import { describe, it, expect, vi, beforeEach, afterEach } from "vitest";
import { EspnScheduleAdapter } from "../espn-schedule";

const SAMPLE_RESPONSE = {
  events: [
    {
      id: "401234567",
      date: "2025-04-01T18:00:00Z",
      competitions: [
        {
          competitors: [
            {
              id: "9",
              team: { id: "9", displayName: "Boston Red Sox" },
              score: "5",
              homeAway: "home" as const,
              winner: true,
            },
            {
              id: "4",
              team: { id: "4", displayName: "New York Yankees" },
              score: "3",
              homeAway: "away" as const,
              winner: false,
            },
          ],
          status: { type: { name: "STATUS_FINAL", completed: true } },
          matchday: null,
        },
      ],
    },
    {
      id: "401234568",
      date: "2025-04-02T19:00:00Z",
      competitions: [
        {
          competitors: [
            {
              id: "12",
              team: { id: "12", displayName: "Los Angeles Dodgers" },
              score: "0",
              homeAway: "home" as const,
              winner: false,
            },
            {
              id: "15",
              team: { id: "15", displayName: "San Francisco Giants" },
              score: "0",
              homeAway: "away" as const,
              winner: false,
            },
          ],
          status: { type: { name: "STATUS_SCHEDULED", completed: false } },
          matchday: null,
        },
      ],
    },
  ],
};

describe("EspnScheduleAdapter", () => {
  beforeEach(() => {
    vi.stubGlobal("fetch", vi.fn());
  });

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

  it("maps completed matches with scores and winner", async () => {
    vi.mocked(fetch).mockResolvedValueOnce({
      ok: true,
      json: async () => SAMPLE_RESPONSE,
    } as Response);

    const adapter = new EspnScheduleAdapter("baseball/mlb");
    const matches = await adapter.fetchMatches("2025");

    expect(matches).toHaveLength(2);
    const completed = matches[0];
    expect(completed.externalMatchId).toBe("401234567");
    expect(completed.team1ExternalId).toBe("9");
    expect(completed.team1Name).toBe("Boston Red Sox");
    expect(completed.team2ExternalId).toBe("4");
    expect(completed.team2Name).toBe("New York Yankees");
    expect(completed.team1Score).toBe(5);
    expect(completed.team2Score).toBe(3);
    expect(completed.winnerExternalId).toBe("9");
    expect(completed.status).toBe("complete");
    expect(completed.completedAt).toBeInstanceOf(Date);
  });

  it("maps scheduled matches with null scores", async () => {
    vi.mocked(fetch).mockResolvedValueOnce({
      ok: true,
      json: async () => SAMPLE_RESPONSE,
    } as Response);

    const [, scheduled] = await new EspnScheduleAdapter("baseball/mlb").fetchMatches("2025");
    expect(scheduled.status).toBe("scheduled");
    expect(scheduled.winnerExternalId).toBeNull();
    expect(scheduled.completedAt).toBeNull();
    expect(scheduled.startedAt).toBeNull();
  });

  it("sets matchStage to null for all ESPN matches", async () => {
    vi.mocked(fetch).mockResolvedValueOnce({
      ok: true,
      json: async () => SAMPLE_RESPONSE,
    } as Response);

    const matches = await new EspnScheduleAdapter("baseball/mlb").fetchMatches("2025");
    for (const m of matches) {
      expect(m.matchStage).toBeNull();
    }
  });

  it("builds correct ESPN URL with sport path and dates param", async () => {
    vi.mocked(fetch).mockResolvedValueOnce({
      ok: true,
      json: async () => ({ events: [] }),
    } as Response);

    await new EspnScheduleAdapter("basketball/nba").fetchMatches("2025");

    expect(fetch).toHaveBeenCalledWith(
      expect.stringContaining("basketball/nba")
    );
    expect(fetch).toHaveBeenCalledWith(
      expect.stringContaining("dates=2025")
    );
  });

  it("throws on non-ok API response", async () => {
    vi.mocked(fetch).mockResolvedValueOnce({
      ok: false,
      status: 429,
      text: async () => "Too Many Requests",
    } as Response);

    await expect(new EspnScheduleAdapter("baseball/mlb").fetchMatches("2025")).rejects.toThrow(
      "ESPN API error 429"
    );
  });

  it("handles in-progress matches", async () => {
    const response = {
      events: [
        {
          id: "999",
          date: "2025-04-03T20:00:00Z",
          competitions: [
            {
              competitors: [
                { id: "1", team: { id: "1", displayName: "Home Team" }, score: "2", homeAway: "home" as const },
                { id: "2", team: { id: "2", displayName: "Away Team" }, score: "1", homeAway: "away" as const },
              ],
              status: { type: { name: "STATUS_IN_PROGRESS", completed: false } },
            },
          ],
        },
      ],
    };
    vi.mocked(fetch).mockResolvedValueOnce({ ok: true, json: async () => response } as Response);

    const [m] = await new EspnScheduleAdapter("baseball/mlb").fetchMatches("2025");
    expect(m.status).toBe("in_progress");
    expect(m.startedAt).toBeInstanceOf(Date);
    expect(m.completedAt).toBeNull();
  });

  it("preserves score of 0 — does not coerce falsy string to null", async () => {
    const response = {
      events: [
        {
          id: "777",
          date: "2025-04-05T18:00:00Z",
          competitions: [
            {
              competitors: [
                { id: "10", team: { id: "10", displayName: "Team A" }, score: "0", homeAway: "home" as const, winner: false },
                { id: "11", team: { id: "11", displayName: "Team B" }, score: "3", homeAway: "away" as const, winner: true },
              ],
              status: { type: { name: "STATUS_FINAL", completed: true } },
              matchday: null,
            },
          ],
        },
      ],
    };
    vi.mocked(fetch).mockResolvedValueOnce({ ok: true, json: async () => response } as Response);

    const [m] = await new EspnScheduleAdapter("baseball/mlb").fetchMatches("2025");
    expect(m.team1Score).toBe(0);
    expect(m.team2Score).toBe(3);
  });

  it("returns null (not NaN) for non-numeric score strings", async () => {
    const response = {
      events: [
        {
          id: "778",
          date: "2025-04-06T18:00:00Z",
          competitions: [
            {
              competitors: [
                { id: "10", team: { id: "10", displayName: "Team A" }, score: "F/OT", homeAway: "home" as const, winner: true },
                { id: "11", team: { id: "11", displayName: "Team B" }, score: "TBD", homeAway: "away" as const, winner: false },
              ],
              status: { type: { name: "STATUS_FINAL", completed: true } },
              matchday: null,
            },
          ],
        },
      ],
    };
    vi.mocked(fetch).mockResolvedValueOnce({ ok: true, json: async () => response } as Response);

    const [m] = await new EspnScheduleAdapter("baseball/mlb").fetchMatches("2025");
    expect(m.team1Score).toBeNull();
    expect(m.team2Score).toBeNull();
  });

  it("appends seasontype param to URL when seasonType is provided", async () => {
    vi.mocked(fetch).mockResolvedValueOnce({
      ok: true,
      json: async () => ({ events: [] }),
    } as Response);

    await new EspnScheduleAdapter("baseball/mlb", 3).fetchMatches("2025");

    expect(fetch).toHaveBeenCalledWith(
      expect.stringContaining("seasontype=3")
    );
  });
});