dify/web/app/components/base/select/index.tsx

'use client'
import type { FC } from 'react'
import React, { useEffect, useRef, useState } from 'react'
import { Combobox, ComboboxButton, ComboboxInput, ComboboxOption, ComboboxOptions, Listbox, ListboxButton, ListboxOption, ListboxOptions } from '@headlessui/react'
import { ChevronDownIcon, ChevronUpIcon, XMarkIcon } from '@heroicons/react/20/solid'
import Badge from '../badge/index'
import { RiCheckLine, RiLoader4Line } from '@remixicon/react'
import { useTranslation } from 'react-i18next'
import classNames from '@/utils/classnames'
import {
  PortalToFollowElem,
  PortalToFollowElemContent,
  PortalToFollowElemTrigger,
} from '@/app/components/base/portal-to-follow-elem'

const defaultItems = [
  { value: 1, name: 'option1' },
  { value: 2, name: 'option2' },
  { value: 3, name: 'option3' },
  { value: 4, name: 'option4' },
  { value: 5, name: 'option5' },
  { value: 6, name: 'option6' },
  { value: 7, name: 'option7' },
]

export type Item = {
  value: number | string
  name: string
} & Record<string, any>

export type ISelectProps = {
  className?: string
  wrapperClassName?: string
  renderTrigger?: (value: Item | null) => React.JSX.Element | null
  items?: Item[]
  defaultValue?: number | string
  disabled?: boolean
  onSelect: (value: Item) => void
  allowSearch?: boolean
  bgClassName?: string
  placeholder?: string
  overlayClassName?: string
  optionWrapClassName?: string
  optionClassName?: string
  hideChecked?: boolean
  notClearable?: boolean
  renderOption?: ({
    item,
    selected,
  }: {
    item: Item
    selected: boolean
  }) => React.ReactNode
  isLoading?: boolean
  onOpenChange?: (open: boolean) => void
}
const Select: FC<ISelectProps> = ({
  className,
  items = defaultItems,
  defaultValue = 1,
  disabled = false,
  onSelect,
  allowSearch = true,
  bgClassName = 'bg-components-input-bg-normal',
  overlayClassName,
  optionClassName,
  renderOption,
}) => {
  const [query, setQuery] = useState('')
  const [open, setOpen] = useState(false)

  const [selectedItem, setSelectedItem] = useState<Item | null>(null)
  useEffect(() => {
    let defaultSelect = null
    const existed = items.find((item: Item) => item.value === defaultValue)
    if (existed)
      defaultSelect = existed

    setSelectedItem(defaultSelect)
  }, [defaultValue])

  const filteredItems: Item[]
    = query === ''
      ? items
      : items.filter((item) => {
        return item.name.toLowerCase().includes(query.toLowerCase())
      })

  return (
    <Combobox
      as="div"
      disabled={disabled}
      value={selectedItem}
      className={className}
      onChange={(value: Item) => {
        if (!disabled) {
          setSelectedItem(value)
          setOpen(false)
          onSelect(value)
        }
      }}>
      <div className={classNames('relative')}>
        <div className='group text-text-secondary'>
          {allowSearch
            ? <ComboboxInput
              className={`w-full rounded-lg border-0 ${bgClassName} py-1.5 pl-3 pr-10 shadow-sm focus-visible:bg-state-base-hover focus-visible:outline-none group-hover:bg-state-base-hover sm:text-sm sm:leading-6 ${disabled ? 'cursor-not-allowed' : 'cursor-pointer'}`}
              onChange={(event) => {
                if (!disabled)
                  setQuery(event.target.value)
              }}
              displayValue={(item: Item) => item?.name}
            />
            : <ComboboxButton onClick={
              () => {
                if (!disabled)
                  setOpen(!open)
              }
            } className={classNames(`flex h-9 w-full items-center rounded-lg border-0 ${bgClassName} py-1.5 pl-3 pr-10 shadow-sm focus-visible:bg-state-base-hover focus-visible:outline-none group-hover:bg-state-base-hover sm:text-sm sm:leading-6`, optionClassName)}>
              <div className='w-0 grow truncate text-left' title={selectedItem?.name}>{selectedItem?.name}</div>
            </ComboboxButton>}
          <ComboboxButton className="absolute inset-y-0 right-0 flex items-center rounded-r-md px-2 focus:outline-none" onClick={
            () => {
              if (!disabled)
                setOpen(!open)
            }
          }>
            {open ? <ChevronUpIcon className="h-5 w-5" /> : <ChevronDownIcon className="h-5 w-5" />}
          </ComboboxButton>
        </div>

