import { afterEach, describe, expect, it, vi } from "vitest";
import { _resetItadWarning, getItadId, itadFetch } from "@/lib/game/itad";
import { toIsoDate } from "@/lib/game/game-format";

afterEach(() => {
    vi.unstubAllGlobals();
    vi.restoreAllMocks();
    _resetItadWarning();
});

describe("toIsoDate", () => {
    it("converts unix seconds to ISO dates", () => {
        expect(toIsoDate(1705276800)).toBe("2024-01-15");
    });

    it("returns null for missing values", () => {
        expect(toIsoDate(undefined)).toBeNull();
        expect(toIsoDate(0)).toBeNull();
    });
});

describe("itadFetch", () => {
    it("returns null without an API key and without fetching", async () => {
        vi.stubGlobal("process", { ...process, env: {} });
        const fetchMock = vi.fn();
        vi.stubGlobal("fetch", fetchMock);
        await expect(itadFetch("/games/info/v2")).resolves.toBeNull();
        expect(fetchMock).not.toHaveBeenCalled();
    });

    it("returns data on success and null on HTTP error", async () => {
        vi.stubGlobal("process", { ...process, env: { ITAD_API_KEY: "k" } });
        vi.stubGlobal(
            "fetch",
            vi.fn(async () => ({ ok: true, json: async () => ({ id: "1" }) }) as Response),
        );
        await expect(itadFetch("/games/info/v2")).resolves.toEqual({ id: "1" });
        vi.stubGlobal(
            "fetch",
            vi.fn(async () => {
                throw new Error("down");
            }),
        );
        await expect(itadFetch("/games/info/v2")).resolves.toBeNull();
        vi.stubGlobal(
            "fetch",
            vi.fn(async () => ({ ok: false, status: 429 }) as Response),
        );
        await expect(itadFetch("/games/info/v2")).resolves.toBeNull();
    });
});

describe("getItadId", () => {
    it("matches normalized titles", async () => {
        vi.stubGlobal("process", { ...process, env: { ITAD_API_KEY: "k" } });
        vi.stubGlobal(
            "fetch",
            vi.fn(
                async () =>
                    ({
                        ok: true,
                        json: async () => [{ id: "7", title: "Elden Ring" }],
                    }) as Response,
            ),
        );
        await expect(getItadId("ELDEN RING")).resolves.toBe("7");
        await expect(getItadId("Unknown")).resolves.toBeNull();
    });
});