refactor: move parseJsonWithSchema to utils package (@fehmer) (monkeytypegame#6109)

Author: fehmer

frontend/src/ts/utils/misc.ts

@@ -7,7 +7,6 @@ import {
   Mode2,
   PersonalBests,
 } from "@monkeytype/contracts/schemas/shared";
-import { ZodError, ZodSchema } from "zod";
 import {
   CustomTextDataWithTextLen,
   Result,
@@ -655,26 +654,6 @@ export function isObject(obj: unknown): obj is Record<string, unknown> {
   return typeof obj === "object" && !Array.isArray(obj) && obj !== null;
 }
 
-/**
- * Parse a JSON string into an object and validate it against a schema
- * @param input  JSON string
- * @param schema  Zod schema to validate the JSON against
- * @returns  The parsed JSON object
- */
-export function parseJsonWithSchema<T>(input: string, schema: ZodSchema<T>): T {
-  try {
-    const jsonParsed = JSON.parse(input) as unknown;
-    const zodParsed = schema.parse(jsonParsed);
-    return zodParsed;
-  } catch (error) {
-    if (error instanceof ZodError) {
-      throw new Error(error.errors.map((err) => err.message).join("\n"));
-    } else {
-      throw error;
-    }
-  }
-}
-
 export function deepClone<T>(obj: T[]): T[];
 export function deepClone<T extends object>(obj: T): T;
 export function deepClone<T>(obj: T): T;

frontend/src/ts/utils/url-handler.ts

@@ -22,6 +22,7 @@ import {
   Difficulty,
 } from "@monkeytype/contracts/schemas/configs";
 import { z } from "zod";
+import { parseWithSchema as parseJsonWithSchema } from "@monkeytype/util/json";
 
 export async function linkDiscord(hashOverride: string): Promise<void> {
   if (!hashOverride) return;
@@ -78,10 +79,7 @@ export function loadCustomThemeFromUrl(getOverride?: string): void {
 
   let decoded: z.infer<typeof customThemeUrlDataSchema>;
   try {
-    decoded = Misc.parseJsonWithSchema(
-      atob(getValue),
-      customThemeUrlDataSchema
-    );
+    decoded = parseJsonWithSchema(atob(getValue), customThemeUrlDataSchema);
   } catch (e) {
     console.log("Custom theme URL decoding failed", e);
     Notifications.add(

packages/funbox/__test__/utils.spec.ts

@@ -0,0 +1,20 @@
+import * as Util from "../src/util";
+
+describe("util", () => {
+  describe("stringToFunboxNames", () => {
+    it("should get single funbox", () => {
+      expect(Util.stringToFunboxNames("58008")).toEqual(["58008"]);
+    });
+    it("should fail for unknown funbox name", () => {
+      expect(() => Util.stringToFunboxNames("unknown")).toThrowError(
+        new Error("Invalid funbox name: unknown")
+      );
+    });
+    it("should split multiple funboxes by hash", () => {
+      expect(Util.stringToFunboxNames("58008#choo_choo")).toEqual([
+        "58008",
+        "choo_choo",
+      ]);
+    });
+  });
+});

packages/util/__test__/json.spec.ts

@@ -0,0 +1,42 @@
+import { parseWithSchema } from "../src/json";
+import { z } from "zod";
+
+describe("json", () => {
+  describe("parseWithSchema", () => {
+    const schema = z.object({
+      test: z.boolean().optional(),
+      name: z.string(),
+      nested: z.object({ foo: z.string() }).strict().optional(),
+    });
+    it("should parse", () => {
+      const json = `{
+        "test":true,
+        "name":"bob",
+        "unknown":"unknown",
+        "nested":{
+            "foo":"bar"
+        }
+      }`;
+
+      expect(parseWithSchema(json, schema)).toStrictEqual({
+        test: true,
+        name: "bob",
+        nested: { foo: "bar" },
+      });
+    });
+    it("should fail with invalid schema", () => {
+      const json = `{
+            "test":"yes",
+            "nested":{
+                "foo":1
+            }
+          }`;
+
+      expect(() => parseWithSchema(json, schema)).toThrowError(
+        new Error(
+          `"test" Expected boolean, received string\n"name" Required\n"nested.foo" Expected string, received number`
+        )
+      );
+    });
+  });
+});

packages/util/package.json

@@ -18,7 +18,8 @@
     "madge": "8.0.0",
     "rimraf": "6.0.1",
     "typescript": "5.5.4",
-    "vitest": "2.0.5"
+    "vitest": "2.0.5",
+    "zod": "3.23.8"
   },
   "exports": {
     ".": {

packages/util/src/json.ts

@@ -0,0 +1,27 @@
+import { ZodError, ZodIssue, ZodSchema } from "zod";
+
+/**
+ * Parse a JSON string into an object and validate it against a schema
+ * @param json  JSON string
+ * @param schema  Zod schema to validate the JSON against
+ * @returns  The parsed JSON object
+ */
+export function parseWithSchema<T>(json: string, schema: ZodSchema<T>): T {
+  try {
+    const jsonParsed = JSON.parse(json) as unknown;
+    const zodParsed = schema.parse(jsonParsed);
+    return zodParsed;
+  } catch (error) {
+    if (error instanceof ZodError) {
+      throw new Error(error.issues.map(prettyErrorMessage).join("\n"));
+    } else {
+      throw error;
+    }
+  }
+}
+
+function prettyErrorMessage(issue: ZodIssue | undefined): string {
+  if (issue === undefined) return "";
+  const path = issue.path.length > 0 ? `"${issue.path.join(".")}" ` : "";
+  return `${path}${issue.message}`;
+}