import { describe, it, expect } from "vitest";
import { render, screen } from "@testing-library/react";
import { RegularSeasonStandings } from "../RegularSeasonStandings";

function makeRow(overrides: Partial<{
  id: string;
  participantId: string;
  wins: number;
  losses: number;
  otLosses: number | null;
  gamesPlayed: number;
  winPct: string | null;
  gamesBack: string | null;
  conference: string | null;
  division: string | null;
  conferenceRank: number | null;
  divisionRank: number | null;
  leagueRank: number | null;
  streak: string | null;
  lastTen: string | null;
  homeRecord: string | null;
  awayRecord: string | null;
  syncedAt: string | null;
  participant: { id: string; name: string; shortName?: string | null };
}> = {}) {
  return {
    id: overrides.id ?? "row-1",
    participantId: overrides.participantId ?? "p-1",
    wins: overrides.wins ?? 40,
    losses: overrides.losses ?? 28,
    otLosses: overrides.otLosses ?? null,
    gamesPlayed: overrides.gamesPlayed ?? 68,
    winPct: overrides.winPct ?? "0.5882",
    gamesBack: overrides.gamesBack ?? null,
    conference: overrides.conference ?? null,
    division: overrides.division ?? null,
    conferenceRank: overrides.conferenceRank ?? null,
    divisionRank: overrides.divisionRank ?? null,
    leagueRank: overrides.leagueRank ?? 1,
    streak: overrides.streak ?? null,
    lastTen: overrides.lastTen ?? null,
    homeRecord: overrides.homeRecord ?? null,
    awayRecord: overrides.awayRecord ?? null,
    syncedAt: overrides.syncedAt ?? null,
    participant: overrides.participant ?? { id: "p-1", name: "Boston Celtics" },
  };
}

const NO_OWNERSHIPS = {};
const NO_USER_IDS: string[] = [];

describe("RegularSeasonStandings", () => {
  it("renders nothing when standings array is empty", () => {
    const { container } = render(
      <RegularSeasonStandings
        standings={[]}
        teamOwnerships={NO_OWNERSHIPS}
        userParticipantIds={NO_USER_IDS}
      />
    );
    expect(container.firstChild).toBeNull();
  });

  it("renders team names", () => {
    render(
      <RegularSeasonStandings
        standings={[
          makeRow({ participant: { id: "p-1", name: "Boston Celtics" } }),
          makeRow({ id: "row-2", participantId: "p-2", participant: { id: "p-2", name: "Toronto Raptors" } }),
        ]}
        teamOwnerships={NO_OWNERSHIPS}
        userParticipantIds={NO_USER_IDS}
      />
    );
    expect(screen.getByText("Boston Celtics")).toBeInTheDocument();
    expect(screen.getByText("Toronto Raptors")).toBeInTheDocument();
  });

  it("shows OTL column when showOtLosses=true", () => {
    render(
      <RegularSeasonStandings
        standings={[makeRow({ otLosses: 5 })]}
        teamOwnerships={NO_OWNERSHIPS}
        userParticipantIds={NO_USER_IDS}
        showOtLosses={true}
      />
    );
    expect(screen.getByText("OTL")).toBeInTheDocument();
  });

  it("hides OTL column when showOtLosses=false (default)", () => {
    render(
      <RegularSeasonStandings
        standings={[makeRow()]}
        teamOwnerships={NO_OWNERSHIPS}
        userParticipantIds={NO_USER_IDS}
      />
    );
    expect(screen.queryByText("OTL")).not.toBeInTheDocument();
  });

  it("renders conference headings and inline division labels when present", () => {
    render(
      <RegularSeasonStandings
        standings={[
          makeRow({ conference: "Eastern", division: "Atlantic", conferenceRank: 1, participant: { id: "p-1", name: "Boston Celtics" } }),
          makeRow({ id: "row-2", participantId: "p-2", conference: "Western", division: "Pacific", conferenceRank: 1, participant: { id: "p-2", name: "LA Lakers" } }),
        ]}
        teamOwnerships={NO_OWNERSHIPS}
        userParticipantIds={NO_USER_IDS}
      />
    );
    // Conference group headings are rendered as <h3>
    expect(screen.getByText(/Eastern Conference/i)).toBeInTheDocument();
    expect(screen.getByText(/Western Conference/i)).toBeInTheDocument();
    // Division is now shown as an inline label per row (not a section header)
    expect(screen.getAllByText(/Atlantic/i).length).toBeGreaterThan(0);
    expect(screen.getAllByText(/Pacific/i).length).toBeGreaterThan(0);
  });

  it("shows ownership badge for drafted teams", () => {
    render(
      <RegularSeasonStandings
        standings={[makeRow({ participantId: "p-1" })]}
        teamOwnerships={{
          "p-1": { teamName: "Team Alpha", ownerName: "Alice", teamId: "t-1" },
        }}
        userParticipantIds={NO_USER_IDS}
      />
    );
    expect(screen.getByText("Alice")).toBeInTheDocument();
  });

  it("does not show badge for undrafted teams", () => {
    render(
      <RegularSeasonStandings
        standings={[makeRow({ participantId: "p-1" })]}
        teamOwnerships={{}}
        userParticipantIds={NO_USER_IDS}
      />
    );
    // No owner badge should be present
    expect(screen.queryByText(/Alice/i)).not.toBeInTheDocument();
  });

  it("applies different styling for user's own team", () => {
    const { container } = render(
      <RegularSeasonStandings
        standings={[makeRow({ participantId: "p-1" })]}
        teamOwnerships={{}}
        userParticipantIds={["p-1"]}
      />
    );
    // The user's row should have a primary styling class
    const userRow = container.querySelector("tr.bg-primary\\/5");
    expect(userRow).not.toBeNull();
  });

  it("renders streak with correct color class for wins", () => {
    render(
      <RegularSeasonStandings
        standings={[makeRow({ streak: "W5" })]}
        teamOwnerships={NO_OWNERSHIPS}
        userParticipantIds={NO_USER_IDS}
      />
    );
    const streakEl = screen.getByText("W5");
    expect(streakEl.className).toContain("emerald");
  });

  it("renders streak with destructive class for losses", () => {
    render(
      <RegularSeasonStandings
        standings={[makeRow({ streak: "L3" })]}
        teamOwnerships={NO_OWNERSHIPS}
        userParticipantIds={NO_USER_IDS}
      />
    );
    const streakEl = screen.getByText("L3");
    expect(streakEl.className).toContain("destructive");
  });
});