/**
 * MOD 管理器：ModPack → CotycPlugin 构造（MOD=插件一等子类）。
 * 全量复用 PluginManager 管线：持久化/启停/双闸/自动回滚。
 */
import { CotycPlugin } from '../kernel/plugin'
import { ModPack, validateMod } from './modSchema'
import { EventDef } from '../../data/events'
import { findEvent } from './Systems/events'
import { World } from './World'
import { WorldGenPools } from '../sim/worldgen'
import { pack as dataPack } from '../../data/registry'
import { removeCalamityByName, overrideWorldNum, resetWorldNum } from '../sim/worldsim-data'
import { removePillRecipe, removeForgeRecipe } from '../../data/items'
import { registerBuildingDef } from '../../data/buildings'
import { registerPostDef } from '../../data/posts'
import { registerAspirationDef } from '../../data/aspirations'
import { registerFormationDef } from '../../data/formations'
import { registerTraitDef } from '../../data/traits'

const DEFAULT_ITEMS = { lingcao: { id: 'lingcao', name: '灵草', kind: 'resource', basePrice: 8, desc: '最常见的修炼辅材，亦是炼丹基础。', icon: '草' },
  lingkuang: { id: 'lingkuang', name: '灵矿', kind: 'resource', basePrice: 12, desc: '铸器与布阵常用矿物。', icon: '矿' },
  beastcore: { id: 'beastcore', name: '兽核', kind: 'resource', basePrice: 30, desc: '妖兽一身的精华，可炼丹炼器。', icon: '核' },
  'pill-qiyuan': { id: 'pill-qiyuan', name: '聚气丹', kind: 'pill', basePrice: 45, desc: '炼气期修士服之，一月修为大增。', icon: '气' },
  'pill-ningyuan': { id: 'pill-ningyuan', name: '凝元丹', kind: 'pill', basePrice: 150, desc: '筑基以上可效，修为增长显著。', icon: '元' },
  'pill-pojing': { id: 'pill-pojing', name: '破境丹', kind: 'pill', basePrice: 480, desc: '冲击瓶颈时的辅助神物，提升突破成功率。', icon: '破' },
  'weapon-fan': { id: 'weapon-fan', name: '凡器', kind: 'artifact', basePrice: 120, desc: '普通铁器，聊胜于无。', icon: '凡' },
  'weapon-qi': { id: 'weapon-qi', name: '法器', kind: 'artifact', basePrice: 450, desc: '蕴灵之器，可引动灵力。', icon: '法' },
  'weapon-ling': { id: 'weapon-ling', name: '灵器', kind: 'artifact', basePrice: 1400, desc: '有灵之器，锋芒隐露。', icon: '灵' },
  'weapon-fa': { id: 'weapon-fa', name: '法宝', kind: 'artifact', basePrice: 3600, desc: '罕世法宝，非金丹不能驾驭。', icon: '宝' } }

function itemsBasePack(): Record<string, unknown> {
  return { ...DEFAULT_ITEMS }
}

function toBuildingDef(b: { id: string; name: string; icon: string; desc: string; kind: 'produce' | 'function'; maxLevel: number; produceExpr?: string | Record<string, string>; upgradeStones?: number; upgradeMineral?: number }) {
  return {
    id: b.id,
    name: b.name,
    icon: b.icon,
    desc: b.desc,
    kind: b.kind,
    maxLevel: Math.min(6, Math.max(1, b.maxLevel ?? 3)),
    produceTable: b.produceExpr ? booleanExprTable(b.produceExpr) : undefined,
    upgradeCost: (L: number) => ({ stones: (b.upgradeStones ?? 80) * Math.pow(1.6, L - 1), lingkuang: Math.round((b.upgradeMineral ?? 8) * L) })
  } as never
}

/** 白名单表达式：'10 * L'（单资源）或 '{"lingcao":"10 * L"}'（多资源对象） */
function booleanExprTable(expr: string | Record<string, string>): (level: number) => Record<string, number> {
  const parsed = typeof expr === 'string'
    ? expr.trim().startsWith('{') ? JSON.parse(expr) : { lingcao: expr }
    : expr
  const entries = Object.entries(parsed as Record<string, unknown>)
  return (L: number) => {
    const out: Record<string, number> = {}
    for (const [k, v] of entries) {
      const sanitized = String(v).replace(/L/g, String(L))
      if (!/^[0-9.\s+\-*/()^]+$/.test(sanitized)) continue
      try {
        const val = Function(`"use strict";return (${sanitized.replace(/\^/g, '**')})`)() as number
        if (Number.isFinite(val)) out[k] = Math.round(val)
      } catch { /* 非法表达式跳过 */ }
    }
    return out
  }
}

