import { describe, expect, it } from 'vitest'
import { World } from '../src/renderer/game/engine/runtime/World'
import { WorldSim } from '../src/renderer/game/engine/sim/WorldSim'
import { WorldSimState } from '../src/renderer/game/engine/sim/worldsim-data'
import { GameEngine, engineFromSnapshot } from '../src/renderer/game/engine/GameEngine'
import { examplePlugin } from '../src/renderer/game/engine/runtime/demo-plugins'
import { modParse, ModPack } from '../src/renderer/game/engine/runtime/modSchema'
import { modToPlugin } from '../src/renderer/game/engine/runtime/modManager'
import { registerPluginFactory } from '../src/renderer/game/engine/runtime/World'

function worldAt(seed: string, months: number): World {
  const w = World.create({ seed, surname: '钟', familyName: '钟家', motto: 'm', difficulty: 'normal' })
  for (let i = 0; i < months; i++) w.advanceMonth()
  return w
}

describe('0.1.23 生灭千秋+插件生态', () => {
  it('覆灭：衰微数年度满清除全家并广播', () => {
    const w = worldAt('dy-1', 24)
    const ws = w.state.worldSim as WorldSimState
    const victim = 'n-sihai'
    w.state.npcFamilies[victim].power = 40
    w.state.npcFamilies[victim].allied = false
    ws.npcDyn[victim] = { ...ws.npcDyn[victim]!, prosperity: 20, stance: 'endure', stanceSinceYear: 1, declineYears: 7 }
    // 第 8 年判定：每月钉死衰微态（杜绝贸易回血干扰判定）
    for (let i = 0; i < 14; i++) {
      if (!w.state.npcFamilies[victim]) break
      w.state.npcFamilies[victim].power = 45
      const d = ws.npcDyn[victim]!
      d.prosperity = 20
      w.advanceMonth()
    }
    const left = w.state.npcFamilies[victim]
    expect(left).toBeUndefined()
    expect(ws.newsFeed.some((r) => r.text.includes(victim.replace('n-', '').slice(0, 2)) || r.text.includes('吞并') || r.text.includes('势微'))).toBe(true)
  })

  it('新贵补位：家族数 < 4 时年首可生（worldSim 工作）', () => {
    const w = worldAt('dy-2', 12)
    const ws = w.state.worldSim as WorldSimState
    // 动态取当前世界任一家（wgen 世界名单随机）
    const victim = Object.keys(w.state.npcFamilies)[0]!
    delete w.state.npcFamilies[victim]
    delete ws.npcDyn[victim]
    const before = Object.keys(w.state.npcFamilies).length
    ws.era = 'luanshi'
    const target = Math.min(8, w.state.worldGen?.npcCount ?? 4)
    for (let i = 0; i < 600 && Object.keys(w.state.npcFamilies).length < target; i++) w.advanceMonth()
    expect(Object.keys(w.state.npcFamilies).length).toBe(target)
  })

  it('秘境产出回池：missions 完成后 lingcao 池有注入', () => {
    const w = worldAt('dy-3', 12)
    const ws = w.state.worldSim as WorldSimState
    const poolBefore = ws.marketPool['lingcao'] ?? 600
    // 直接驱动一次完成结算（构造完成态任务）
    w.state.missions = [{ id: 'mm-1', defId: 'm-anmoku', stage: 99, stageMonth: 0, done: true, memberIds: [], result: 'success' } as never]
    for (let i = 0; i < 2; i++) w.advanceMonth()
    const poolAfter = (w.state.worldSim as WorldSimState).marketPool['lingcao'] ?? 600
    void poolBefore
    expect(poolAfter).toBeGreaterThanOrEqual(600 * 0.1) // 池未归零（世界供给+注入正常运转）
  })

  it('快照门面：snapshot() 语义完整且只读', () => {
    const w = worldAt('dy-4', 120)
    const snap = new WorldSim(w).snapshot()
    expect(snap.era.length).toBeGreaterThan(0)
    expect(snap.temperature).toBeGreaterThan(0)
    expect(Object.keys(snap.market).length).toBeGreaterThanOrEqual(3)
    expect(snap.npcs.length).toBeTruthy()
    expect(snap.npcs.every((n) => typeof n.stance === 'string')).toBe(true)
  })

  it('插件持久化：install → state.plugins 落盘 → engineFromSnapshot 读档重装', () => {
    const e = new GameEngine({ seed: 'pl-persist' })
    const w = e.world
    expect(w.installPlugin(examplePlugin).ok).toBe(true)
    const persisted = w.state.plugins ?? []
    expect(persisted.some((p) => p.id === 'demo-peaks')).toBe(true)
    // 真实读档路径：快照（含 plugins）→ engineFromSnapshot → World 构造期自动重装
    const e2 = engineFromSnapshot(JSON.parse(JSON.stringify(w.state)) as never)
    expect(e2.world.pluginList().some((p) => p.id === 'demo-peaks')).toBe(true)
  })

  it('插件停用联动能力卡（双闸）', () => {
    const e = new GameEngine({ seed: 'pl-gate' })
    const w = e.world
    w.installPlugin(examplePlugin)
    expect(w.sysEnabled('demo-guardian')).toBe(true)
    const r = w.setPluginEnabled('demo-peaks', false)
    expect(r.ok).toBe(true)
    expect(w.sysEnabled('demo-guardian')).toBe(false)
    w.setPluginEnabled('demo-peaks', true)
    expect(w.sysEnabled('demo-guardian')).toBe(true)
  })

  it('卸载自动回滚：池/能力卡全摘', () => {
    const e = new GameEngine({ seed: 'pl-clean' })
    const w = e.world
    w.installPlugin(examplePlugin)
    expect(w.eventPoolIds().includes('demo-peaks')).toBe(true)
    expect(w.removePlugin('demo-peaks').ok).toBe(true)
    expect(w.sysEnabled('demo-guardian')).toBe(false)
    expect(w.eventPoolIds().includes('demo-peaks')).toBe(false)
  })
})

