'use client'

import type {
  AgentAppPublishedReferenceResponse,
  AgentIconType,
} from '@dify/contracts/api/console/agent/types.gen'
import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuLinkItem,
  DropdownMenuTrigger,
} from '@langgenius/dify-ui/dropdown-menu'
import { useTranslation } from 'react-i18next'
import AppIcon from '@/app/components/base/app-icon'
import Link from '@/next/link'

const getWorkflowReferenceHref = (reference: AgentAppPublishedReferenceResponse) =>
  `/app/${reference.app_id}/workflow`

const getWorkflowReferenceIconType = (
  reference: AgentAppPublishedReferenceResponse,
): AgentIconType | undefined => {
  if (reference.app_icon_type === 'image' || reference.app_icon_type === 'link') return 'image'

  if (reference.app_icon_type === 'emoji') return 'emoji'

  return undefined
}

const getWorkflowReferenceImageUrl = (reference: AgentAppPublishedReferenceResponse) => {
  if (reference.app_icon_type === 'image' || reference.app_icon_type === 'link')
    return reference.app_icon

  return undefined
}

export function AgentWorkflowReferencesDropdown({
  agentName,
  publishedReferences,
  referenceCount,
}: {
  agentName: string
  publishedReferences: AgentAppPublishedReferenceResponse[]
  referenceCount: number
}) {
  const { t } = useTranslation('agentV2')

  return (
    <DropdownMenu modal={false}>
      <DropdownMenuTrigger
        aria-label={t(($) => $['roster.references.trigger'], {
          name: agentName,
          count: referenceCount,
        })}
        className="relative flex h-4 shrink-0 cursor-pointer items-center gap-1 rounded-md outline-hidden before:pointer-events-none before:absolute before:-inset-x-1 before:-inset-y-0.5 before:rounded-md before:content-[''] hover:before:bg-state-base-hover focus-visible:before:ring-2 focus-visible:before:ring-state-accent-solid data-popup-open:before:bg-state-base-hover"
      >
        <span
          aria-hidden
          className="i-custom-vender-agent-v2-plan size-3 shrink-0 text-text-tertiary"
        />
        <span className="system-xs-regular text-text-tertiary">{referenceCount}</span>
      </DropdownMenuTrigger>
      <DropdownMenuContent placement="bottom-start" sideOffset={4} popupClassName="w-[264px] p-1">
        <div className="flex h-7.5 items-center px-2 system-xs-medium text-text-tertiary">
          {t(($) => $['roster.references.label'], { name: agentName })}
        </div>
        {publishedReferences.map((reference) => (
          <DropdownMenuLinkItem
            key={reference.app_id}
            render={
              <Link
                href={getWorkflowReferenceHref(reference)}
                target="_blank"
                rel="noopener noreferrer"
              />
            }
            className="mx-0 h-8 gap-2 px-2 py-1 pr-2.5 system-md-regular text-text-secondary"
          >
            <span aria-hidden className="shrink-0">
              <AppIcon
                size="tiny"
                iconType={getWorkflowReferenceIconType(reference)}
                icon={reference.app_icon ?? undefined}
                background={reference.app_icon_background}
                imageUrl={getWorkflowReferenceImageUrl(reference)}
              />
            </span>
            <span className="min-w-0 flex-1 truncate">{reference.app_name}</span>
            <span
              aria-hidden
              className="i-ri-external-link-line size-3 shrink-0 text-text-tertiary"
            />
          </DropdownMenuLinkItem>
        ))}
      </DropdownMenuContent>
    </DropdownMenu>
  )
}