/*
Copyright (C) 2023-2026 QuantumNous

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.

For commercial licensing, please contact support@quantumnous.com
*/
import { useContext, useState } from 'react'
import { useQueryClient } from '@tanstack/react-query'
import type { Row } from '@tanstack/react-table'
import {
  MoreHorizontal,
  Boxes,
  Pencil,
  PlugZap,
  Gauge,
  DollarSign,
  Download,
  Copy,
  Power,
  PowerOff,
  Key,
  Trash2,
  RefreshCw,
  Loader2,
} from 'lucide-react'
import { useTranslation } from 'react-i18next'

import { ConfirmDialog } from '@/components/confirm-dialog'
import { Button } from '@/components/ui/button'
import {
  ADMIN_PERMISSION_ACTIONS,
  ADMIN_PERMISSION_RESOURCES,
  hasPermission,
} from '@/lib/admin-permissions'
import { useAuthStore } from '@/stores/auth-store'
import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuItem,
  DropdownMenuSeparator,
  DropdownMenuShortcut,
  DropdownMenuTrigger,
} from '@/components/ui/dropdown-menu'
import {
  Tooltip,
  TooltipContent,
  TooltipTrigger,
} from '@/components/ui/tooltip'

import { MODEL_FETCHABLE_TYPES } from '../constants'
import {
  channelsQueryKeys,
  handleDeleteChannel,
  handleTestChannel,
  handleToggleChannelStatus,
  isChannelEnabled,
  isMultiKeyChannel,
} from '../lib'
import { parseUpstreamUpdateMeta } from '../lib/upstream-update-utils'
import type { Channel } from '../types'
import { ChannelRowActionsLayoutContext } from './channel-row-actions-context'
import { useChannels } from './channels-provider'

interface DataTableRowActionsProps {
  row: Row<Channel>
}

export function DataTableRowActions({ row }: DataTableRowActionsProps) {
  const { t } = useTranslation()
  const layout = useContext(ChannelRowActionsLayoutContext)
  const channel = row.original
  const { setOpen, setCurrentRow, upstream } = useChannels()
  const queryClient = useQueryClient()
  const currentUser = useAuthStore((s) => s.auth.user)
  const [deleteConfirmOpen, setDeleteConfirmOpen] = useState(false)
  const [isTesting, setIsTesting] = useState(false)
  const [isTogglingStatus, setIsTogglingStatus] = useState(false)

  const isEnabled = isChannelEnabled(channel)
  const isMultiKey = isMultiKeyChannel(channel)
  const canEditSensitive = hasPermission(
    currentUser,
    ADMIN_PERMISSION_RESOURCES.CHANNEL,
    ADMIN_PERMISSION_ACTIONS.SENSITIVE_WRITE
  )

  const handleEdit = () => {
    setCurrentRow(channel)
    setOpen('update-channel')
  }

  const handleTest = () => {
    setCurrentRow(channel)
    setOpen('test-channel')
  }

  const handleDirectTest = async (e: React.MouseEvent<HTMLButtonElement>) => {
    e.stopPropagation()
    setIsTesting(true)
    try {
      await handleTestChannel(channel.id, { channelName: channel.name }, () => {
        queryClient.invalidateQueries({ queryKey: channelsQueryKeys.lists() })
      })
    } finally {
      setIsTesting(false)
    }
  }

  const handleQueryBalance = () => {
    setCurrentRow(channel)
    setOpen('balance-query')
  }

  const handleFetchModels = () => {
    setCurrentRow(channel)
    setOpen('fetch-models')
  }

  const handleManageOllamaModels = () => {
    setCurrentRow(channel)
    setOpen('ollama-models')
  }

  const handleCopy = () => {
    setCurrentRow(channel)
    setOpen('copy-channel')
  }

  const handleManageKeys = () => {
    setCurrentRow(channel)
    setOpen('multi-key-manage')
  }

  const handleToggleStatus = async (
    e?: React.MouseEvent<HTMLButtonElement>
  ) => {
    e?.stopPropagation()
    setIsTogglingStatus(true)
    try {
      await handleToggleChannelStatus(channel.id, channel.status, queryClient)
    } finally {
      setIsTogglingStatus(false)
    }
  }

  let statusIcon = <Power className='size-4' />
  if (isTogglingStatus) {
    statusIcon = <Loader2 className='size-4 animate-spin' />
  } else if (isEnabled) {
    statusIcon = <PowerOff className='size-4' />
  }

  return (
    <div className='-ml-1.5 flex items-center gap-1'>
      <Tooltip>
        <TooltipTrigger
          render={
            <Button
              variant='ghost'
              size='icon-sm'
              onClick={(e) => {
                e.stopPropagation()
                handleEdit()
              }}
              aria-label={t('Edit')}
            />
          }
        >
          <Pencil className='size-4' />
        </TooltipTrigger>
        <TooltipContent>{t('Edit')}</TooltipContent>
      </Tooltip>

      <Tooltip>
        <TooltipTrigger
          render={
            <Button
              variant='ghost'
              size='icon-sm'
              onClick={handleDirectTest}
              disabled={isTesting}
              aria-label={t('Test Connection')}
            />
          }
        >
          {isTesting ? (
            <Loader2 className='size-4 animate-spin' />
          ) : (
            <Gauge className='size-4' />
          )}
        </TooltipTrigger>
        <TooltipContent>{t('Test Connection')}</TooltipContent>
      </Tooltip>

