/**
 * ХУКА ДЛЯ ЛОГИКИ ВЫБОРА ПОСТАВЩИКОВ
 *
 * Выделена из create-suppliers-supply-page.tsx
 * Управляет состоянием выбранного поставщика и поиском
 */

import { useQuery } from '@apollo/client'
import { useState, useMemo } from 'react'

import { GET_MY_COUNTERPARTIES } from '@/graphql/queries'

import type { GoodsSupplier } from '../types/supply-creation.types'

export function useSupplierSelection() {
  // Состояния
  const [selectedSupplier, setSelectedSupplier] = useState<GoodsSupplier | null>(null)
  const [searchQuery, setSearchQuery] = useState('')

  // Загружаем партнеров-поставщиков согласно rules2.md 13.3
  const {
    data: counterpartiesData,
    loading: counterpartiesLoading,
    error: counterpartiesError,
  } = useQuery(GET_MY_COUNTERPARTIES, {
    errorPolicy: 'all', // Показываем все ошибки, но не прерываем работу
    onError: (error) => {
      try {
        console.warn('🚨 GET_MY_COUNTERPARTIES ERROR:', {
          errorMessage: error?.message || 'Unknown error',
          hasGraphQLErrors: !!error?.graphQLErrors?.length,
          hasNetworkError: !!error?.networkError,
        })
      } catch (logError) {
        console.warn('❌ Error in counterparties error handler:', logError)
      }
    },
  })

  // Обработка данных контрагентов
  const allCounterparties: GoodsSupplier[] = useMemo(() => {
    try {
      return counterpartiesData?.myCounterparties || []
    } catch (error) {
      console.warn('❌ Error processing counterparties data:', error)
      return []
    }
  }, [counterpartiesData])

  // Показываем только партнеров с типом WHOLESALE согласно rules2.md 13.3
  const wholesaleSuppliers = useMemo(() => {
    return allCounterparties.filter((cp: GoodsSupplier) => {
      try {
        return cp && cp.type === 'WHOLESALE'
      } catch (error) {
        console.warn('❌ Error filtering wholesale supplier:', error)
        return false
      }
    })
  }, [allCounterparties])

  // Фильтрация поставщиков по поисковому запросу
  const suppliers = useMemo(() => {
    return wholesaleSuppliers.filter((cp: GoodsSupplier) => {
      try {
        if (!searchQuery.trim()) return true
        const searchLower = searchQuery.toLowerCase()
        const name = (cp.name || cp.fullName || '').toLowerCase()
        const inn = (cp.inn || '').toLowerCase()
        return name.includes(searchLower) || inn.includes(searchLower)
      } catch (error) {
        console.warn('❌ Error filtering supplier by search:', error)
        return false
      }
    })
  }, [wholesaleSuppliers, searchQuery])

  // Утилитарные функции для работы с рынками
  const getMarketLabel = (market?: string) => {
    switch (market) {
      case 'wildberries':
        return 'WB'
      case 'ozon':
        return 'OZON'
      case 'yandexmarket':
        return 'YM'
      default:
        return 'Универсальный'
    }
  }

  const getMarketBadgeStyle = (market?: string) => {
    switch (market) {
      case 'wildberries':
        return 'bg-purple-500/20 text-purple-300 border-purple-500/30'
      case 'ozon':
        return 'bg-blue-500/20 text-blue-300 border-blue-500/30'
      case 'yandexmarket':
        return 'bg-yellow-500/20 text-yellow-300 border-yellow-500/30'
      default:
        return 'bg-gray-500/20 text-gray-300 border-gray-500/30'
    }
  }

  return {
    // Состояние
    selectedSupplier,
    setSelectedSupplier,
    searchQuery,
    setSearchQuery,

    // Данные
    suppliers,
    allCounterparties,
    wholesaleSuppliers,

    // Статусы загрузки
    loading: counterpartiesLoading,
    error: counterpartiesError,

    // Утилиты
    getMarketLabel,
    getMarketBadgeStyle,
  }
}