<?php

/**
 * Class to add customizer settings.
 * Class Display_Featured_Image_Genesis_Customizer
 * @package Display_Featured_Image_Genesis
 * @copyright 2016 Robin Cornett
 */
class Display_Featured_Image_Genesis_Customizer extends Display_Featured_Image_Genesis_Helper {

	/**
	 * Section for the Customizer.
	 * @var string $section
	 */
	protected $section = 'displayfeaturedimagegenesis';

	/**
	 * Display Featured Image for Genesis Settings class.
	 * @var $settings SuperSide_Me_Settings
	 */
	protected $settings;

	/**
	 * Default plugin settings.
	 * @var array $defaults
	 */
	protected $defaults;

	/**
	 * Plugin setting from database.
	 * @var array $setting
	 */
	protected $setting;

	/**
	 * Adds the individual sections, settings, and controls to the theme customizer
	 * @param $wp_customize WP_Customize_Manager
	 * @uses add_section() adds a section to the customizer
	 * @since 2.6.0
	 */
	public function customizer( $wp_customize ) {

		$this->defaults = $this->defaults();
		$this->setting  = get_option( 'displayfeaturedimagegenesis', false );
		if ( ! $this->setting ) {
			add_option( 'displayfeaturedimagegenesis', $this->defaults );
		}
		$wp_customize->add_section(
			$this->section,
			array(
				'title'       => __( 'Display Featured Image for Genesis', 'display-featured-image-genesis' ),
				'description' => __( 'Only general settings are available in the Customizer; more can be found on the Display Featured Image for Genesis settings page.', 'display-featured-image-genesis' ),
				'priority'    => 90,
			)
		);

		$this->build_fields( $wp_customize );
	}

	/**
	 * Build the Display Featured Image for Genesis Customizer settings panel.
	 * @param $wp_customize
	 * @since 2.6.0
	 */
	protected function build_fields( $wp_customize ) {

		$this->do_image_setting( $wp_customize, $this->default_image() );

		$checkboxes = $this->main_fields();
		foreach ( $checkboxes as $checkbox ) {
			$checkbox['sanitize_callback'] = array( $this, 'one_zero' );
			$checkbox['type']              = 'checkbox';
			$this->add_control( $wp_customize, $checkbox );
		}

		$numbers = $this->height_fields();
		foreach ( $numbers as $field ) {
			$field['sanitize_callback'] = 'absint';
			$field['type']              = 'number';
			$this->add_control( $wp_customize, $field );
		}

		$radios = $this->radio_fields();
		foreach ( $radios as $radio ) {
			$radio['type']              = 'radio';
			$radio['choices']           = $this->pick_center();
			$radio['sanitize_callback'] = 'absint';
			$this->add_control( $wp_customize, $radio );
		}

		$this->add_control( $wp_customize, $this->fade() );
	}

	/**
	 * Define the number fields (height, max-height) for the customizer.
	 * @return array
	 * @since 2.6.0
	 */
	function height_fields() {
		return array(
			array(
				'setting'     => 'less_header',
				'label'       => __( 'Height', 'display-featured-image-genesis' ),
				'description' => __( 'Changing this number will reduce the backstretch image height by this number of pixels. Default is zero.', 'display-featured-image-genesis' ),
				'input_attrs' => array(
					'min'   => 0,
					'max'   => 400,
				),
			),
			array(
				'setting'     => 'max_height',
				'label'       => __( 'Maximum Height', 'display-featured-image-genesis' ),
				'description' => __( 'Optionally, set a max-height value for the header image; it will be added to your CSS.', 'display-featured-image-genesis' ),
				'input_attrs' => array(
					'min'   => 100,
					'max'   => 1000,
				),
			),
		);
	}

	/**
	 * Define the fade field for the customizer.
	 * @return array
	 */
	protected function fade() {
		return array(
			'setting'           => 'fade',
			'label'             => __( 'Fade', 'display-featured-image-genesis' ),
			'description'       => __( 'Time (in milliseconds) it will take for the backstretch image to appear.', 'display-featured-image-genesis' ),
			'input_attrs'       => array(
				'min' => 0,
				'max' => 10000,
			),
			'sanitize_callback' => 'absint',
		);
	}

