// Auth gating for the book tracker: files, reader, progress and notes are owner-only and
// answer 404 to everyone else; the public pages never leak files or notes.
import { beforeEach, describe, expect, it, vi } from 'vitest';
import { isHttpError } from '@sveltejs/kit';

vi.mock('#lib/server/db/index.js', () => ({ db: {} }));
vi.mock('#lib/server/books/library.js', () => ({
	coverSrc: vi.fn(() => null),
	getWork: vi.fn(),
	workFiles: vi.fn(async () => []),
	workNotes: vi.fn(async () => []),
	workSessions: vi.fn(async () => []),
	saveProgress: vi.fn(async () => ({ sessionId: 7 })),
	setStatus: vi.fn(),
	setRating: vi.fn(),
	setManualProgress: vi.fn(),
	logManualSession: vi.fn(),
	libraryCards: vi.fn(async () => []),
	libraryStats: vi.fn(async () => ({}))
}));
vi.mock('#lib/server/books/notes.js', async (original) => ({
	...(await original<typeof import('#lib/server/books/notes.js')>()),
	createNote: vi.fn(async () => ({ id: 1 })),
	updateNote: vi.fn(async () => ({ id: 1 })),
	deleteNote: vi.fn(async () => true)
}));

import * as library from '#lib/server/books/library.js';
import * as notes from '#lib/server/books/notes.js';
import { POST as progress } from './[id=integer]/progress/+server';
import { POST as createNote } from './[id=integer]/notes/+server';
import {
	PATCH as patchNote,
	DELETE as deleteNote
} from './[id=integer]/notes/[noteId=integer]/+server';
import { GET as file } from './files/[id=integer]/+server';
import { load as readerLoad } from './[id=integer]/read/+page.server';
import { actions, load as detailLoad } from './[id=integer]/+page.server';

const OWNER = { id: 'u1', email: 'stan@stanrunge.dev', role: 'admin' };
const STRANGER = { id: 'u2', email: 'someone@example.com', role: 'admin' };

function event(user: object | null, init: RequestInit = {}, params: Record<string, string> = {}) {
	return {
		locals: { user, session: null },
		params: { id: '1', noteId: '1', ...params },
		request: new Request('https://site.test/trackers/books/1', init),
		url: new URL('https://site.test/trackers/books/1'),
		setHeaders: vi.fn()
	} as never;
}

async function status(fn: () => unknown) {
	try {
		const result = await fn();
		return result instanceof Response ? result.status : 200;
	} catch (e) {
		if (isHttpError(e)) return e.status;
		throw e;
	}
}

const json = (body: unknown, method = 'POST') => ({
	method,
	headers: { 'content-type': 'application/json' },
	body: JSON.stringify(body)
});

const work = {
	id: 1,
	title: 'Dune',
	subtitle: null,
	authors: ['Frank Herbert'],
	year: 1965,
	publisher: null,
	isbn13: null,
	isbn10: null,
	language: 'en',
	pageCount: 412,
	description: null,
	tags: [],
	coverPath: null,
	coverUrl: null,
	openlibraryWorkId: null
};

beforeEach(() => {
	vi.clearAllMocks();
	vi.mocked(library.getWork).mockResolvedValue({ work, progress: null } as never);
});

describe.each([
	['anonymous', null],
	['another signed-in user', STRANGER]
])('%s', (_, user) => {
	it('gets 404 from every owner-only endpoint', async () => {
		expect(await status(() => progress(event(user, json({ percent: 10 }))))).toBe(404);
		expect(await status(() => createNote(event(user, json({ note: 'hi' }))))).toBe(404);
		expect(await status(() => patchNote(event(user, json({ note: 'x' }, 'PATCH'))))).toBe(404);
		expect(await status(() => deleteNote(event(user, { method: 'DELETE' })))).toBe(404);
		expect(await status(() => file(event(user)))).toBe(404);
		expect(await status(() => readerLoad(event(user)))).toBe(404);
		for (const action of Object.values(actions))
			expect(
				await status(() => action(event(user, { method: 'POST', body: new FormData() })))
			).toBe(404);
		expect(library.saveProgress).not.toHaveBeenCalled();
		expect(notes.createNote).not.toHaveBeenCalled();
		expect(library.setStatus).not.toHaveBeenCalled();
	});
	it('sees the public catalogue page without files, notes or sessions', async () => {
		const data = (await detailLoad(event(user))) as Record<string, unknown>;
		expect(data.owner).toBe(false);
		expect(data).not.toHaveProperty('files');
		expect(data).not.toHaveProperty('notes');
		expect(data).not.toHaveProperty('sessions');
		expect(library.workNotes).not.toHaveBeenCalled();
	});
});

describe('owner', () => {
	it('saves progress and gets a session id back', async () => {
		const res = await progress(
			event(OWNER, json({ fileId: 2, locator: 'page:5', page: 5, percent: 1.234 }))
		);
		expect(res.status).toBe(200);
		expect(await res.json()).toEqual({ sessionId: 7 });
		expect(library.saveProgress).toHaveBeenCalledWith(
			1,
			expect.objectContaining({ percent: 1.23, page: 5 })
		);
	});
	it('rejects invalid progress', async () => {
		expect(await status(() => progress(event(OWNER, json({ percent: 140 }))))).toBe(400);
		expect(await status(() => progress(event(OWNER, { method: 'POST', body: '{' })))).toBe(400);
		expect(library.saveProgress).not.toHaveBeenCalled();
	});
	it('404s progress for a book that does not exist', async () => {
		vi.mocked(library.saveProgress).mockResolvedValueOnce(null);
		expect(await status(() => progress(event(OWNER, json({ percent: 3 }))))).toBe(404);
	});
	it('creates highlights and refuses empty notes', async () => {
		expect(
			await status(() => createNote(event(OWNER, json({ highlight: 'quote', locator: 'page:1' }))))
		).toBe(201);
		expect(await status(() => createNote(event(OWNER, json({ note: '   ' }))))).toBe(400);
	});
	it('sees notes, files and sessions on the detail page', async () => {
		const data = (await detailLoad(event(OWNER))) as Record<string, unknown>;
		expect(data.owner).toBe(true);
		expect(data).toHaveProperty('notes');
		expect(data).toHaveProperty('files');
	});
	it('gets 404 from the reader when the book has no readable file', async () => {
		expect(await status(() => readerLoad(event(OWNER)))).toBe(404);
	});
});