require("app-module-path").addPath(__dirname);

const { time } = require("lib/time-utils.js");
const {
	asyncTest,
	fileContentEqual,
	setupDatabase,
	setupDatabaseAndSynchronizer,
	db,
	synchronizer,
	fileApi,
	sleep,
	clearDatabase,
	switchClient,
	syncTargetId,
	objectsEqual,
	checkThrowAsync,
} = require("test-utils.js");
const InteropService = require("lib/services/InteropService.js");
const Folder = require("lib/models/Folder.js");
const Note = require("lib/models/Note.js");
const Tag = require("lib/models/Tag.js");
const NoteTag = require("lib/models/NoteTag.js");
const Resource = require("lib/models/Resource.js");
const fs = require("fs-extra");
const ArrayUtils = require("lib/ArrayUtils");
const ObjectUtils = require("lib/ObjectUtils");
const { shim } = require("lib/shim.js");

process.on("unhandledRejection", (reason, p) => {
	console.log("Unhandled Rejection at: Promise", p, "reason:", reason);
});

function exportDir() {
	return __dirname + "/export";
}

function fieldsEqual(model1, model2, fieldNames) {
	for (let i = 0; i < fieldNames.length; i++) {
		const f = fieldNames[i];
		expect(model1[f]).toBe(model2[f], "For key " + f);
	}
}

describe("services_InteropService", function() {
	beforeEach(async done => {
		await setupDatabaseAndSynchronizer(1);
		await switchClient(1);

		const dir = exportDir();
		await fs.remove(dir);
		await fs.mkdirp(dir);
		done();
	});

	it(
		"should export and import folders",
		asyncTest(async () => {
			const service = new InteropService();
			let folder1 = await Folder.save({ title: "folder1" });
			folder1 = await Folder.load(folder1.id);
			const filePath = exportDir() + "/test.jex";

			await service.export({ path: filePath });

			await Folder.delete(folder1.id);

			await service.import({ path: filePath });

			// Check that a new folder, with a new ID, has been created

			expect(await Folder.count()).toBe(1);
			let folder2 = (await Folder.all())[0];
			expect(folder2.id).not.toBe(folder1.id);
			expect(folder2.title).toBe(folder1.title);

			await service.import({ path: filePath });

			// As there was already a folder with the same title, check that the new one has been renamed

			await Folder.delete(folder2.id);
			let folder3 = (await Folder.all())[0];
			expect(await Folder.count()).toBe(1);
			expect(folder3.title).not.toBe(folder2.title);

			let fieldNames = Folder.fieldNames();
			fieldNames = ArrayUtils.removeElement(fieldNames, "id");
			fieldNames = ArrayUtils.removeElement(fieldNames, "title");

			fieldsEqual(folder3, folder1, fieldNames);
		})
	);

	it(
		"should export and import folders and notes",
		asyncTest(async () => {
			const service = new InteropService();
			let folder1 = await Folder.save({ title: "folder1" });
			let note1 = await Note.save({ title: "ma note", parent_id: folder1.id });
			note1 = await Note.load(note1.id);
			const filePath = exportDir() + "/test.jex";

			await service.export({ path: filePath });

			await Folder.delete(folder1.id);
			await Note.delete(note1.id);

			await service.import({ path: filePath });

			expect(await Note.count()).toBe(1);
			let note2 = (await Note.all())[0];
			let folder2 = (await Folder.all())[0];

			expect(note1.parent_id).not.toBe(note2.parent_id);
			expect(note1.id).not.toBe(note2.id);
			expect(note2.parent_id).toBe(folder2.id);

			let fieldNames = Note.fieldNames();
			fieldNames = ArrayUtils.removeElement(fieldNames, "id");
			fieldNames = ArrayUtils.removeElement(fieldNames, "parent_id");

			fieldsEqual(note1, note2, fieldNames);

			await service.import({ path: filePath });

			note2 = (await Note.all())[0];
			let note3 = (await Note.all())[1];

			expect(note2.id).not.toBe(note3.id);
			expect(note2.parent_id).not.toBe(note3.parent_id);

			fieldsEqual(note2, note3, fieldNames);
		})
	);

	it(
		"should export and import notes to specific folder",
		asyncTest(async () => {
			const service = new InteropService();
			let folder1 = await Folder.save({ title: "folder1" });
			let note1 = await Note.save({ title: "ma note", parent_id: folder1.id });
			note1 = await Note.load(note1.id);
			const filePath = exportDir() + "/test.jex";

			await service.export({ path: filePath });

			await Note.delete(note1.id);

			await service.import({ path: filePath, destinationFolderId: folder1.id });