      {layout === 'card' && (
        <Tooltip>
          <TooltipTrigger
            render={
              <Button
                variant='ghost'
                size='icon-sm'
                onClick={(e) => {
                  e.stopPropagation()
                  handleTest()
                }}
                aria-label={t('Test Channel Connection')}
              />
            }
          >
            <PlugZap className='size-4' />
          </TooltipTrigger>
          <TooltipContent>{t('Test Channel Connection')}</TooltipContent>
        </Tooltip>
      )}

      <Tooltip>
        <TooltipTrigger
          render={
            <Button
              variant='ghost'
              size='icon-sm'
              onClick={handleToggleStatus}
              disabled={isTogglingStatus}
              aria-label={isEnabled ? t('Disable') : t('Enable')}
              className={
                isEnabled
                  ? 'text-destructive hover:text-destructive'
                  : 'text-success hover:text-success'
              }
            />
          }
        >
          {statusIcon}
        </TooltipTrigger>
        <TooltipContent>
          {isEnabled ? t('Disable') : t('Enable')}
        </TooltipContent>
      </Tooltip>

      <DropdownMenu>
        <DropdownMenuTrigger
          render={
            <Button
              variant='ghost'
              className='data-popup-open:bg-muted flex h-8 w-8 p-0'
            />
          }
        >
          <MoreHorizontal className='h-4 w-4' />
          <span className='sr-only'>{t('Open menu')}</span>
        </DropdownMenuTrigger>
        <DropdownMenuContent align='end' className='w-48'>
          {/* Test Connection */}
          <DropdownMenuItem onClick={handleTest}>
            {t('Test Connection')}
            <DropdownMenuShortcut>
              <PlugZap size={16} />
            </DropdownMenuShortcut>
          </DropdownMenuItem>

          {/* Query Balance */}
          <DropdownMenuItem onClick={handleQueryBalance}>
            {t('Query Balance')}
            <DropdownMenuShortcut>
              <DollarSign size={16} />
            </DropdownMenuShortcut>
          </DropdownMenuItem>

          {/* Fetch Models */}
          <DropdownMenuItem onClick={handleFetchModels}>
            {t('Fetch Models')}
            <DropdownMenuShortcut>
              <Download size={16} />
            </DropdownMenuShortcut>
          </DropdownMenuItem>

          {/* Detect Upstream Updates (only for fetchable channel types) */}
          {MODEL_FETCHABLE_TYPES.has(channel.type) && (
            <DropdownMenuItem
              onClick={() => {
                const meta = parseUpstreamUpdateMeta(channel.settings)
                if (
                  meta.pendingAddModels.length > 0 ||
                  meta.pendingRemoveModels.length > 0
                ) {
                  upstream.openModal(
                    channel,
                    meta.pendingAddModels,
                    meta.pendingRemoveModels,
                    meta.pendingAddModels.length > 0 ? 'add' : 'remove'
                  )
                } else {
                  upstream.detectChannelUpdates(channel)
                }
              }}
            >
              {t('Upstream Updates')}
              <DropdownMenuShortcut>
                <RefreshCw size={16} />
              </DropdownMenuShortcut>
            </DropdownMenuItem>
          )}

          {/* Ollama Models (only for Ollama channels) */}
          {channel.type === 4 && (
            <DropdownMenuItem onClick={handleManageOllamaModels}>
              {t('Manage Ollama Models')}
              <DropdownMenuShortcut>
                <Boxes size={16} />
              </DropdownMenuShortcut>
            </DropdownMenuItem>
          )}

          <DropdownMenuSeparator />

          {/* Copy Channel */}
          <DropdownMenuItem
            disabled={!canEditSensitive}
            onClick={canEditSensitive ? handleCopy : undefined}
          >
            {t('Copy Channel')}
            <DropdownMenuShortcut>
              <Copy size={16} />
            </DropdownMenuShortcut>
          </DropdownMenuItem>
          {!canEditSensitive && (
            <DropdownMenuItem disabled className='text-xs normal-case'>
              {t('No permission to perform this action')}
            </DropdownMenuItem>
          )}

          {/* Manage Keys (only for multi-key channels) */}
          {isMultiKey && (
            <DropdownMenuItem onClick={handleManageKeys}>
              {t('Manage Keys')}
              <DropdownMenuShortcut>
                <Key size={16} />
              </DropdownMenuShortcut>
            </DropdownMenuItem>
          )}

          <DropdownMenuSeparator />

          {/* Delete */}
          <DropdownMenuItem
            disabled={!canEditSensitive}
            onSelect={(e) => {
              e.preventDefault()
              if (!canEditSensitive) return
              setDeleteConfirmOpen(true)
            }}
            className='text-destructive focus:text-destructive'
          >
            {t('Delete')}
            <DropdownMenuShortcut>
              <Trash2 size={16} />
            </DropdownMenuShortcut>
          </DropdownMenuItem>
        </DropdownMenuContent>
      </DropdownMenu>

      <ConfirmDialog
        open={deleteConfirmOpen}
        onOpenChange={setDeleteConfirmOpen}
        title={t('Delete Channel')}
        desc={t(
          'Are you sure you want to delete channel "{{name}}"? This action cannot be undone.',
          { name: channel.name }
        )}
        confirmText={t('Delete')}
        destructive
        handleConfirm={() => {
          if (!canEditSensitive) return
          handleDeleteChannel(channel.id, queryClient)
          setDeleteConfirmOpen(false)
        }}
      />
    </div>
  )
}
