import test from "node:test";
import assert from "node:assert/strict";
import {
  LEVELS,
  WORLD,
  createBottleTypes,
  createLevelState,
  createSeededRandom,
  tryPickBottle,
  tryDropBottle,
} from "../src/gameLogic.js";

test("Level-Skalierung stimmt", () => {
  assert.deepEqual(LEVELS, [
    { types: 2, bottles: 10 },
    { types: 4, bottles: 20 },
    { types: 8, bottles: 40 },
    { types: 16, bottles: 80 },
  ]);
});

test("Flaschensorten sind eindeutig", () => {
  const types = createBottleTypes(16);
  const ids = new Set(types.map((t) => t.id));
  assert.equal(types.length, 16);
  assert.equal(ids.size, 16);
});

test("Level wird mit korrekter Anzahl und ohne ungueltige Positionen erzeugt", () => {
  const rng = createSeededRandom(1234);
  const state = createLevelState(2, rng);
  assert.equal(state.bottles.length, 40);
  assert.equal(state.types.length, 8);
  state.bottles.forEach((b) => {
    assert.ok(b.x > 0 && b.x < WORLD.cols - 1);
    assert.ok(b.y > 0 && b.y < WORLD.rows - 1);
  });
});

test("Falsches Ablegen wird erkannt", () => {
  const rng = createSeededRandom(2);
  const state = createLevelState(0, rng);
  const firstBottle = state.bottles[0];
  state.player = { x: firstBottle.x, y: firstBottle.y };
  const pick = tryPickBottle(state);
  assert.equal(pick.ok, true);

  const wrongCrate = state.crates.find((c) => c.typeId !== state.carrying.typeId);
  state.player = { x: wrongCrate.x, y: wrongCrate.y };
  const drop = tryDropBottle(state);
  assert.equal(drop.ok, false);
  assert.equal(drop.reason, "falsch");
});