import { resolveCustomWorldRuleProfile } from '../services/customWorldOwnedSettingLayers';
import { CustomWorldProfile, InventoryItem, WorldType } from '../types';
import { getRuntimeCustomWorldProfile } from './customWorldRuntime';

const RARITY_BASE_VALUES: Record<InventoryItem['rarity'], number> = {
  common: 12,
  uncommon: 24,
  rare: 48,
  epic: 92,
  legendary: 168,
};

function resolveEconomyProfile(
  worldType: WorldType | null,
  customWorldProfile?: CustomWorldProfile | null,
) {
  const profile =
    customWorldProfile ??
    (worldType === WorldType.CUSTOM ? getRuntimeCustomWorldProfile() : null);

  return resolveCustomWorldRuleProfile(profile);
}

export function getCurrencyName(
  worldType: WorldType | null,
  customWorldProfile?: CustomWorldProfile | null,
) {
  const ruleProfile = resolveEconomyProfile(worldType, customWorldProfile);
  if (ruleProfile) {
    return ruleProfile.resourceLabels.currency;
  }

  if (worldType === WorldType.XIANXIA) return '灵石';
  if (worldType === WorldType.WUXIA) return '铜钱';
  return '钱币';
}

export function getInitialPlayerCurrency(
  worldType: WorldType | null,
  customWorldProfile?: CustomWorldProfile | null,
) {
  const ruleProfile = resolveEconomyProfile(worldType, customWorldProfile);
  if (ruleProfile) {
    return ruleProfile.economyProfile.initialCurrency;
  }

  return worldType === WorldType.XIANXIA ? 140 : 160;
}

export function getDiscountTierForAffinity(affinity: number) {
  if (affinity >= 90) return 3;
  if (affinity >= 60) return 2;
  if (affinity >= 30) return 1;
  return 0;
}

export function getInventoryItemValue(item: InventoryItem) {
  if (typeof item.value === 'number' && Number.isFinite(item.value)) {
    return Math.max(8, Math.round(item.value));
  }

  let value = RARITY_BASE_VALUES[item.rarity];

  if (item.tags.includes('weapon')) value += 14;
  if (item.tags.includes('armor')) value += 12;
  if (item.tags.includes('relic')) value += 16;
  if (item.tags.includes('mana')) value += 8;
  if (item.tags.includes('healing')) value += 8;
  if (item.tags.includes('material')) value += 4;
  if (item.category.includes('专属')) value += 10;

  return Math.max(8, value);
}

export function getNpcPurchasePrice(item: InventoryItem, affinity: number) {
  const discountTier = getDiscountTierForAffinity(affinity);
  const discountMultiplier = 1 - (discountTier * 0.08);
  return Math.max(6, Math.round(getInventoryItemValue(item) * discountMultiplier));
}

export function getNpcBuybackPrice(item: InventoryItem, affinity: number) {
  const discountTier = getDiscountTierForAffinity(affinity);
  const buybackMultiplier = 0.4 + (discountTier * 0.06);
  return Math.max(4, Math.round(getInventoryItemValue(item) * buybackMultiplier));
}

export function formatCurrency(
  value: number,
  worldType: WorldType | null,
  customWorldProfile?: CustomWorldProfile | null,
) {
  return `${value} ${getCurrencyName(worldType, customWorldProfile)}`;
}