import { describe, expect, test } from "bun:test"
import { RoomManager, type BlindtestTrack } from "../../../rooms"
import type { RoundContext } from "../../round"
import { BlindtestRound } from "./blindtest-round"
import { prepareBlindtestForRoom } from "./pool"
import { fuzzyMatch, normalize } from "../../match"

function track(submittedBy: string): BlindtestTrack {
  return {
    id: "t1",
    youtubeId: "abc12345678",
    url: "https://youtu.be/abc12345678",
    title: "The Legend of Zelda Main Theme",
    artist: "Koji Kondo",
    submittedBy,
  }
}

function ctxFor(
  room: ReturnType<RoomManager["create"]>["room"],
  t: BlindtestTrack,
  mode: "title_artist" | "who_added" | "mixed"
): RoundContext {
  room.settings.blindtestMode = mode
  return {
    room,
    djId: null,
    votes: new Map(),
    startedAt: 0,
    endsAt: 10_000,
    data: { track: t },
  }
}

describe("match", () => {
  test("normalize retire accents/ponctuation/casse", () => {
    expect(normalize("Pokémon: Rouge & Bleu!")).toBe("pokemon rouge bleu")
  })
  test("fuzzyMatch tolère fautes et réponses partielles", () => {
    expect(fuzzyMatch("zelda", "The Legend of Zelda")).toBe(true)
    expect(fuzzyMatch("koji kondo", "Koji Kondo")).toBe(true)
    expect(fuzzyMatch("mario", "The Legend of Zelda")).toBe(false)
  })
})

describe("BlindtestRound", () => {
  test("start : le DJ est un humain connecté (le contributeur peut tomber DJ)", () => {
    const rooms = new RoomManager()
    const { room, player: a } = rooms.create("Alice", "sa")
    const { player: b } = rooms.join(room.code, "Bob", "sb")
    room.blindtestTracks = [track(a.id)]
    prepareBlindtestForRoom(room)

    const round = new BlindtestRound()
    const start = round.start(room)
    // N'importe quel humain (Alice incluse), jamais un bot ni null.
    expect([a.id, b.id]).toContain(start.djId!)
    expect(start.payload).toEqual({ trackId: "t1", youtubeId: "abc12345678" })
  })

  test("start : un bot n'est jamais DJ", () => {
    const rooms = new RoomManager()
    const { room, player: a } = rooms.create("Alice", "sa")
    rooms.addBot(room)
    rooms.addBot(room)
    room.blindtestTracks = [track(a.id)]
    prepareBlindtestForRoom(room)

    const round = new BlindtestRound()
    // Alice est la seule humaine → DJ forcément Alice (les bots sont exclus).
    expect(round.start(room).djId).toBe(a.id)
  })

  test("who_added : le contributeur gagne par tromperie (mauvaises devinettes)", () => {
    const rooms = new RoomManager()
    const { room, player: a } = rooms.create("Alice", "sa")
    const { player: b } = rooms.join(room.code, "Bob", "sb")
    const { player: c } = rooms.join(room.code, "Carol", "sc")
    const t = track(a.id) // Alice = contributrice/DJ
    const round = new BlindtestRound()
    const ctx = ctxFor(room, t, "who_added")
    round.submitAnswer(ctx, b.id, { guessedPlayerId: c.id }) // faux
    round.submitAnswer(ctx, c.id, { guessedPlayerId: a.id }) // juste
    round.submitAnswer(ctx, a.id, { guessedPlayerId: b.id }) // contributrice : non scorée
    const deltas = round.score(ctx)
    // Carol devine juste → 100 ; Alice trompe Bob (1 mauvaise devinette) → 50
    expect(deltas).toContainEqual({ playerId: c.id, delta: 100 })
    expect(deltas).toContainEqual({ playerId: a.id, delta: 50 })
    expect(deltas.find((d) => d.playerId === b.id)).toBeUndefined()
  })

  test("who_added : points si on devine le bon contributeur", () => {
    const rooms = new RoomManager()
    const { room, player: a } = rooms.create("Alice", "sa")
    const { player: b } = rooms.join(room.code, "Bob", "sb")
    const t = track(a.id)
    const round = new BlindtestRound()
    const ctx = ctxFor(room, t, "who_added")
    round.submitAnswer(ctx, b.id, { guessedPlayerId: a.id }) // juste
    const deltas = round.score(ctx)
    expect(deltas).toEqual([{ playerId: b.id, delta: 100 }])
  })

  test("title_artist : 60 titre + 40 artiste, fuzzy", () => {
    const rooms = new RoomManager()
    const { room, player: a } = rooms.create("Alice", "sa")
    const { player: b } = rooms.join(room.code, "Bob", "sb")
    const t = track(a.id)
    const round = new BlindtestRound()
    const ctx = ctxFor(room, t, "title_artist")
    round.submitAnswer(ctx, b.id, { title: "zelda", artist: "koji kondo" })
    const { perPlayerResult } = round.reveal(ctx)
    expect(perPlayerResult[b.id]).toMatchObject({
      titleCorrect: true,
      artistCorrect: true,
      points: 100,
    })
    expect(round.score(ctx)).toEqual([{ playerId: b.id, delta: 100 }])
  })

  test("le contributeur ne marque pas sur son propre titre", () => {
    const rooms = new RoomManager()
    const { room, player: a } = rooms.create("Alice", "sa")
    const t = track(a.id)
    const round = new BlindtestRound()
    const ctx = ctxFor(room, t, "who_added")
    round.submitAnswer(ctx, a.id, { guessedPlayerId: a.id })
    expect(round.score(ctx)).toEqual([])
  })

  test("reveal expose le titre, l'artiste et le contributeur", () => {
    const rooms = new RoomManager()
    const { room, player: a } = rooms.create("Alice", "sa")
    const t = track(a.id)
    const round = new BlindtestRound()
    const ctx = ctxFor(room, t, "title_artist")
    const { truth } = round.reveal(ctx)
    expect(truth.submittedBy).toBe(a.id)
    expect(truth.submittedByName).toBe("Alice")
    expect(truth.title).toBe("The Legend of Zelda Main Theme")
  })
})