import { describe, expect, it } from "vitest";
import {
  createSession,
  enterSelection,
  eraseSelection,
  maskValues,
  valueForKey,
} from "../../src/state/session";

describe("play session", () => {
  it("protects givens and toggles values and notes", () => {
    const givens = [5, 0, 0, 0];
    let state = createSession(givens);
    state = enterSelection(state, new Set([0, 1]), "value", 3, givens);
    expect(state.values).toEqual([5, 3, 0, 0]);
    state = enterSelection(state, new Set([2]), "center", 2, givens);
    state = enterSelection(state, new Set([2]), "center", 4, givens);
    expect(maskValues(state.centerMarks[2]!, 4)).toEqual([2, 4]);
    state = eraseSelection(state, new Set([0, 1]), "value", givens);
    expect(state.values).toEqual([5, 0, 0, 0]);
  });

  it("maps keyboard symbols through hexadecimal-sized grids", () => {
    expect(valueForKey("9", 9)).toBe(9);
    expect(valueForKey("A", 16)).toBe(10);
    expect(valueForKey("G", 16)).toBe(16);
    expect(valueForKey("H", 16)).toBeNull();
  });
});