From 0e357c0e42808ee41b3959d3ac01285016adca72 Mon Sep 17 00:00:00 2001
From: Alex Assistant <alex-assistant@local>
Date: Fri, 20 Feb 2026 15:08:13 +0300
Subject: [PATCH] Public: stacked before/after and editable welcome text; admin
 media/comments mode polish

---
 admin.php                        | 16 ++++++++++++++++
 index.php                        |  7 ++++---
 lib/db_gallery.php               | 18 ++++++++++++++++++
 migrations/002_site_settings.sql |  5 +++++
 4 files changed, 43 insertions(+), 3 deletions(-)
 create mode 100644 migrations/002_site_settings.sql

diff --git a/admin.php b/admin.php
index 0c37aa0..94ad555 100644
--- a/admin.php
+++ b/admin.php
@@ -36,6 +36,12 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
             $message = 'Раздел создан';
         }
 
+        if ($action === 'update_welcome') {
+            $text = trim((string)($_POST['welcome_text'] ?? ''));
+            settingSet('welcome_text', $text);
+            $message = 'Приветственное сообщение сохранено';
+        }
+
         if ($action === 'upload_before_bulk') {
             $sectionId = (int)($_POST['section_id'] ?? 0);
             if ($sectionId < 1 || !sectionById($sectionId)) throw new RuntimeException('Выбери раздел');
@@ -131,6 +137,7 @@ $activeSectionId = (int)($_GET['section_id'] ?? ($_POST['section_id'] ?? ($secti
 $photos = $activeSectionId > 0 ? photosBySection($activeSectionId) : [];
 $commenters = commentersAll();
 $latestComments = commentsLatest(80);
+$welcomeText = settingGet('welcome_text', 'Добро пожаловать в галерею. Выберите раздел слева, чтобы посмотреть фотографии.');
 $adminMode = (string)($_GET['mode'] ?? 'media');
 if (!in_array($adminMode, ['media', 'comments'], true)) {
     $adminMode = 'media';
@@ -304,6 +311,15 @@ function nextUniqueCodeName(string $base): string
 
     <main>
       <?php if ($adminMode === 'media'): ?>
+      <section class="card">
+        <h3>Приветственное сообщение (публичная часть)</h3>
+        <form method="post" action="?token=<?= urlencode($tokenIncoming) ?>&mode=media<?= $activeSectionId>0 ? '&section_id='.(int)$activeSectionId : '' ?>">
+          <input type="hidden" name="action" value="update_welcome"><input type="hidden" name="token" value="<?= h($tokenIncoming) ?>">
+          <p><textarea class="in" name="welcome_text" rows="3" placeholder="Текст приветствия"><?= h($welcomeText) ?></textarea></p>
+          <button class="btn" type="submit">Сохранить приветствие</button>
+        </form>
+      </section>
+
       <section class="card">
         <h3>Загрузка фото “до” в выбранный раздел</h3>
         <?php if ($activeSectionId > 0): ?>
diff --git a/index.php b/index.php
index ccb80a2..23c9683 100644
--- a/index.php
+++ b/index.php
@@ -35,6 +35,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST' && (string)($_POST['action'] ?? '') ==
 $sections = sectionsAll();
 $activeSectionId = (int)($_GET['section_id'] ?? 0);
 $activePhotoId = (int)($_GET['photo_id'] ?? 0);
+$welcomeText = settingGet('welcome_text', 'Добро пожаловать в галерею. Выберите раздел слева, чтобы посмотреть фотографии.');
 
