'use client'

import { Checkbox } from '@langgenius/dify-ui/checkbox'
import { CheckboxGroup } from '@langgenius/dify-ui/checkbox-group'
import { cn } from '@langgenius/dify-ui/cn'
import { Popover, PopoverContent, PopoverTrigger } from '@langgenius/dify-ui/popover'
import { RiArrowDownSLine, RiCloseCircleFill } from '@remixicon/react'
import { useState } from 'react'
import { useTranslation } from 'react-i18next'
import Input from '@/app/components/base/input'
import { useCategories } from '../../hooks'

type CategoriesFilterProps = {
  value: string[]
  onChange: (categories: string[]) => void
}
const CategoriesFilter = ({ value, onChange }: CategoriesFilterProps) => {
  const { t } = useTranslation()
  const [open, setOpen] = useState(false)
  const [searchText, setSearchText] = useState('')
  const { categories: options, categoriesMap } = useCategories()
  const filteredOptions = options.filter((option) =>
    option.name.toLowerCase().includes(searchText.toLowerCase()),
  )
  const selectedTagsLength = value.length

  return (
    <Popover open={open} onOpenChange={setOpen}>
      <PopoverTrigger
        nativeButton={false}
        render={
          <div
            className={cn(
              'flex h-8 cursor-pointer items-center rounded-lg bg-components-input-bg-normal px-2 py-1 text-text-tertiary hover:bg-state-base-hover-alt',
              selectedTagsLength && 'text-text-secondary',
              'data-popup-open:bg-state-base-hover',
            )}
          >
            <div className={cn('flex items-center p-1 system-sm-medium')}>
              {!selectedTagsLength && t(($) => $.allCategories, { ns: 'plugin' })}
              {!!selectedTagsLength &&
                value
                  .map((val) => categoriesMap[val]!.label)
                  .slice(0, 2)
                  .join(',')}
              {selectedTagsLength > 2 && (
                <div className="ml-1 system-xs-medium text-text-tertiary">
                  +{selectedTagsLength - 2}
                </div>
              )}
            </div>
            {!!selectedTagsLength && (
              <RiCloseCircleFill
                className="size-4 cursor-pointer text-text-quaternary"
                onClick={(e) => {
                  e.stopPropagation()
                  onChange([])
                }}
              />
            )}
            {!selectedTagsLength && <RiArrowDownSLine className="size-4" />}
          </div>
        }
      />
      <PopoverContent
        placement="bottom-start"
        sideOffset={4}
        popupClassName="border-none bg-transparent shadow-none"
      >
        <div className="w-[240px] rounded-xl border-[0.5px] border-components-panel-border bg-components-panel-bg-blur shadow-lg backdrop-blur-xs">
          <div className="p-2 pb-1">
            <Input
              showLeftIcon
              value={searchText}
              onChange={(e) => setSearchText(e.target.value)}
              placeholder={t(($) => $.searchCategories, { ns: 'plugin' })}
            />
          </div>
          <CheckboxGroup
            aria-label={t(($) => $.allCategories, { ns: 'plugin' })}
            value={value}
            onValueChange={(nextValue) => onChange(nextValue)}
            className="max-h-[448px] overflow-y-auto p-1"
          >
            {filteredOptions.map((option) => (
              <label
                key={option.name}
                className="flex h-7 cursor-pointer items-center rounded-lg px-2 py-1.5 hover:bg-state-base-hover"
              >
                <Checkbox className="mr-1" value={option.name} />
                <div className="px-1 system-sm-medium text-text-secondary">{option.label}</div>
              </label>
            ))}
          </CheckboxGroup>
        </div>
      </PopoverContent>
    </Popover>
  )
}

export default CategoriesFilter
