import { World, WorldEventBus } from '../src/renderer/game/engine/runtime/World'
import { LogItem, ChronicleEntry, BattleLog } from '../src/renderer/game/types/domain'

const sinks: Set<WorldEventBus> = new Set()

resetSaveBus()
export function resetSaveBus(): void {
  sinks.clear()
}

export function attachLogSink(w: World): void {
  const bus: WorldEventBus = {
    onLog: () => undefined,
    onChronicle: () => undefined,
    onBattle: () => undefined,
    onPendingEvent: () => undefined,
    onGameOver: () => undefined
  }
  sinks.add(bus)
  w.out.push(bus)
}

/** 取当前世界 NPC id：prefer 命中则用之（多为老牌 id），缺失取任一家（wgen 世界名单随机） */
export function anyNpc(w: import('./../src/renderer/game/engine/runtime/World').World, prefer?: string[]): string {
  const ids = Object.keys(w.state.npcFamilies)
  const hit = prefer?.find((p) => ids.includes(p))
  return hit ?? ids[0]!
}