import type { Product } from '@/models/products'
import { getTradeBuyPrice, getTradeSellPrice, lastPrice } from '@/utils/price'
import { isMetalCommodityGroup, isMeltedProductUsingAppPrice, isMeltedTradeGroup, usesQuantityTrade } from '@/utils/productCategories'
import { productPriceAmountFactor } from '@/utils/productDealMethod'

function productUsesLastPriceIfZero(product: Product): boolean {
  return Boolean(product.use_last_price_if_zero)
}

export function resolvePriceOffsetRatio(offsetPercent?: number | null) {
  const offset = Number(offsetPercent ?? 0)
  if (!offset) {
    return 0
  }

  // 5 => 5% ، 0.05 => 5% (اعشاری)
  if (Math.abs(offset) > 0 && Math.abs(offset) < 1) {
    return offset
  }

  return offset / 100
}

export function applyPriceOffsetPercent(basePrice: number, offsetPercent?: number | null) {
  const ratio = resolvePriceOffsetRatio(offsetPercent)
  if (!ratio) {
    return basePrice
  }

  return Math.round(basePrice * (1 + ratio))
}

/** boursecu chart: قیمت + (قیمت × offset) */
export function applyChartPriceOffset(basePrice: number, offsetPercent?: number | null) {
  const ratio = resolvePriceOffsetRatio(offsetPercent)
  if (!ratio) {
    return basePrice
  }

  return Math.round(basePrice + basePrice * ratio)
}

/** قیمت پایه بدون کارمزد — اگر صفر باشد نباید فقط cash_fee به‌عنوان قیمت نمایش داده شود */
export function getProductBaseBuyPrice(product: Product): number {
  if (isMeltedProductUsingAppPrice(product)) {
    const apiPrice = Number(product.price ?? 0)
    const useLast = productUsesLastPriceIfZero(product)

    if (!useLast) {
      const liveBuy = getTradeBuyPrice(lastPrice.value)
      if (liveBuy > 0) {
        return applyPriceOffsetPercent(liveBuy, product.price_offset_percent)
      }
      return 0
    }

    if (apiPrice > 0) {
      return apiPrice
    }

    const liveBuy = getTradeBuyPrice(lastPrice.value)
    if (liveBuy > 0) {
      return applyPriceOffsetPercent(liveBuy, product.price_offset_percent)
    }

    return 0
  }

  if (isMeltedTradeGroup(product.group_type)) {
    return Number(product.price ?? 0)
  }

  if (isMetalCommodityGroup(product.group_type)) {
    return Number(product.price_profit ?? 0) + Number(product.price ?? 0)
  }

  return Number(product.price ?? 0)
}

/** قیمت خرید نمایشی محصول (همان مقداری که در لیست و اکشن‌شیت نشان داده می‌شود) */
export function getProductBuyPrice(product: Product): number {
  const base = getProductBaseBuyPrice(product)
  if (base <= 0) {
    return 0
  }

  const fee = Number(product.cash_fee_buy ?? 0)

  if (
    isMeltedProductUsingAppPrice(product)
    || isMeltedTradeGroup(product.group_type)
    || isMetalCommodityGroup(product.group_type)
    || usesQuantityTrade(product)
  ) {
    return base + fee
  }

  const withFee = base + fee
  return product.direct_price === 0
    ? withFee * productPriceAmountFactor(product)
    : withFee
}

function getProductBaseSellPrice(product: Product): number {
  if (isMeltedProductUsingAppPrice(product)) {
    const apiPrice = Number(product.price ?? 0)
    const useLast = productUsesLastPriceIfZero(product)

    if (!useLast) {
      const liveSell = getTradeSellPrice(lastPrice.value)
      if (liveSell > 0) {
        return applyPriceOffsetPercent(liveSell, product.price_offset_percent)
      }
      return 0
    }

    if (apiPrice > 0) {
      return apiPrice
    }

    const liveSell = getTradeSellPrice(lastPrice.value)
    if (liveSell > 0) {
      return applyPriceOffsetPercent(liveSell, product.price_offset_percent)
    }

    return 0
  }

  if (isMeltedTradeGroup(product.group_type)) {
    return Number(product.price ?? 0)
  }

  return getTradeSellPrice(lastPrice.value)
}

/** قیمت فروش نمایشی محصول آبشده‌ای */
export function getProductSellPrice(product: Product): number {
  const base = getProductBaseSellPrice(product)
  if (base <= 0) {
    return 0
  }

  if (isMeltedProductUsingAppPrice(product) || isMeltedTradeGroup(product.group_type) || usesQuantityTrade(product)) {
    return base - Number(product.cash_fee_sell ?? 0)
  }

  return base
}

export function isProductPriceInactive(product: Product): boolean {
  return getProductBaseBuyPrice(product) <= 0
}

export { isMeltedTradeGroup, isMeltedProductUsingAppPrice } from '@/utils/productCategories'