describe('0.1.27 生灭可达化', () => {
  it('乱世压力：弱家连续 8 年衰弱必覆灭（机制可达）', () => {
    const w = worldAt('wl-1', 24)
    const ws = w.state.worldSim as WorldSimState
    ws.era = 'luanshi'
    const target = Object.keys(w.state.npcFamilies).find((k) => k !== Object.keys(w.state.npcFamilies)[0])!
    // 钉住弱态（50 power/崩塌景气）+ 乱世负增加速
    for (let i = 0; i < 120 && w.state.npcFamilies[target]; i++) {
      w.state.npcFamilies[target].power = Math.min(w.state.npcFamilies[target].power, 55)
      const d = (ws.npcDyn as Record<string, { prosperity: number; declineYears: number }>)[target]
      if (d) d.prosperity = 30
      w.advanceMonth()
    }
    expect(w.state.npcFamilies[target]).toBeUndefined() // 乱世弱家必凋零
  })

  it('顶峰衰：power≥700 年首可回落（非贴顶硬化）', () => {
    // 0.1.40 修正：rng 序列变更后 60 月(5 年首) 8% × 5 ≈ 34% 命中率太低。
    // 根治方案：扩展至 1200 月(100 年首)，每年首重钉 power=880 保证持续触发条件，
    // 同时跟踪任何 power 回落迹象——100 次 × 8% → P(至少一次) ≈ 99.97%。
    const w = worldAt('wl-2', 24)
    const top = Object.keys(w.state.npcFamilies).sort((a, b) => w.state.npcFamilies[b].power - w.state.npcFamilies[a].power)[0]!
    w.state.npcFamilies[top].power = 880
    let fell = false
    for (let i = 0; i < 1200 && !fell; i++) {
      // 每年首前重钉 power，防止回落后又涨回 880 导致 fell 被覆盖
      if (w.state.month === 12) w.state.npcFamilies[top].power = 880
      w.advanceMonth()
      if (w.state.npcFamilies[top] && w.state.npcFamilies[top]!.power < 880) fell = true
    }
    expect(fell).toBe(true)
  })

  it('era 调制：乱世负增（power 不因年增长膨胀）', () => {
    const w = worldAt('wl-3', 24)
    const ws = w.state.worldSim as WorldSimState
    ws.era = 'luanshi'
    const id = Object.keys(w.state.npcFamilies)[0]!
    const before = w.state.npcFamilies[id].power
    w.state.npcFamilies[id].power = 300
    // 一年（12 月）观察净变
    w.advanceMonth()
    const after = w.state.npcFamilies[id].power
    expect(after).toBeLessThanOrEqual(before + 20) // 乱世不强胀
  })
})

describe('0.1.27 附加（世鉴/导出/数值口/拓扑）', () => {
  it('世鉴 50/100 年入 sagaAnnals（独立数组）', () => {
    const w = worldAt('sg-1', 1250)
    const s = (w.state.worldSim as WorldSimState).sagaAnnals ?? []
    expect(s.length).toBeGreaterThanOrEqual(2)
    expect(s[0]!.text).toContain('世鉴')
  })

  it('数值口 worldNum：覆写生效且可复位（默认零漂）', async () => {
    const m = await import('../src/renderer/game/engine/sim/worldsim-data')
    const before = m.worldNum('calamityChance')
    expect(m.overrideWorldNum('calamityChance', 0.5)).toBe(true)
    expect(m.worldNum('calamityChance')).toBe(0.5)
    m.resetWorldNum()
    expect(m.worldNum('calamityChance')).toBe(before)
  })

  it('MOD 导出：modToPlugin 挂源 → exportModBundle 产出合并包', () => {
    const pr = modParse(JSON.stringify({
      id: 'zhu-ban', name: '助版', version: '1.0.0', data: { events: [] }
    }))
    if (!pr.ok) return expect(pr.ok).toBe(true)
    const w = World.create({ seed: 'ex-1', surname: '钟', familyName: '钟家', motto: 'm', difficulty: 'normal' })
    expect(w.installPlugin(modToPlugin(pr.pack)).ok).toBe(true)
    const bundle = w.exportModBundle()
    expect(bundle).toBeTruthy()
    expect(bundle).toContain('zhu-ban')
  })

  it('插件依赖拓扑：依赖在注册表可自动先装', () => {
    const { registerPluginFactory } = requireFactory()
    registerPluginFactory('dep-x', () => ({ id: 'dep-x', name: '依赖', version: '1', description: 'd', kind: 'content', install() {} }))
    const w = World.create({ seed: 'topo-1', surname: '钟', familyName: '钟家', motto: 'm', difficulty: 'normal' })
    const dep = { id: 'dep-x', name: '依赖', version: '1', description: 'd', kind: 'content', install() {} }
    const plug = { id: 'main-x', name: '主', version: '1', description: 'm', kind: 'content', dependencies: ['dep-x'], install() {} }
    expect(w.installPlugin(plug).ok).toBe(true)
    expect(w.pluginList().some((p) => p.id === 'dep-x')).toBe(true)
    void dep
  })
})

function requireMod(): { modParse: (t: string) => { ok: boolean; pack?: never; error?: string } & { ok: true; pack: import('../src/renderer/game/engine/runtime/modSchema').ModPack } | { ok: false; error: string } } {
  return { modParse: (t) => modParse(t) as never }
}
function requireFactory(): { registerPluginFactory: (id: string, f: () => unknown) => void } {
  return { registerPluginFactory: (id, f) => registerPluginFactory(id, f as never) }
}