        {(filteredItems.length > 0 && open) && (
          <ComboboxOptions className={`absolute z-10 mt-1 max-h-60 w-full overflow-auto rounded-md border-[0.5px] border-components-panel-border bg-components-panel-bg-blur px-1 py-1 text-base shadow-lg backdrop-blur-sm focus:outline-none sm:text-sm ${overlayClassName}`}>
            {filteredItems.map((item: Item) => (
              <ComboboxOption
                key={item.value}
                value={item}
                className={({ active }: { active: boolean }) =>
                  classNames(
                    'relative cursor-default select-none rounded-lg py-2 pl-3 pr-9 text-text-secondary hover:bg-state-base-hover',
                    active ? 'bg-state-base-hover' : '',
                    optionClassName,
                  )
                }
              >
                {({ /* active, */ selected }) => (
                  <>
                    {renderOption
                      ? renderOption({ item, selected })
                      : (
                        <>
                          <span className={classNames('block', selected && 'font-normal')}>{item.name}</span>
                          {selected && (
                            <span
                              className={classNames(
                                'absolute inset-y-0 right-0 flex items-center pr-4 text-text-secondary',
                              )}
                            >
                              <RiCheckLine className="h-4 w-4" aria-hidden="true" />
                            </span>
                          )}
                        </>
                      )}
                  </>
                )}
              </ComboboxOption>
            ))}
          </ComboboxOptions>
        )}
      </div>
    </Combobox >
  )
}

const SimpleSelect: FC<ISelectProps> = ({
  className,
  wrapperClassName = '',
  renderTrigger,
  items = defaultItems,
  defaultValue = 1,
  disabled = false,
  onSelect,
  onOpenChange,
  placeholder,
  optionWrapClassName,
  optionClassName,
  hideChecked,
  notClearable,
  renderOption,
  isLoading = false,
}) => {
  const { t } = useTranslation()
  const localPlaceholder = placeholder || t('common.placeholder.select')

  const [selectedItem, setSelectedItem] = useState<Item | null>(null)

  useEffect(() => {
    let defaultSelect = null
    const existed = items.find((item: Item) => item.value === defaultValue)
    if (existed)
      defaultSelect = existed

    setSelectedItem(defaultSelect)
  }, [defaultValue])

  const listboxRef = useRef<HTMLDivElement>(null)

  return (
    <Listbox ref={listboxRef}
      value={selectedItem}
      onChange={(value: Item) => {
        if (!disabled) {
          setSelectedItem(value)
          onSelect(value)
        }
      }}
    >
      <div className={classNames('group/simple-select relative h-9', wrapperClassName)}>
        {renderTrigger && <ListboxButton className='w-full'>{renderTrigger(selectedItem)}</ListboxButton>}
        {!renderTrigger && (
          <ListboxButton onClick={() => {
              // get data-open, use setTimeout to ensure the attribute is set
              setTimeout(() => {
                if (listboxRef.current)
                  onOpenChange?.(listboxRef.current.getAttribute('data-open') !== null)
              })
          }} className={classNames(`flex h-full w-full items-center rounded-lg border-0 bg-components-input-bg-normal pl-3 pr-10 focus-visible:bg-state-base-hover-alt focus-visible:outline-none group-hover/simple-select:bg-state-base-hover-alt sm:text-sm sm:leading-6 ${disabled ? 'cursor-not-allowed' : 'cursor-pointer'}`, className)}>
            <span className={classNames('system-sm-regular block truncate text-left text-components-input-text-filled', !selectedItem?.name && 'text-components-input-text-placeholder')}>{selectedItem?.name ?? localPlaceholder}</span>
            <span className="absolute inset-y-0 right-0 flex items-center pr-2">
              {isLoading ? <RiLoader4Line className='h-3.5 w-3.5 animate-spin text-text-secondary' />
              : (selectedItem && !notClearable)
                ? (
                  <XMarkIcon
                    onClick={(e) => {
                      e.stopPropagation()
                      setSelectedItem(null)
                      onSelect({ name: '', value: '' })
                    }}
                    className="h-4 w-4 cursor-pointer text-text-quaternary"
                    aria-hidden="false"
                  />
                )
                : (
                  <ChevronDownIcon
                    className="h-4 w-4 text-text-quaternary group-hover/simple-select:text-text-secondary"
                    aria-hidden="true"
                  />
                )}
            </span>
          </ListboxButton>
        )}

