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<?php require_once __DIR__ . '/../config/config.php'; /** * Process uploaded image: resize max 1200px, compress JPEG 80% / WebP, and create thumbnail * Uses PHP GD Library / function processAndUploadImage($file, $subDir = 'products') { if (!isset($file['tmp_name']) \|\| empty($file['tmp_name']) \|\| $file['error'] !== UPLOAD_ERR_OK) { return ['success' => false, 'error' => 'ไม่มีไฟล์อัปโหลดหรือเกิดข้อผิดพลาด']; } $allowedMimes = ['image/jpeg', 'image/png', 'image/webp']; $fileMime = mime_content_type($file['tmp_name']); if (!in_array($fileMime, $allowedMimes)) { return ['success' => false, 'error' => 'อนุญาตเฉพาะไฟล์รูปภาพ (JPG, PNG, WebP) เท่านั้น']; } // Check size limit (max 10MB input) if ($file['size'] > 10 1024 * 1024) { return ['success' => false, 'error' => 'ขนาดไฟล์เกิน 10MB']; } $targetDir = UPLOAD_DIR . $subDir . '/'; $thumbDir = UPLOAD_DIR . $subDir . '/thumbs/'; if (!file_exists($targetDir)) { mkdir($targetDir, 0777, true); } if (!file_exists($thumbDir)) { mkdir($thumbDir, 0777, true); } // Check if GD extension & required functions are available $hasGD = extension_loaded('gd') && function_exists('imagecreatefromjpeg') && function_exists('imagecreatetruecolor'); if (!$hasGD) { // Fallback: Upload file directly via move_uploaded_file without GD processing $ext = strtolower(pathinfo($file['name'], PATHINFO_EXTENSION)); if (empty($ext)) { $ext = ($fileMime === 'image/png') ? 'png' : (($fileMime === 'image/webp') ? 'webp' : 'jpg'); } $filename = uniqid('img_', true) . '.' . $ext; $mainPath = $targetDir . $filename; $thumbPath = $thumbDir . 'thumb_' . $filename; if (move_uploaded_file($file['tmp_name'], $mainPath)) { copy($mainPath, $thumbPath); $sizeKb = round($file['size'] / 1024, 1); return [ 'success' => true, 'main_path' => $subDir . '/' . $filename, 'thumb_path' => $subDir . '/thumbs/thumb_' . $filename, 'orig_size_kb' => $sizeKb, 'comp_size_kb' => $sizeKb ]; } else { return ['success' => false, 'error' => 'ไม่สามารถย้ายไฟล์อัปโหลดไปยังโฟลเดอร์ปลายทางได้']; } } // Process via GD Library switch ($fileMime) { case 'image/jpeg': $srcImage = @imagecreatefromjpeg($file['tmp_name']); break; case 'image/png': $srcImage = @imagecreatefrompng($file['tmp_name']); break; case 'image/webp': $srcImage = function_exists('imagecreatefromwebp') ? @imagecreatefromwebp($file['tmp_name']) : false; break; default: $srcImage = false; } if (!$srcImage) { // Fallback if GD fails to parse image resource $ext = strtolower(pathinfo($file['name'], PATHINFO_EXTENSION)); if (empty($ext)) $ext = 'jpg'; $filename = uniqid('img_', true) . '.' . $ext; $mainPath = $targetDir . $filename; $thumbPath = $thumbDir . 'thumb_' . $filename; if (move_uploaded_file($file['tmp_name'], $mainPath)) { copy($mainPath, $thumbPath); $sizeKb = round($file['size'] / 1024, 1); return [ 'success' => true, 'main_path' => $subDir . '/' . $filename, 'thumb_path' => $subDir . '/thumbs/thumb_' . $filename, 'orig_size_kb' => $sizeKb, 'comp_size_kb' => $sizeKb ]; } return ['success' => false, 'error' => 'ไม่สามารถประมวลผลไฟล์รูปภาพด้วย GD Library ได้']; } $origWidth = imagesx($srcImage); $origHeight = imagesy($srcImage); // 1. Resize Main Image if width > MAX_IMAGE_WIDTH (1200px) if ($origWidth > MAX_IMAGE_WIDTH) { $newWidth = MAX_IMAGE_WIDTH; $newHeight = (int)($origHeight * ($newWidth / $origWidth)); } else { $newWidth = $origWidth; $newHeight = $origHeight; } $mainResized = imagecreatetruecolor($newWidth, $newHeight); imagealphablending($mainResized, false); imagesavealpha($mainResized, true); imagecopyresampled($mainResized, $srcImage, 0, 0, 0, 0, $newWidth, $newHeight, $origWidth, $origHeight); $filename = uniqid('img_', true) . '.webp'; $mainPath = $targetDir . $filename; $saveMainSuccess = false; if (function_exists('imagewebp')) { $saveMainSuccess = imagewebp($mainResized, $mainPath, JPEG_QUALITY); } else { $filename = uniqid('img_', true) . '.jpg'; $mainPath = $targetDir . $filename; $saveMainSuccess = imagejpeg($mainResized, $mainPath, JPEG_QUALITY); } imagedestroy($mainResized); if (!