 $photo = $activePhotoId > 0 ? photoById($activePhotoId) : null;
 $comments = $photo ? commentsByPhoto($activePhotoId) : [];
@@ -126,7 +127,7 @@ function outputWatermarked(string $path, string $mime): never
   <title>Фотогалерея</title>
   <link rel="icon" type="image/svg+xml" href="<?= h(assetUrl('favicon.svg')) ?>">
   <link rel="stylesheet" href="<?= h(assetUrl('style.css')) ?>">
-  <style>.note{color:#6b7280;font-size:13px}.page{display:grid;gap:16px;grid-template-columns:300px 1fr}.panel{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:14px}.sec a{display:block;padding:8px 10px;border-radius:8px;text-decoration:none;color:#111}.sec a.active{background:#eef4ff;color:#1f6feb}.cards{display:grid;gap:10px;grid-template-columns:repeat(auto-fill,minmax(180px,1fr))}.card{border:1px solid #e5e7eb;border-radius:10px;overflow:hidden;background:#fff}.card img{width:100%;height:130px;object-fit:cover}.cap{padding:8px;font-size:13px}.detail img{max-width:100%;border-radius:10px;border:1px solid #e5e7eb}.two{display:grid;gap:10px;grid-template-columns:1fr 1fr}.cmt{border-top:1px solid #eee;padding:8px 0}.muted{color:#6b7280;font-size:13px}</style>
+  <style>.note{color:#6b7280;font-size:13px}.page{display:grid;gap:16px;grid-template-columns:300px 1fr}.panel{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:14px}.sec a{display:block;padding:8px 10px;border-radius:8px;text-decoration:none;color:#111}.sec a.active{background:#eef4ff;color:#1f6feb}.cards{display:grid;gap:10px;grid-template-columns:repeat(auto-fill,minmax(180px,1fr))}.card{border:1px solid #e5e7eb;border-radius:10px;overflow:hidden;background:#fff}.card img{width:100%;height:130px;object-fit:cover}.cap{padding:8px;font-size:13px}.detail img{max-width:100%;border-radius:10px;border:1px solid #e5e7eb}.stack{display:grid;gap:12px;grid-template-columns:1fr}.cmt{border-top:1px solid #eee;padding:8px 0}.muted{color:#6b7280;font-size:13px}</style>
 </head>
 <body>
 <div class="app">
@@ -145,7 +146,7 @@ function outputWatermarked(string $path, string $mime): never
           <p><a href="?section_id=<?= (int)$photo['section_id'] ?><?= $viewerToken!=='' ? '&viewer=' . urlencode($viewerToken) : '' ?>">← к разделу</a></p>
           <h2><?= h((string)$photo['code_name']) ?></h2>
           <p class="muted"><?= h((string)($photo['description'] ?? '')) ?></p>
-          <div class="two">
+          <div class="stack">
             <?php if (!empty($photo['before_file_id'])): ?><div><div class="muted">До обработки</div><img src="?action=image&file_id=<?= (int)$photo['before_file_id'] ?>" alt=""></div><?php endif; ?>
             <?php if (!empty($photo['after_file_id'])): ?><div><div class="muted">После обработки (watermark)</div><img src="?action=image&file_id=<?= (int)$photo['after_file_id'] ?>" alt=""></div><?php endif; ?>
           </div>
@@ -171,7 +172,7 @@ function outputWatermarked(string $path, string $mime): never
         <section class="panel">
           <h3>Фотографии</h3>
           <?php if ($activeSectionId < 1): ?>
-            <p class="muted">Выберите раздел слева.</p>
+            <p class="muted"><?= nl2br(h($welcomeText)) ?></p>
           <?php elseif ($photos === []): ?>
             <p class="muted">В разделе пока нет фотографий.</p>
           <?php else: ?>
diff --git a/lib/db_gallery.php b/lib/db_gallery.php
index f47a21e..c7d4c22 100644
--- a/lib/db_gallery.php
+++ b/lib/db_gallery.php
@@ -155,3 +155,21 @@ function commentsLatest(int $limit = 100): array
             LIMIT ' . (int)$limit;
     return db()->query($sql)->fetchAll();
 }
+
+function settingGet(string $key, string $default = ''): string
+{
+    try {
+        $st = db()->prepare('SELECT `value` FROM site_settings WHERE `key`=:k');
+        $st->execute(['k' => $key]);
+        $v = $st->fetchColumn();
+        return is_string($v) ? $v : $default;
+    } catch (Throwable) {
+        return $default;
+    }
+}
+
+function settingSet(string $key, string $value): void
+{
+    $st = db()->prepare('INSERT INTO site_settings(`key`,`value`) VALUES (:k,:v) ON DUPLICATE KEY UPDATE `value`=VALUES(`value`)');
+    $st->execute(['k' => $key, 'v' => $value]);
+}
diff --git a/migrations/002_site_settings.sql b/migrations/002_site_settings.sql
new file mode 100644
index 0000000..aace77c
--- /dev/null
+++ b/migrations/002_site_settings.sql
@@ -0,0 +1,5 @@
+CREATE TABLE IF NOT EXISTS site_settings (
+  `key` VARCHAR(191) PRIMARY KEY,
+  `value` TEXT NULL,
+  updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;