// @vitest-environment jsdom
import {afterEach, beforeEach, describe, expect, it, vi} from 'vitest';
import {cleanup, fireEvent, screen, waitFor} from '@testing-library/react';
import {toast} from 'sonner';
import SettingsPage from './SettingsPage.jsx';
import {fetchRoutes, json} from '../test/fetchRoutes.js';
import {renderWithProviders} from '../test/renderWithProviders.jsx';

vi.mock('react-i18next', async () => {
    const mock = await import('../test/i18n-mock.js');
    const i18n = {language: 'de', changeLanguage: vi.fn()};
    return {...mock, useTranslation: () => ({t: mock.useTranslation().t, i18n})};
});
vi.mock('sonner', () => ({toast: {success: vi.fn(), error: vi.fn(), info: vi.fn()}}));

const STEAM_URL = 'https://steamcommunity.com/openid/login?openid.mode=checkid_setup';

const profile = (overrides = {}) => ({
    id: 1, email: 'a@b.de', role: 'USER', displayName: 'Lobo', steamId: '76561198005679788', steamIdVerified: false,
    settings: {useDarkTheme: true, language: 'de', publicProfile: false}, ...overrides,
});

const calls = (method) => fetch.mock.calls.filter(([, init]) => init?.method === method);

const noBody = {ok: true, status: 204, json: async () => { throw new SyntaxError('no body'); }};

function renderPage(me, {redirectUrl = STEAM_URL, entry = '/settings'} = {}) {
    fetchRoutes({
        'GET /api/users/me': json(200, me),
        'POST /api/users/steam-link': json(200, {redirectUrl}),
        'DELETE /api/users/steam-link': noBody,
        'PUT /api/users/settings': noBody,
        'POST /api/auth/refresh': noBody,
        'GET /api/version': json(404, {}),
        'GET /api/follows': json(200, {following: [], followers: []}),
        'GET /api/library/psn-account': json(200, {enabled: false, linked: false}),
    });
    renderWithProviders(<SettingsPage/>, {path: '/settings', entries: [entry]});
}

describe('SettingsPage Steam account', () => {
    const assign = vi.fn();
    const realLocation = window.location;

    beforeEach(() => {
        localStorage.setItem('tbp_session', '1');
        Object.defineProperty(window, 'location', {configurable: true, value: {...realLocation, assign}});
    });

    afterEach(() => {
        cleanup();
        localStorage.clear();
        vi.clearAllMocks();
        Object.defineProperty(window, 'location', {configurable: true, value: realLocation});
    });

    it('shows a typed-in ID as not verified and sends the user to Steam to verify it', async () => {
        renderPage(profile());

        expect(await screen.findByText('SETTINGS.STEAM_LINK.NOT_VERIFIED')).toBeTruthy();
        fireEvent.click(screen.getByRole('button', {name: /SETTINGS.STEAM_LINK.VERIFY/}));

        await waitFor(() => expect(assign).toHaveBeenCalledWith(STEAM_URL));
        expect(calls('POST').map(([url]) => url).some((url) => url.endsWith('/api/users/steam-link'))).toBe(true);
    });

    it('does not follow a link that is not Steam', async () => {
        renderPage(profile({steamId: null}), {redirectUrl: 'https://evil.example/openid/login?x'});

        fireEvent.click(await screen.findByRole('button', {name: /SETTINGS.STEAM_LINK.LINK/}));

        await waitFor(() => expect(toast.error).toHaveBeenCalledWith('SETTINGS.STEAM_LINK.ERROR'));
        expect(assign).not.toHaveBeenCalled();
    });

    it('shows a verified ID with the option to link another account', async () => {
        renderPage(profile({steamIdVerified: true}));

        expect(await screen.findByText('SETTINGS.STEAM_LINK.VERIFIED')).toBeTruthy();
        expect(screen.getByRole('button', {name: /SETTINGS.STEAM_LINK.CHANGE/})).toBeTruthy();
    });

    it('back from Steam: refreshes the session so Core gets the new Steam ID, and says so', async () => {
        renderPage(profile({steamIdVerified: true}), {entry: '/settings?steam=linked'});

        await screen.findByText('SETTINGS.STEAM_LINK.VERIFIED');
        expect(calls('POST').some(([url]) => url.endsWith('/api/auth/refresh'))).toBe(true);
        expect(toast.success).toHaveBeenCalledWith('SETTINGS.STEAM_LINK.LINKED');
    });

    it.each([['in-use', 'error', 'SETTINGS.STEAM_LINK.IN_USE'], ['failed', 'error', 'SETTINGS.STEAM_LINK.FAILED'],
        ['cancelled', 'info', 'SETTINGS.STEAM_LINK.CANCELLED']])('back from Steam with %s', async (outcome, kind, key) => {
        renderPage(profile(), {entry: `/settings?steam=${outcome}`});

        await screen.findByText('SETTINGS.STEAM_LINK.NOT_VERIFIED');
        expect(toast[kind]).toHaveBeenCalledWith(key);
        expect(calls('POST').some(([url]) => url.endsWith('/api/auth/refresh'))).toBe(false);
    });

    it('unlinks the Steam account', async () => {
        renderPage(profile({steamIdVerified: true}));

        fireEvent.click(await screen.findByRole('button', {name: /SETTINGS.STEAM_LINK.UNLINK/}));

        expect(await screen.findByText('SETTINGS.STEAM_LINK.NONE')).toBeTruthy();
        expect(calls('DELETE')[0][0]).toMatch(/\/api\/users\/steam-link$/);
    });

    it('never sends a Steam ID with the settings', async () => {
        renderPage(profile());

        fireEvent.click(await screen.findByRole('switch', {name: 'SETTINGS.DARK_THEME'}));

        await waitFor(() => expect(calls('PUT')).toHaveLength(1));
        expect(JSON.parse(calls('PUT')[0][1].body)).not.toHaveProperty('steamId');
    });
});