import { describe, expect, it } from 'vitest'
import { World } from '../src/renderer/game/engine/world'
import { matchesCond, applyEventChoice, findEvent, eventRoll } from '../src/renderer/game/engine/systems/events'
import { EVENTS } from '../src/renderer/game/data/events'
import { resetSaveBus, attachLogSink } from './world.helpers'

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

describe('event 条件矩阵', () => {
  it('all/any/not 逻辑嵌套', () => {
    const w = baseWorld('ev-m1')
    const cond = { all: [{ minAdult: 2 }, { any: [{ minRep: 0 }, { maxRep: -1 }] }], not: { minBuilding: { id: 'danfang', level: 1 } } }
    expect(matchesCond(w, cond)).toBe(true)
    const bad = { all: [{ minAdult: 2 }], not: { minAdult: 1 } }
    expect(matchesCond(w, bad)).toBe(false)
  })

  it('数值条件边界（>=/<）', () => {
    const w = baseWorld('ev-m2')
    w.state.family.reputation = 30
    expect(matchesCond(w, { minRep: 30 })).toBe(true)
    expect(matchesCond(w, { minRep: 31 })).toBe(false)
    expect(matchesCond(w, { maxRep: 30 })).toBe(true)
    expect(matchesCond(w, { maxRep: 29 })).toBe(false)
  })

  it('资源与建筑条件', () => {
    const w = baseWorld('ev-m3')
    w.state.family.inventory['lingcao'] = 100
    expect(matchesCond(w, { minResource: { id: 'lingcao', n: 50 } })).toBe(true)
    expect(matchesCond(w, { minResource: { id: 'lingcao', n: 200 } })).toBe(false)
    w.state.family.buildings = { danfang: 2 }
    expect(matchesCond(w, { minBuilding: { id: 'danfang', level: 2 } })).toBe(true)
    expect(matchesCond(w, { minBuilding: { id: 'danfang', level: 3 } })).toBe(false)
    expect(matchesCond(w, { minBuilding: { id: 'lingshou', level: 1 } })).toBe(false)
  })

  it('关系条件和 flag 条件', () => {
    const w = baseWorld('ev-m4')
    const npc = w.state.npcFamilies['n-nulei']
    npc.relation = -60
    expect(matchesCond(w, { relation: { npcId: 'n-nulei', lt: -50 } })).toBe(true)
    expect(matchesCond(w, { relation: { npcId: 'n-nulei', gt: 0 } })).toBe(false)
    w.state.family.flag['tenants'] = true
    expect(matchesCond(w, { flag: { key: 'tenants', eq: true } })).toBe(true)
    expect(matchesCond(w, { flag: { key: 'tenants', eq: false } })).toBe(false)
  })
})

describe('event 生命周期', () => {
  it('once 事件只触发一次', () => {
    const w = baseWorld('ev-o1')
    const onceEv = EVENTS.find((e) => e.once)!
    w.state.completedEvents = [onceEv.id]
    const before = w.state.completedEvents.length
    applyEventChoice(w, onceEv.id, 0)
    // applyEventChoice 会重复检查 completedEvents; actually fire 由 eventRoll 把关；这里验证 once 不重入:
    expect(w.state.completedEvents.length).toBe(before) // 已存在不重复 push
  })

  it('applyChoice 未知事件安全退出并清 pending', () => {
    const w = baseWorld('ev-o2')
    w.state.pendingEvent = 'ev-not-exist'
    applyEventChoice(w, 'ev-not-exist', 0)
    expect(w.state.pendingEvent).toBeUndefined()
  })

  it('选择应用资源/声誉/关系效果并明确记录', () => {
    const w = baseWorld('ev-o3')
    const ev = EVENTS.find((e) => e.id === 'ev-youdao')! // 灵草-5 聚气丹+1
    w.state.family.inventory['lingcao'] = 50
    const p0 = w.state.family.inventory['pill-qiyuan'] ?? 0
    applyEventChoice(w, ev.id, 0)
    expect(w.state.family.inventory['lingcao']).toBe(45)
    expect(w.state.family.inventory['pill-qiyuan']).toBe(p0 + 1)
  })

  it('raid 选项触发实际战斗记录与冷却', () => {
    const w = baseWorld('ev-o4')
    const npc = w.state.npcFamilies['n-nulei']
    npc.relation = -80
    const b0 = w.state.battles.length
    applyEventChoice(w, 'ev-raid-n-nulei', 0)
    expect(w.state.battles.length).toBeGreaterThan(b0)
    expect(w.state.family.flag['raidCD-n-nulei']).toBe(w.state.year)
  })

  it('事件效果不会把成员数削减到非法', () => {
    const w = baseWorld('ev-o5')
    for (const c of Object.values(w.state.members)) {
      if (c.id !== 'x1') c.alive = false
    }
    const mortal = w.state.members['x1']
    mortal.realm = { major: 'spirit', minor: 0 }
    applyEventChoice(w, 'ev-feisheng', 0)
    // stay 分支：成员仍在世，获得仙风特质
    expect(w.state.members['x1'].alive).toBe(true)
    expect(w.state.members['x1'].traits).toContain('fengxian')
  })

  it('飞升离开分支：族内蒙荫与头衔交接', () => {
    const w = baseWorld('ev-o6')
    const strong = w.state.members['x4']
    strong.realm = { major: 'spirit', minor: 0 }
    applyEventChoice(w, 'ev-feisheng', 1)
    expect(strong.alive).toBe(false)
    expect(strong.deathCause).toBe('云游飞升')
    expect(w.state.family.flag['fengFeiBless']).toBe(true)
    // 若继任者存在
    expect(w.state.family.headId).toBeTruthy()
  })

  it('百年庆典仅在第 100 年起火', () => {
    const w = baseWorld('ev-o7')
    w.state.year = 99
    w.state.month = 12
    w.advanceMonth()
    expect(w.state.pendingEvent).toBe('ev-centennial')
    // 已完成后不再重复（completedEvents 注入）
    const w2 = baseWorld('ev-o8')
    w2.state.year = 100
    w2.state.month = 6
    w2.state.completedEvents = ['ev-centennial']
    for (let i = 0; i < 8; i++) w2.advanceMonth()
    expect(w2.state.pendingEvent).not.toBe('ev-centennial')
  })

  it('eventRoll 不投出已完成的 once 事件', () => {
    const w = baseWorld('ev-o9')
    for (const e of EVENTS.filter((x) => x.once)) w.state.completedEvents.push(e.id)
    for (let i = 0; i < 40; i++) {
      w.advanceMonth()
      w.state.pendingEvent = undefined
    }
    const fired = w.state.completedEvents.length === EVENTS.filter((x) => x.once).length
    expect(fired).toBe(true)
    // 没有任何 once 事件被重复发起: 通过 completedEvents 长度恒定同初值
    expect(w.state.chronicle.length).toBeLessThan(40) // 有但不多
  })
})