import {
	describe,
	it,
	expect,
	vi,
	beforeEach,
	Mock, afterEach,
} from 'vitest';
import { readFile, readdir } from 'fs/promises';
import { compileFromInput } from '../../src/compilers/dir';

vi.mock('fs/promises');

const completeBookFile = {
	title: 'Astro Sandbox',
	publisher: '',
	creator: 'John Doe',
	contributors: [
		'Jane Doe'
	],
	description: 'Retrieve from package.json',
	subjects: [
		'A subject of the publication',
		'Another subject of the publication'
	],
	rights: '© copyright notice or get from package.json LICENSE'
};

describe('dir compiler', () => {
	let mockReaddir: Mock;
	beforeEach(() => {
		mockReaddir = readdir as Mock;
	});
	afterEach(() => {
		mockReaddir.mockReset();
	});

	let mockReadFile: Mock;
	beforeEach(() => {
		mockReadFile = readFile as Mock;
	});
	afterEach(() => {
		mockReadFile.mockReset();
	});

	it('gets a list of file buffers', async () => {
		mockReaddir.mockResolvedValue([
			'patchouli.book.json',
			'patchouli.binding.json',
		]);

		mockReadFile.mockImplementation(async (path: string) => {
			if (path.endsWith('/patchouli.book.json')) {
				return JSON.stringify(completeBookFile);
			}

			if (path.endsWith('/patchouli.binding.json')) {
				return JSON.stringify({

				});
			}

			return '';
		});

		await compileFromInput({
			path: 'path/to/project',
		});
	});

	describe('astro', () => {
		it('reads the binding file', async () => {
			mockReaddir.mockResolvedValue([
				'patchouli.book.json',
				'patchouli.binding.json',
			]);

			mockReadFile.mockImplementation(async (path: string) => {
				if (path.endsWith('/patchouli.book.json')) {
					return JSON.stringify(completeBookFile);
				}

				if (path.endsWith('/patchouli.binding.json')) {
					return JSON.stringify({
						generatorDistDirectory: './custom-dir',
					});
				}

				return '';
			});

			await compileFromInput({
				path: 'path/to/project',
			});
		});
	});
});