+
+ /**
+ * Returns a string containing an HTML paragraph element with the error code and description
+ *
+ * @param $code int|string The error code.
+ * @param $description string The description of the error.
+ *
+ * @return string A string.
+ */
+ private static function htmlError(int|string $code, string $description):string
+ {
+ return '<p>ERROR: (' . $code . ') ' . $description . '</p>';
+ }
+
+ /**
+ * Returns a JSON string with the error code and description
+ *
+ * @param $code int|string The error code.
+ * @param $description string The description of the error.
+ *
+ * @return bool|string A JSON string
+ */
+ private static function jsonError(int|string $code, string $description):bool|string
+ {
+ return json_encode([
+ 'success' => false,
+ 'errorcode' => $code,
+ 'description' => $description,
+ ], JSON_PRETTY_PRINT);
+ }
+
+ /**
+ * Returns a string that contains the error code and description
+ *
+ * @param $code int|string The error code.
+ * @param $description string The description of the error.
+ *
+ * @return string A string with the error code and description.
+ */
+ private static function textError(int|string $code, string $description):string
+ {
+ return 'ERROR: (' . $code . ') ' . $description;
+ }
+
+ /**
+ * "If the type is csv, then call the csvSuccess function, if the type is html, then call the htmlSuccess function, etc."
+ *
+ * The `match` keyword is a new feature in PHP 8. It's a lot like a switch statement, but it's more powerful
+ *
+ * @param $files array An array of file objects.
+ */
+ public function send(array $files):void
+ {
+ $response = match ($this->type) {
+ 'csv' => $this->csvSuccess($files),
+ 'html' => $this->htmlSuccess($files),
+ 'json' => $this->jsonSuccess($files),
+ 'text' => $this->textSuccess($files),
+ };
+ http_response_code(200); // "200 OK". Success.
+ echo $response;
+ }
+
+ /**
+ * Takes an array of files and returns a CSV string
+ *
+ * @param $files array An array of files that have been uploaded.
+ *
+ * @return string A string of the files in the array.
+ */
+ private static function csvSuccess(array $files):string
+ {
+ $result = '"name","url","hash","size"' . "\r\n";
+ foreach ($files as $file) {
+ $result .= '"' . $file['name'] . '"' . ',' .
+ '"' . $file['url'] . '"' . ',' .
+ '"' . $file['hash'] . '"' . ',' .
+ '"' . $file['size'] . '"' . "\r\n";
+ }
+ return $result;
+ }
+
+ /**
+ * Takes an array of files and returns a string of HTML links
+ *
+ * @param $files array An array of files to be uploaded.
+ *
+ * @return string the result of the foreach loop.
+ */
+ private static function htmlSuccess(array $files):string
+ {
+ $result = '';
+ foreach ($files as $file) {
+ $result .= '<a href="' . $file['url'] . '">' . $file['url'] . '</a><br>';
+ }
+ return $result;
+ }
+
+ /**
+ * Returns a JSON string that contains a success message and the files that were uploaded
+ *
+ * @param $files array The files to be uploaded.
+ *
+ * @return bool|string A JSON string
+ */
+ private static function jsonSuccess(array $files):bool|string
+ {
+ return json_encode([
+ 'success' => true,
+ 'files' => $files,
+ ], JSON_PRETTY_PRINT);
+ }
+
+ /**
+ * Takes an array of files and returns a string of URLs
+ *
+ * @param $files array The files to be uploaded.
+ *
+ * @return string the url of the file.
+ */
+ private static function textSuccess(array $files):string
+ {
+ $result = '';
+ foreach ($files as $file) {
+ $result .= $file['url'] . "\n";
+ }
+ return $result;