feat: VivesPOS landing on Winter CMS 1.2 — theme + plugin + Dockerfile

- Base: wintercms/winter branch 1.2 (full framework)
- Theme vivespos: Canvas 7 + Bootstrap 5 CDN, custom CSS
- Layout: deferred GTM/GA4 tracking, JSON-LD SoftwareApplication
- Partials: hero (offline-first), features, modes (offline/nube toggle),
  screenshots, pricing (3 planes), comparison, FAQ, CTA
- Plugin VivesPOS.Site with ContactForm
- Dockerfile: PHP 8.2 Apache, port 80, healthcheck
- Added winter/wn-pages, blog, sitemap, seo plugins
- Active theme set to vivespos

modules/cms/classes/ThemeManager.php

@@ -0,0 +1,127 @@
+<?php namespace Cms\Classes;
+
+use File;
+use ApplicationException;
+use System\Models\Parameter;
+use Cms\Classes\Theme as CmsTheme;
+
+/**
+ * Theme manager
+ *
+ * @package winter\wn-cms-module
+ * @author Alexey Bobkov, Samuel Georges
+ */
+class ThemeManager
+{
+    use \Winter\Storm\Support\Traits\Singleton;
+
+    //
+    // Gateway spawned
+    //
+
+    /**
+     * Returns a collection of themes installed via the update gateway
+     * @return array
+     */
+    public function getInstalled()
+    {
+        return Parameter::get('system::theme.history', []);
+    }
+
+    /**
+     * Checks if a theme has ever been installed before.
+     * @param  string  $name Theme code
+     * @return boolean
+     */
+    public function isInstalled($name)
+    {
+        return array_key_exists($name, Parameter::get('system::theme.history', []));
+    }
+
+    /**
+     * Flags a theme as being installed, so it is not downloaded twice.
+     * @param string $code Theme code
+     * @param string|null $dirName
+     */
+    public function setInstalled($code, $dirName = null)
+    {
+        if (!$dirName) {
+            $dirName = strtolower(str_replace('.', '-', $code));
+        }
+
+        $history = Parameter::get('system::theme.history', []);
+        $history[$code] = $dirName;
+        Parameter::set('system::theme.history', $history);
+    }
+
+    /**
+     * Flags a theme as being uninstalled.
+     * @param string $code Theme code
+     */
+    public function setUninstalled($code)
+    {
+        $history = Parameter::get('system::theme.history', []);
+        if (array_key_exists($code, $history)) {
+            unset($history[$code]);
+        }
+
+        Parameter::set('system::theme.history', $history);
+    }
+
+    /**
+     * Returns an installed theme's code from it's dirname.
+     * @return string
+     */
+    public function findByDirName($dirName)
+    {
+        $installed = $this->getInstalled();
+        foreach ($installed as $code => $name) {
+            if ($dirName == $name) {
+                return $code;
+            }
+        }
+
+        return null;
+    }
+
+    //
+    // Management
+    //
+
+    /**
+     * Completely delete a theme from the system.
+     * @param string $theme Theme code/namespace
+     * @return void
+     */
+    public function deleteTheme($theme)
+    {
+        if (!$theme) {
+            return false;
+        }
+
+        if (is_string($theme)) {
+            $theme = CmsTheme::load($theme);
+        }
+
+        if ($theme->isActiveTheme()) {
+            throw new ApplicationException(trans('cms::lang.theme.delete_active_theme_failed'));
+        }
+
+        $theme->removeCustomData();
+
+        /*
+         * Delete from file system
+         */
+        $themePath = $theme->getPath();
+        if (File::isDirectory($themePath)) {
+            File::deleteDirectory($themePath);
+        }
+
+        /*
+         * Set uninstalled
+         */
+        if ($themeCode = $this->findByDirName($theme->getDirName())) {
+            $this->setUninstalled($themeCode);
+        }
+    }
+}