import type { Product } from '@/models/products'
import type { UserWalletLine } from '@/models/wallet'
import type { ProductFile } from '@/utils/file'
import type { WalletInventoryCard, WalletMetalTotal } from '@/models/walletAssets'
import { getFileUrl } from '@/utils/file'
import { isCountBasedProduct, getProductQuantityUnit, type ProductUnitSource } from '@/utils/productDealMethod'
import { isMeltedTradeGroup, normalizeProductGroupType, LEGACY_GROUP_KATOD } from '@/utils/productCategories'
import defaultImg from '@/assets/img/defaultAbshodeh.svg'
import goyImg from '@/assets/img/goyImg.svg'
import mokaabImg from '@/assets/img/mokaabImg.svg'
import sekkeImg from '@/assets/img/sekkeImg.svg'
import mesImg from '@/assets/img/mesImg.jpg'
import noghrehImg from '@/assets/img/noghrehImg.webp'
import parsianImg from '@/assets/img/parsianImg.svg'

export const METAL_GOLD = 1
export const METAL_SILVER = 2
export const METAL_COPPER = 3

const GROUP_DEFAULT_IMAGES: Record<string, string> = {
  گوی: goyImg,
  مکعب: mokaabImg,
  سکه: sekkeImg,
  مس: mesImg,
  [LEGACY_GROUP_KATOD]: mesImg,
  نقره: noghrehImg,
  'سکه پارسیان': parsianImg,
  طلا: defaultImg,
  آبشده: defaultImg,
}

export function getMetalLabel(metalId: number): string {
  switch (metalId) {
    case METAL_GOLD:
      return 'طلا'
    case METAL_SILVER:
      return 'نقره'
    case METAL_COPPER:
      return 'مس'
    default:
      return 'فلز'
  }
}

export function getTotalMetalLabel(metalId: number): string {
  return `کل دارایی ${getMetalLabel(metalId)}`
}

export function sumInventoryCardsWeight(
  cards: Array<{ metal_id?: number; quantity?: number }>,
  metalId: number
): number {
  return cards
    .filter((card) => Number(card.metal_id) === metalId)
    .reduce((sum, card) => sum + Number(card.quantity ?? 0), 0)
}

/** ردیف‌های جزئی action sheet — فقط محصولاتی که show_in_assets روشن است. */
export function assetSheetInventoryCards<T extends { metal_id?: number; show_in_assets?: boolean }>(
  cards: T[],
  metalId?: number
): T[] {
  return cards.filter((card) => {
    if (!card.show_in_assets) {
      return false
    }
    if (metalId == null) {
      return true
    }
    return Number(card.metal_id) === metalId
  })
}

/** همه کارت‌های صفحه دارایی‌ها — بدون فیلتر show_in_assets. */
export function fundPageInventoryCards<T>(cards: T[]): T[] {
  return cards.filter((card) => Number((card as { quantity?: number }).quantity ?? 0) > 0)
}

export function resolveSummaryMetalWeight(
  metal: { total_weight: number },
  _cards?: Array<{ metal_id?: number; quantity?: number }>
): number {
  return Number(metal.total_weight ?? 0)
}

/** متن توضیح مودال دارایی فلزی — بر اساس metal_totals سرور، بدون هاردکد طلا */
export function formatMetalAssetsInfoText(metal: WalletMetalTotal): string {
  const unit = metal.unit || 'گرم'
  return `${metal.label}: مجموع کیف محصولات (${metal.product_weight} ${unit}) + موجودی کیف اصلی (${metal.melted_weight} ${unit})`
}

function formatRialNumber(value: number): string {
  return Math.round(value).toString().replace(/\B(?=(\d{3})+(?!\d))/g, ',')
}

/** متن توضیح مودال دارایی ریالی — cash_wallet + assets_rial_value */
export function formatRialAssetsInfoText(cashWallet: number, assetsRialValue: number): string {
  return `مجموع کیف پول ریالی (${formatRialNumber(cashWallet)} ریال) + معادل ریالی محصولات (${formatRialNumber(assetsRialValue)} ریال)`
}

export function formatInventoryCardValue(card: {
  quantity?: number
  unit?: string
  display_type?: string
}): string {
  const quantity = Number(card.quantity ?? 0)
  const unit = card.unit ?? (card.display_type === 'count' ? 'عدد' : 'گرم')
  return `${quantity} ${unit}`
}

export function findProductInventoryCard(
  cards: WalletInventoryCard[],
  productId?: number | null
): WalletInventoryCard | undefined {
  if (!productId) {
    return undefined
  }

