CODEBASE: Validate theme, editor theme, and styles (#1789)

src/JsonSchema/JSONSchemaAssertion.ts

@@ -0,0 +1,34 @@
+import type { ValidateFunction } from "ajv/dist/types";
+import type { IStyleSettings } from "../ScriptEditor/NetscriptDefinitions";
+import type { IScriptEditorTheme } from "../ScriptEditor/ui/themes";
+import type { ITheme } from "../Themes/Themes";
+import { JsonSchemaValidator } from "./JsonSchemaValidator";
+
+function assertAndSanitize(data: unknown, validate: ValidateFunction<unknown>): void {
+  if (!validate(data)) {
+    console.error("validate.errors:", validate.errors);
+    // validate.errors is an array of objects, so we need to use JSON.stringify.
+    throw new Error(JSON.stringify(validate.errors));
+  }
+}
+
+/**
+ * This function validates the unknown data and removes properties not defined in MainThemeSchema.
+ */
+export function assertAndSanitizeMainTheme(data: unknown): asserts data is ITheme {
+  assertAndSanitize(data, JsonSchemaValidator.MainTheme);
+}
+
+/**
+ * This function validates the unknown data and removes properties not defined in EditorThemeSchema.
+ */
+export function assertAndSanitizeEditorTheme(data: unknown): asserts data is IScriptEditorTheme {
+  assertAndSanitize(data, JsonSchemaValidator.EditorTheme);
+}
+
+/**
+ * This function validates the unknown data and removes properties not defined in StylesSchema.
+ */
+export function assertAndSanitizeStyles(data: unknown): asserts data is IStyleSettings {
+  assertAndSanitize(data, JsonSchemaValidator.Styles);
+}