/** 安装前检查：事件 id 与核心/已装池冲突 + 范式校验警告 */
const DYNAMIC_PREFIXES = ['ev-raid-', 'ev-trib-', 'ev-tournament-', 'ev-echo-', 'ev-auction', 'ev-centennial', 'ev-feisheng', 'ev-legacypass', 'ev-winterprayer', 'ev-jobai']

export function modPreflight(w: World, pack: ModPack): { ok: boolean; reason?: string; warnings: string[] } {
  const v = validateMod(pack)
  // 权威冲突检测：findEvent（池+动态分支）+ 动态前缀黑名单（防御构造缺口）
  for (const e of pack.data.events ?? []) {
    if (findEvent(e.id, w) || DYNAMIC_PREFIXES.some((p) => e.id.startsWith(p))) {
      return { ok: false, reason: `事件 id 冲突：${e.id}`, warnings: v.warnings }
    }
  }
  return { ok: true, warnings: v.warnings }
}

export function modToPlugin(pack: ModPack): CotycPlugin {
  const plugin: CotycPlugin = {
    id: `mod-${pack.id}`,
    name: `MOD·${pack.name}`,
    version: pack.version,
    author: pack.author ?? 'mod',
    description: pack.description ?? '',
    kind: 'content',
    dependencies: (pack.depends ?? []).map((d) => `mod-${d}`),
    conflicts: (pack.conflicts ?? []).map((c) => `mod-${c}`),
    install(ctx) {
      // 事件池（与核心事件同池聚合；findEvent 查池）
      if (pack.data.events?.length) ctx.addEventPool(`mod-${pack.id}`, pack.data.events)
      // 世界模板（worldgen 池候选——新档参与生成）
      for (const def of pack.data.npcs ?? []) ctx.addNpcTemplate(def)
      // 词库注入（styles/regions/fams/suffixes；带 source 便于精确回滚）
      if (pack.data.worldgen) ctx.addWorldGenPool(pack.data.worldgen, `mod-${pack.id}`)
      // 配方补充
      for (const r of pack.data.pills ?? []) ctx.addPillRecipe(r)
      for (const r of pack.data.forges ?? []) ctx.addForgeRecipe(r)
      // 灾因补充（0.1.26：MOD 灾因进入世界循环）
      for (const c of pack.data.calamities ?? []) {
        ctx.addCalamity(c.name, { brief: c.brief, family: c.family, effect: c.effect })
      }
      // P1-11 worldNum 白名单覆写（0.1.28 接线：仅 WORLDSIM 内键生效，卸载复位）
      for (const [k, v] of Object.entries(pack.data.worldNum ?? {})) {
        overrideWorldNum(k, v)
      }
      // M1-M4（0.1.31）内容面总攻：物品/功法进 Pack（键级合入）；建筑/职事/志向/阵型/性格走双源注册
      if (pack.data.items?.length) {
        const base = itemsBasePack()
        for (const it of pack.data.items) base[it.id] = it
        ctx.overridePack({ items: base as never })
      }
      if (pack.data.techniques?.length) {
        // 语义冲突日志：同 id 功法（mergeAdd 跳过内置——提示玩家谁改了什么）
        const seenT = new Set((dataPack().techniques as Array<{ id: string }>).map((x) => x.id))
        for (const t of pack.data.techniques) if (seenT.has(t.id)) ctx.world.log('info', `[MOD:${pack.id}] 功法 ${t.id} 同 id 已存在（内置优先，新增跳过）。`)
        // 0.1.35 A-6：注入即追踪（与插件绑拆——卸载按 id 摘除注入行）
        const injected = pack.data.techniques.filter((t) => !seenT.has(t.id) && !(pack as unknown as { trackedTech?: Array<string> }).trackedTech?.includes(t.id))
        ;(pack as unknown as { trackedTech: string[] }).trackedTech = [...((pack as unknown as { trackedTech?: string[] }).trackedTech ?? []), ...injected.map((t) => t.id)]
        ctx.mergeAddPack('techniques', pack.data.techniques as never)
      }
      for (const b of pack.data.buildings ?? []) ctx.addBuildingDef(toBuildingDef(b))
      for (const po of pack.data.posts ?? []) ctx.addPostDef({
        id: po.id, name: po.id, effect: { type: po.effectType, value: po.value }, max: po.max, desc: po.desc
      } as never)
      for (const a of pack.data.aspirations ?? []) ctx.addAspirationDef(a as never)
      for (const f of pack.data.formations ?? []) ctx.addFormationDef({ ...f, retreatWound: f.retreatWound ?? 1 } as never)
      for (const t of pack.data.traits ?? []) ctx.addTraitDef({ ...t, danger: t.bonus?.danger ?? 0 } as never)
      // 0.1.34 MOD 数值 patch 层（仅新档生效；卸载复原——mult 0.5~2 / add 实数）
      ctx.world.applyModPatch(pack.data.patch ?? [], `mod-${pack.id}`)
    },
    uninstall(ctx2) {
      ctx2.world.rollbackPatch(`mod-${pack.id}`)
      const td = (pack as unknown as { trackedTech?: string[] }).trackedTech ?? []
      if (td.length) ctx2.world.removeInjectedTechniques(td)
      // 0.1.28 精确回滚：词库池/灾因/配方/世界数值按来源摘除（其余 MOD 共享词条保留）
      WorldGenPools.removePool(`mod-${pack.id}`)
      for (const c of pack.data.calamities ?? []) removeCalamityByName(c.name)
      for (const r of pack.data.pills ?? []) removePillRecipe(r.output)
      for (const r of pack.data.forges ?? []) removeForgeRecipe(r.output)
      if (pack.data.worldNum) for (const k of Object.keys(pack.data.worldNum)) resetWorldNum(k)
    },
    // M1：挂 pack 源——导出/显示用（插件实例可溯源到原始 MOD 包）
    source: pack
  }
  return plugin
}