import { placements } from '@popperjs/core'
import {
  useAriaProps,
  useEmptyValuesProps,
  useSizeProp,
} from '@element-plus/hooks'
import {
  buildProps,
  definePropType,
  iconPropType,
  isNumber,
} from '@element-plus/utils'
import { CHANGE_EVENT, UPDATE_MODEL_EVENT } from '@element-plus/constants'
import { useTooltipContentProps } from '@element-plus/components/tooltip'
import { CircleClose } from '@element-plus/icons-vue'
import { tagProps } from '../../tag'
import { defaultProps } from './useProps'

import type { Option, OptionType } from './select.types'
import type { Props } from './useProps'
import type { EmitFn } from '@element-plus/utils/vue/typescript'
import type { ExtractPropTypes } from 'vue'
import type {
  Options,
  Placement,
  PopperEffect,
} from '@element-plus/components/popper'

export const SelectProps = buildProps({
  /**
   * @description whether creating new items is allowed. To use this, `filterable` must be true
   */
  allowCreate: Boolean,
  /**
   * @description autocomplete of select input
   */
  autocomplete: {
    type: definePropType<'none' | 'both' | 'list' | 'inline'>(String),
    default: 'none',
  },
  /**
   * @description for non-filterable Select, this prop decides if the option menu pops up when the input is focused
   */
  automaticDropdown: Boolean,
  /**
   * @description whether select can be cleared
   */
  clearable: Boolean,
  /**
   * @description custom clear icon
   */
  clearIcon: {
    type: iconPropType,
    default: CircleClose,
  },
  /**
   * @description tooltip theme, built-in theme: `dark` / `light`
   */
  effect: {
    type: definePropType<PopperEffect | string>(String),
    default: 'light',
  },
  /**
   * @description whether to collapse tags to a text when multiple selecting
   */
  collapseTags: Boolean,
  /**
   * @description whether show all selected tags when mouse hover text of collapse-tags. To use this, `collapse-tags` must be true
   */
  collapseTagsTooltip: Boolean,
  /**
   * @description The max tags number to be shown. To use this, `collapse-tags` must be true
   */
  maxCollapseTags: {
    type: Number,
    default: 1,
  },
  /**
   * @description
   */
  defaultFirstOption: Boolean,
  /**
   * @description is disabled
   */
  disabled: Boolean,
  /**
   * @description
   */
  estimatedOptionHeight: {
    type: Number,
    default: undefined,
  },
  /**
   * @description is filterable
   */
  filterable: Boolean,
  /**
   * @description
   */
  filterMethod: Function,
  /**
   * @description The height of the dropdown panel, 34px for each item
   */
  height: {
    type: Number,
    default: 274, // same as select dropdown menu
  },
  /**
   * @description The height of the dropdown item
   */
  itemHeight: {
    type: Number,
    default: 34,
  },
  /**
   * @description
   */
  id: String,
  /**
   * @description whether Select is loading data from server
   */
  loading: Boolean,
  /**
   * @description displayed text while loading data from server, default is 'Loading'
   */
  loadingText: String,
  /**
   * @description biding value
   */
  modelValue: {
    type: definePropType<
      any[] | string | number | boolean | Record<string, any> | any
    >([Array, String, Number, Boolean, Object]),
  },
  /**
   * @description is multiple
   */
  multiple: Boolean,
  /**
   * @description maximum number of options user can select when multiple is true. No limit when set to 0
   */
  multipleLimit: {
    type: Number,
    default: 0,
  },
  /**
   * @description the name attribute of select input
   */
  name: String,
  /**
   * @description displayed text when there is no options, you can also use slot empty, the default is 'No Data'
   */
  noDataText: String,
  /**
   * @description displayed text when no data matches the filtering query, you can also use slot `empty`, default is 'No matching data'
   */
  noMatchText: String,
  /**
   * @description function that gets called when the input value changes. Its parameter is the current input value. To use this, `filterable` must be true
   */
  remoteMethod: Function,
  /**
   * @description whether reserve the keyword after select filtered option.
   */
  reserveKeyword: {
    type: Boolean,
    default: true,
  },
  /**
   * @description data of the options, the key of `value` and `label` can be customize by `props`
   */
  options: {
    type: definePropType<OptionType[]>(Array),
    required: true,
  },
  /**
   * @description placeholder, the default is 'Please select'
   */
  placeholder: {
    type: String,
  },
  /**
   * @description whether select dropdown is teleported to the body
   */
  teleported: useTooltipContentProps.teleported,
  /**
   * @description when select dropdown is inactive and `persistent` is `false`, select dropdown will be destroyed
   */
  persistent: {
    type: Boolean,
    default: true,
  },
  /**
   * @description custom class name for Select's dropdown
   */
  popperClass: {
    type: String,
    default: '',
  },
  /**
   * @description [popper.js](https://popper.js.org/docs/v2/) parameters
   */
  popperOptions: {
    type: definePropType<Partial<Options>>(Object),
    default: () => ({}) as Partial<Options>,
  },
  /**
   * @description whether search data from server
   */
  remote: Boolean,
  /**
   * @description size of component
   */
  size: useSizeProp,
  /**
   * @description configuration options, see the following table
   */
  props: {
    type: definePropType<Props>(Object),
    default: () => defaultProps,
  },
  /**
   * @description unique identity key name for value, required when value is an object
   */
  valueKey: {
    type: String,
    default: 'value',
  },
  /**
   * @description Controls whether the scrollbar is always displayed
   */
  scrollbarAlwaysOn: Boolean,
  /**
   * @description whether to trigger form validation
   */
  validateEvent: {
    type: Boolean,
    default: true,
  },
  /**
   * @description position of dropdown
   */
  placement: {
    type: definePropType<Placement>(String),
    values: placements,
    default: 'bottom-start',
  },
  /**
   * @description list of possible positions for dropdown
   */
  fallbackPlacements: {
    type: definePropType<Placement[]>(Array),
    default: ['bottom-start', 'top-start', 'right', 'left'],
  },
  /**
   * @description tag type
   */
  tagType: { ...tagProps.type, default: 'info' },
  /**
   * @description tag effect
   */
  tagEffect: { ...tagProps.effect, default: 'light' },
  ...useEmptyValuesProps,
  ...useAriaProps(['ariaLabel']),
} as const)

export const OptionProps = buildProps({
  data: Array,
  disabled: Boolean,
  hovering: Boolean,
  item: {
    type: definePropType<Option>(Object),
    required: true,
  },
  index: Number,
  style: Object,
  selected: Boolean,
  created: Boolean,
} as const)

/* eslint-disable @typescript-eslint/no-unused-vars */
export const selectEmits = {
  [UPDATE_MODEL_EVENT]: (val: ISelectV2Props['modelValue']) => true,
  [CHANGE_EVENT]: (val: ISelectV2Props['modelValue']) => true,
  'remove-tag': (val: unknown) => true,
  'visible-change': (visible: boolean) => true,
  focus: (evt: FocusEvent) => evt instanceof FocusEvent,
  blur: (evt: FocusEvent) => evt instanceof FocusEvent,
  clear: () => true,
}
export const optionEmits = {
  hover: (index?: number) => isNumber(index),
  select: (val: Option, index?: number) => true,
}
/* eslint-enable @typescript-eslint/no-unused-vars */

export type ISelectV2Props = ExtractPropTypes<typeof SelectProps>
export type IOptionV2Props = ExtractPropTypes<typeof OptionProps>
export type SelectEmitFn = EmitFn<typeof selectEmits>
export type OptionEmitFn = EmitFn<typeof optionEmits>