Feature: Add trip publisher system - create, edit, delete, and publish trips

2025-12-04 16:56:31 +02:00
parent ec563e0376
commit 674af23994
9 changed files with 782 additions and 0 deletions
--- a/src/config/functions.php
+++ b/src/config/functions.php
@@ -2810,3 +2810,95 @@ function url($page) {
    return '/' . $page . '.php';
 }

+/**
+ * Optimize image by resizing if it exceeds max dimensions
+ * 
+ * @param string $filePath Path to the image file
+ * @param int $maxWidth Maximum width in pixels
+ * @param int $maxHeight Maximum height in pixels
+ * @return bool Success status
+ */
+function optimizeImage($filePath, $maxWidth = 1920, $maxHeight = 1080)
+{
+    if (!file_exists($filePath)) {
+        return false;
+    }
+
+    // Get image info
+    $imageInfo = getimagesize($filePath);
+    if (!$imageInfo) {
+        return false;
+    }
+
+    $width = $imageInfo[0];
+    $height = $imageInfo[1];
+    $mime = $imageInfo['mime'];
+
+    // Only resize if image is larger than max dimensions
+    if ($width <= $maxWidth && $height <= $maxHeight) {
+        return true;
+    }
+
+    // Calculate new dimensions maintaining aspect ratio
+    $ratio = min($maxWidth / $width, $maxHeight / $height);
+    $newWidth = (int)($width * $ratio);
+    $newHeight = (int)($height * $ratio);
+
+    // Load image based on type
+    switch ($mime) {
+        case 'image/jpeg':
+            $source = imagecreatefromjpeg($filePath);
+            break;
+        case 'image/png':
+            $source = imagecreatefrompng($filePath);
+            break;
+        case 'image/gif':
+            $source = imagecreatefromgif($filePath);
+            break;
+        case 'image/webp':
+            $source = imagecreatefromwebp($filePath);
+            break;
+        default:
+            return false;
+    }
+
+    if (!$source) {
+        return false;
+    }
+
+    // Create resized image
+    $destination = imagecreatetruecolor($newWidth, $newHeight);
+
+    // Preserve transparency for PNG and GIF
+    if ($mime === 'image/png' || $mime === 'image/gif') {
+        $transparent = imagecolorallocatealpha($destination, 0, 0, 0, 127);
+        imagefill($destination, 0, 0, $transparent);
+        imagesavealpha($destination, true);
+    }
+
+    // Resize
+    imagecopyresampled($destination, $source, 0, 0, 0, 0, $newWidth, $newHeight, $width, $height);
+
+    // Save image
+    $success = false;
+    switch ($mime) {
+        case 'image/jpeg':
+            $success = imagejpeg($destination, $filePath, 85);
+            break;
+        case 'image/png':
+            $success = imagepng($destination, $filePath, 6);
+            break;
+        case 'image/gif':
+            $success = imagegif($destination, $filePath);
+            break;
+        case 'image/webp':
+            $success = imagewebp($destination, $filePath, 85);
+            break;
+    }
+
+    // Free up memory
+    imagedestroy($source);
+    imagedestroy($destination);
+
+    return $success;
+}