import type { World } from '../engine/world'

export interface GuideStep {
  id: string
  title: string
  hint: string
  reward: string
}

export const GUIDE_STEPS: GuideStep[] = [
  { id: 'intro', title: '认识你的族人', hint: '点开「宗族」页中任意成员，看看他的灵根、境界与禀性。', reward: '感悟 +20 灵石' },
  { id: 'cultivate', title: '点一人闭关', hint: '在成员详情中点「闭关」，让他专心致志地修行。', reward: '修为小成' },
  { id: 'build', title: '营建一项产业', hint: '到「领地」页营建一座【灵田】或【坊市】，让家中有进项。', reward: '家族起步' },
  { id: 'progress', title: '推进一个月', hint: '点顶部「推进一月」，看族人锻、金堂响、家书至。', reward: '正式开族' }
]

export interface GuideState {
  step: number
  done: boolean
}

export function computeGuide(w: World): GuideState {
  const step = w.state.family.flag['guideStep'] as number | undefined ?? 0
  return { step, done: step >= GUIDE_STEPS.length }
}

export function guideAdvance(w: World, targetStep: number): number {
  const cur = w.state.family.flag['guideStep'] as number | undefined ?? 0
  if (targetStep > cur) {
    w.state.family.flag['guideStep'] = Math.min(GUIDE_STEPS.length, targetStep)
  }
  return w.state.family.flag['guideStep'] as number
}