'use client'

import React from 'react'
import cn from 'classnames'
import { useRouter } from 'next/navigation'
import { useTranslation } from 'react-i18next'
import { useContext } from 'use-context-selector'
import useSWR from 'swr'
import Toast from '../../base/toast'
import s from './style.module.css'
import ExploreContext from '@/context/explore-context'
import type { App } from '@/models/explore'
import Category from '@/app/components/explore/category'
import AppCard from '@/app/components/explore/app-card'
import { fetchAppDetail, fetchAppList } from '@/service/explore'
import { importApp } from '@/service/apps'
import { useTabSearchParams } from '@/hooks/use-tab-searchparams'
import CreateAppModal from '@/app/components/explore/create-app-modal'
import type { CreateAppModalProps } from '@/app/components/explore/create-app-modal'
import Loading from '@/app/components/base/loading'
import { NEED_REFRESH_APP_LIST_KEY } from '@/config'
import { useAppContext } from '@/context/app-context'
import { getRedirection } from '@/utils/app-redirection'
import TabSliderNew from '@/app/components/base/tab-slider-new'
import { DotsGrid } from '@/app/components/base/icons/src/vender/line/general'
import { Route } from '@/app/components/base/icons/src/vender/line/mapsAndTravel'
import {
  AiText,
  ChatBot,
  CuteRobot,
} from '@/app/components/base/icons/src/vender/line/communication'

type AppsProps = {
  pageType?: PageType
}

export enum PageType {
  EXPLORE = 'explore',
  CREATE = 'create',
}

const Apps = ({
  pageType = PageType.EXPLORE,
}: AppsProps) => {
  const { t } = useTranslation()
  const { isCurrentWorkspaceManager } = useAppContext()
  const { push } = useRouter()
  const { hasEditPermission } = useContext(ExploreContext)
  const allCategoriesEn = t('explore.apps.allCategories', { lng: 'en' })

  const [currCategory, setCurrCategory] = useTabSearchParams({
    defaultTab: allCategoriesEn,
    disableSearchParams: pageType !== PageType.EXPLORE,
  })
  const options = [
    { value: allCategoriesEn, text: t('app.types.all'), icon: <DotsGrid className='w-[14px] h-[14px] mr-1'/> },
    { value: 'chat', text: t('app.types.chatbot'), icon: <ChatBot className='w-[14px] h-[14px] mr-1'/> },
    { value: 'agent-chat', text: t('app.types.agent'), icon: <CuteRobot className='w-[14px] h-[14px] mr-1'/> },
    { value: 'completion', text: t('app.newApp.completeApp'), icon: <AiText className='w-[14px] h-[14px] mr-1'/> },
    { value: 'workflow', text: t('app.types.workflow'), icon: <Route className='w-[14px] h-[14px] mr-1'/> },
  ]

  const {
    data: { categories, allList },
  } = useSWR(
    ['/explore/apps'],
    () =>
      fetchAppList().then(({ categories, recommended_apps }) => ({
        categories,
        allList: recommended_apps.sort((a, b) => a.position - b.position),
      })),
    {
      fallbackData: {
        categories: [],
        allList: [],
      },
    },
  )

  const currList
    = currCategory === allCategoriesEn
      ? allList
      : allList.filter((item) => {
        if (pageType === PageType.EXPLORE)
          return item.category === currCategory
        else if (currCategory === 'chat')
          return item.app.mode === 'chat' || item.app.mode === 'advanced-chat'
        else
          return item.app.mode === currCategory
      })

  const [currApp, setCurrApp] = React.useState<App | null>(null)
  const [isShowCreateModal, setIsShowCreateModal] = React.useState(false)
  const onCreate: CreateAppModalProps['onConfirm'] = async ({
    name,
    icon,
    icon_background,
    description,
  }) => {
    const { export_data } = await fetchAppDetail(
      currApp?.app.id as string,
    )
    try {
      const app = await importApp({
        data: export_data,
        name,
        icon,
        icon_background,
        description,
      })
      setIsShowCreateModal(false)
      Toast.notify({
        type: 'success',
        message: t('app.newApp.appCreated'),
      })
      localStorage.setItem(NEED_REFRESH_APP_LIST_KEY, '1')
      getRedirection(isCurrentWorkspaceManager, app, push)
    }
    catch (e) {
      Toast.notify({ type: 'error', message: t('app.newApp.appCreateFailed') })
    }
  }

  if (!categories) {
    return (
      <div className="flex h-full items-center">
        <Loading type="area" />
      </div>
    )
  }

  return (
    <div className={cn(
      'flex flex-col',
      pageType === PageType.EXPLORE ? 'h-full border-l border-gray-200' : 'h-[calc(100%-56px)]',
    )}>
      {pageType === PageType.EXPLORE && (
        <div className='shrink-0 pt-6 px-12'>
          <div className={`mb-1 ${s.textGradient} text-xl font-semibold`}>{t('explore.apps.title')}</div>
          <div className='text-gray-500 text-sm'>{t('explore.apps.description')}</div>
        </div>
      )}
      {pageType === PageType.EXPLORE && (
        <Category
          className='mt-6 px-12'
          list={categories}
          value={currCategory}
          onChange={setCurrCategory}
          allCategoriesEn={allCategoriesEn}
        />
      )}
      {pageType !== PageType.EXPLORE && (
        <TabSliderNew
          className='px-8 py-2'
          value={currCategory}
          onChange={setCurrCategory}
          options={options}
        />
      )}
      <div className={cn(
        'relative flex flex-1 pb-6 flex-col overflow-auto bg-gray-100 shrink-0 grow',
        pageType === PageType.EXPLORE ? 'mt-6' : 'mt-0 pt-2',
      )}>
        <nav
          className={cn(
            s.appList,
            'grid content-start shrink-0',
            pageType === PageType.EXPLORE ? 'gap-4 px-6 sm:px-12' : 'gap-3 px-8  sm:!grid-cols-2 md:!grid-cols-3 lg:!grid-cols-4',
          )}>
          {currList.map(app => (
            <AppCard
              key={app.app_id}
              isExplore={pageType === PageType.EXPLORE}
              app={app}
              canCreate={hasEditPermission}
              onCreate={() => {
                setCurrApp(app)
                setIsShowCreateModal(true)
              }}
            />
          ))}
        </nav>
      </div>
      {isShowCreateModal && (
        <CreateAppModal
          appIcon={currApp?.app.icon || ''}
          appIconBackground={currApp?.app.icon_background || ''}
          appName={currApp?.app.name || ''}
          appDescription={currApp?.app.description || ''}
          show={isShowCreateModal}
          onConfirm={onCreate}
          onHide={() => setIsShowCreateModal(false)}
        />
      )}
    </div>
  )
}

export default React.memo(Apps)