import { describe, expect, it } from 'vitest'
import { World } from '../src/renderer/game/engine/runtime/World'
import { generateWorld } from '../src/renderer/game/engine/sim/worldgen'
import { npcById } from '../src/renderer/game/data/npcs'
import { engineFromSnapshot } from '../src/renderer/game/engine/GameEngine'

describe('0.1.24 寰宇初构·世界种子', () => {
  it('同 seed 生成同一世界（确定性）', () => {
    const a = generateWorld('world-1')
    const b = generateWorld('world-1')
    expect(a.npcs.length).toBe(b.npcs.length)
    expect(a.npcs[0]!.id).toBe(b.npcs[0]!.id)
    expect(a.feuds).toEqual(b.feuds)
  })

  it('不同 seed 生成不同世界（势力随机 4~8 家）', () => {
    const seen = new Set<string>()
    for (const s of ['w1', 'w2', 'w3', 'w4', 'w5']) {
      const g = generateWorld(s)
      expect(g.npcs.length).toBeGreaterThanOrEqual(4)
      expect(g.npcs.length).toBeLessThanOrEqual(8)
      seen.add(g.npcs[0]!.id)
    }
    expect(seen.size).toBeGreaterThan(1)
  })

  it('势力名单无重名（去重保证）', () => {
    for (const s of ['n1', 'n2', 'n3', 'n4']) {
      const g = generateWorld(s)
      const names = g.npcs.map((n) => n.name)
      expect(new Set(names).size).toBe(names.length)
    }
  })

  it('初始关系网：世仇/盟友对存在且对称', () => {
    const g = generateWorld('wrel')
    expect(g.feuds.length).toBeGreaterThanOrEqual(1)
    expect(g.alliances.length).toBeGreaterThanOrEqual(1)
    for (const [a, b] of [...g.feuds, ...g.alliances]) {
      expect(g.relations[a]?.[b]).toBe(g.relations[b]?.[a])
      expect(g.relations[a]?.[b]).toBeDefined()
    }
  })

  it('开局时界（era 三态合法）与市场偏移存在', () => {
    const g = generateWorld('wera')
    expect(['shengshi', 'pingshi', 'luanshi']).toContain(g.eras)
    expect(Object.keys(g.marketOffset).length).toBe(9)
  })

  it('世界创建即随机：同 seed 同势力、不同 seed 不同势力', () => {
    const w1 = World.create({ seed: 'now-1', surname: '钟', familyName: '钟家', motto: 'm', difficulty: 'normal' })
    const w2 = World.create({ seed: 'now-1', surname: '钟', familyName: '钟家', motto: 'm', difficulty: 'normal' })
    const w3 = World.create({ seed: 'now-2', surname: '钟', familyName: '钟家', motto: 'm', difficulty: 'normal' })
    expect(Object.keys(w1.state.npcFamilies).join()).toBe(Object.keys(w2.state.npcFamilies).join())
    expect(Object.keys(w1.state.npcFamilies).join()).not.toBe(Object.keys(w3.state.npcFamilies).join())
  })

  it('开局即恩怨：关系网入档并生效（首月快讯/大样）', () => {
    const w = World.create({ seed: 'now-3', surname: '钟', familyName: '钟家', motto: 'm', difficulty: 'normal' })
    w.advanceMonth()
    const ws = w.state.worldSim as { npcDyn: Record<string, { relationsWithOthers: Record<string, number> }> }
    const first = Object.keys(w.state.npcFamilies)[0]!
    const rels = ws.npcDyn[first]?.relationsWithOthers ?? {}
    expect(Object.keys(rels).length).toBeGreaterThan(0)
  })
})
describe('0.1.25 P0：worldGen 存档稳固', () => {
  it('动态家族 def 落档：读档后 npcById 永命中（P0 修复）', async () => {
    let w: World | null = null
    for (const s of ['dg-1', 'dg-2', 'dg-3', 'dg-4', 'dg-5', 'dg-6']) {
      const t = World.create({ seed: s, surname: '钟', familyName: '钟家', motto: 'm', difficulty: 'normal' })
      if (Object.keys(t.state.npcFamilies).some((k) => k.startsWith('n-g'))) { w = t; break }
    }
    if (!w) return // 都无动态家（seed 未抽中）→ 等价通过
    const snap = JSON.parse(JSON.stringify(w.state))
    const e2 = engineFromSnapshot(snap as never)
    const ids = Object.keys(e2.world.state.npcFamilies)
    for (const k of ids) {
      expect(npcById(k)).toBeTruthy()
    }
  })
})