import { useMemo } from 'react'
import { Link } from '@tanstack/react-router'
import { GlobeIcon, MoreHorizontalIcon } from 'lucide-react'

import { Badge } from '@cfdm/ui/components/badge'
import { Button } from '@cfdm/ui/components/button'
import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuItem,
  DropdownMenuTrigger,
} from '@cfdm/ui/components/dropdown-menu'
import {
  Select,
  SelectContent,
  SelectItem,
  SelectTrigger,
  SelectValue,
} from '@cfdm/ui/components/select'
import { ConfirmDialog } from '@/components/confirm-dialog'
import {
  DataGridCard,
  columnDefFromDataGrid,
} from '@/components/data-grid-card'
import type { DataGridColumn } from '@/components/data-grid-types'
import { DomainsFiltersToolbar } from '@/components/domains-filters-toolbar'
import { StatusBadge } from '@/components/status-badge'
import type { DomainListItem } from '@/lib/schemas'
import { useState } from 'react'

export type DomainTableRow = DomainListItem

interface GroupFilterItem {
  label: string
  value: string
}

export interface DomainsDataGridProps {
  data: DomainTableRow[]
  totalCount: number
  groupFilterItems: GroupFilterItem[]
  groupFilterValue: string
  onGroupFilterChange: (value: string | null) => void
  search: string
  onSearchChange: (value: string) => void
  onDelete: (domain: DomainTableRow) => void
  isDeleting?: boolean
  emptyAction?: React.ReactNode
}

export function DomainsDataGrid({
  data,
  totalCount,
  groupFilterItems,
  groupFilterValue,
  onGroupFilterChange,
  search,
  onSearchChange,
  onDelete,
  isDeleting = false,
  emptyAction,
}: DomainsDataGridProps) {
  const [deleteTarget, setDeleteTarget] = useState<DomainTableRow | null>(null)

  const filteredData = useMemo(() => {
    const query = search.trim().toLowerCase()
    if (!query) return data
    return data.filter(
      (d) =>
        d.zone_name.toLowerCase().includes(query) ||
        (d.group_name ?? '').toLowerCase().includes(query),
    )
  }, [data, search])

  const columns = useMemo<DataGridColumn<DomainTableRow>[]>(
    () => [
      {
        key: 'zone_name',
        header: 'Зона',
        icon: GlobeIcon,
        sortable: true,
        sortValue: (row) => row.zone_name,
        cell: (row) => (
          <Button
            variant="link"
            className="h-auto p-0 font-medium"
            nativeButton={false}
            render={
              <Link to="/domains/$domainId" params={{ domainId: String(row.id) }} />
            }
          >
            {row.zone_name}
          </Button>
        ),
      },
      {
        key: 'group',
        header: 'Группа',
        sortable: true,
        sortValue: (row) => row.group_name ?? 'Без группы',
        cell: (row) => {
          if (row.group_id && row.group_name) {
            return (
              <Button
                variant="link"
                className="h-auto p-0"
                nativeButton={false}
                render={
                  <Link
                    to="/groups/$groupId"
                    params={{ groupId: String(row.group_id) }}
                  />
                }
              >
                {row.group_name}
              </Button>
            )
          }
          return <Badge variant="outline">Без группы</Badge>
        },
      },
      {
        key: 'service_count',
        header: 'Сервисы',
        sortable: true,
        sortValue: (row) => row.service_count,
        className: 'tabular-nums',
        cell: (row) => (
          <Button
            variant="link"
            className="h-auto p-0 tabular-nums"
            nativeButton={false}
            render={<Link to="/services" search={{ domainId: row.id }} />}
          >
            {row.service_count}
          </Button>
        ),
      },
      {
        key: 'status',
        header: 'Статус',
        cell: (row) => <StatusBadge status={row.status} />,
      },
      {
        key: 'last_synced_at',
        header: 'Синхронизация',
        sortable: true,
        sortValue: (row) => row.last_synced_at ?? '',
        className: 'text-muted-foreground tabular-nums',
        cell: (row) => row.last_synced_at ?? '—',
      },
      {
        key: 'actions',
        header: '',
        enableHiding: false,
        className: 'text-right',
        cell: (row) => (
          <div className="text-right">
            <DropdownMenu>
              <DropdownMenuTrigger
                render={<Button variant="outline" size="icon" className="size-8" />}
              >
                <MoreHorizontalIcon />
                <span className="sr-only">Действия</span>
              </DropdownMenuTrigger>
              <DropdownMenuContent align="end">
                <DropdownMenuItem
                  render={
                    <Link to="/domains/$domainId" params={{ domainId: String(row.id) }} />
                  }
                >
                  Обзор
                </DropdownMenuItem>
                <DropdownMenuItem
                  render={
                    <Link
                      to="/domains/$domainId/dns"
                      params={{ domainId: String(row.id) }}
                      search={{ host: undefined }}
                    />
                  }
                >
                  DNS
                </DropdownMenuItem>
                <DropdownMenuItem
                  variant="destructive"
                  disabled={isDeleting}
                  onClick={() => setDeleteTarget(row)}
                >
                  Удалить
                </DropdownMenuItem>
              </DropdownMenuContent>
            </DropdownMenu>
          </div>
        ),
      },
    ],
    [isDeleting],
  )

  const groupSelect = (
    <Select
      items={[{ label: 'Все группы', value: 'all' }, ...groupFilterItems]}
      value={groupFilterValue || 'all'}
      onValueChange={(value) => {
        if (!value || value === 'all') {
          onGroupFilterChange(null)
          return
        }
        onGroupFilterChange(value)
      }}
    >
      <SelectTrigger className="w-full sm:w-56">
        <SelectValue placeholder="Все группы" />
      </SelectTrigger>
      <SelectContent>
        <SelectItem value="all">Все группы</SelectItem>
        {groupFilterItems.map((item) => (
          <SelectItem key={item.value} value={item.value}>
            {item.label}
          </SelectItem>
        ))}
      </SelectContent>
    </Select>
  )

  const hasActiveFilters = Boolean(groupFilterValue) || Boolean(search.trim())

  return (
    <>
      <DataGridCard
        title="Список доменов"
        description="Импортированные зоны Cloudflare"
        columns={columnDefFromDataGrid(columns)}
        data={filteredData}
        rowId={(row) => String(row.id)}
        emptyTitle="Домены не найдены"
        emptyDescription="Импортируйте зону из Cloudflare или измените фильтры"
        emptyAction={emptyAction}
        pinLastColumn
        actions={
          <DomainsFiltersToolbar
            search={search}
            onSearchChange={onSearchChange}
            groupSelect={groupSelect}
            shownCount={filteredData.length}
            totalCount={totalCount}
            hasActiveFilters={hasActiveFilters}
            onReset={() => {
              onSearchChange('')
              onGroupFilterChange(null)
            }}
          />
        }
      />
      <ConfirmDialog
        open={deleteTarget !== null}
        onOpenChange={(open) => {
          if (!open) setDeleteTarget(null)
        }}
        title="Удалить зону?"
        description={
          deleteTarget
            ? `Зона «${deleteTarget.zone_name}» будет удалена из менеджера вместе с DNS-записями и привязками. Зона в Cloudflare не затрагивается.`
            : ''
        }
        onConfirm={() => {
          if (!deleteTarget) return
          onDelete(deleteTarget)
          setDeleteTarget(null)
        }}
        disabled={isDeleting}
      />
    </>
  )
}