import { useMemo } from 'react'
import { useQuery } from '@tanstack/react-query'
import { type ColumnDef } from '@tanstack/react-table'
import { useTranslation } from 'react-i18next'
import { useAuthStore } from '@/stores/auth-store'
import { getUserGroups } from '@/lib/api'
import { formatQuota, formatTimestampToDate } from '@/lib/format'
import { cn } from '@/lib/utils'
import { Checkbox } from '@/components/ui/checkbox'
import { Progress } from '@/components/ui/progress'
import {
  Tooltip,
  TooltipContent,
  TooltipTrigger,
} from '@/components/ui/tooltip'
import { DataTableColumnHeader } from '@/components/data-table'
import { StatusBadge } from '@/components/status-badge'
import { getSystemOptions } from '@/features/system-settings/api'
import { API_KEY_STATUSES } from '../constants'
import { type ApiKey } from '../types'
import {
  ApiKeyCell,
  ModelLimitsCell,
  IpRestrictionsCell,
} from './api-keys-cells'
import { DataTableRowActions } from './data-table-row-actions'

function getQuotaProgressColor(percentage: number): string {
  if (percentage <= 10) return '[&_[data-slot=progress-indicator]]:bg-rose-500'
  if (percentage <= 30) return '[&_[data-slot=progress-indicator]]:bg-amber-500'
  return '[&_[data-slot=progress-indicator]]:bg-emerald-500'
}

function getGroupRatioClassName(ratio: number): string {
  if (ratio > 1) {
    return 'border-amber-200 bg-amber-50 text-amber-700 dark:border-amber-900/60 dark:bg-amber-950/40 dark:text-amber-300'
  }
  if (ratio < 1) {
    return 'border-sky-200 bg-sky-50 text-sky-700 dark:border-sky-900/60 dark:bg-sky-950/40 dark:text-sky-300'
  }
  return 'border-border bg-muted text-muted-foreground'
}

function useGroupRatios(): Record<string, number> {
  const isAdmin = useAuthStore((s) =>
    Boolean(s.auth.user?.role && s.auth.user.role >= 10)
  )

  const { data: adminData } = useQuery({
    queryKey: ['system-options-group-ratio'],
    queryFn: getSystemOptions,
    enabled: isAdmin,
    staleTime: 5 * 60 * 1000,
    select: (res) => {
      if (!res.success || !res.data) return {}
      const option = res.data.find((o) => o.key === 'GroupRatio')
      if (!option?.value) return {}
      try {
        return JSON.parse(option.value) as Record<string, number>
      } catch {
        return {}
      }
    },
  })

  const { data: userGroupsData } = useQuery({
    queryKey: ['user-self-groups'],
    queryFn: getUserGroups,
    enabled: !isAdmin,
    staleTime: 5 * 60 * 1000,
    select: (res) => {
      if (!res.success || !res.data) return {}
      const ratios: Record<string, number> = {}
      for (const [group, info] of Object.entries(res.data)) {
        if (typeof info.ratio === 'number') {
          ratios[group] = info.ratio
        }
      }
      return ratios
    },
  })

  return useMemo(
    () => (isAdmin ? adminData : userGroupsData) ?? {},
    [isAdmin, adminData, userGroupsData]
  )
}

export function useApiKeysColumns(): ColumnDef<ApiKey>[] {
  const { t } = useTranslation()
  const groupRatios = useGroupRatios()
  return [
    {
      id: 'select',
      header: ({ table }) => (
        <Checkbox
          checked={
            table.getIsAllPageRowsSelected() ||
            (table.getIsSomePageRowsSelected() && 'indeterminate')
          }
          onCheckedChange={(value) => table.toggleAllPageRowsSelected(!!value)}
          aria-label='Select all'
          className='translate-y-[2px]'
        />
      ),
      cell: ({ row }) => (
        <Checkbox
          checked={row.getIsSelected()}
          onCheckedChange={(value) => row.toggleSelected(!!value)}
          aria-label='Select row'
          className='translate-y-[2px]'
        />
      ),
      enableSorting: false,
      enableHiding: false,
      meta: { label: t('Select') },
    },
    {
      accessorKey: 'name',
      header: ({ column }) => (
        <DataTableColumnHeader column={column} title={t('Name')} />
      ),
      cell: ({ row }) => (
        <div className='max-w-[200px] truncate font-medium'>
          {row.getValue('name')}
        </div>
      ),
      meta: { label: t('Name'), mobileTitle: true },
    },
    {
      accessorKey: 'status',
      header: ({ column }) => (
        <DataTableColumnHeader column={column} title={t('Status')} />
      ),
      cell: ({ row }) => {
        const statusConfig = API_KEY_STATUSES[row.getValue('status') as number]
        if (!statusConfig) return null
        return (
          <StatusBadge
            label={t(statusConfig.label)}
            variant={statusConfig.variant}
            showDot={statusConfig.showDot}
            copyable={false}
          />
        )
      },
      filterFn: (row, id, value) => value.includes(String(row.getValue(id))),
      meta: { label: t('Status'), mobileBadge: true },
    },
    {
      id: 'key',
      accessorKey: 'key',
      header: t('API Key'),
      cell: ({ row }) => <ApiKeyCell apiKey={row.original} />,
      enableSorting: false,
      meta: { label: t('API Key') },
    },
    {
      id: 'quota',
      accessorKey: 'remain_quota',
      header: ({ column }) => (
        <DataTableColumnHeader column={column} title={t('Quota')} />
      ),
      cell: ({ row }) => {
        const apiKey = row.original
        if (apiKey.unlimited_quota) {
          return (
            <StatusBadge
              label={t('Unlimited')}
              variant='neutral'
              copyable={false}
            />
          )
        }

