import { describe, expect, it } from "vitest";
import type { Card, PublicPlayerView, ShowdownOutcome } from "@/lib/minigames/poker";
import {
  soundEventsForTransition,
  type PokerSoundSnapshot,
} from "@/components/frontend/minigames/poker/pokerSoundEvents";

const card = (rank: Card["rank"], suit: Card["suit"]): Card => ({ rank, suit });

function player(seatId: number, overrides: Partial<PublicPlayerView> = {}): PublicPlayerView {
  return {
    seatId,
    name: `Player ${seatId + 1}`,
    stack: 1000,
    committed: 0,
    totalCommitted: 0,
    folded: false,
    allIn: false,
    hasActed: false,
    eliminated: false,
    left: false,
    holeCards: null,
    cardCount: 2,
    ...overrides,
  };
}

function view(overrides: Partial<PokerSoundSnapshot["you"]> = {}): PokerSoundSnapshot["you"] {
  return {
    communityCards: [],
    config: { startingStack: 1000, smallBlind: 10, bigBlind: 20, turnTimeoutMs: 30000 },
    currentBet: 0,
    smallBlindSeat: 0,
    bigBlindSeat: 1,
    finalPlacements: null,
    handNumber: 1,
    phase: "betting",
    players: [player(0), player(1)],
    showdown: null,
    street: "preflop",
    toActSeat: 0,
    viewerSeat: 0,
    yourTurn: false,
    ...overrides,
  };
}

function snapshot(
  version: number,
  nextView: PokerSoundSnapshot["you"] = view(),
): PokerSoundSnapshot {
  return { version, you: nextView };
}

function showdown(netChange: number): ShowdownOutcome {
  return {
    pots: [],
    results: [
      {
        seatId: 0,
        handRank: null,
        bestHand: null,
        chipsWon: 100,
        netChange,
        placement: netChange > 0 ? 1 : 2,
      },
    ],
  };
}

describe("poker sound transition events", () => {
  it("emits a street deal descriptor for flop, turn, and river transitions", () => {
    const flop = soundEventsForTransition(
      snapshot(1),
      snapshot(
        2,
        view({ street: "flop", communityCards: [card(2, "s"), card(7, "h"), card(13, "d")] }),
      ),
    );
    const turn = soundEventsForTransition(
      snapshot(
        2,
        view({ street: "flop", communityCards: [card(2, "s"), card(7, "h"), card(13, "d")] }),
      ),
      snapshot(
        3,
        view({
          street: "turn",
          communityCards: [card(2, "s"), card(7, "h"), card(13, "d"), card(9, "c")],
        }),
      ),
    );
    const river = soundEventsForTransition(
      snapshot(
        3,
        view({
          street: "turn",
          communityCards: [card(2, "s"), card(7, "h"), card(13, "d"), card(9, "c")],
        }),
      ),
      snapshot(
        4,
        view({
          street: "river",
          communityCards: [card(2, "s"), card(7, "h"), card(13, "d"), card(9, "c"), card(4, "h")],
        }),
      ),
    );

    expect(flop).toEqual([
      expect.objectContaining({ type: "street-deal", street: "flop", cardCount: 3 }),
    ]);
    expect(turn).toEqual([
      expect.objectContaining({ type: "street-deal", street: "turn", cardCount: 1 }),
    ]);
    expect(river).toEqual([
      expect.objectContaining({ type: "street-deal", street: "river", cardCount: 1 }),
    ]);
  });

  it("emits turn gained and turn lost descriptors", () => {
    const gained = soundEventsForTransition(
      snapshot(1),
      snapshot(2, view({ yourTurn: true, toActSeat: 0 })),
    );
    const lost = soundEventsForTransition(
      snapshot(2, view({ yourTurn: true, toActSeat: 0 })),
      snapshot(3, view({ yourTurn: false, toActSeat: 1 })),
    );

    expect(gained.map((event) => event.type)).toContain("turn-gained");
    expect(lost.map((event) => event.type)).toContain("turn-lost");
  });

