export interface NpcDynamics {
  /** 宗主姓名快照（换代时更新） */
  leaderName: string
  leaderRealmIdx: number
  leaderAge: number
  /** 演化旗标 */
  lastEvent: string
  lastEventYear: number
  relationsWithOthers: Record<string, number>
}

export interface SecretQi {
  qi: number
  peak: number
}

export interface WorldSimState {
  /** 世界库存池（资源循环） */
  marketPool: Record<string, number>
  /** NPC 动力学 */
  npcDyn: Record<string, NpcDynamics>
  /** 秘境灵气条 */
  secretQi: Record<string, number>
  /** 灵气潮汐（0-100 全局系数） */
  tide: number
  tideDir: 1 | -1
  tideTicks: number
  /** 灾年（当年灾因 id） */
  calamity?: string
  calamityYear: number
  /** 天下快讯（滚动 N=120） */
  newsFeed: { year: number; month: number; src: string; text: string }[]
  lastNewsMonth: number
  /** NPC 换代计数 */
  npcSuccessions: number
}

export function makeWorldSimState(): WorldSimState {
  return {
    marketPool: { lingcao: 600, lingkuang: 300, beastcore: 80, 'pill-qiyuan': 90, 'pill-ningyuan': 40 },
    npcDyn: {},
    secretQi: {},
    tide: 0.5,
    tideDir: 1,
    tideTicks: 0,
    calamityYear: -99,
    newsFeed: [],
    lastNewsMonth: -99,
    npcSuccessions: 0
  }
}

/** 市场基准库存（单一权威：WorldSim 再平衡 / Market 行情 / brief 图标 三方共用） */
export const POOL_BASE: Record<string, number> = {
  lingcao: 600,
  lingkuang: 300,
  beastcore: 80,
  'pill-qiyuan': 90,
  'pill-ningyuan': 40
}

/** 世界演化参数表（全部可调） */
export const WORLDSIM = {
  marketDriftRate: 0.03,
  marketRebalance: 0.1,
  priceFloor: 0.55,
  priceCeil: 2.3,
  tideCycle: 72, // 月周期（6年）
  tideMin: 0.65,
  tideMax: 1.35,
  secretRecover: 4,
  secretConsume: 0,
  calamityChance: 0.18,
  calamities: ['旱灾', '涝灾', '蝗灾', '疫病', '兽潮', '寒潮'] as const,
  npcEventChance: 0.05,
  newsEvery: 24, // 月
  newsKeep: 120
}

export type CalamityName = (typeof WORLDSIM.calamities)[number]

/** 灾因 → 资源方向 */
export const CALAMITY_EFFECT: Record<CalamityName, Partial<Record<string, number>>> = {
  旱灾: { lingcao: -0.3 },
  涝灾: { lingcao: -0.2, lingkuang: -0.1 },
  蝗灾: { lingcao: -0.45 },
  疫病: { beastcore: -0.25 },
  兽潮: { beastcore: 0.3 },
  寒潮: { lingcao: -0.2, beastcore: -0.15 }
}