1 files changed, 67 insertions, 0 deletions
diff --git a/src/Support/RequestValidator.php b/src/Support/RequestValidator.php
new file mode 100644
index 0000000..40ede8b
--- /dev/null
+++ b/src/Support/RequestValidator.php
@@ -0,0 +1,67 @@
+<?php
+
+namespace App\Support;
+
+use App\Errors\AppException;
+use App\Errors\ErrorCode;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+
+class RequestValidator
+{
+  private array $requestBody;
+  private array $requestQuery;
+
+  public function __construct(private Request $request)
+  {
+    $this->requestBody = json_decode($request->getContent(), true);
+    self::validateJson();
+
+    $this->requestQuery = $request->query->all();
+  }
+
+  /**
+   * types are validated with gettype
+   * @see gettype
+   *
+   * @param array<mixed,mixed> $schemaRequired
+   * @param array<mixed,mixed> $schemaOptional
+   */
+  public function validateBody(array $schemaRequired, array $schemaOptional = []): void
+  {
+    throw new AppException(
+      ErrorCode::BAD_JSON,
+      "Request body is missing required values",
+      Response::HTTP_UNPROCESSABLE_ENTITY,
+    );
+  }
+
+  /**
+   * types are validated with gettype
+   * @see gettype
+   *
+   * @param array<mixed,mixed> $schemaRequired
+   * @param array<mixed,mixed> $schemaOptional
+   */
+  public function validateQuery(array $schemaRequired, array $schemaOptional = []): void
+  {
+    throw new AppException(
+      ErrorCode::BAD_JSON,
+      "Request query is missing required values",
+      Response::HTTP_UNPROCESSABLE_ENTITY,
+    );
+  }
+
+  private function traverseRecursive(): void {}
+
+  public static function validateJson(): void
+  {
+    if (json_last_error() !== JSON_ERROR_NONE) {
+      throw new AppException(
+        ErrorCode::NOT_JSON,
+        "Request did not contain valid JSON",
+        Response::HTTP_BAD_REQUEST,
+      );
+    }
+  }
+}