From 2d0968a70b78710e854075d96a8e643e2cd2b3a7 Mon Sep 17 00:00:00 2001
From: Shin'ya Ueoka <ueokande@i-beam.org>
Date: Sun, 1 Oct 2017 11:58:34 +0900
Subject: add setting validator

---
 src/shared/validators/setting.js | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 src/shared/validators/setting.js

(limited to 'src/shared/validators')

diff --git a/src/shared/validators/setting.js b/src/shared/validators/setting.js
new file mode 100644
index 0000000..df04e50
--- /dev/null
+++ b/src/shared/validators/setting.js
@@ -0,0 +1,33 @@
+import operations from '../../operations';
+
+const VALID_TOP_KEYS = ['keymaps'];
+const VALID_OPERATION_VALUES = Object.keys(operations).map((key) => {
+  return operations[key];
+});
+
+const validateInvalidTopKeys = (settings) => {
+  let invalidKey = Object.keys(settings).find((key) => {
+    return !VALID_TOP_KEYS.includes(key);
+  });
+  if (invalidKey) {
+    throw Error(`Unknown key: "${invalidKey}"`);
+  }
+};
+
+const validateKeymaps = (keymaps) => {
+  for (let key of Object.keys(keymaps)) {
+    let value = keymaps[key];
+    if (!VALID_OPERATION_VALUES.includes(value.type)) {
+      throw Error(`Unknown operation: "${value.type}"`);
+    }
+  }
+};
+
+const validate = (settings) => {
+  validateInvalidTopKeys(settings);
+  if (settings.keymaps) {
+    validateKeymaps(settings.keymaps);
+  }
+};
+
+export { validate };
-- 
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