import { describe, expect, it } from 'vitest'
import { World } from '../src/renderer/game/engine/world'
import { buildReport, verdictLine } from '../src/renderer/game/core/legacyreport'
import { migrateIfNeeded, exportEnvelope, parseImportEnvelope, CURRENT_SCHEMA, APP_ID } from '../src/renderer/game/storage/migrate'
import { FORMATIONS, formationById, FormationId } from '../src/renderer/game/data/formations'
import { resolveEncounter } from '../src/renderer/game/engine/systems/combat'
import { ENEMIES } from '../src/renderer/game/data/secrets'
import { applyEventChoice } from '../src/renderer/game/engine/systems/events'
import { sendMission } from '../src/renderer/game/engine/systems/missions'
import { resetSaveBus, attachLogSink } from './world.helpers'

function baseWorld(seed: string): World {
  const w = World.create({ seed, surname: '酆', familyName: '酆家', motto: 'm', difficulty: 'normal' })
  resetSaveBus()
  attachLogSink(w)
  return w
}

describe('legacyreport 百年报告', () => {
  it('报告含完整序列与死因榜', () => {
    const w = baseWorld('rep-a')
    for (let i = 0; i < 30; i++) w.advanceMonth()
    const r = buildReport(w.state)
    expect(r.years.length).toBeGreaterThan(0)
    expect(r.population.length).toBe(r.years.length)
    expect(r.reputation.length).toBe(r.years.length)
    expect(r.totalYears).toBe(w.state.year)
  })

  it('短家族得到诚实结语', () => {
    const w = baseWorld('rep-b')
    const r = buildReport(w.state)
    expect(verdictLine(r)).toContain('晨雾')
  })

  it('声望峰值触发盛世措辞', () => {
    const w = baseWorld('rep-c')
    w.state.year = 60
    w.state.stats.repPeak = 75
    for (let y = 1; y <= 12; y++) {
      w.state.yearlyReports.push({ year: y, nets: 10, births: 1, deaths: 0, rep: 5 + (y >= 8 ? 70 : y), power: 100 })
    }
    const r = buildReport(w.state)
    // 峰值 75 → 描写盛世
    expect(verdictLine(r)).toMatch(/四方来贺/)
  })

  it('太虚榜首写入结语', () => {
    const w = baseWorld('rep-d')
    w.state.stats.tourneyHistory = [{ year: 40, rank: 1 }]
    for (let y = 1; y <= 8; y++) {
      w.state.yearlyReports.push({ year: y, nets: 0, births: 1, deaths: 0, rep: 5, power: 50 })
    }
    const r = buildReport(w.state)
    expect(verdictLine(r)).toContain('第1名')
  })
})

describe('存档迁移管线', () => {
  it('CURRENT_SCHEMA=2 且 v1→v2 迁移补字段', () => {
    expect(CURRENT_SCHEMA).toBe(2)
    const w = baseWorld('mig-a')
    const asV1 = JSON.parse(JSON.stringify(w.state))
    asV1.schemaVersion = 1
    delete asV1.stats
    const res = migrateIfNeeded(asV1)
    expect(res.ok).toBe(true)
    const s = (res as never as { state: { stats: unknown; schemaVersion: number } }).state
    expect(s.stats).toBeTruthy()
    expect(s.schemaVersion).toBe(2)
  })

  it('未来版本拒绝加载（防误用）', () => {
    const w = baseWorld('mig-b')
    const s = JSON.parse(JSON.stringify(w.state))
    s.schemaVersion = 99
    const res = migrateIfNeeded(s)
    expect(res.ok).toBe(false)
    expect((res as never as { error: { code: string } }).error.code).toBe('TOO_NEW')
  })

  it('导出信封带 appId 与版本；导入旧版可迁移', () => {
    const w = baseWorld('mig-c')
    w.state.schemaVersion = CURRENT_SCHEMA
    const env = JSON.parse(exportEnvelope(w.state))
    expect(env.app).toBe(APP_ID)
    expect(env.schemaVersion).toBe(2)
    const parsed = parseImportEnvelope(JSON.stringify(env))
    expect(parsed.ok).toBe(true)
  })

  it('异 app 拒绝导入', () => {
    const w = baseWorld('mig-d')
    const env = JSON.parse(exportEnvelope(w.state))
    env.app = 'other-game'
    const parsed = parseImportEnvelope(JSON.stringify(env))
    expect(parsed.ok).toBe(false)
  })

