import React from 'react';
import _ from 'lodash';
import classNames from 'classnames';

import PerformanceMixin from '../../mixins/PerformanceMixin';
import Button from '../../elements/Button/Button';
import {
    Card,
    CardTitle,
    CardMenu,
    CardContent,
    CardActions,
} from '../../elements/Card';

/**
 * This Component creates a customizable dialog.
 */
const BaseDialog = React.createClass({
    mixins: [PerformanceMixin],
    displayName: 'BaseDialog',

    // define property types
    propTypes: {
        /**
         * Define if dialog is displayed.
         */
        active: React.PropTypes.bool.isRequired,
        /**
         * Custom dialog classname.
         */
        className: React.PropTypes.string,
        /**
         * Defines dialog as modal.
         */
        modal: React.PropTypes.bool,
        /**
         * Size of dialog.
         */
        size: React.PropTypes.string,
        /**
         * Contain buttons for action row.
         */
        buttonRow: React.PropTypes.arrayOf(React.PropTypes.element).isRequired,
        /**
         * Title of dialog.
         */
        title: React.PropTypes.node,
        /**
         * Add cancel button to title.
         */
        titleCancelButton: React.PropTypes.func,
    },

    // template rendering
    render() {
        const {
            active,
            className,
            modal,
            size,
            buttonRow,
            title,
            titleCancelButton,
            ...otherProps
        } = this.props;

        if (active !== true) {
            return false;
        }

        // set classname
        const classes = classNames(
            'mdl-dialog',
            {
                'is-activated': active === true,
                'mdl-dialog--modal': modal === true,
                'mdl-dialog--mini': size === 'mini',
                'mdl-dialog--large': size === 'large',
            },
            className
        );

        // set modal
        let modalbg = false;
        if (modal === true) {
            modalbg = <div className="mdl-dialog__modalbackground" />;
        }

        // set title cancel Button
        const cancelButton = titleCancelButton ? (
            <CardMenu>
                <Button
                    className="mdl-dialog__title__close-button"
                    tooltip="Close"
                    iconName="hide"
                    onClick={titleCancelButton}
                />
            </CardMenu>
        ) : (
            false
        );
        // set title
        const dialogTitle = title ? (
            <CardTitle documentLevel="h1" className="mdl-dialog__title">
                <h1 className="mdl-card__title-text">{title}</h1>
                {cancelButton}
            </CardTitle>
        ) : (
            false
        );

        // set content
        const content = this.props.children ? (
            <CardContent className="mdl-dialog__content">
                {this.props.children}
            </CardContent>
        ) : (
            false
        );

        // set button main layout
        const buttonLayout = {
            accent: true,
            colored: false,
            fabSize: '',
        };
        // set buttons
        const rowActions = buttonRow.reverse().map((button, idx) => {
            const key = `Button_${_.get(button, 'key', idx)}`;
            return (
                <span
                    className={`mdl-dialog__actions__${idx}-button`}
                    key={key}>
                    {React.cloneElement(button, buttonLayout)}
                </span>
            );
        });

        const actions = (
            <CardActions className="mdl-dialog__actions">
                {rowActions}
            </CardActions>
        );

        let containerClass = '';
        if (active === true) {
            containerClass = 'mdl-dialog__container';
        }

        // return complete dialog
        const dialog = (
            <div className={containerClass}>
                {modalbg}
                <Card className={classes} shadow={6} {...otherProps}>
                    {dialogTitle}
                    {content}
                    {actions}
                </Card>
            </div>
        );

        return dialog;
    },
});

export default BaseDialog;