import type { World } from './world'
import { pack } from '../data/registry'

export function marketPrice(w: World, itemId: string): number {
  const base = pack().items[itemId]?.basePrice ?? 1
  const fam = w.state.family
  const mult = typeof fam.flag['priceMult'] === 'number' ? (fam.flag['priceMult'] as number) : 1
  const mood = fam.reputation >= 40 ? 1.06 : fam.reputation >= 20 ? 1.02 : 0.98
  return Math.max(1, Math.round(base * mult * mood))
}

export function buyItem(w: World, itemId: string, count: number): boolean {
  const fam = w.state.family
  const total = marketPrice(w, itemId) * count
  if (total > fam.stones) return false
  fam.stones -= total
  fam.inventory[itemId] = (fam.inventory[itemId] ?? 0) + count
  return true
}

export function sellItem(w: World, itemId: string, count: number): boolean {
  const fam = w.state.family
  const have = fam.inventory[itemId] ?? 0
  if (have < count) return false
  fam.inventory[itemId] = have - count
  fam.stones += marketPrice(w, itemId) * count
  return true
}

export function buyTechnique(w: World, techId: string, price: number): boolean {
  const fam = w.state.family
  if (fam.techniques.includes(techId)) return false
  if (fam.stones < price) return false
  fam.stones -= price
  fam.techniques.push(techId)
  return true
}

export function techniquePrice(techId: string): number {
  const grade = TECH_GRADE_BASE[techId] ?? 200
  return grade
}

import { TECHNIQUES } from '../data/techniques'

const TECH_GRADE_BASE: Record<string, number> = Object.fromEntries(
  TECHNIQUES.map((t) => [t.id, [120, 300, 700, 1600, 3600][t.grade] ?? 300])
)