light';
                ph.style.height = '120px';
                var icon = document.createElement('i');
                icon.className = 'bi bi-file-earmark-play display-6 text-muted';
                ph.appendChild(icon);
                card.appendChild(ph);
            }

            var body = document.createElement('div');
            body.className = 'card-body p-2';
            var label = document.createElement('p');
            label.className = 'card-text small text-muted text-truncate mb-0';
            label.textContent = item.name;
            body.appendChild(label);
            card.appendChild(body);

            card.addEventListener('click', function () {
                var editor = window.codeMirrorEditor;
                if (!editor) { return; }
                var ext = (document.getElementById('editor-textarea') || {}).dataset;
                var fileExt = (ext && ext.ext) ? ext.ext : 'md';
                var mode = modeForExt(fileExt);
                var snippet = formatSnippet(item.url, item.name, item.extension, mode);
                editor.replaceSelection(snippet);
                editor.focus();
                // Close the modal
                var modalEl = document.getElementById('mediaModal');
                if (window.bootstrap && modalEl) {
                    var inst = bootstrap.Modal.getInstance(modalEl);
                    if (inst) inst.hide();
                }
            });

            col.appendChild(card);
            grid.appendChild(col);
        });

        // Toggle empty placeholder
        var empty = document.getElementById('mediaModalEmpty');
        var loading = document.getElementById('mediaModalLoading');
        if (loading) loading.classList.add('d-none');
        if (empty) empty.classList.toggle('d-none', shown > 0);
    }

    function load() {
        if (loaded) { renderGrid(); return; }
        var plugin = {{ mediaPluginName|default('')|json_encode|raw }};
        var theme = {{ mediaThemeName|default('')|json_encode|raw }};
        var url = '/admin/media-list';
        if (plugin) { url += '?plugin=' + encodeURIComponent(plugin); }
        else if (theme) { url += '?theme=' + encodeURIComponent(theme); }
        fetch(url, { credentials: 'same-origin' })
            .then(function (r) {
                if (!r.ok) throw new Error('HTTP ' + r.status);
                return r.json();
            })
            .then(function (data) {
                items = Array.isArray(data) ? data : [];
                loaded = true;
                renderGrid();
            })
            .catch(function (err) {
                var loading = document.getElementById('mediaModalLoading');
                if (loading) loading.classList.add('d-none');
                var errEl = document.getElementById('mediaModalError');
                var errTxt = document.getElementById('mediaModalErrorText');
                if (errEl) errEl.classList.remove('d-none');
                if (errTxt) errTxt.textContent = String(err);
            });
    }

    // Load when the modal is first shown
    var modalEl = document.getElementById('mediaModal');
    if (modalEl) {
        modalEl.addEventListener('show.bs.modal', load);
    }
    // Filter as the user types
    var filter = document.getElementById('mediaModalFilter');
    if (filter) {
        filter.addEventListener('input', renderGrid);
    }
})();
</script>