import { Badge } from '@/component/ui/badge'
import { Button } from '@/component/ui/button'
import {
  Dialog,
  DialogContent,
  DialogHeader,
  DialogTitle,
} from '@/component/ui/dialog'
import { Calendar, Check, FileText, Settings, X } from 'lucide-react'
import { useState } from 'react'

interface MeasurementStandard {
  id: string
  name: string
  shortName: string
  type: string
  registryNumber: string
  range: string
  accuracy: string
  certificateNumber: string
  validUntil: string
}

interface StandardsSelectorProps {
  isOpen: boolean
  onClose: () => void
  value: string[]
  onChange: (value: string[]) => void
  registryNumber?: string
}

// Моковые данные для эталонов
const mockStandards: MeasurementStandard[] = [
  {
    id: '1',
    name: 'Эталон массы 1 кг',
    shortName: 'ЭМ-1кг',
    type: 'Масса',
    registryNumber: 'ГРСИ 12345-01',
    range: '0.5-2 кг',
    accuracy: '±0.001 г',
    certificateNumber: 'СИ-2024-001',
    validUntil: '2025-12-31',
  },
  {
    id: '2',
    name: 'Эталон длины 1 м',
    shortName: 'ЭД-1м',
    type: 'Длина',
    registryNumber: 'ГРСИ 12345-02',
    range: '0.5-2 м',
    accuracy: '±0.001 мм',
    certificateNumber: 'СИ-2024-002',
    validUntil: '2025-06-30',
  },
  {
    id: '3',
    name: 'Эталон температуры 20°C',
    shortName: 'ЭТ-20°C',
    type: 'Температура',
    registryNumber: 'ГРСИ 12345-03',
    range: '15-25°C',
    accuracy: '±0.01°C',
    certificateNumber: 'СИ-2024-003',
    validUntil: '2025-03-15',
  },
  {
    id: '4',
    name: 'Эталон давления 1 Па',
    shortName: 'ЭД-1Па',
    type: 'Давление',
    registryNumber: 'ГРСИ 12345-04',
    range: '0.5-2 Па',
    accuracy: '±0.001 Па',
    certificateNumber: 'СИ-2024-004',
    validUntil: '2025-09-20',
  },
  {
    id: '5',
    name: 'Эталон времени 1 с',
    shortName: 'ЭВ-1с',
    type: 'Время',
    registryNumber: 'ГРСИ 12345-05',
    range: '0.5-2 с',
    accuracy: '±0.000001 с',
    certificateNumber: 'СИ-2024-005',
    validUntil: '2025-12-01',
  },
]

export function StandardsSelector({
  isOpen,
  onClose,
  value = [],
  onChange,
  registryNumber = 'ГРСИ 12345',
}: StandardsSelectorProps) {
  const [selectedStandards, setSelectedStandards] = useState<string[]>(value)

  const toggleStandard = (standardId: string) => {
    setSelectedStandards(prev => {
      if (prev.includes(standardId)) {
        return prev.filter(id => id !== standardId)
      } else if (prev.length < 7) {
        return [...prev, standardId]
      }
      return prev
    })
  }

  const handleSave = () => {
    onChange(selectedStandards)
    onClose()
  }

  const handleClose = () => {
    setSelectedStandards(value) // Сбрасываем к исходному значению
    onClose()
  }

  const isExpiringSoon = (validUntil: string) => {
    const expiryDate = new Date(validUntil)
    const now = new Date()
    const monthsUntilExpiry =
      (expiryDate.getTime() - now.getTime()) / (1000 * 60 * 60 * 24 * 30)
    return monthsUntilExpiry <= 3
  }

  return (
    <Dialog open={isOpen} onOpenChange={handleClose}>
      <DialogContent className="max-h-[90vh] max-w-4xl overflow-hidden">
        <DialogHeader>
          <div className="flex items-center justify-between">
            <div>
              <DialogTitle className="flex items-center gap-2 text-lg">
                <Settings className="h-5 w-5" />
                Измерительные эталоны
              </DialogTitle>
              <p className="mt-1 text-sm text-muted-foreground">
                ГРСИ: {registryNumber} • Выбрано: {selectedStandards.length}/7
              </p>
            </div>
            <Button variant="ghost" size="sm" onClick={handleClose}>
              <X className="h-4 w-4" />
            </Button>
          </div>
        </DialogHeader>

        <div className="space-y-4">
          <div className="grid max-h-96 grid-cols-1 gap-3 overflow-y-auto md:grid-cols-2">
            {mockStandards.map(standard => {
              const isSelected = selectedStandards.includes(standard.id)
              const isExpiring = isExpiringSoon(standard.validUntil)

              return (
                <div
                  key={standard.id}
                  onClick={() => toggleStandard(standard.id)}
                  className={`cursor-pointer rounded-lg border p-3 transition-all duration-200 ${
                    isSelected
                      ? 'border-primary bg-primary/10 shadow-sm'
                      : 'border-border hover:border-primary/50 hover:bg-primary/5'
                  }`}
                >
                  <div className="flex items-start gap-3">
                    <div
                      className={`mt-1 flex h-5 w-5 items-center justify-center rounded-full border-2 transition-colors ${
                        isSelected
                          ? 'border-primary bg-primary'
                          : 'border-border'
                      }`}
                    >
                      {isSelected && (
                        <Check className="h-3 w-3 text-primary-foreground" />
                      )}
                    </div>

                    <div className="min-w-0 flex-1">
                      <div className="flex items-start justify-between gap-2">
                        <div className="flex-1">
                          <div className="text-sm font-medium leading-tight text-foreground">
                            {standard.shortName}
                          </div>
                          <div className="mt-1 line-clamp-2 text-xs text-muted-foreground">
                            {standard.name}
                          </div>
                        </div>

                        <div className="flex shrink-0 flex-col gap-1">
                          <Badge variant="secondary" className="text-xs">
                            {standard.accuracy}
                          </Badge>
                          {isExpiring && (
                            <Badge variant="destructive" className="text-xs">
                              <Calendar className="mr-1 h-3 w-3" />
                              Истекает
                            </Badge>
                          )}
                        </div>
                      </div>

                      <div className="mt-2 space-y-1">
                        <div className="flex items-center gap-1 text-xs text-muted-foreground">
                          <FileText className="h-3 w-3" />
                          {standard.registryNumber}
                        </div>
                        <div className="text-xs text-muted-foreground">
                          Диапазон: {standard.range}
                        </div>
                        <div className="text-xs text-muted-foreground">
                          Действует до:{' '}
                          {new Date(standard.validUntil).toLocaleDateString(
                            'ru-RU'
                          )}
                        </div>
                      </div>
                    </div>
                  </div>
                </div>
              )
            })}
          </div>

          <div className="flex items-center justify-between border-t pt-4">
            <div className="text-sm text-muted-foreground">
              Максимум 7 эталонов. Выбрано: {selectedStandards.length}
            </div>
            <div className="flex gap-2">
              <Button variant="outline" onClick={handleClose}>
                Отмена
              </Button>
              <Button onClick={handleSave}>Сохранить</Button>
            </div>
          </div>
        </div>
      </DialogContent>
    </Dialog>
  )
}