			expect(await Note.count()).toBe(1);
			expect(await Folder.count()).toBe(1);

			expect(await checkThrowAsync(async () => await service.import({ path: filePath, destinationFolderId: "oops" }))).toBe(true);
		})
	);

	it(
		"should export and import tags",
		asyncTest(async () => {
			const service = new InteropService();
			const filePath = exportDir() + "/test.jex";
			let folder1 = await Folder.save({ title: "folder1" });
			let note1 = await Note.save({ title: "ma note", parent_id: folder1.id });
			let tag1 = await Tag.save({ title: "mon tag" });
			tag1 = await Tag.load(tag1.id);
			await Tag.addNote(tag1.id, note1.id);

			await service.export({ path: filePath });

			await Folder.delete(folder1.id);
			await Note.delete(note1.id);
			await Tag.delete(tag1.id);

			await service.import({ path: filePath });

			expect(await Tag.count()).toBe(1);
			let tag2 = (await Tag.all())[0];
			let note2 = (await Note.all())[0];
			expect(tag1.id).not.toBe(tag2.id);

			let fieldNames = Note.fieldNames();
			fieldNames = ArrayUtils.removeElement(fieldNames, "id");
			fieldsEqual(tag1, tag2, fieldNames);

			let noteIds = await Tag.noteIds(tag2.id);
			expect(noteIds.length).toBe(1);
			expect(noteIds[0]).toBe(note2.id);

			await service.import({ path: filePath });

			// If importing again, no new tag should be created as one with
			// the same name already existed. The newly imported note should
			// however go under that already existing tag.
			expect(await Tag.count()).toBe(1);
			noteIds = await Tag.noteIds(tag2.id);
			expect(noteIds.length).toBe(2);
		})
	);

	it(
		"should export and import resources",
		asyncTest(async () => {
			const service = new InteropService();
			const filePath = exportDir() + "/test.jex";
			let folder1 = await Folder.save({ title: "folder1" });
			let note1 = await Note.save({ title: "ma note", parent_id: folder1.id });
			await shim.attachFileToNote(note1, __dirname + "/../tests/support/photo.jpg");
			note1 = await Note.load(note1.id);
			let resourceIds = Note.linkedResourceIds(note1.body);
			let resource1 = await Resource.load(resourceIds[0]);

			await service.export({ path: filePath });

			await Note.delete(note1.id);

			await service.import({ path: filePath });

			expect(await Resource.count()).toBe(2);

			let note2 = (await Note.all())[0];
			expect(note2.body).not.toBe(note1.body);
			resourceIds = Note.linkedResourceIds(note2.body);
			expect(resourceIds.length).toBe(1);
			let resource2 = await Resource.load(resourceIds[0]);
			expect(resource2.id).not.toBe(resource1.id);

			let fieldNames = Note.fieldNames();
			fieldNames = ArrayUtils.removeElement(fieldNames, "id");
			fieldsEqual(resource1, resource2, fieldNames);

			const resourcePath1 = Resource.fullPath(resource1);
			const resourcePath2 = Resource.fullPath(resource2);

			expect(resourcePath1).not.toBe(resourcePath2);
			expect(fileContentEqual(resourcePath1, resourcePath2)).toBe(true);
		})
	);

	it(
		"should export and import single notes",
		asyncTest(async () => {
			const service = new InteropService();
			const filePath = exportDir() + "/test.jex";
			let folder1 = await Folder.save({ title: "folder1" });
			let note1 = await Note.save({ title: "ma note", parent_id: folder1.id });

			await service.export({ path: filePath, sourceNoteIds: [note1.id] });

			await Note.delete(note1.id);
			await Folder.delete(folder1.id);

			await service.import({ path: filePath });

			expect(await Note.count()).toBe(1);
			expect(await Folder.count()).toBe(1);

			let folder2 = (await Folder.all())[0];
			expect(folder2.title).toBe("test");
		})
	);

	it(
		"should export and import single folders",
		asyncTest(async () => {
			const service = new InteropService();
			const filePath = exportDir() + "/test.jex";
			let folder1 = await Folder.save({ title: "folder1" });
			let note1 = await Note.save({ title: "ma note", parent_id: folder1.id });

			await service.export({ path: filePath, sourceFolderIds: [folder1.id] });

			await Note.delete(note1.id);
			await Folder.delete(folder1.id);

			await service.import({ path: filePath });

			expect(await Note.count()).toBe(1);
			expect(await Folder.count()).toBe(1);

			let folder2 = (await Folder.all())[0];
			expect(folder2.title).toBe("folder1");
		})
	);
});