<?php
/**
 * Sanitization functions.
 *
 * @package unique_startup
 */

if ( ! function_exists( 'unique_startup_sanitize_select' ) ) :

	/**
	 * Sanitize select.
	 *
	 * @since 1.0.0
	 *
	 * @param mixed                $input The value to sanitize.
	 * @param WP_Customize_Setting $setting WP_Customize_Setting instance.
	 * @return mixed Sanitized value.
	 */
	function unique_startup_sanitize_select( $input, $setting ) {

		// Ensure input is a slug.
		$input = sanitize_key( $input );

		// Get list of choices from the control associated with the setting.
		$choices = $setting->manager->get_control( $setting->id )->choices;

		// If the input is a valid key, return it; otherwise, return the default.
		return ( array_key_exists( $input, $choices ) ? $input : $setting->default );

	}

endif;

if ( ! function_exists( 'unique_startup_sanitize_checkbox' ) ) :

	/**
	 * Sanitize checkbox.
	 *
	 * @since 1.0.0
	 *
	 * @param bool $checked Whether the checkbox is checked.
	 * @return bool Whether the checkbox is checked.
	 */
	function unique_startup_sanitize_checkbox( $checked ) {

		return ( ( isset( $checked ) && true === $checked ) ? true : false );

	}

endif;

if ( ! function_exists( 'unique_startup_sanitize_textarea_content' ) ) :

	/**
	 * Sanitize textarea content.
	 *
	 * @since 1.0.0
	 *
	 * @param string               $input Content to be sanitized.
	 * @param WP_Customize_Setting $setting WP_Customize_Setting instance.
	 * @return string Sanitized content.
	 */
	function unique_startup_sanitize_textarea_content( $input, $setting ) {

		return ( stripslashes( wp_filter_post_kses( addslashes( $input ) ) ) );

	}
endif;