import { describe, expect, it } from "vitest";
import { loadFactory } from "../src/loader.ts";
import type { MountContext } from "../src/types.ts";

describe("native runtime source loading", () => {
	it("loads TypeScript with native TUI imports without generated files or reload", async () => {
		const factory = await loadFactory(
			'import { Text } from "@earendil-works/pi-tui"; export default function mount(_ctx: unknown) { return new Text("native", 0, 0); }',
		);
		const component = await factory({} as MountContext);
		expect(component.render(20).map((line) => line.trimEnd())).toEqual([
			"native",
		]);
	});
	it("evaluates successive revisions without stale module cache", async () => {
		const first = await loadFactory(
			'export default () => ({render: () => ["one"], invalidate() {}})',
		);
		const second = await loadFactory(
			'export default () => ({render: () => ["two"], invalidate() {}})',
		);
		expect((await first({} as MountContext)).render(20)).toEqual(["one"]);
		expect((await second({} as MountContext)).render(20)).toEqual(["two"]);
	});
	it("rejects malformed source and missing factory", async () => {
		await expect(loadFactory("export default function (")).rejects.toThrow();
		await expect(loadFactory("export const other = 1")).rejects.toThrow(
			"default component factory",
		);
	});
});