// casegen/evening.js — налаштування вечора злочину:
// де хто був насправді (evening) і що каже (claim), брехуни, спільники
const { chance, pick } = require('./rng');
const { unitBuilding } = require('./district');
const N = require('./names');

function setupEvening(ctx) {
  const { r, citizens, victim, killer, herring, district, scene, coveredB } = ctx;

  for (const c of citizens) {
    c.evening = c.workplace && chance(r, 0.2) ? c.workplace
      : chance(r, 0.2) ? pick(r, ['bar', 'diner']) : unitBuilding(c.home);
    c.liar = chance(r, 0.15);
  }
  victim.evening = scene.building; victim.liar = false;
  killer.evening = scene.building; killer.liar = true;

  herring.evening = pick(r, coveredB.filter(b => b !== scene.building && b !== 'station')) || unitBuilding(herring.home);
  herring.liar = false;

  const otherB = b => pick(r, district.buildings.filter(x => x.id !== b && x.id !== 'station')).id;
  for (const c of citizens) c.claim = c.liar ? otherB(c.evening) : c.evening;
  killer.claim = pick(r, coveredB.filter(b => b !== scene.building && b !== 'station')) || otherB(scene.building);

  for (const c of citizens) {
    if (!c.liar || c === killer) continue;
    c.excuse = pick(r, N.EXCUSES);
    const m2 = citizens.find(o => o !== c && o.id !== victim.id && o.id !== killer.id && o.evening === c.evening);
    c.mate = m2 ? m2.id : null;
  }
}

module.exports = { setupEvening };