// 1 START: Admin Page — Settings + Actions + Self-check (calls helpers below)
if (!defined('ABSPATH')) { exit; }

function gmm_temp_admin_page() {
    if (!current_user_can('manage_options')) { return; }

    // Handle actions first (messages shown at top)
    $action_msg = '';
    if (isset($_POST['gmm_temp_action'])) {
        if ($_POST['gmm_temp_action'] === 'create_posts') {
            $action_msg = gmm_temp_action_create_posts();
        } elseif ($_POST['gmm_temp_action'] === 'gen_folder_images') {
            $action_msg = gmm_temp_action_generate_folder_images();
        }
    }

    $root = get_option(GMM_TEMP_OPT_ROOT, '');
    $phid = (int) get_option(GMM_TEMP_OPT_PLACEHOLDER, 0);
    $font_opt = get_option('gmm_temp_font_path', '');

    echo '<div class="wrap"><h1>GMM Temp — v0.0</h1>';
    echo '<p><strong>Status:</strong> Tools to preview, create/update draft posts, and generate folder images.</p>';

    if ($action_msg) {
        echo '<div class="notice notice-info is-dismissible"><p>'.wp_kses_post($action_msg).'</p></div>';
    }

    echo '<form method="post" action="options.php">';
    settings_fields('gmm_temp_group');
    do_settings_sections('gmm_temp_group');
    echo '<table class="form-table" role="presentation">';
    echo '<tr><th scope="row">Root path to <code>/niches</code></th><td><input name="'.esc_attr(GMM_TEMP_OPT_ROOT).'" type="text" value="'.esc_attr($root).'" class="regular-text code" placeholder="/var/web/site/public_html/niches/"></td></tr>';
    echo '<tr><th scope="row">Placeholder Attachment ID</th><td><input name="'.esc_attr(GMM_TEMP_OPT_PLACEHOLDER).'" type="number" value="'.esc_attr($phid).'" class="small-text"></td></tr>';
    echo '</table>';
    submit_button('Save Settings');
    echo '</form>';

    // Helpers (read-only)
    gmm_temp_render_root_hints();
    gmm_temp_preview_candidates();

    // Action: Create/Update Posts
    echo '<div class="gmm-temp-card" style="margin-top:16px;padding:12px;border:1px solid #ddd;border-radius:8px;background:#fff">';
    echo '<h2 style="margin-top:0">Action — Create/Update Posts (first-level folders)</h2>';
    echo '<p>Creates or updates <strong>draft</strong> posts (title “{Folder} Media”, slug “{folder}-media”), assigns the folder sub-category only, adds a matching tag, and sets a featured image if available.</p>';
    echo '<form method="post">';
    wp_nonce_field('gmm_temp_create_posts');
    echo '<input type="hidden" name="gmm_temp_action" value="create_posts">';
    submit_button('Create/Update Posts', 'primary', 'submit', false);
    echo '</form>';
    echo '</div>';

    // Action: Generate Folder Images (+ optional font path)
    echo '<div class="gmm-temp-card" style="margin-top:16px;padding:12px;border:1px solid #ddd;border-radius:8px;background:#fff">';
    echo '<h2 style="margin-top:0">Action — Generate Folder Images</h2>';
    echo '<p>Overwrites <code>{folder}.jpg</code> in each first-level folder (size auto-detected from your Featured/Large image). Uses TTF text if a font path is provided or auto-detected, else bitmap fallback.</p>';
    echo '<form method="post">';
    wp_nonce_field('gmm_temp_gen_folder_images');
    echo '<input type="hidden" name="gmm_temp_action" value="gen_folder_images">';
    echo '<p><label for="gmm_temp_font_path"><strong>TTF font path</strong> (optional):</label><br>';
    echo '<input id="gmm_temp_font_path" name="gmm_temp_font_path" type="text" value="'.esc_attr($font_opt).'" class="regular-text code" placeholder="/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf"></p>';
    submit_button('Generate Folder Images', 'secondary', 'submit', false);
    echo '</form>';
    echo '</div>';

    // Self-check
    $checks = [
        'admin/settings.php'      => GMM_TEMP_DIR.'admin/settings.php',
        'admin/generator.php'     => GMM_TEMP_DIR.'admin/generator.php',
        'core/render.php'         => GMM_TEMP_DIR.'core/render.php',
        'core/files.php'          => GMM_TEMP_DIR.'core/files.php',
        'core/feature_image.php'  => GMM_TEMP_DIR.'core/feature_image.php',
    ];
    echo '<h2>Self-check</h2><ul style="list-style:disc;margin-left:20px">';
    foreach ($checks as $label => $file) {
        echo '<li>'.esc_html($label).': '.(file_exists($file) ? '✅' : '—').'</li>';
    }
    echo '</ul>';

    echo '</div>';
}
// 1 STOP: Admin Page — Settings + Actions + Self-check (calls helpers below)