From d53d45f797946ced21f6eaeee0fa4c713b19f782 Mon Sep 17 00:00:00 2001
From: syuilo <syuilotan@yahoo.co.jp>
Date: Thu, 5 Jul 2018 22:35:35 +0900
Subject: wip

---
 src/server/api/get-params.ts | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 src/server/api/get-params.ts

(limited to 'src/server/api/get-params.ts')

diff --git a/src/server/api/get-params.ts b/src/server/api/get-params.ts
new file mode 100644
index 0000000000..6b047a28f4
--- /dev/null
+++ b/src/server/api/get-params.ts
@@ -0,0 +1,30 @@
+import { Query } from 'cafy';
+
+type Defs = {
+	params: {[key: string]: {
+		def: Query<any>;
+		default?: any;
+	}}
+};
+
+export default function <T extends Defs>(defs: T, params: any): [{
+	[P in keyof T['params']]: ReturnType<T['params'][P]['def']['get']>[0];
+}, Error] {
+	const x: any = {};
+	let err: Error = null;
+	Object.keys(defs.params).some(k => {
+		const [v, e] = defs.params[k].def.get(params[k]);
+		if (e) {
+			err = e;
+			return true;
+		} else {
+			if (v === undefined && defs.params[k].default) {
+				x[k] = defs.params[k].default;
+			} else {
+				x[k] = v;
+			}
+			return false;
+		}
+	});
+	return [x, err];
+}
-- 
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