import PropTypes from '../_util/vue-types'
import VcCheckbox from '../vc-checkbox'
import classNames from 'classnames'
import { getOptionProps, getAttrs } from '../_util/props-util'

function noop () {}

export default {
  name: 'ARadio',
  props: {
    prefixCls: {
      default: 'ant-radio',
      type: String,
    },
    defaultChecked: Boolean,
    checked: { type: Boolean, default: undefined },
    disabled: Boolean,
    isGroup: Boolean,
    value: PropTypes.any,
    name: String,
    id: String,
    autoFocus: Boolean,
    type: PropTypes.string.def('radio'),
  },
  model: {
    prop: 'checked',
  },
  inject: {
    radioGroupContext: { default: undefined },
  },
  methods: {
    handleChange (event) {
      const targetChecked = event.target.checked
      this.$emit('input', targetChecked)
      this.$emit('change', event)
    },
    focus () {
      this.$refs.vcCheckbox.focus()
    },
    blur () {
      this.$refs.vcCheckbox.blur()
    },
  },

  render () {
    const { $slots, $listeners, radioGroupContext: radioGroup } = this
    const props = getOptionProps(this)
    const children = $slots.default
    const { mouseenter = noop, mouseleave = noop, ...restListeners } = $listeners
    const {
      prefixCls,
      ...restProps
    } = props
    const radioProps = { props: { ...restProps, prefixCls }, on: restListeners, attrs: getAttrs(this) }

    if (radioGroup) {
      radioProps.props.name = radioGroup.name
      radioProps.on.change = radioGroup.onRadioChange
      radioProps.props.checked = props.value === radioGroup.stateValue
      radioProps.props.disabled = props.disabled || radioGroup.disabled
    } else {
      radioProps.on.change = this.handleChange
    }
    const wrapperClassString = classNames({
      [`${prefixCls}-wrapper`]: true,
      [`${prefixCls}-wrapper-checked`]: radioProps.props.checked,
      [`${prefixCls}-wrapper-disabled`]: radioProps.props.disabled,
    })

    return (
      <label
        class={wrapperClassString}
        onMouseenter={mouseenter}
        onMouseleave={mouseleave}
      >
        <VcCheckbox
          {...radioProps}
          ref='vcCheckbox'
        />
        {children !== undefined ? <span>{children}</span> : null}
      </label>
    )
  },
}