import { describe, it, expect } from 'vitest';
import { Hono } from 'hono';

import { reviewsRouter } from '../src/routes/reviews.ts';
import type { CardsDb } from '../src/db/connection.ts';

function buildApp() {
	const stub = {
		select: () => ({
			from: () => ({
				innerJoin: () => ({
					innerJoin: () => ({
						where: () => ({ limit: () => [] }),
					}),
					where: () => ({
						orderBy: () => ({ limit: () => [] }),
					}),
				}),
				where: () => ({
					orderBy: () => ({ limit: () => [] }),
				}),
			}),
		}),
	};
	const app = new Hono();
	app.route('/api/v1/reviews', reviewsRouter({ db: stub as unknown as CardsDb }));
	return { app };
}

describe('reviewsRouter — auth-gate', () => {
	it('GET /due ohne X-User-Id ist 401', async () => {
		const { app } = buildApp();
		const res = await app.request('/api/v1/reviews/due');
		expect(res.status).toBe(401);
	});

	it('POST /grade ohne X-User-Id ist 401', async () => {
		const { app } = buildApp();
		const res = await app.request('/api/v1/reviews/c-1/0/grade', {
			method: 'POST',
			body: JSON.stringify({ rating: 'good' }),
		});
		expect(res.status).toBe(401);
	});
});

describe('reviewsRouter — Input-Validation', () => {
	it('POST mit invalid sub_index ist 422', async () => {
		const { app } = buildApp();
		const res = await app.request('/api/v1/reviews/c-1/-1/grade', {
			method: 'POST',
			headers: { 'X-User-Id': 'u-1', 'Content-Type': 'application/json' },
			body: JSON.stringify({ rating: 'good' }),
		});
		expect(res.status).toBe(422);
	});

	it('POST ohne rating ist 422', async () => {
		const { app } = buildApp();
		const res = await app.request('/api/v1/reviews/c-1/0/grade', {
			method: 'POST',
			headers: { 'X-User-Id': 'u-1', 'Content-Type': 'application/json' },
			body: '{}',
		});
		expect(res.status).toBe(422);
	});

	it('POST mit unknown rating ist 422', async () => {
		const { app } = buildApp();
		const res = await app.request('/api/v1/reviews/c-1/0/grade', {
			method: 'POST',
			headers: { 'X-User-Id': 'u-1', 'Content-Type': 'application/json' },
			body: JSON.stringify({ rating: 'maybe' }),
		});
		expect(res.status).toBe(422);
	});

	it('POST mit gültigem rating erreicht Lookup (404 bei stub)', async () => {
		const { app } = buildApp();
		const res = await app.request('/api/v1/reviews/c-1/0/grade', {
			method: 'POST',
			headers: { 'X-User-Id': 'u-1', 'Content-Type': 'application/json' },
			body: JSON.stringify({ rating: 'good' }),
		});
		expect(res.status).toBe(404);
		const body = (await res.json()) as { error: string };
		expect(body.error).toBe('not_found');
	});
});