import React from 'react';
import SilverStripeComponent from 'silverstripe-component';

class GridFieldComponent extends SilverStripeComponent {

    render() {
        return (
            <table className='grid-field-component [ table ]'>
                {this.generateHeader()}
                <tbody>
                    {this.generateRows()}
                </tbody>
            </table>
        );
    }

    /**
     * Generates the header component.
     *
     * Uses the header component passed via the `header` prop if it exists.
     * Otherwise generates a header from the `data` prop.
     *
     * @return object|null
     */
    generateHeader() {
        if (typeof this.props.header !== 'undefined') {
            return this.props.header;
        }

        if (typeof this.props.data !== 'undefined') {
            // TODO: Generate the header.
        }

        return null;
    }

    /**
     * Generates the table rows.
     *
     * Uses the components passed via the `rows` props if it exists.
     * Otherwise generates rows from the `data` prop.
     *
     * @return object|null
     */
    generateRows() {
        if (typeof this.props.rows !== 'undefined') {
            return this.props.rows;
        }

        if (typeof this.props.data !== 'undefined') {
            // TODO: Generate the rows.
        }

        return null;
    }

}

GridFieldComponent.propTypes = {
    data: React.PropTypes.object,
    header: React.PropTypes.object,
    rows: React.PropTypes.array
};

export default GridFieldComponent;