  it("emits wager, check, and fold descriptors from player transitions", () => {
    const previous = snapshot(1, view({ players: [player(0), player(1)] }));
    const next = snapshot(
      2,
      view({
        currentBet: 20,
        players: [
          player(0, { committed: 20, totalCommitted: 20, hasActed: true }),
          player(1, { folded: true, hasActed: true }),
        ],
      }),
    );
    const wagerEvents = soundEventsForTransition(previous, next);
    const checkEvents = soundEventsForTransition(
      previous,
      snapshot(3, view({ players: [player(0), player(1, { hasActed: true })] })),
    );

    expect(wagerEvents.map((event) => event.type)).toEqual(["wager", "fold"]);
    expect(checkEvents.map((event) => event.type)).toEqual(["check"]);
  });

  it("emits win and loss results plus game completion placement", () => {
    const win = soundEventsForTransition(
      snapshot(1),
      snapshot(2, view({ phase: "hand-complete", showdown: showdown(40) })),
    );
    const loss = soundEventsForTransition(
      snapshot(1),
      snapshot(2, view({ phase: "hand-complete", showdown: showdown(-40) })),
    );
    const complete = soundEventsForTransition(
      snapshot(1),
      snapshot(2, view({ phase: "game-complete", finalPlacements: [{ seatId: 0, placement: 1 }] })),
    );

    expect(win).toEqual([expect.objectContaining({ type: "hand-result", result: "win" })]);
    expect(loss).toEqual([expect.objectContaining({ type: "hand-result", result: "loss" })]);
    expect(complete).toEqual([expect.objectContaining({ type: "game-complete", placement: 1 })]);
  });

  it("returns no events for an identical snapshot version", () => {
    const current = snapshot(7, view({ yourTurn: true }));
    expect(soundEventsForTransition(current, current)).toEqual([]);
  });

  it("announces a new hand with a two-card deal and a staggered blind sequence", () => {
    const events = soundEventsForTransition(snapshot(5), snapshot(6, view({ handNumber: 2 })));

    expect(events).toEqual([
      expect.objectContaining({ type: "hand-start", handNumber: 2 }),
      expect.objectContaining({
        type: "wager",
        amount: 10,
        seatId: 0,
        delay: 0,
      }),
      expect.objectContaining({
        type: "wager",
        amount: 20,
        seatId: 1,
        delay: 700,
      }),
    ]);
  });

  it("plays the staggered blind sequence for the game's first hand out of the waiting room", () => {
    const waitingRoom: PokerSoundSnapshot = { version: 1, you: null };
    const events = soundEventsForTransition(waitingRoom, snapshot(2, view({ handNumber: 1 })));

    expect(events.map((event) => event.type)).toEqual(["hand-start", "wager", "wager"]);
    expect(events[1]).toEqual(expect.objectContaining({ amount: 10, delay: 0 }));
    expect(events[2]).toEqual(expect.objectContaining({ amount: 20, delay: 700 }));
  });

  it("plays the showdown reveal plus the win jingle on showdown entry", () => {
    const events = soundEventsForTransition(
      snapshot(1),
      snapshot(2, view({ phase: "showdown", showdown: showdown(180) })),
    );

    expect(events.map((event) => event.type)).toEqual(["showdown", "hand-result"]);
    expect(events[1]).toEqual(expect.objectContaining({ result: "win", netChange: 180 }));
  });

  it("still clacks chips when the same player wagers again later in the street", () => {
    const before = snapshot(
      9,
      view({
        currentBet: 20,
        players: [player(0, { committed: 20, totalCommitted: 20, hasActed: true }), player(1)],
      }),
    );
    const after = snapshot(
      10,
      view({
        currentBet: 60,
        players: [
          player(0, { committed: 60, totalCommitted: 60, hasActed: true }),
          player(1, { committed: 40, totalCommitted: 40, hasActed: true }),
        ],
      }),
    );

    const events = soundEventsForTransition(before, after);
    expect(events.filter((event) => event.type === "wager")).toHaveLength(2);
  });
});