	/**
	 * Define all the checkbox fields for the customizer.
	 * @return array
	 * @since 2.6.0
	 */
	protected function main_fields() {
		return array(
			array(
				'setting'     => 'always_default',
				'label'       => __( 'Always Use Default', 'display-featured-image-genesis' ),
				'description' => __( 'Always use the default image, even if a featured image is set.', 'display-featured-image-genesis' ),
			),
			array(
				'setting'     => 'exclude_front',
				'label'       => __( 'Skip Front Page', 'display-featured-image-genesis' ),
				'description' => __( 'Do not show the Featured Image on the Front Page of the site.', 'display-featured-image-genesis' ),
			),
			array(
				'setting'     => 'keep_titles',
				'label'       => __( 'Do Not Move Titles', 'display-featured-image-genesis' ),
				'description' => __( 'Do not move the titles to overlay the backstretch Featured Image.', 'display-featured-image-genesis' ),
			),
			array(
				'setting'     => 'move_excerpts',
				'label'       => __( 'Move Excerpts/Archive Descriptions', 'display-featured-image-genesis' ),
				'description' => __( 'Move excerpts (if used) on single pages and move archive/taxonomy descriptions to overlay the Featured Image.', 'display-featured-image-genesis' ),
			),
			array(
				'setting'     => 'thumbnails',
				'label'       => __( 'Archive Thumbnails', 'display-featured-image-genesis' ),
				'description' => __( 'Use term/post type fallback images for content archive thumbnails?', 'display-featured-image-genesis' ),
			),
		);
	}

	/**
	 * Define the radio/centering fields for the customizer.
	 * @return array
	 */
	protected function radio_fields() {
		return array(
			array(
				'setting'     => 'centeredX',
				'label'       => __( 'Center Horizontally', 'display-featured-image-genesis' ),
				'description' => __( 'Center the backstretch image on the horizontal axis?', 'display-featured-image-genesis' ),
			),
			array(
				'setting'     => 'centeredY',
				'label'       => __( 'Center Vertically', 'display-featured-image-genesis' ),
				'description' => __( 'Center the backstretch image on the vertical axis?', 'display-featured-image-genesis' ),
			),
		);
	}

	/**
	 * Define the choices for the centering settings.
	 * @return array
	 */
	protected function pick_center() {
		return array(
			1 => __( 'Center', 'display-featured-image-genesis' ),
			0 => __( 'Do Not Center', 'display-featured-image-genesis' ),
		);
	}

	/**
	 * Define the control setting for the default image.
	 * @return array
	 * @since 2.6.0
	 */
	protected function default_image() {
		$common = new Display_Featured_Image_Genesis_Common();
		$size   = $common->minimum_backstretch_width();

		return array(
			'setting'           => 'default',
			'description'       => sprintf( __( 'If you would like to use a default image for the featured image, upload it here. Must be at least %1$s pixels wide.', 'display-featured-image-genesis' ), absint( $size + 1 ) ),
			'label'             => __( 'Default Image', 'display-featured-image-genesis' ),
			'sanitize_callback' => array( $this, 'send_image_to_validator' ),
		);
	}

	/**
	 * @param $wp_customize WP_Customize_Manager
	 * @param $setting
	 * @since 2.6.0
	 */
	protected function do_image_setting( $wp_customize, $setting ) {
		$this->add_setting( $wp_customize, $setting );
		$wp_customize->add_control(
			new WP_Customize_Image_Control(
				$wp_customize,
				$this->section . '[' . $setting['setting'] . ']',
				array(
					'label'       => $setting['label'],
					'section'     => $this->section,
					'settings'    => $this->section . '[' . $setting['setting'] . ']',
					'description' => isset( $setting['description'] ) ? $setting['description'] : '',
				)
			)
		);
	}

	/**
	 * @param $wp_customize WP_Customize_Manager
	 * @param $setting
	 * @since 2.6.0
	 */
	protected function add_control( $wp_customize, $setting ) {
		$this->add_setting( $wp_customize, $setting );
		$wp_customize->add_control(
			$this->section . '[' . $setting['setting'] . ']',
			array(
				'label'       => $setting['label'],
				'section'     => $this->section,
				'type'        => isset( $setting['type'] ) ? $setting['type'] : '',
				'description' => isset( $setting['description'] ) ? $setting['description'] : '',
				'choices'     => isset( $setting['choices'] ) ? $setting['choices'] : array(),
				'input_attrs' => isset( $setting['input_attrs'] ) ? $setting['input_attrs'] : array(),
			)
		);
	}

	/**
	 * @param $wp_customize WP_Customize_Manager
	 * @param $setting
	 * @since 2.6.0
	 */
	protected function add_setting( $wp_customize, $setting ) {
		$wp_customize->add_setting(
			$this->section . '[' . $setting['setting'] . ']',
			array(
				'capability'        => 'manage_options',
				'default'           => $this->defaults[ $setting['setting'] ],
				'sanitize_callback' => isset( $setting['sanitize_callback'] ) ? $setting['sanitize_callback'] : '',
				'type'              => 'option',
				'transport'         => isset( $setting['transport'] ) ? $setting['transport'] : 'refresh',
			)
		);
	}

	/**
	 * Custom validation function for the default image--ensure image is appropriately sized.
	 * @param $new_value
	 *
	 * @return string
	 * @since 2.6.0
	 */
	public function send_image_to_validator( $new_value ) {
		$common    = new Display_Featured_Image_Genesis_Common();
		$size      = $common->minimum_backstretch_width();
		$new_value = $this->validate_image( $new_value, $this->setting['default'], __( 'Default', 'display-featured-image-genesis' ), $size );
		return $new_value;
	}
}