<?php
/**
 * Accessible Zen Theme Customizer.
 *
 * @package accessiblezen
 * @since accessiblezen 1.0
 */

/**
 * Add postMessage support for site title and description for the Theme Customizer.
 *
 * @param WP_Customize_Manager $wp_customize Theme Customizer object.
 *
 * @since accessiblezen 1.0
 */
function accessiblezen_customize_register( $wp_customize ) {
	$wp_customize->get_setting( 'blogname' )->transport        = 'postMessage';
	$wp_customize->get_setting( 'blogdescription' )->transport = 'postMessage';
	$wp_customize->get_setting( 'background_color' )->transport = 'postMessage';

	// Hide the site/blog description
	$wp_customize->add_setting( 'displayblogname', array(
		'sanitize_callback' => 'displayblogname_sanitize_checkbox',
		'capability' => 'edit_theme_options',
	) );
	$wp_customize->add_control( new WP_Customize_Control( $wp_customize, 'displayblogname', array(
	'label'	=> __( 'Hide Site Tagline', 'accessiblezen' ),
	'section'  => 'title_tagline',
	'settings' => 'displayblogname',
	'type'     => 'checkbox',
) ) );

function displayblogname_sanitize_checkbox( $displayblognameinput ) {

    if ( $displayblognameinput == 1 ) {
        return 1;
    } else {
        return '';
    }
}

    // Choose excerpt or full content on blog
    $wp_customize->add_section( 'accessiblezen_layout_section' , array(
		'title' => __( 'Content', 'accessiblezen' ),
		'priority' => 30,
		'description' => 'Change how Accessible Zen displays posts',
		) );
		$wp_customize->add_setting( 'accessiblezen_post_content', array(
		'default'	=> 'option2',
		'sanitize_callback' => 'accessiblezen_post_content_sanitize_radio_buttons',
		'capability' => 'edit_theme_options',
		) );
		$wp_customize->add_control( new WP_Customize_Control( $wp_customize, 'accessiblezen_post_content', array(
		'label'	=> __( 'Post content', 'accessiblezen' ),
		'section'	=> 'accessiblezen_layout_section',
		'settings'	=> 'accessiblezen_post_content',
		'type'	=> 'radio',
		'choices'	=> array(
		'option1'	=> 'Excerpts',
		'option2'	=> 'Full content',
		),
) ) );

function accessiblezen_post_content_sanitize_radio_buttons( $postcontentinput ) {
    $valid = array(
        'option1'	=> 'Excerpts',
		'option2'	=> 'Full content',
    );

    if ( array_key_exists( $postcontentinput, $valid ) ) {
        return $postcontentinput;
    } else {
        return '';
    }
}

// Show more posts link on Front Page template
	$wp_customize->add_setting(
    'show_more_posts_link',
    array(
        'default' => null,
		'capability' => 'edit_theme_options',
		'sanitize_callback' => 'accessiblezen_sanitize_dropdown_integer',
    )
);

$wp_customize->add_control(
		 new WP_Customize_Control( $wp_customize, 'show_more_posts_link', array(
				'label' => __( 'Link to this page in Read More Posts on Front Page Template', 'accessiblezen' ),
				'section' => 'static_front_page',
				'type'       => 'dropdown-pages',
				'settings' => 'show_more_posts_link',
			)
		)
	);

function accessiblezen_sanitize_dropdown_integer( $dropdownintegerinput ) {
    if( is_numeric( $dropdownintegerinput ) ) {
        return intval( $dropdownintegerinput );
    }
}

}
add_action( 'customize_register', 'accessiblezen_customize_register' );

/**
 * Binds JS handlers to make Theme Customizer preview reload changes asynchronously.
 *
 * @since accessiblezen 1.0
 */
function accessiblezen_customize_preview_js() {
	wp_enqueue_script( 'accessiblezen_customizer', get_template_directory_uri() . '/js/customizer.js', array( 'customize-preview' ), '20120827', true );
}
add_action( 'customize_preview_init', 'accessiblezen_customize_preview_js' );

/**
 * Load extra jQuery script to theme customizer page to toggle options.
 *
 * @since accessiblezen 1.0
 */
function modify_customize_preview_page_script() {
	wp_enqueue_script( 'modify-customize-preview-page-script', get_template_directory_uri() . '/js/modify-customize-preview-page.js',
		array( 'jquery' ), '20120827', true );
}
// Action will load script to customizer.php only.
add_action( 'customize_controls_print_footer_scripts', 'modify_customize_preview_page_script' );

/**
 * Add contextual help to the Themes screens.
 *
 * @since accessiblezen 1.0
 *
 * @return void
 */
function accessiblezen_contextual_help() {
	if ( 'admin_head-edit.php' === current_filter() && 'post' !== $GLOBALS['typenow'] ) {
		return;
	}

	get_current_screen()->add_help_tab( array(
		'id'      => 'accessiblezen',
		'title'   => __( 'Accessible Zen', 'accessiblezen' ),
		'content' =>
			'<ul>' .
				'<li>' . sprintf( __( 'Accessible Zen uses the WordPress Theme Customizer to allow you to adjust several settings, including showing/hiding the site tagline, displaying post excerpts and much more. Get started customizing the theme under <a href="%s">Appearance &rarr; Customize</a>.', 'accessiblezen' ), admin_url( 'customize.php' ) ) . '</li>' .
				'<li>' . sprintf( __( 'If you have questions about the theme, want to suggest a new feature or need support, visit the <a href="%s">Accessible Zen support forum</a>.', 'accessiblezen' ), 'http://wordpress.org/support/theme/accessible-zen' ) . '</li>' .
				'<li>' . sprintf( __( 'For in-depth documentation on Accessible Zen, see the file bundled with the theme called <code>accessible-zen-documentation</code>, or view it <a href="%s">in the Github repository</a>.', 'accessiblezen' ), 'https://github.com/davidakennedy/accessible-zen/blob/master/accessible-zen-documentation.md' ) . '</li>' .
			'</ul>',
	) );
}
add_action( 'admin_head-themes.php', 'accessiblezen_contextual_help' );