adding auto updating schema checker

Author: sachin-panayil

src/scripts/generate-schema.ts

@@ -2,9 +2,9 @@ import fs from "fs";
 import path from "path";
 import prettier from "prettier";
 import { JsonSchema, jsonSchemaToZod } from "json-schema-to-zod";
+import { getLatestSchemaVersion } from "./get-latest-schema.js";
 
-const schemaVersion = "2.0.0";
-const schemaURL = `https://raw.githubusercontent.com/DSACMS/gov-codejson/refs/heads/main/schemas/cms/schema-${schemaVersion}.json`;
+const SCHEMA_BASE_URL = "https://raw.githubusercontent.com/DSACMS/gov-codejson/refs/heads/main/schemas/cms";
 const filePath = "src/types/CodeJSONSchema.ts";
 
 function allowEmptyUrls(zodCode: string): string {
@@ -63,6 +63,10 @@ async function formatFile(filePath: string) {
 }
 
 async function generateSchema() {
+    const schemaVersion = await getLatestSchemaVersion();
+    console.log(`Latest schema version: ${schemaVersion}`);
+
+    const schemaURL = `${SCHEMA_BASE_URL}/schema-${schemaVersion}.json`;
     console.log(`Fetching JSON schema from GitHub...`);
     const response = await fetch(schemaURL);
 
@@ -80,6 +84,7 @@ async function generateSchema() {
 
     const fileContent = `
         // DO NOT EDIT - AUTOMATICALLY GENERATED FILE!!!
+        // Schema Version: ${schemaVersion}
 
         import { z } from "zod";
 

src/scripts/get-latest-schema.ts

@@ -0,0 +1,44 @@
+const GITHUB_API_URL =
+  "https://api.github.com/repos/DSACMS/gov-codejson/contents/schemas/cms";
+
+export async function getLatestSchemaVersion(): Promise<string> {
+  const response = await fetch(GITHUB_API_URL, {
+    headers: {
+      Accept: "application/vnd.github.v3+json",
+      ...(process.env.GITHUB_TOKEN && {
+        Authorization: `Bearer ${process.env.GITHUB_TOKEN}`,
+      }),
+    },
+  });
+
+  if (!response.ok) {
+    throw new Error(`Failed to fetch schema list: ${response.status}`);
+  }
+
+  const files = (await response.json()) as Array<{ name: string }>;
+
+  const versions = files
+    .map((f) => f.name.match(/^schema-(\d+\.\d+\.\d+)\.json$/)?.[1])
+    .filter(Boolean) as string[];
+
+  if (versions.length === 0) {
+    throw new Error("No schema versions found");
+  }
+
+  const versionNumber = versions.sort((a, b) => b.localeCompare(a, undefined, { numeric: true }))[0];
+// console.log(versionNumber)
+  return versionNumber
+}
+
+// try {
+//     await getLatestSchemaVersion();
+// } catch (error) {
+//     console.error(`GET operation failed!`);
+    
+//     if (error instanceof Error) {
+//         console.error(`Error: ${error.message}`);
+//     } else {
+//         console.error(`Unknown error:`, error);
+//     }
+//     process.exit(1);
+// }