import warning from 'warning';
import omit from 'omit.js';
import PropTypes from '../_util/vue-types';
import { Select as VcSelect, Option, OptGroup } from '../vc-select';
import LocaleReceiver from '../locale-provider/LocaleReceiver';
import defaultLocale from '../locale-provider/default';
import {
  getComponentFromProp,
  getOptionProps,
  filterEmpty,
  isValidElement,
} from '../_util/props-util';
import Icon from '../icon';
import { cloneElement } from '../_util/vnode';

const AbstractSelectProps = () => ({
  prefixCls: PropTypes.string,
  size: PropTypes.oneOf(['small', 'large', 'default']),
  showAction: PropTypes.oneOfType([PropTypes.string, PropTypes.arrayOf(String)]),
  notFoundContent: PropTypes.any,
  transitionName: PropTypes.string,
  choiceTransitionName: PropTypes.string,
  showSearch: PropTypes.bool,
  allowClear: PropTypes.bool,
  disabled: PropTypes.bool,
  tabIndex: PropTypes.number,
  placeholder: PropTypes.any,
  defaultActiveFirstOption: PropTypes.bool,
  dropdownClassName: PropTypes.string,
  dropdownStyle: PropTypes.any,
  dropdownMenuStyle: PropTypes.any,
  dropdownMatchSelectWidth: PropTypes.bool,
  // onSearch: (value: string) => any,
  filterOption: PropTypes.oneOfType([PropTypes.bool, PropTypes.func]),
  autoFocus: PropTypes.bool,
  backfill: PropTypes.bool,
  showArrow: PropTypes.bool,
  getPopupContainer: PropTypes.func,
  open: PropTypes.bool,
  defaultOpen: PropTypes.bool,
  autoClearSearchValue: PropTypes.bool,
  dropdownRender: PropTypes.func,
  loading: PropTypes.bool,
});
const Value = PropTypes.shape({
  key: PropTypes.string,
}).loose;

const SelectValue = PropTypes.oneOfType([
  PropTypes.string,
  PropTypes.number,
  PropTypes.arrayOf(PropTypes.oneOfType([Value, PropTypes.string, PropTypes.number])),
  Value,
]);

const SelectProps = {
  ...AbstractSelectProps(),
  value: SelectValue,
  defaultValue: SelectValue,
  // mode: PropTypes.oneOf(['default', 'multiple', 'tags', 'combobox']),
  mode: PropTypes.string,
  optionLabelProp: PropTypes.string,
  firstActiveValue: PropTypes.oneOfType([String, PropTypes.arrayOf(String)]),
  maxTagCount: PropTypes.number,
  maxTagPlaceholder: PropTypes.any,
  dropdownMatchSelectWidth: PropTypes.bool,
  optionFilterProp: PropTypes.string,
  labelInValue: PropTypes.boolean,
  getPopupContainer: PropTypes.func,
  tokenSeparators: PropTypes.arrayOf(PropTypes.string),
  getInputElement: PropTypes.func,
  options: PropTypes.array,
  suffixIcon: PropTypes.any,
  removeIcon: PropTypes.any,
  clearIcon: PropTypes.any,
  menuItemSelectedIcon: PropTypes.any,
};

const SelectPropTypes = {
  prefixCls: PropTypes.string,
  size: PropTypes.oneOf(['default', 'large', 'small']),
  // combobox: PropTypes.bool,
  notFoundContent: PropTypes.any,
  showSearch: PropTypes.bool,
  optionLabelProp: PropTypes.string,
  transitionName: PropTypes.string,
  choiceTransitionName: PropTypes.string,
};

export { AbstractSelectProps, SelectValue, SelectProps };
const SECRET_COMBOBOX_MODE_DO_NOT_USE = 'SECRET_COMBOBOX_MODE_DO_NOT_USE';
const Select = {
  SECRET_COMBOBOX_MODE_DO_NOT_USE,
  Option: { ...Option, name: 'ASelectOption' },
  OptGroup: { ...OptGroup, name: 'ASelectOptGroup' },
  name: 'ASelect',
  props: {
    ...SelectProps,
    prefixCls: PropTypes.string.def('ant-select'),
    showSearch: PropTypes.bool.def(false),
    transitionName: PropTypes.string.def('slide-up'),
    choiceTransitionName: PropTypes.string.def('zoom'),
  },
  propTypes: SelectPropTypes,
  model: {
    prop: 'value',
    event: 'change',
  },
  inject: {
    configProvider: { default: () => ({}) },
  },
  created() {
    warning(
      this.$props.mode !== 'combobox',
      'The combobox mode of Select is deprecated,' +
        'it will be removed in next major version,' +
        'please use AutoComplete instead',
    );
  },
  methods: {
    focus() {
      this.$refs.vcSelect.focus();
    },
    blur() {
      this.$refs.vcSelect.blur();
    },
    getNotFoundContent(locale) {
      const notFoundContent = getComponentFromProp(this, 'notFoundContent');
      if (this.isCombobox()) {
        // AutoComplete don't have notFoundContent defaultly
        return notFoundContent === undefined ? null : notFoundContent;
      }
      return notFoundContent === undefined ? locale.notFoundContent : notFoundContent;
    },
    isCombobox() {
      const { mode } = this;
      return mode === 'combobox' || mode === SECRET_COMBOBOX_MODE_DO_NOT_USE;
    },

