// JUMP_TURN_TO feature: DM clicks participant → turn jumps → future NEXT_TURN
// continues from jumped position. Missing feature, not bug.
// Test asserts desired behavior = RED (function doesn't exist).

const shared = require('@ttrpg/shared');
const { makeParticipant, startEncounter, nextTurn } = shared;

function p(id, init) {
  return makeParticipant({ id, name: id, type: 'monster',
    initiative: init, maxHp: 100, currentHp: 100 });
}
function enc(ps) {
  return { name:'t', participants:ps, isStarted:false, isPaused:false,
    round:0, currentTurnParticipantId:null, turnOrderIds:[] };
}

describe('JUMP_TURN_TO: manual turn override', () => {
  test('jump sets currentTurn to target, future nextTurn continues', () => {
    const ps = [p('a',20), p('b',15), p('c',10), p('d',5)];
    let e = enc(ps);
    e = { ...e, ...startEncounter(e).patch };
    // current=a
    e = { ...e, ...shared.jumpTurnTo(e, 'c').patch };
    expect(e.currentTurnParticipantId).toBe('c');
    // next turn continues from c → d
    e = { ...e, ...nextTurn(e).patch };
    expect(e.currentTurnParticipantId).toBe('d');
  });

  test('jump to first stays in same round', () => {
    const ps = [p('a',20), p('b',15), p('c',10)];
    let e = enc(ps);
    e = { ...e, ...startEncounter(e).patch };
    e = { ...e, ...nextTurn(e).patch }; // b
    e = { ...e, ...shared.jumpTurnTo(e, 'a').patch };
    expect(e.round).toBe(1);
    expect(e.currentTurnParticipantId).toBe('a');
  });

  test('jump to invalid id throws', () => {
    const ps = [p('a',20), p('b',15)];
    let e = enc(ps);
    e = { ...e, ...startEncounter(e).patch };
    expect(() => shared.jumpTurnTo(e, 'zzz')).toThrow();
  });
});