import { APIClient, isAPIError } from "../src/api";
import { enableFetchMocks } from "jest-fetch-mock";

enableFetchMocks();

function getFetchCall(call: any[]) {
	const { body, method } = call[1];
	if (body != null && typeof body !== "string") {
		throw new Error("invalid body");
	}
	return {
		url: call[0],
		method: method,
		body: JSON.parse(body as any),
	};
}

describe("API", () => {
	test("success", async () => {
		fetchMock.resetMocks();
		fetchMock.mockResponse(async (req) => {
			const body = await req.json();
			if (req.method === "POST" && req.url === "https://trashposs.test/api/i") {
				if (body.i === "TOKEN") {
					return JSON.stringify({ id: "foo" });
				} else {
					return { status: 400 };
				}
			} else {
				return { status: 404 };
			}
		});

		const cli = new APIClient({
			origin: "https://trashposs.test",
			credential: "TOKEN",
		});

		const res = await cli.request("i");

		expect(res).toEqual({
			id: "foo",
		});

		expect(getFetchCall(fetchMock.mock.calls[0])).toEqual({
			url: "https://trashposs.test/api/i",
			method: "POST",
			body: { i: "TOKEN" },
		});
	});

	test("with params", async () => {
		fetchMock.resetMocks();
		fetchMock.mockResponse(async (req) => {
			const body = await req.json();
			if (
				req.method === "POST" &&
				req.url === "https://trashposs.test/api/notes/show"
			) {
				if (body.i === "TOKEN" && body.noteId === "aaaaa") {
					return JSON.stringify({ id: "foo" });
				} else {
					return { status: 400 };
				}
			} else {
				return { status: 404 };
			}
		});

		const cli = new APIClient({
			origin: "https://trashposs.test",
			credential: "TOKEN",
		});

		const res = await cli.request("notes/show", { noteId: "aaaaa" });

		expect(res).toEqual({
			id: "foo",
		});

		expect(getFetchCall(fetchMock.mock.calls[0])).toEqual({
			url: "https://trashposs.test/api/notes/show",
			method: "POST",
			body: { i: "TOKEN", noteId: "aaaaa" },
		});
	});

	test("204 No Content で null が返る", async () => {
		fetchMock.resetMocks();
		fetchMock.mockResponse(async (req) => {
			if (
				req.method === "POST" &&
				req.url === "https://trashposs.test/api/reset-password"
			) {
				return { status: 204 };
			} else {
				return { status: 404 };
			}
		});

		const cli = new APIClient({
			origin: "https://trashposs.test",
			credential: "TOKEN",
		});

		const res = await cli.request("reset-password", {
			token: "aaa",
			password: "aaa",
		});

		expect(res).toEqual(null);

		expect(getFetchCall(fetchMock.mock.calls[0])).toEqual({
			url: "https://trashposs.test/api/reset-password",
			method: "POST",
			body: { i: "TOKEN", token: "aaa", password: "aaa" },
		});
	});

	test("インスタンスの credential が指定されていても引数で credential が null ならば null としてリクエストされる", async () => {
		fetchMock.resetMocks();
		fetchMock.mockResponse(async (req) => {
			const body = await req.json();
			if (req.method === "POST" && req.url === "https://trashposs.test/api/i") {
				if (typeof body.i === "string") {
					return JSON.stringify({ id: "foo" });
				} else {
					return {
						status: 401,
						body: JSON.stringify({
							error: {
								message: "Credential required.",
								code: "CREDENTIAL_REQUIRED",
								id: "1384574d-a912-4b81-8601-c7b1c4085df1",
							},
						}),
					};
				}
			} else {
				return { status: 404 };
			}
		});

		try {
			const cli = new APIClient({
				origin: "https://trashposs.test",
				credential: "TOKEN",
			});

			await cli.request("i", {}, null);
		} catch (e) {
			expect(isAPIError(e)).toEqual(true);
		}
	});

	test("api error", async () => {
		fetchMock.resetMocks();
		fetchMock.mockResponse(async (req) => {
			return {
				status: 500,
				body: JSON.stringify({
					error: {
						message:
							"Internal error occurred. Please contact us if the error persists.",
						code: "INTERNAL_ERROR",
						id: "5d37dbcb-891e-41ca-a3d6-e690c97775ac",
						kind: "server",
					},
				}),
			};
		});

		try {
			const cli = new APIClient({
				origin: "https://trashposs.test",
				credential: "TOKEN",
			});

			await cli.request("i");
		} catch (e: any) {
			expect(isAPIError(e)).toEqual(true);
			expect(e.id).toEqual("5d37dbcb-891e-41ca-a3d6-e690c97775ac");
		}
	});

	test("network error", async () => {
		fetchMock.resetMocks();
		fetchMock.mockAbort();

		try {
			const cli = new APIClient({
				origin: "https://trashposs.test",
				credential: "TOKEN",
			});

			await cli.request("i");
		} catch (e) {
			expect(isAPIError(e)).toEqual(false);
		}
	});

	test("json parse error", async () => {
		fetchMock.resetMocks();
		fetchMock.mockResponse(async (req) => {
			return {
				status: 500,
				body: "<html>I AM NOT JSON</html>",
			};
		});

		try {
			const cli = new APIClient({
				origin: "https://trashposs.test",
				credential: "TOKEN",
			});

			await cli.request("i");
		} catch (e) {
			expect(isAPIError(e)).toEqual(false);
		}
	});
});