/**
 * Pins the `import z from "zod"` convention across this package.
 *
 * Any file that imports zod via the named form
 * (`import { z } from "zod"`) breaks under Bun and is forbidden by
 * memory-rule `feedback_zod_import.md`. This test scans every
 * `src/**` file and fails on any non-default import.
 */

import { readdirSync, readFileSync, statSync } from "node:fs";
import { join } from "node:path";
import { describe, expect, it } from "@suaveplan/testing/runner";

const SRC = join(__dirname, "..", "src");

function walk(dir: string, out: string[] = []): string[] {
    for (const entry of readdirSync(dir)) {
        const full = join(dir, entry);
        const stat = statSync(full);
        if (stat.isDirectory()) {
            walk(full, out);
        } else if (full.endsWith(".ts")) {
            out.push(full);
        }
    }
    return out;
}

describe("zod import form", () => {
    it("every src file uses default-import z", () => {
        const offenders: string[] = [];
        for (const file of walk(SRC)) {
            const text = readFileSync(file, "utf8");
            if (/import\s*\{\s*z[ ,}]/.test(text)) {
                offenders.push(file);
            }
        }
        expect(offenders).toEqual([]);
    }, 5000);
});