// Tests du choix de la partie et du match, sans navigateur : réglages de
// l'écran « Nouvelle partie », correspondance des niveaux avec ceux de
// GNU Backgammon, résumé d'une partie de match enregistrée, adaptateur du
// moteur (Match ID d'un match) sur le vrai moteur.
//
// Copyright (C) 2026 les auteurs d'Ustagammon.
// Licence : GPLv3 ou ultérieure (voir LICENSE).

import assert from "node:assert/strict";
import { test } from "node:test";
import { Game } from "../src/domain/game/game.js";
import { COMPUTER_LEVELS, computerLevelOf, ENGINE_LEVELS } from "../src/domain/game/level.js";
import { firstGameOf, MATCH_LENGTHS, nextGameOf } from "../src/domain/game/match.js";
import { START_POSITION } from "../src/domain/game/position.js";
import { fixedDice } from "../src/domain/game/roll.js";
import { levelOf, summarizeGame } from "../src/domain/game/saved-game.js";
import { chosenGame, DEFAULT_SETTINGS, parseSettings } from "../src/ui/settings.js";
import { loadNodeEngine } from "./support/node-engine.js";

test("les six niveaux montrés au joueur, du plus faible au plus fort, et leur niveau de gnubg", () => {
    assert.deepEqual(COMPUTER_LEVELS, [
        "beginner",
        "amateur",
        "intermediate",
        "advanced",
        "expert",
        "champion",
    ]);
    assert.deepEqual(
        COMPUTER_LEVELS.map((level) => ENGINE_LEVELS[level]),
        ["beginner", "casual", "intermediate", "advanced", "0ply", "2ply"],
    );
    assert.equal(computerLevelOf("casual"), "amateur");
    assert.equal(computerLevelOf("3ply"), null);
});

test("réglages de la nouvelle partie : partie libre, Intermédiaire, conseil activé par défaut ; valeurs illisibles ignorées", () => {
    assert.equal(DEFAULT_SETTINGS.gameKind, "free");
    assert.equal(DEFAULT_SETTINGS.level, "intermediate");
    assert.equal(DEFAULT_SETTINGS.masterAdvice, true);
    // Réglages d'avant l'étape 1c : les valeurs par défaut.
    const old = parseSettings('{"vibrations": false, "gamesStarted": 4}');
    assert.equal(old.gameKind, "free");
    assert.equal(old.matchLength, 5);
    assert.equal(old.level, "intermediate");
    const saved = parseSettings(
        '{"gameKind": "match", "matchLength": 7, "level": "champion", "masterAdvice": false}',
    );
    assert.deepEqual(
        [saved.gameKind, saved.matchLength, saved.level, saved.masterAdvice],
        ["match", 7, "champion", false],
    );
    const wrong = parseSettings('{"gameKind": "x", "matchLength": 4, "level": "4ply"}');
    assert.deepEqual([wrong.gameKind, wrong.matchLength, wrong.level], ["free", 5, "intermediate"]);
    assert.deepEqual([...MATCH_LENGTHS], [3, 5, 7, 11]);
});

test("la partie choisie : le niveau de gnubg, et la première partie d'un match à 0-0", () => {
    assert.deepEqual(chosenGame(DEFAULT_SETTINGS), { level: "intermediate" });
    assert.deepEqual(chosenGame({ ...DEFAULT_SETTINGS, gameKind: "match", level: "expert" }), {
        level: "0ply",
        match: { length: 5, score: { player: 0, computer: 0 }, crawford: false },
    });
    assert.throws(() => firstGameOf(0), /longueur/);
    const match = firstGameOf(3);
    assert.equal(
        nextGameOf(match, { score: { player: 3, computer: 0 }, over: true, crawford: false }),
        null,
    );
    assert.deepEqual(
        nextGameOf(match, { score: { player: 2, computer: 0 }, over: false, crawford: true }),
        { length: 3, score: { player: 2, computer: 0 }, crawford: true },
    );
});

test("le résumé d'une partie de match enregistrée porte le match ; celui d'une partie libre n'en a pas", async () => {
    const engine = await loadNodeEngine();
    const times = { startedAt: 1, updatedAt: 2 };
    const free = Game.start(engine, { dice: fixedDice([3, 1]), level: "beginner" });
    assert.equal(levelOf(free.journal), "beginner");
    const freeSummary = summarizeGame("a", free.journal, { level: "beginner" }, times);
    assert.equal(freeSummary.match, undefined);
    assert.equal(freeSummary.level, "beginner");

    const match = Game.start(engine, {
        dice: fixedDice([3, 1]),
        level: "2ply",
        match: { length: 5, score: { player: 4, computer: 2 }, crawford: true },
    });
    const summary = summarizeGame("b", match.journal, { level: levelOf(match.journal) }, times);
    assert.deepEqual(summary.match, {
        length: 5,
        score: { player: 4, computer: 2 },
        crawford: true,
        over: false,
    });
});

test("adaptateur : le Match ID d'un match code la longueur, le score vu du joueur au trait et Crawford", async () => {
    const engine = await loadNodeEngine();
    const id = await engine.encodeMatch({
        value: 1,
        owner: "centered",
        match: { length: 5, score: { onRoll: 4, opponent: 2 }, crawford: true },
    });
    const decoded = await engine.decodeMatch(id);
    assert.deepEqual(
        [decoded.matchLength, decoded.score, decoded.crawford, decoded.jacoby],
        [5, [4, 2], true, false],
    );
    // En partie Crawford, le moteur refuse le videau au joueur au trait.
    const crawford = await engine.cubeDecision(
        START_POSITION,
        {
            value: 1,
            owner: "centered",
            match: { length: 5, score: { onRoll: 2, opponent: 4 }, crawford: true },
        },
        0,
    );
    assert.equal(crawford.available, false);
    const after = await engine.matchAfterGame(
        { length: 5, score: { onRoll: 3, opponent: 2 }, crawford: false },
        "onRoll",
        1,
    );
    assert.deepEqual(after, { score: { onRoll: 4, opponent: 2 }, over: false, crawford: true });
});