import { describe, it, expect } from "vitest";
import * as fs from "node:fs";
import * as path from "node:path";

describe("store file extensions", () => {
  it("test_store_files_use_svelte_ts_extension", () => {
    const storesDir = path.resolve(__dirname);
    const files = fs.readdirSync(storesDir);

    // Find .ts files that are NOT .svelte.ts and NOT test files
    const plainTsFiles = files.filter(
      (f) =>
        f.endsWith(".ts") &&
        !f.endsWith(".svelte.ts") &&
        !f.endsWith(".test.ts")
    );

    for (const file of plainTsFiles) {
      const content = fs.readFileSync(path.join(storesDir, file), "utf-8");
      expect(content).not.toMatch(
        /\$state\s*[<(]/,
        `${file} uses $state() but does not have .svelte.ts extension`
      );
      expect(content).not.toMatch(
        /\$derived\s*[<(]/,
        `${file} uses $derived() but does not have .svelte.ts extension`
      );
      expect(content).not.toMatch(
        /\$effect\s*[<(]/,
        `${file} uses $effect() but does not have .svelte.ts extension`
      );
    }
  });
});