    renderSuffixIcon() {
      const { prefixCls, loading } = this.$props;
      let suffixIcon = getComponentFromProp(this, 'suffixIcon');
      suffixIcon = Array.isArray(suffixIcon) ? suffixIcon[0] : suffixIcon;
      if (suffixIcon) {
        return isValidElement(suffixIcon)
          ? cloneElement(suffixIcon, { class: `${prefixCls}-arrow-icon` })
          : suffixIcon;
      }
      if (loading) {
        return <Icon type="loading" />;
      }
      return <Icon type="down" class={`${prefixCls}-arrow-icon`} />;
    },

    renderSelect(locale) {
      const { prefixCls, size, mode, options, getPopupContainer, ...restProps } = getOptionProps(
        this,
      );
      const { getPopupContainer: getContextPopupContainer } = this.configProvider;
      let removeIcon = getComponentFromProp(this, 'removeIcon');
      removeIcon = Array.isArray(removeIcon) ? removeIcon[0] : removeIcon;
      let clearIcon = getComponentFromProp(this, 'clearIcon');
      clearIcon = Array.isArray(clearIcon) ? clearIcon[0] : clearIcon;
      let menuItemSelectedIcon = getComponentFromProp(this, 'menuItemSelectedIcon');
      menuItemSelectedIcon = Array.isArray(menuItemSelectedIcon)
        ? menuItemSelectedIcon[0]
        : menuItemSelectedIcon;
      const rest = omit(restProps, [
        'inputIcon',
        'removeIcon',
        'clearIcon',
        'suffixIcon',
        'menuItemSelectedIcon',
      ]);

      const cls = {
        [`${prefixCls}-lg`]: size === 'large',
        [`${prefixCls}-sm`]: size === 'small',
      };

      let { optionLabelProp } = this.$props;
      if (this.isCombobox()) {
        // children 带 dom 结构时，无法填入输入框
        optionLabelProp = optionLabelProp || 'value';
      }

      const modeConfig = {
        multiple: mode === 'multiple',
        tags: mode === 'tags',
        combobox: this.isCombobox(),
      };
      const finalRemoveIcon = (removeIcon &&
        (isValidElement(removeIcon)
          ? cloneElement(removeIcon, { class: `${prefixCls}-remove-icon` })
          : removeIcon)) || <Icon type="close" class={`${prefixCls}-remove-icon`} />;

      const finalClearIcon = (clearIcon &&
        (isValidElement(clearIcon)
          ? cloneElement(clearIcon, { class: `${prefixCls}-clear-icon` })
          : clearIcon)) || (
        <Icon type="close-circle" theme="filled" class={`${prefixCls}-clear-icon`} />
      );

      const finalMenuItemSelectedIcon = (menuItemSelectedIcon &&
        (isValidElement(menuItemSelectedIcon)
          ? cloneElement(menuItemSelectedIcon, { class: `${prefixCls}-selected-icon` })
          : menuItemSelectedIcon)) || <Icon type="check" class={`${prefixCls}-selected-icon`} />;

      const selectProps = {
        props: {
          inputIcon: this.renderSuffixIcon(),
          removeIcon: finalRemoveIcon,
          clearIcon: finalClearIcon,
          menuItemSelectedIcon: finalMenuItemSelectedIcon,
          ...rest,
          ...modeConfig,
          prefixCls,
          optionLabelProp: optionLabelProp || 'children',
          notFoundContent: this.getNotFoundContent(locale),
          maxTagPlaceholder: getComponentFromProp(this, 'maxTagPlaceholder'),
          placeholder: getComponentFromProp(this, 'placeholder'),
          children: options
            ? options.map(option => {
                const { key, label = option.title, on, class: cls, style, ...restOption } = option;
                return (
                  <Option key={key} {...{ props: restOption, on, class: cls, style }}>
                    {label}
                  </Option>
                );
              })
            : filterEmpty(this.$slots.default),
          __propsSymbol__: Symbol(),
          dropdownRender: getComponentFromProp(this, 'dropdownRender', {}, false),
          getPopupContainer: getPopupContainer || getContextPopupContainer,
        },
        on: this.$listeners,
        class: cls,
        ref: 'vcSelect',
      };
      return <VcSelect {...selectProps} />;
    },
  },
  render() {
    return (
      <LocaleReceiver
        componentName="Select"
        defaultLocale={defaultLocale.Select}
        scopedSlots={{ default: this.renderSelect }}
      />
    );
  },
};

/* istanbul ignore next */
Select.install = function(Vue) {
  Vue.component(Select.name, Select);
  Vue.component(Select.Option.name, Select.Option);
  Vue.component(Select.OptGroup.name, Select.OptGroup);
};

export default Select;