        {(!disabled) && (
          <ListboxOptions className={classNames('absolute z-10 mt-1 max-h-60 w-full overflow-auto rounded-xl border-[0.5px] border-components-panel-border bg-components-panel-bg-blur px-1 py-1 text-base shadow-lg backdrop-blur-sm focus:outline-none sm:text-sm', optionWrapClassName)}>
            {items.map((item: Item) => (
              <ListboxOption
                key={item.value}
                className={
                  classNames(
                    'relative cursor-pointer select-none rounded-lg py-2 pl-3 pr-9 text-text-secondary hover:bg-state-base-hover',
                    optionClassName,
                  )
                }
                value={item}
                disabled={disabled}
              >
                {({ /* active, */ selected }) => (
                  <>
                    {renderOption
                      ? renderOption({ item, selected })
                      : (<>
                        <span className={classNames('block', selected && 'font-normal')}>{item.name}</span>
                        {selected && !hideChecked && (
                          <span
                            className={classNames(
                              'absolute inset-y-0 right-0 flex items-center pr-4 text-text-accent',
                            )}
                          >
                            <RiCheckLine className="h-4 w-4" aria-hidden="true" />
                          </span>
                        )}
                      </>)}
                  </>
                )}
              </ListboxOption>
            ))}
          </ListboxOptions>
        )}
      </div>
    </Listbox>
  )
}

type PortalSelectProps = {
  value: string | number
  onSelect: (value: Item) => void
  items: Item[]
  placeholder?: string
  installedValue?: string | number
  renderTrigger?: (value?: Item) => React.JSX.Element | null
  triggerClassName?: string
  triggerClassNameFn?: (open: boolean) => string
  popupClassName?: string
  popupInnerClassName?: string
  readonly?: boolean
  hideChecked?: boolean
}
const PortalSelect: FC<PortalSelectProps> = ({
  value,
  onSelect,
  items,
  placeholder,
  installedValue,
  renderTrigger,
  triggerClassName,
  triggerClassNameFn,
  popupClassName,
  popupInnerClassName,
  readonly,
  hideChecked,
}) => {
  const { t } = useTranslation()
  const [open, setOpen] = useState(false)
  const localPlaceholder = placeholder || t('common.placeholder.select')
  const selectedItem = value ? items.find(item => item.value === value) : undefined

  return (
    <PortalToFollowElem
      open={open}
      onOpenChange={setOpen}
      placement='bottom-start'
      offset={4}
    >
      <PortalToFollowElemTrigger onClick={() => !readonly && setOpen(v => !v)} className='w-full'>
        {renderTrigger
          ? renderTrigger(selectedItem)
          : (
            <div
              className={classNames(`
            group flex h-9 items-center justify-between rounded-lg border-0 bg-components-input-bg-normal px-2.5 text-sm hover:bg-state-base-hover-alt ${readonly ? 'cursor-not-allowed' : 'cursor-pointer'}
          `, triggerClassName, triggerClassNameFn?.(open))}
              title={selectedItem?.name}
            >
              <span
                className={`
              grow truncate text-text-secondary
              ${!selectedItem?.name && 'text-components-input-text-placeholder'}
            `}
              >
                {selectedItem?.name ?? localPlaceholder}
              </span>
              <div className='mx-0.5'>{installedValue && selectedItem && selectedItem.value !== installedValue && <Badge>{installedValue} {'->'} {selectedItem.value} </Badge>}</div>
              <ChevronDownIcon className='h-4 w-4 shrink-0 text-text-quaternary group-hover:text-text-secondary' />
            </div>
          )}

      </PortalToFollowElemTrigger>
      <PortalToFollowElemContent className={`z-20 ${popupClassName}`}>
        <div
          className={classNames('max-h-60 overflow-auto rounded-md border-[0.5px] border-components-panel-border bg-components-panel-bg px-1 py-1 text-base shadow-lg focus:outline-none sm:text-sm', popupInnerClassName)}
        >
          {items.map((item: Item) => (
            <div
              key={item.value}
              className={`
                flex h-9 cursor-pointer items-center justify-between rounded-lg px-2.5 text-text-secondary hover:bg-state-base-hover
                ${item.value === value && 'bg-state-base-hover'}
              `}
              title={item.name}
              onClick={() => {
                onSelect(item)
                setOpen(false)
              }}
            >
              <span
                className='w-0 grow truncate'
                title={item.name}
              >
                <span className='truncate'>{item.name}</span>
                {item.value === installedValue && (
                  <Badge uppercase={true} className='ml-1 shrink-0'>INSTALLED</Badge>
                )}
              </span>
              {!hideChecked && item.value === value && (
                <RiCheckLine className='h-4 w-4 shrink-0 text-text-accent' />
              )}
            </div>
          ))}
        </div>
      </PortalToFollowElemContent>
    </PortalToFollowElem>
  )
}
export { SimpleSelect, PortalSelect }
export default React.memo(Select)