import { beforeEach, describe, expect, it } from 'vitest';
import { load } from './+page.server';

beforeEach(() => {
	process.env.AUTH_URL = 'https://example.com/auth';
});

describe('login page load', () => {
	it('returns auth options when local auth is enabled', async () => {
		process.env.LOCAL_AUTH_ENABLED = 'true';
		const result = await load({
			url: new URL('https://example.com/login')
		} as Parameters<typeof load>[0]);

		expect(result.signinUrl).toBe('https://example.com/auth/signin/synology');
		expect(result.localSigninUrl).toBe('https://example.com/auth/callback/local');
		expect(result.callbackUrl).toBe('https://example.com');
		expect(result.localAuthEnabled).toBe(true);
	});

	it('maps credentials errors to a generic message', async () => {
		process.env.LOCAL_AUTH_ENABLED = 'true';
		const result = await load({
			url: new URL('https://example.com/login?error=CredentialsSignin')
		} as Parameters<typeof load>[0]);

		expect(result.error).toBe('Invalid credentials');
	});

	it('disables local auth in the response when disabled', async () => {
		process.env.LOCAL_AUTH_ENABLED = 'false';
		const result = await load({
			url: new URL('https://example.com/login')
		} as Parameters<typeof load>[0]);

		expect(result.localAuthEnabled).toBe(false);
	});
});