<?php


namespace app\widgets\services;


class Image
{
    public function crateThumb($media_key, $object_key, $file_name, $file_type, $temp)
    {
        $file_dest = $this->getFileDest($media_key, $object_key, $file_name, 'thumb');
        $this->scaleImage($temp, $file_type, $file_dest, 0.3, 50);
    }

    public function createCrop($crop, $file, $media_key, $object_key)
    {
        $file_dest = $this->getFileDest($media_key, $object_key, $file['name'], $crop);
        $this->scaleImage($file['tmp_name'], $file['type'], $file_dest, 0.7, 55);
    }

    private function getFileDest($media_key, $object_key, $file_name, $last_dir)
    {
        $dir_ready = $_SERVER['DOCUMENT_ROOT'] . '/_files/ready';
        $dir_media = $_SERVER['DOCUMENT_ROOT'] . '/_files/ready/' . $media_key;
        $dir_object = $_SERVER['DOCUMENT_ROOT'] . '/_files/ready/' . $media_key . '/' . $object_key;
        $dir_last = "$dir_object/$last_dir";
        $file_dest = "$dir_last/$file_name";
        if (!file_exists($dir_ready))
            mkdir($dir_ready, 0777);
        if (!file_exists($dir_media))
            mkdir($dir_media, 0777);
        if (!file_exists($dir_object))
            mkdir($dir_object, 0777);
        if (!file_exists($dir_last))
            mkdir($dir_last, 0777);
        return $file_dest;
    }


    private function cropImage($file, $file_type, $destination, $thumb_width = 0, $thumb_height = 0, $quality = 100)
    {
        switch ($file_type) {
            case 'image/jpg':
            case 'image/jpeg':
                $image = imagecreatefromjpeg($file);
                break;
            case 'image/png':
                $image = imagecreatefrompng($file);
                $quality = 9;
                break;
            default:
                echo json_encode(['error', 'Unsupported file format: ' . $file_type]);
                exit;
        }

        $width = imagesx($image);
        $height = imagesy($image);
        $original_aspect = $width / $height;
        $thumb_aspect = $thumb_width / $thumb_height;
        if ($original_aspect >= $thumb_aspect) {
            $new_height = $thumb_height;
            $new_width = $width / ($height / $thumb_height);
        } else {
            $new_width = $thumb_width;
            $new_height = $height / ($width / $thumb_width);
        }
        $thumb = imagecreatetruecolor($thumb_width, $thumb_height);
        imagecopyresampled($thumb,
            $image,
            0 - ($new_width - $thumb_width) / 2,
            0 - ($new_height - $thumb_height) / 2,
            0, 0,
            $new_width, $new_height,
            $width, $height);
        if ($file_type == 'image/png') {
            imagealphablending($thumb, false);
            imagesavealpha($thumb, true);
            imagepng($thumb, $destination, $quality);
        } else {
            imagejpeg($thumb, $destination, $quality);
        }
    }

    private function scaleImage($file, $file_type, $destination, $scale, $quality)
    {
        switch ($file_type) {
            case 'image/jpg':
            case 'image/jpeg':
                $image = imagecreatefromjpeg($file);
                break;
            case 'image/png':
                $image = imagecreatefrompng($file);
                $quality = 9;
                break;
            default:
                echo json_encode(['error', 'Unsupported file format: ' . $file_type]);
                exit;
        }

        list($width, $height) = getimagesize($file);
        $scaledImage = imagescale($image, ($width * $scale), ($height * $scale));
        if ($file_type == 'image/png') {
            imagealphablending($scaledImage, false);
            imagesavealpha($scaledImage, true);
            imagepng($scaledImage, $destination, $quality);
        } else {
            imagejpeg($scaledImage, $destination, $quality);
        }
    }
}