  return cards.find((item) => Number(item.product_id) === Number(productId))
}

/**
 * موجودی کیف یک محصول از inventory_cards.
 * fallback: پروژه‌های ساختار قدیم (مثل گلد علی) کیف محصول ندارند و موجودی روی gold کیف اصلی است.
 */
export function getProductInventoryQuantity(
  cards: WalletInventoryCard[],
  productId?: number | null,
  mainWalletGold?: number | null
): number {
  const card = findProductInventoryCard(cards, productId)
  if (card) {
    return Number(card.quantity ?? 0)
  }

  return Number(mainWalletGold ?? 0)
}

/** برچسب موجودی کیف محصول — برای فرم خرید/فروش */
export function formatProductWalletBalanceText(
  product: { id?: number; title?: string | null; unit?: string | null; group_type?: string | null } | null | undefined,
  cards: WalletInventoryCard[] = [],
  mainWalletGold?: number | null
): string {
  const card = findProductInventoryCard(cards, product?.id)
  const quantity = card ? Number(card.quantity ?? 0) : Number(mainWalletGold ?? 0)
  const unit = card?.unit ?? getProductQuantityUnit(product)
  const title = product?.title?.trim() || 'محصول'

  return `موجودی کیف ${title}: ${quantity} ${unit}`
}

export function isSingleMetalCatalog(metalIds: number[]): boolean {
  return metalIds.length === 1
}

export function getCatalogMetalIds(products?: Product[] | null): number[] {
  const ids = new Set<number>()
  for (const product of products ?? []) {
    const metalId = Number(product.metal_id)
    if (metalId > 0) {
      ids.add(metalId)
    }
  }
  return Array.from(ids).sort((a, b) => a - b)
}

export function catalogHasCountBasedProducts(products?: Product[] | null): boolean {
  return (products ?? []).some((product) => isCountBasedProduct(product))
}

export function catalogHasMeltedProducts(products?: Product[] | null): boolean {
  return (products ?? []).some((product) => isMeltedTradeGroup(product.group_type))
}

export function enrichInventoryCardsWithCatalog<T extends { product_id?: number; file?: ProductFile | null }>(
  cards: T[],
  catalog: Product[]
): T[] {
  return cards.map((card) => {
    const fromCatalog = catalog.find((product) => product.id === card.product_id)
    if (!fromCatalog) {
      return card
    }

    return {
      ...card,
      file: card.file ?? fromCatalog.file ?? null,
    }
  })
}

export function enrichInventoryWithCatalog<T extends { id?: number }>(
  items: T[],
  catalog: Product[]
): T[] {
  return items.map((item) => {
    const fromCatalog = catalog.find((product) => product.id === item.id)
    if (!fromCatalog) {
      return item
    }

    const current = item as T & Product
    return {
      ...fromCatalog,
      ...current,
      wallet: current.wallet ?? fromCatalog.wallet,
      file: current.file ?? fromCatalog.file,
      metal_id: current.metal_id ?? fromCatalog.metal_id,
      group_type: current.group_type ?? fromCatalog.group_type,
    }
  })
}

export function getProductDisplayImage(product?: {
  group_type?: string | null
  title?: string | null
  file?: ProductFile | null
  img?: string | null
} | null): string {
  const fileUrl = getFileUrl(product?.file)
  if (fileUrl) {
    return fileUrl
  }

  if (product?.img && /^https?:\/\//i.test(product.img)) {
    return product.img
  }

  const group = normalizeProductGroupType(product?.group_type)
  if (group && GROUP_DEFAULT_IMAGES[group]) {
    return GROUP_DEFAULT_IMAGES[group]
  }

  return defaultImg
}

type InventoryProduct = ProductUnitSource & {
  metal_id?: number | null
  title?: string | null
  wallet?: { gold?: number | null } | null
}

export function sumCountBasedInventory(products?: InventoryProduct[] | null): number {
  return (products ?? [])
    .filter((product) => product.title !== 'آبشده نقدی' && isCountBasedProduct(product))
    .reduce((sum, product) => sum + Number(product.wallet?.gold ?? 0), 0)
}

export function sumProductWalletByMetal(
  products: InventoryProduct[] | null | undefined,
  metalId: number
): number {
  return (products ?? [])
    .filter((product) => Number(product.metal_id) === metalId)
    .reduce((sum, product) => sum + Number(product.wallet?.gold ?? 0), 0)
}

export function getMainWalletLine(wallets?: UserWalletLine[] | null): UserWalletLine | undefined {
  return wallets?.find((line) => line.product_id == null)
}

export function getMainWalletGold(wallets?: UserWalletLine[] | null): number {
  return Number(getMainWalletLine(wallets)?.gold ?? 0)
}