  it('损坏 JSON 拒绝导入', () => {
    const res = parseImportEnvelope('not-json-wrapper')
    expect(res.ok).toBe(false)
  })
})

describe('战斗阵型', () => {
  it.each(Object.keys(FORMATIONS).map((k) => [k as FormationId] as const))('%s 阵型定义合法', (id) => {
    const f = FORMATIONS[id]
    expect(f.atk).toBeGreaterThan(0.9)
    expect(f.atk).toBeLessThanOrEqual(1.1)
    expect(f.name.length).toBeGreaterThan(0)
  })

  it('未知阵型回退锋阵', () => {
    expect(formationById('xxx').id).toBe('vanguard')
    expect(formationById(undefined).id).toBe('vanguard')
  })

  it('锋阵强攻：胜率期望更高（多次模拟占比）', () => {
    let vanguardWins = 0
    let serpentWins = 0
    const enemy = ENEMIES.find((e) => e.id === 'e-muche')!
    for (let trial = 0; trial < 40; trial++) {
      const w = baseWorld(`form-a-${trial}`)
      const c = w.state.members['x4']
      c.realm = { major: 'foundation', minor: 1 }
      const r1 = resolveEncounter(w, { title: 't', enemy, risk: 0.78, team: [c], kind: 'scout', year: 1, month: 1, formation: 'vanguard' })
      if (r1.win) vanguardWins++
      const w2 = baseWorld(`form-b-${trial}`)
      const c2 = w2.state.members['x4']
      c2.realm = { major: 'foundation', minor: 1 }
      const r2 = resolveEncounter(w2, { title: 't', enemy, risk: 0.78, team: [c2], kind: 'scout', year: 1, month: 1, formation: 'serpent' })
      if (r2.win) serpentWins++
    }
    expect(vanguardWins).toBeGreaterThan(serpentWins)
  })

  it('战报首行包含阵名', () => {
    const w = baseWorld('form-c')
    const c = w.state.members['x4']
    c.realm = { major: 'core', minor: 0 }
    const res = resolveEncounter(w, {
      title: '阅兵',
      enemy: ENEMIES.find((e) => e.id === 'e-huiyuan')!,
      risk: 0.1,
      team: [c],
      kind: 'scout',
      year: 1,
      month: 1,
      formation: 'echelon'
    })
    expect(res.lines.join(' ')).toContain('雁阵')
  })

  it('squad formation 传递到 mission 记录', () => {
    const w = baseWorld('form-d')
    const ok = sendMission(w, 'm-anmoku', ['x1'], 'serpent')
    expect(ok).toBe(true)
    expect(w.state.missions[0].formation).toBe('serpent')
  })
})

describe('冬至岁祷', () => {
  it('11 月触发岁祷（60% 概率下抽样命中或封缄）', () => {
    const w = baseWorld('win-a')
    w.state.year = 3
    w.state.month = 10
    let fired = false
    for (let i = 0; i < 12; i++) {
      w.advanceMonth()
      if (w.state.pendingEvent === 'ev-winterprayer') {
        fired = true
        break
      }
      w.state.pendingEvent = undefined
    }
    expect(fired).toBe(true) // 0.6 概率在 12 次尝试下几乎必中（月每月 11 一次，12次意味着 years 3-4)
  })

  it('观星：声望+3', () => {
    const w = baseWorld('win-b')
    applyEventChoice(w, 'ev-winterprayer', 0)
    expect(w.state.family.reputation).toBeGreaterThan(5)
  })

  it('祈福：全族修为+2', () => {
    const w = baseWorld('win-c')
    const c = w.state.members['x5']
    c.realm = { major: 'qi', minor: 1 }
    const p0 = c.realmProgress
    c.realmProgress = 20
    applyEventChoice(w, 'ev-winterprayer', 1)
    expect(c.realmProgress).toBeGreaterThanOrEqual(p0)
  })

  it('问卜：吉凶均有确定性分支（连测无越界）', () => {
    for (let i = 0; i < 10; i++) {
      const w = baseWorld(`win-d-${i}`)
      applyEventChoice(w, 'ev-winterprayer', 2)
      expect(w.state.family.stones).toBeGreaterThanOrEqual(760) // 800±60 → ≥740? 800-40=760
      expect(w.state.family.stones).toBeLessThanOrEqual(860)
      expect(w.state.family.flag['prayerAsk']).toBeUndefined()
    }
  })
})