git.m6w6.name Git - m6w6/seekat/blob - lib/API/ContentType/Handler/Json.php

   1 <?php
   2
   3 namespace seekat\API\ContentType\Handler;
   4
   5 use http\Message\Body;
   6 use seekat\API\ContentType\Handler;
   7 use seekat\Exception\InvalidArgumentException;
   8 use seekat\Exception\UnexpectedValueException;
   9 use function seekat\typeof;
  10
  11 final class Json implements Handler {
  12         /**
  13          * @inheritdoc
  14          */
  15         function types() : array {
  16                 return ["json"];
  17         }
  18
  19         /**
  20          * @param int $flags json_encode() flags
  21          */
  22         function __construct(private readonly int $flags = 0) {
  23         }
  24
  25         /**
  26          * @inheritdoc
  27          */
  28         function encode(mixed $data): Body {
  29                 if (is_scalar($data)) {
  30                         $json = $data;
  31                 } else {
  32                         $json = json_encode($data, $this->flags);
  33                 }
  34
  35                 if (false === $json) {
  36                         throw new InvalidArgumentException(
  37                                 "JSON encoding failed for argument ".typeof($data).
  38                                 " \$data; ".json_last_error_msg());
  39                 }
  40                 return (new Body)->append($json);
  41         }
  42
  43         /**
  44          * @inheritdoc
  45          */
  46         function decode(Body $body) : mixed {
  47                 $data = json_decode($body);
  48                 if (!isset($data) && json_last_error()) {
  49                         throw new UnexpectedValueException("Could not decode JSON: ".
  50                                 json_last_error_msg());
  51                 }
  52                 return $data;
  53         }
  54 }