fixing the typecheck fail when running convex dev for the first time

convex/README.md

@@ -0,0 +1,90 @@
+# Welcome to your Convex functions directory!
+
+Write your Convex functions here.
+See https://docs.convex.dev/functions for more.
+
+A query function that takes two arguments looks like:
+
+```ts
+// convex/myFunctions.ts
+import { query } from "./_generated/server";
+import { v } from "convex/values";
+
+export const myQueryFunction = query({
+  // Validators for arguments.
+  args: {
+    first: v.number(),
+    second: v.string(),
+  },
+
+  // Function implementation.
+  handler: async (ctx, args) => {
+    // Read the database as many times as you need here.
+    // See https://docs.convex.dev/database/reading-data.
+    const documents = await ctx.db.query("tablename").collect();
+
+    // Arguments passed from the client are properties of the args object.
+    console.log(args.first, args.second);
+
+    // Write arbitrary JavaScript here: filter, aggregate, build derived data,
+    // remove non-public properties, or create new objects.
+    return documents;
+  },
+});
+```
+
+Using this query function in a React component looks like:
+
+```ts
+const data = useQuery(api.myFunctions.myQueryFunction, {
+  first: 10,
+  second: "hello",
+});
+```
+
+A mutation function looks like:
+
+```ts
+// convex/myFunctions.ts
+import { mutation } from "./_generated/server";
+import { v } from "convex/values";
+
+export const myMutationFunction = mutation({
+  // Validators for arguments.
+  args: {
+    first: v.string(),
+    second: v.string(),
+  },
+
+  // Function implementation.
+  handler: async (ctx, args) => {
+    // Insert or modify documents in the database here.
+    // Mutations can also read from the database like queries.
+    // See https://docs.convex.dev/database/writing-data.
+    const message = { body: args.first, author: args.second };
+    const id = await ctx.db.insert("messages", message);
+
+    // Optionally, return a value from your mutation.
+    return await ctx.db.get("messages", id);
+  },
+});
+```
+
+Using this mutation function in a React component looks like:
+
+```ts
+const mutation = useMutation(api.myFunctions.myMutationFunction);
+function handleButtonPress() {
+  // fire and forget, the most common way to use mutations
+  mutation({ first: "Hello!", second: "me" });
+  // OR
+  // use the result once the mutation has completed
+  mutation({ first: "Hello!", second: "me" }).then((result) =>
+    console.log(result),
+  );
+}
+```
+
+Use the Convex CLI to push your functions to a deployment. See everything
+the Convex CLI can do by running `npx convex -h` in your project root
+directory. To learn more, launch the docs with `npx convex docs`.

convex/githubImport.ts

@@ -85,7 +85,8 @@ export const previewGitHubImportCandidate = action({
       defaultSelectedPaths,
     })
 
-    const baseForNaming = candidate.path ? (candidate.path.split('/').at(-1) ?? '') : resolved.repo
+    const pathParts = candidate.path ? candidate.path.split('/') : []
+    const baseForNaming = candidate.path ? (pathParts[pathParts.length - 1] ?? '') : resolved.repo
     const suggestedDisplayName = suggestDisplayName(candidate, baseForNaming)
 
     const rawSlugBase = sanitizeSlug(candidate.path ? baseForNaming : resolved.repo)

convex/lib/githubImport.ts

@@ -141,7 +141,8 @@ async function resolveHeadCommit(parsed: GitHubImportUrl, fetcher: typeof fetch)
     url = next.toString()
   }
 
-  const maybe = url.split('/').at(-1) ?? ''
+  const urlParts = url.split('/')
+  const maybe = urlParts[urlParts.length - 1] ?? ''
   if (!/^[a-f0-9]{40}$/i.test(maybe)) {
     throw new Error('Could not resolve commit for HEAD')
   }
@@ -363,7 +364,8 @@ function isUnderRoot(path: string, rootWithSlash: string) {
 
 function isTextPath(path: string) {
   const lower = path.toLowerCase()
-  const ext = lower.split('.').at(-1) ?? ''
+  const extParts = lower.split('.')
+  const ext = extParts[extParts.length - 1] ?? ''
   if (!ext) return false
   return TEXT_FILE_EXTENSION_SET.has(ext)
 }

convex/lib/skills.ts

@@ -127,7 +127,7 @@ export function isTextFile(path: string, contentType?: string | null) {
   const trimmed = path.trim().toLowerCase()
   if (!trimmed) return false
   const parts = trimmed.split('.')
-  const extension = parts.length > 1 ? (parts.at(-1) ?? '') : ''
+  const extension = parts.length > 1 ? (parts[parts.length - 1] ?? '') : ''
   if (contentType) {
     if (isTextContentType(contentType)) return true
   }

convex/tsconfig.json

@@ -1,7 +1,25 @@
 {
-  "extends": "../tsconfig.json",
+  /* This TypeScript project config describes the environment that
+   * Convex functions run in and is used to typecheck them.
+   * You can modify it, but some settings are required to use Convex.
+   */
   "compilerOptions": {
+    /* These settings are not required by Convex and can be modified. */
+    "allowJs": true,
+    "strict": true,
     "moduleResolution": "Bundler",
-    "skipLibCheck": true
-  }
+    "jsx": "react-jsx",
+    "skipLibCheck": true,
+    "allowSyntheticDefaultImports": true,
+
+    /* These compiler options are required by Convex */
+    "target": "ESNext",
+    "lib": ["ES2021", "dom"],
+    "forceConsistentCasingInFileNames": true,
+    "module": "ESNext",
+    "isolatedModules": true,
+    "noEmit": true
+  },
+  "include": ["./**/*"],
+  "exclude": ["./_generated"]
 }