<?php
/**
 * Theme Customizer
 *
 * @package p2020
 */

namespace Automattic\P2\Themes\P2020;

require get_template_directory() . '/inc/customizer/custom-header.php';
require get_template_directory() . '/inc/customizer/custom-colors.php';

/**
 * Site identity section. Contains blogname and blogdescription.
 *
 * @param \WP_Customize_Manager $wp_customize Theme Customizer object.
 */

function add_site_identity_section( \WP_Customize_Manager $wp_customize ) {
	$section_id = 'p2020_site_identity';

	$wp_customize->add_section(
		$section_id,
		array(
			'title'    => __( 'Name and description', 'p2020' ),
			'priority' => 1,
		)
	);

	/**
	 * We relocate the controls below to our new section.
	 */

	// Site Title
	$blogname           = $wp_customize->get_control( 'blogname' );
	$blogname->section  = $section_id;
	$blogname->priority = 1;

	// Rename Tagline to Description and convert to textarea type
	$blogdescription           = $wp_customize->get_control( 'blogdescription' );
	$blogdescription->section  = $section_id;
	$blogdescription->label    = __( 'Description', 'p2020' );
	$blogdescription->type     = 'textarea';
	$blogdescription->priority = 2;

	// Site Icon
	$site_icon           = $wp_customize->get_control( 'site_icon' );
	$site_icon->section  = $section_id;
	$site_icon->priority = 3;
}

/**
 * Advanced options section. Contains o2 options and contributors list control.
 *
 * @param \WP_Customize_Manager $wp_customize Theme Customizer object.
 */
function add_advanced_options_section( \WP_Customize_Manager $wp_customize ) {
	$section_id = 'p2020_advanced_options';
	$wp_customize->add_section(
		$section_id,
		array(
			'title'    => __( 'Advanced options', 'p2020' ),
			'priority' => $wp_customize->get_panel( 'widgets' )->priority + 1,
		)
	);

	// Add new setting and control for showing/hiding page contributors
	$wp_customize->add_setting(
		'p2020_hide_page_contributors',
		array(
			'default'   => false,
			'type'      => 'option',
			'transport' => 'refresh',
		)
	);
	$wp_customize->add_control(
		'p2020_hide_page_contributors',
		array(
			'label'   => __( 'Hide contributors list in pages', 'p2020' ),
			'section' => $section_id,
			'type'    => 'checkbox',
		)
	);

	// Add new setting and control for showing/hiding post link previews
	$wp_customize->add_setting(
		'p2020_hide_post_link_preview',
		array(
			'default'   => false,
			'type'      => 'option',
			'transport' => 'refresh',
		)
	);
	$wp_customize->add_control(
		'p2020_hide_post_link_preview',
		array(
			'label'   => __( 'Hide post link preview cards', 'p2020' ),
			'section' => $section_id,
			'type'    => 'checkbox',
		)
	);

	$wp_customize->get_control( 'o2_options[front_side_post_prompt]' )->section = $section_id;
}

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

	$wp_customize->selective_refresh->add_partial(
		'header_image',
		[
			'selector' => '#p2020-sidebar-header-image-container',
		],
	);

	if ( apply_filters( 'p2020_use_space_icon_layout', true ) ) {
		$wp_customize->selective_refresh->add_partial(
			'site_icon',
			[
				'selector' => '#p2020-sidebar-site-icon-container',
			]
		);
	}

	add_site_identity_section( $wp_customize );

	add_advanced_options_section( $wp_customize );

	// Move Header Image section to after Name and description
	$wp_customize->get_section( 'header_image' )->title    = __( 'Header image', 'p2020' );
	$wp_customize->get_section( 'header_image' )->priority = 2;
}

add_action( 'customize_register', __NAMESPACE__ . '\customize_register' );


/**
 * Binds JS handlers to make Theme Customizer preview reload changes asynchronously.
 */
function customize_preview_js() {
	wp_enqueue_script( 'p2020_customizer', get_template_directory_uri() . '/js/customizer.js', [ 'customize-preview' ], '20130304', true );
}

add_action( 'customize_preview_init', __NAMESPACE__ . '\customize_preview_js' );

/**
 * Return a list of allowed sections.
 *
 * @return array Pattern strings of allowed section IDs.
 */
function get_allowed_sections() {
	$allowed_sections = [
		'p2020_site_identity',
		'header_image',
		'colors',
		'sidebar-widgets-sidebar-\d+',
		'p2020_advanced_options',
		'nav_menu\[\d+\]',
		'add_menu',
		'menu_locations',
	];

	return apply_filters( 'p2020_allowed_sections', $allowed_sections );
}

/**
 * Remove sections that are not in the allowlist.
 */
function disable_nonrelevant_sections( \WP_Customize_Manager $wp_customize ) {
	if ( apply_filters( 'p2020_allow_all_sections', false ) ) {
		return;
	}

	$all_sections        = array_keys( $wp_customize->sections() );
	$allowed_sections    = get_allowed_sections( $wp_customize );
	$disallowed_sections = preg_grep(
		'/' . implode( '|', $allowed_sections ) . '/',
		$all_sections,
		PREG_GREP_INVERT
	);

	foreach ( $disallowed_sections as $section ) {
		$wp_customize->remove_section( $section );
	}
}

// Keep the priority high enough so our callback is ran after everything else.
add_action( 'customize_register', __NAMESPACE__ . '\disable_nonrelevant_sections', 1000 );

/**
 * Disable "Additional CSS" added in Jetpack_Custom_CSS_Customizer.
 *
 * https://opengrok.a8c.com/source/xref/trunk/wp-content/mu-plugins/custom-css-in-customizer.php#15
 */
add_filter( 'enable_custom_customizer', '__return_false' );