        const used = apiKey.used_quota
        const remaining = apiKey.remain_quota
        const total = used + remaining
        const percentage = total > 0 ? (remaining / total) * 100 : 0

        return (
          <Tooltip>
            <TooltipTrigger asChild>
              <div className='w-[150px] space-y-1'>
                <div className='flex justify-between text-xs'>
                  <span className='font-medium tabular-nums'>
                    {formatQuota(remaining)}
                  </span>
                  <span className='text-muted-foreground tabular-nums'>
                    {formatQuota(total)}
                  </span>
                </div>
                <Progress
                  value={percentage}
                  className={cn('h-1.5', getQuotaProgressColor(percentage))}
                />
              </div>
            </TooltipTrigger>
            <TooltipContent>
              <div className='space-y-1 text-xs'>
                <div>
                  {t('Used:')} {formatQuota(used)}
                </div>
                <div>
                  {t('Remaining:')} {formatQuota(remaining)} (
                  {percentage.toFixed(1)}%)
                </div>
                <div>
                  {t('Total:')} {formatQuota(total)}
                </div>
              </div>
            </TooltipContent>
          </Tooltip>
        )
      },
      meta: { label: t('Quota') },
    },
    {
      accessorKey: 'group',
      header: ({ column }) => (
        <DataTableColumnHeader column={column} title={t('Group')} />
      ),
      cell: ({ row }) => {
        const apiKey = row.original
        const group = row.getValue('group') as string
        const ratio = group && group !== 'auto' ? groupRatios[group] : undefined

        if (group === 'auto') {
          return (
            <Tooltip>
              <TooltipTrigger asChild>
                <span className='inline-flex items-center gap-1.5 text-xs'>
                  <span className='text-muted-foreground'>{t('Auto')}</span>
                  {apiKey.cross_group_retry && (
                    <>
                      <span className='text-muted-foreground/30'>·</span>
                      <span className='text-muted-foreground/60'>
                        {t('Cross-group')}
                      </span>
                    </>
                  )}
                </span>
              </TooltipTrigger>
              <TooltipContent>
                <span className='text-xs'>
                  {t(
                    'Automatically selects the best available group with circuit breaker mechanism'
                  )}
                </span>
              </TooltipContent>
            </Tooltip>
          )
        }
        return (
          <span className='inline-flex items-center gap-2 text-xs'>
            <span className='font-medium'>{group || t('Default')}</span>
            {ratio != null && (
              <span
                className={cn(
                  'inline-flex items-center gap-1 rounded-md border px-1.5 py-0.5 font-mono text-[11px] leading-none tabular-nums',
                  getGroupRatioClassName(ratio)
                )}
              >
                <span className='size-1 rounded-full bg-current opacity-60' />
                <span>{ratio}x</span>
              </span>
            )}
          </span>
        )
      },
      meta: { label: t('Group'), mobileHidden: true },
    },
    {
      id: 'model_limits',
      accessorKey: 'model_limits',
      header: ({ column }) => (
        <DataTableColumnHeader column={column} title={t('Models')} />
      ),
      cell: ({ row }) => <ModelLimitsCell apiKey={row.original} />,
      enableSorting: false,
      meta: { label: t('Models'), mobileHidden: true },
    },
    {
      id: 'allow_ips',
      accessorKey: 'allow_ips',
      header: ({ column }) => (
        <DataTableColumnHeader column={column} title={t('IP Restriction')} />
      ),
      cell: ({ row }) => <IpRestrictionsCell apiKey={row.original} />,
      enableSorting: false,
      meta: { label: t('IP Restriction'), mobileHidden: true },
    },
    {
      accessorKey: 'created_time',
      header: ({ column }) => (
        <DataTableColumnHeader column={column} title={t('Created')} />
      ),
      cell: ({ row }) => (
        <span className='text-muted-foreground font-mono text-xs tabular-nums'>
          {formatTimestampToDate(row.getValue('created_time'))}
        </span>
      ),
      meta: { label: t('Created'), mobileHidden: true },
    },
    {
      accessorKey: 'accessed_time',
      header: ({ column }) => (
        <DataTableColumnHeader column={column} title={t('Last Used')} />
      ),
      cell: ({ row }) => {
        const accessedTime = row.getValue('accessed_time') as number
        if (!accessedTime) {
          return <span className='text-muted-foreground text-xs'>-</span>
        }
        return (
          <span className='text-muted-foreground font-mono text-xs tabular-nums'>
            {formatTimestampToDate(accessedTime)}
          </span>
        )
      },
      meta: { label: t('Last Used'), mobileHidden: true },
    },
    {
      accessorKey: 'expired_time',
      header: ({ column }) => (
        <DataTableColumnHeader column={column} title={t('Expires')} />
      ),
      cell: ({ row }) => {
        const expiredTime = row.getValue('expired_time') as number
        if (expiredTime === -1) {
          return (
            <StatusBadge
              label={t('Never')}
              variant='neutral'
              copyable={false}
            />
          )
        }
        const isExpired = expiredTime * 1000 < Date.now()
        return (
          <span
            className={cn(
              'font-mono text-xs tabular-nums',
              isExpired ? 'text-destructive' : 'text-muted-foreground'
            )}
          >
            {formatTimestampToDate(expiredTime)}
          </span>
        )
      },
      meta: { label: t('Expires'), mobileHidden: true },
    },
    {
      id: 'actions',
      cell: ({ row }) => <DataTableRowActions row={row} />,
      meta: { label: t('Actions') },
    },
  ]
}
