feat: Implement white-label branding system with SASS compilation

app/Http/Controllers/DynamicAssetController.php

@@ -0,0 +1,224 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\WhiteLabelConfig;
+use Illuminate\Http\Request;
+use Illuminate\Http\Response;
+use Illuminate\Support\Facades\Cache;
+
+class DynamicAssetController extends Controller
+{
+    /**
+     * Generate dynamic CSS based on the requesting domain.
+     *
+     * This demonstrates how the same endpoint serves different CSS
+     * based on the domain making the request.
+     */
+    public function dynamicCss(Request $request): Response
+    {
+        $domain = $request->getHost();
+        $cacheKey = "dynamic_css:{$domain}";
+
+        // Cache the generated CSS for performance
+        $css = Cache::remember($cacheKey, 3600, function () use ($domain) {
+            return $this->generateCssForDomain($domain);
+        });
+
+        return response($css, 200, [
+            'Content-Type' => 'text/css',
+            'Cache-Control' => 'public, max-age=3600',
+            'X-Generated-For-Domain' => $domain, // Debug header
+        ]);
+    }
+
+    /**
+     * Generate CSS content for a specific domain.
+     */
+    private function generateCssForDomain(string $domain): string
+    {
+        // Find branding config for this domain
+        $branding = WhiteLabelConfig::findByDomain($domain);
+
+        if (! $branding) {
+            return $this->getDefaultCss();
+        }
+
+        // Start with base CSS
+        $css = $this->getBaseCss();
+
+        // Add custom CSS variables
+        $css .= "\n\n/* Custom theme for {$domain} */\n";
+        $css .= $branding->generateCssVariables();
+
+        // Add any custom CSS
+        if ($branding->custom_css) {
+            $css .= "\n\n/* Custom CSS for {$domain} */\n";
+            $css .= $branding->custom_css;
+        }
+
+        return $css;
+    }
+
+    /**
+     * Get the base CSS that's common to all themes.
+     */
+    private function getBaseCss(): string
+    {
+        $baseCssPath = resource_path('css/base-theme.css');
+
+        if (file_exists($baseCssPath)) {
+            return file_get_contents($baseCssPath);
+        }
+
+        // Fallback base CSS if file doesn't exist
+        return $this->getFallbackBaseCss();
+    }
+
+    /**
+     * Get default Coolify CSS.
+     */
+    private function getDefaultCss(): string
+    {
+        $defaultCssPath = public_path('css/app.css');
+
+        if (file_exists($defaultCssPath)) {
+            return file_get_contents($defaultCssPath);
+        }
+
+        return $this->getFallbackBaseCss();
+    }
+
+    /**
+     * Fallback CSS if no files are found.
+     */
+    private function getFallbackBaseCss(): string
+    {
+        return <<<'CSS'
+/* Fallback Base CSS for Dynamic Branding Demo */
+:root {
+  --primary-color: #3b82f6;
+  --secondary-color: #1f2937;
+  --accent-color: #10b981;
+  --background-color: #ffffff;
+  --text-color: #1f2937;
+  --border-color: #e5e7eb;
+}
+
+body {
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+  background-color: var(--background-color);
+  color: var(--text-color);
+  margin: 0;
+  padding: 0;
+}
+
+.navbar {
+  background-color: var(--primary-color);
+  color: white;
+  padding: 1rem;
+  display: flex;
+  align-items: center;
+  gap: 1rem;
+}
+
+.navbar img {
+  height: 40px;
+}
+
+.platform-name {
+  font-size: 1.5rem;
+  font-weight: bold;
+}
+
+.btn-primary {
+  background-color: var(--primary-color);
+  border-color: var(--primary-color);
+  color: white;
+  padding: 0.5rem 1rem;
+  border-radius: 0.375rem;
+  text-decoration: none;
+  display: inline-block;
+}
+
+.btn-primary:hover {
+  opacity: 0.9;
+}
+
+.card {
+  background: white;
+  border: 1px solid var(--border-color);
+  border-radius: 0.5rem;
+  padding: 1.5rem;
+  margin: 1rem;
+  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
+}
+
+.text-primary {
+  color: var(--primary-color);
+}
+
+.text-secondary {
+  color: var(--secondary-color);
+}
+
+.bg-primary {
+  background-color: var(--primary-color);
+}
+
+.border-primary {
+  border-color: var(--primary-color);
+}
+CSS;
+    }
+
+    /**
+     * Serve dynamic favicon based on domain branding.
+     */
+    public function dynamicFavicon(Request $request): Response
+    {
+        $domain = $request->getHost();
+        $branding = WhiteLabelConfig::findByDomain($domain);
+
+        if ($branding && $branding->getLogoUrl()) {
+            // Redirect to custom logo
+            return redirect($branding->getLogoUrl());
+        }
+
+        // Serve default favicon
+        $defaultFavicon = public_path('favicon.ico');
+        if (file_exists($defaultFavicon)) {
+            return response(file_get_contents($defaultFavicon), 200, [
+                'Content-Type' => 'image/x-icon',
+                'Cache-Control' => 'public, max-age=86400',
+            ]);
+        }
+
+        return response('', 404);
+    }
+
+    /**
+     * Debug endpoint to show how domain detection works.
+     */
+    public function debugBranding(Request $request): array
+    {
+        $domain = $request->getHost();
+        $branding = WhiteLabelConfig::findByDomain($domain);
+
+        return [
+            'domain' => $domain,
+            'has_custom_branding' => $branding !== null,
+            'platform_name' => $branding?->getPlatformName() ?? 'Coolify (Default)',
+            'custom_logo' => $branding?->getLogoUrl(),
+            'theme_variables' => $branding?->getThemeVariables() ?? WhiteLabelConfig::createDefault('')->getDefaultThemeVariables(),
+            'custom_domains' => $branding?->getCustomDomains() ?? [],
+            'hide_coolify_branding' => $branding?->shouldHideCoolifyBranding() ?? false,
+            'organization_id' => $branding?->organization_id,
+            'request_headers' => [
+                'host' => $request->header('host'),
+                'user_agent' => $request->header('user-agent'),
+                'x_forwarded_host' => $request->header('x-forwarded-host'),
+            ],
+        ];
+    }
+}