import { describe, it, expect, beforeAll, afterAll } from "vitest";
import { startTestServer, createBoard, join, type TestServer } from "./helpers.js";

let server: TestServer;
beforeAll(async () => {
  server = await startTestServer();
});
afterAll(async () => {
  await server.close();
});

const myCount = (state: { votes: { targetId: string; participantId: string; count: number }[] }, targetId: string) =>
  state.votes
    .filter((v) => v.targetId === targetId && v.participantId === "alice")
    .reduce((s, v) => s + v.count, 0);

describe("Multivoto", () => {
  it("apila votos en el mismo ítem hasta el cupo y deja quitar", async () => {
    const board = await createBoard(server.url, { votesPerUser: 3 }); // allowMultiVote por defecto: true
    const alice = await join(server.url, board.boardId, "alice", "Alice");
    const colId = alice.last!.columns[0].id;
    alice.emit("note:add", { columnId: colId, text: "favorita" });
    const noteId = (await alice.waitFor((s) => s.notes.length === 1)).notes[0].id;

    alice.emit("vote:add", { targetType: "note", targetId: noteId });
    alice.emit("vote:add", { targetType: "note", targetId: noteId });
    alice.emit("vote:add", { targetType: "note", targetId: noteId });
    const stacked = await alice.waitFor((s) => myCount(s, noteId) === 3);
    expect(myCount(stacked, noteId)).toBe(3);

    // 4º voto: cupo agotado, no sube
    alice.emit("vote:add", { targetType: "note", targetId: noteId });
    await new Promise((r) => setTimeout(r, 200));
    expect(myCount(alice.last!, noteId)).toBe(3);

    // quitar uno
    alice.emit("vote:remove", { targetId: noteId });
    const afterRemove = await alice.waitFor((s) => myCount(s, noteId) === 2);
    expect(myCount(afterRemove, noteId)).toBe(2);

    alice.close();
  });

  it("con allowMultiVote=false no se puede apilar en el mismo ítem", async () => {
    const board = await createBoard(server.url, { votesPerUser: 5 });
    const alice = await join(server.url, board.boardId, "alice", "Alice");
    alice.emit("board:update", { allowMultiVote: false, moderatorToken: board.moderatorToken });
    await alice.waitFor((s) => s.allowMultiVote === false);

    const colId = alice.last!.columns[0].id;
    alice.emit("note:add", { columnId: colId, text: "uno" });
    const noteId = (await alice.waitFor((s) => s.notes.length === 1)).notes[0].id;

    alice.emit("vote:add", { targetType: "note", targetId: noteId });
    alice.emit("vote:add", { targetType: "note", targetId: noteId });
    const after = await alice.waitFor((s) => myCount(s, noteId) >= 1);
    await new Promise((r) => setTimeout(r, 200));
    expect(myCount(after, noteId)).toBe(1);

    alice.close();
  });
});