'use strict';

exports.__esModule = true;

var _util = require('element-ui/lib/utils/util');

/**
 * Show migrating guide in browser console.
 *
 * Usage:
 * import Migrating from 'element-ui/src/mixins/migrating';
 *
 * mixins: [Migrating]
 *
 * add getMigratingConfig method for your component.
 *  getMigratingConfig() {
 *    return {
 *      props: {
 *        'allow-no-selection': 'allow-no-selection is removed.',
 *        'selection-mode': 'selection-mode is removed.'
 *      },
 *      events: {
 *        selectionchange: 'selectionchange is renamed to selection-change.'
 *      }
 *    };
 *  },
 */
exports.default = {
    mounted: function mounted() {
        if (process.env.NODE_ENV === 'production') return;
        if (!this.$vnode) return;

        var _getMigratingConfig = this.getMigratingConfig(),
            _getMigratingConfig$p = _getMigratingConfig.props,
            props = _getMigratingConfig$p === undefined ? {} : _getMigratingConfig$p,
            _getMigratingConfig$e = _getMigratingConfig.events,
            events = _getMigratingConfig$e === undefined ? {} : _getMigratingConfig$e;

        var _$vnode = this.$vnode,
            data = _$vnode.data,
            componentOptions = _$vnode.componentOptions;

        var definedProps = data.attrs || {};
        var definedEvents = componentOptions.listeners || {};

        for (var propName in definedProps) {
            propName = (0, _util.kebabCase)(propName); // compatible with camel case
            if (props[propName]) {
                console.warn('[Element Migrating][' + this.$options.name + '][Attribute]: ' + props[propName]);
            }
        }

        for (var eventName in definedEvents) {
            eventName = (0, _util.kebabCase)(eventName); // compatible with camel case
            if (events[eventName]) {
                console.warn('[Element Migrating][' + this.$options.name + '][Event]: ' + events[eventName]);
            }
        }
    },

    methods: {
        getMigratingConfig: function getMigratingConfig() {
            return {
                props: {},
                events: {}
            };
        }
    }
};