$saveMainSuccess) { error_log("[Image Upload] Failed to save main image to path: " . $mainPath); return ['success' => false, 'error' => 'เซิร์ฟเวอร์ไม่สามารถบันทึกไฟล์รูปภาพหลักได้ (Check Permissions)']; } // 2. Create Thumbnail $thumbWidth = THUMB_WIDTH; $thumbHeight = (int)($origHeight * ($thumbWidth / $origWidth)); $thumbResized = imagecreatetruecolor($thumbWidth, $thumbHeight); imagealphablending($thumbResized, false); imagesavealpha($thumbResized, true); imagecopyresampled($thumbResized, $srcImage, 0, 0, 0, 0, $thumbWidth, $thumbHeight, $origWidth, $origHeight); $thumbFilename = 'thumb_' . $filename; $thumbPath = $thumbDir . $thumbFilename; $saveThumbSuccess = false; if (function_exists('imagewebp')) { $saveThumbSuccess = imagewebp($thumbResized, $thumbPath, JPEG_QUALITY); } else { $saveThumbSuccess = imagejpeg($thumbResized, $thumbPath, JPEG_QUALITY); } imagedestroy($thumbResized); imagedestroy($srcImage); if (!$saveThumbSuccess) { error_log("[Image Upload] Failed to save thumbnail image to path: " . $thumbPath); // We can still return success for main image, but log the error for thumbnail } $originalSizeKb = round($file['size'] / 1024, 1); $compressedSizeKb = file_exists($mainPath) ? round(filesize($mainPath) / 1024, 1) : $originalSizeKb; return [ 'success' => true, 'main_path' => $subDir . '/' . $filename, 'thumb_path' => $subDir . '/thumbs/' . $thumbFilename, 'orig_size_kb' => $originalSizeKb, 'comp_size_kb' => $compressedSizeKb ]; } /** * Format image URL with full path and fallback image support * Supports checking file existence on disk, case sensitivity, relative paths, etc. */ function formatImageUrl($imagePath) { if (empty($imagePath) \|\| !is_string($imagePath)) { return SITE_URL . '/assets/images/no-image.png'; } $trimmed = trim($imagePath); if ($trimmed === '' \|\| $trimmed === 'null' \|\| $trimmed === 'undefined') { return SITE_URL . '/assets/images/no-image.png'; } // External URL if (preg_match('/^https?:\/\//i', $trimmed)) { return $trimmed; } // Strip SITE_URL if already present to work with local path if (strpos($trimmed, SITE_URL) === 0) { $trimmed = substr($trimmed, strlen(SITE_URL)); } $trimmed = ltrim($trimmed, '/'); $publicDir = realpath(__DIR__ . '/../public'); if (!$publicDir) { $publicDir = __DIR__ . '/../public'; } // Candidate relative paths on disk $candidates = [ $trimmed, 'uploads/' . $trimmed, 'uploads/products/' . $trimmed, 'uploads/stores/' . $trimmed, 'uploads/vendors/' . $trimmed, 'assets/images/' . $trimmed, 'assets/' . $trimmed ]; // Also try basename only in case $trimmed has redundant folder prefixes $baseName = basename($trimmed); if ($baseName !== $trimmed) { $candidates[] = 'uploads/products/' . $baseName; $candidates[] = 'uploads/' . $baseName; } foreach ($candidates as $relPath) { $cleanRel = ltrim($relPath, '/'); $fullPath = $publicDir . DIRECTORY_SEPARATOR . str_replace(['/', '\\'], DIRECTORY_SEPARATOR, $cleanRel); // 1. Direct file_exists check if (file_exists($fullPath) && is_file($fullPath)) { return SITE_URL . '/' . $cleanRel; } // 2. Case-insensitive check on Linux (checking actual files in directory) $dir = dirname($fullPath); $file = basename($fullPath); if (is_dir($dir)) { $filesInDir = @scandir($dir); if ($filesInDir) { $lowerFile = strtolower($file); foreach ($filesInDir as $f) { if ($f === '.' \|\| $f === '..') continue; if (strtolower($f) === $lowerFile) { $matchedRel = dirname($cleanRel) === '.' ? $f : dirname($cleanRel) . '/' . $f; return SITE_URL . '/' . ltrim($matchedRel, '/'); } } } } } // Fallback if not found on disk: if it explicitly starts with uploads/ or assets/ if (strpos($trimmed, 'uploads/') === 0 \|\| strpos($trimmed, 'assets/') === 0) { return SITE_URL . '/' . $trimmed; } // If filename given without path, default to uploads/products/ if (!empty($trimmed)) { return SITE_URL . '/uploads/products/' . $trimmed; } return SITE_URL . '/assets/images/no-image.png'; }

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