import { beforeEach, describe, expect, it } from "vitest";
import { TASK_FILE_EXTENSION } from "@/model/taskFile";
import { err } from "neverthrow";
import { InMemoryFileSystem } from "../../tests/helpers/InMemoryFileSystem";
import { appError, AppErrorVariant } from "@/error";
import { TaskPriority } from "@/model/taskPriority";
import { TaskStatus } from "@/model/taskStatus";
import { FsTaskRepository } from "@/storage/FsTaskRepository";
import { openTask } from "./openTask";

describe("openTask", () => {
	const folder = "/tasks";
	let repo: FsTaskRepository;

	beforeEach(() => {
		repo = new FsTaskRepository(new InMemoryFileSystem(), TASK_FILE_EXTENSION);
	});

	it("returns file path and task for an existing id", async () => {
		const created = await repo.create(folder, {
			title: "Open me",
			description: "body",
			status: TaskStatus.OPEN,
			priority: TaskPriority.HIGH,
			tags: [],
			assignee: "",
		});

		const result = await openTask(repo, {
			folderPath: folder,
			id: created.id,
		});

		expect(result.isOk()).toBe(true);
		if (result.isErr()) return;
		expect(result.value.path).toBe(`/tasks/open-me${TASK_FILE_EXTENSION}`);
		expect(result.value.task).toEqual(created);
	});

	it("returns not-found for unknown id", async () => {
		const result = await openTask(repo, {
			folderPath: folder,
			id: "missing",
		});
		expect(result).toEqual(
			err(appError(AppErrorVariant.NOT_FOUND, { id: "missing" })),
		);
	});

	it("rejects missing folder", async () => {
		const result = await openTask(repo, {
			folderPath: undefined,
			id: "x",
		});
		expect(result).toEqual(err(appError(AppErrorVariant.NO_FOLDER)));
	});

	it("rejects missing id", async () => {
		const result = await openTask(repo, {
			folderPath: folder,
			id: undefined,
		});
		expect(result).toEqual(err(appError(AppErrorVariant.NO_ID)));
	});
});