export function getMainWalletCash(wallets?: UserWalletLine[] | null): number {
  return Number(getMainWalletLine(wallets)?.cash ?? 0)
}

export function sumWalletsGold(
  wallets?: UserWalletLine[] | null,
  metalId?: number | null
): number {
  if (!wallets?.length) {
    return 0
  }

  return wallets.reduce((sum, line) => {
    const weight = Number(line.gold ?? 0)
    if (metalId == null) {
      return sum + weight
    }

    if (line.product_id == null) {
      return metalId === METAL_GOLD ? sum + weight : sum
    }

    return Number(line.product?.metal_id) === metalId ? sum + weight : sum
  }, 0)
}

export function sumProductWalletsGold(
  wallets?: UserWalletLine[] | null,
  metalId?: number | null
): number {
  return (wallets ?? [])
    .filter((line) => line.product_id != null)
    .reduce((sum, line) => {
      const weight = Number(line.gold ?? 0)
      if (metalId == null) {
        return sum + weight
      }

      return Number(line.product?.metal_id) === metalId ? sum + weight : sum
    }, 0)
}

export function sumInventoryMetalWeight(products?: InventoryProduct[] | null): number {
  return (products ?? [])
    .filter((product) => product.title !== 'آبشده نقدی')
    .reduce((sum, product) => sum + Number(product.wallet?.gold ?? 0), 0)
}

export function getTotalMetalWeight(
  walletInfo?: Record<string, unknown> | null,
  wallets?: UserWalletLine[] | null,
  inventoryProducts?: InventoryProduct[] | null
): number {
  const fromInventory = sumInventoryMetalWeight(inventoryProducts)
  if (fromInventory > 0) {
    return fromInventory
  }

  const fromProductWallets = sumProductWalletsGold(wallets)
  if (fromProductWallets > 0) {
    return fromProductWallets
  }

  if (wallets?.length) {
    return getMainWalletGold(wallets)
  }

  return Number(walletInfo?.treasure ?? walletInfo?.gold_sum ?? walletInfo?.count_gold ?? 0)
}

/** فقط موجودی نقدی کیف اصلی — فیلد gold (مثل 0.3 کیلوگرم) جزو دارایی ریالی نیست */
export function getRialCashAmount(
  walletInfo?: Record<string, unknown> | null,
  wallets?: UserWalletLine[] | null
): number {
  const mainCash = getMainWalletCash(wallets)
  if (mainCash > 0) {
    return mainCash
  }

  return Number(walletInfo?.count_cash ?? walletInfo?.cash ?? 0)
}

export function getTotalRialEquivalent(walletInfo?: Record<string, unknown> | null): number {
  return Number(walletInfo?.count_cash_total ?? 0)
}

export function getMetalAssetAmount(
  walletInfo: Record<string, unknown> | null | undefined,
  metalId: number,
  inventoryProducts?: InventoryProduct[] | null
): number {
  if (inventoryProducts?.length) {
    const fromProducts = sumProductWalletByMetal(inventoryProducts, metalId)
    if (fromProducts > 0 || inventoryProducts.some((product) => Number(product.metal_id) === metalId)) {
      return fromProducts
    }
  }

  if (!walletInfo) {
    return 0
  }

  switch (metalId) {
    case METAL_GOLD:
      return Number(walletInfo.count_gold_wallets ?? walletInfo.count_gold ?? 0)
    case METAL_SILVER:
      return Number(walletInfo.count_silver ?? 0)
    case METAL_COPPER:
      return Number(walletInfo.count_copper ?? 0)
    default:
      return 0
  }
}

export function getMetalAssetAmountForDisplay(
  walletInfo: Record<string, unknown> | null | undefined,
  metalId: number,
  catalogMetalIds: number[],
  inventoryProducts?: InventoryProduct[] | null,
  wallets?: UserWalletLine[] | null
): number {
  if (isSingleMetalCatalog(catalogMetalIds)) {
    return getTotalMetalWeight(walletInfo, wallets, inventoryProducts)
  }

  const productWeight = sumProductWalletByMetal(inventoryProducts, metalId)
  const mainWalletWeight = wallets?.length
    ? getMainWalletGold(wallets)
    : Number(walletInfo?.count_gold_wallet ?? 0)

  if (catalogHasMeltedProducts(inventoryProducts as Product[] | null | undefined) && metalId === catalogMetalIds[0]) {
    return productWeight + mainWalletWeight
  }

  if (wallets?.length) {
    const walletWeight = sumWalletsGold(wallets, metalId)
    if (walletWeight > 0) {
      return walletWeight
    }
  }

  return productWeight || getMetalAssetAmount(walletInfo, metalId, inventoryProducts)
}