'use client'
import type { ComponentProps, FC } from 'react'
import type { ToolWithProvider } from '../../types'
import type { ToolDefaultValue } from '../types'
import type { Tool } from '@/app/components/tools/types'
import { Button } from '@langgenius/dify-ui/button'
import { cn } from '@langgenius/dify-ui/cn'
import { PreviewCardTrigger } from '@langgenius/dify-ui/preview-card'
import * as React from 'react'
import { useMemo } from 'react'
import { useTranslation } from 'react-i18next'
import { trackEvent } from '@/app/components/base/amplitude'
import { useGetLanguage } from '@/context/i18n'
import useTheme from '@/hooks/use-theme'
import { Theme } from '@/types/app'
import { basePath } from '@/utils/var'
import BlockIcon from '../../block-icon'
import { BlockEnum } from '../../types'
import { BlockSelectorPreviewCardContent } from '../preview-card'

const normalizeProviderIcon = (icon?: ToolWithProvider['icon']) => {
  if (!icon) return icon
  if (
    typeof icon === 'string' &&
    basePath &&
    icon.startsWith('/') &&
    !icon.startsWith(`${basePath}/`)
  )
    return `${basePath}${icon}`
  return icon
}

type Props = Readonly<{
  provider: ToolWithProvider
  payload: Tool
  previewCardHandle: PreviewCardHandle
  disabled?: boolean
  isAdded?: boolean
  onSelect: (type: BlockEnum, tool: ToolDefaultValue) => void
}>

export type ToolActionPreviewPayload = {
  providerIcon: ToolWithProvider['icon']
  payload: Tool
  language: ReturnType<typeof useGetLanguage>
}

type PreviewCardHandle = NonNullable<ComponentProps<typeof PreviewCardTrigger>['handle']>
export type ToolActionPreviewCardHandle = PreviewCardHandle

const ToolItem: FC<Props> = ({
  provider,
  payload,
  previewCardHandle,
  onSelect,
  disabled,
  isAdded,
}) => {
  const { t } = useTranslation()

  const language = useGetLanguage()
  const previewDescriptionId = React.useId()
  const previewDescription = payload.description[language]
  const { theme } = useTheme()
  const normalizedIcon = useMemo<ToolWithProvider['icon']>(() => {
    return normalizeProviderIcon(provider.icon) ?? provider.icon
  }, [provider.icon])
  const normalizedIconDark = useMemo(() => {
    if (!provider.icon_dark) return undefined
    return normalizeProviderIcon(provider.icon_dark) ?? provider.icon_dark
  }, [provider.icon_dark])
  const providerIcon = useMemo(() => {
    if (theme === Theme.dark && normalizedIconDark) return normalizedIconDark
    return normalizedIcon
  }, [theme, normalizedIcon, normalizedIconDark])

  const row = (
    <Button
      variant="ghost"
      size="medium"
      aria-describedby={previewDescription ? previewDescriptionId : undefined}
      disabled={disabled}
      className="w-full justify-between pr-1 pl-[21px] text-left focus-visible:ring-inset disabled:cursor-default"
      onClick={() => {
        if (disabled) return
        const params: Record<string, string> = {}
        if (payload.parameters) {
          payload.parameters.forEach((item) => {
            params[item.name] = ''
          })
        }
        onSelect(BlockEnum.Tool, {
          provider_id: provider.id,
          provider_type: provider.type,
          provider_name: provider.name,
          provider_show_name: provider.label[language],
          plugin_id: provider.plugin_id,
          plugin_unique_identifier: provider.plugin_unique_identifier,
          provider_icon: normalizedIcon,
          provider_icon_dark: normalizedIconDark,
          tool_name: payload.name,
          tool_label: payload.label[language]!,
          tool_description: payload.description[language],
          title: payload.label[language]!,
          is_team_authorization: provider.is_team_authorization,
          paramSchemas: payload.parameters,
          params,
          meta: provider.meta,
        })
        trackEvent('tool_selected', {
          tool_name: payload.name,
          plugin_id: provider.plugin_id,
        })
      }}
    >
      <div className="truncate border-l-2 border-divider-subtle py-2 pl-4 system-sm-medium text-text-secondary">
        <span className={cn(disabled && 'opacity-30')}>{payload.label[language]}</span>
      </div>
      {isAdded && (
        <div className="mr-4 system-xs-regular text-text-tertiary">
          {t(($) => $['addToolModal.added'], { ns: 'tools' })}
        </div>
      )}
    </Button>
  )

  return (
    <>
      <PreviewCardTrigger
        delay={150}
        closeDelay={150}
        handle={previewCardHandle}
        payload={{
          providerIcon,
          payload,
          language,
        }}
        render={row}
      />
      {previewDescription && (
        <span id={previewDescriptionId} className="sr-only">
          {previewDescription}
        </span>
      )}
    </>
  )
}

type ToolActionPreviewCardProps = {
  payload?: ToolActionPreviewPayload
}

export function ToolActionPreviewCard({ payload }: ToolActionPreviewCardProps) {
  if (!payload) return null

  return (
    <BlockSelectorPreviewCardContent>
      <BlockIcon size="md" className="mb-2" type={BlockEnum.Tool} toolIcon={payload.providerIcon} />
      <div className="mb-1 text-sm/5 wrap-break-word text-text-primary">
        {payload.payload.label[payload.language]}
      </div>
      <div className="text-xs leading-[18px] wrap-break-word text-text-secondary">
        {payload.payload.description[payload.language]}
      </div>
    </BlockSelectorPreviewCardContent>
  )
}

export default React.memo(ToolItem)