<?php

/**
 * Sanitize select field
 *
 * @param  string $input   Selected input.
 * @param  string $setting Input setting.
 */

function bright_blog_sanitize_select( $input, $setting ) {
	// input must be a slug: lowercase alphanumeric characters, dashes and underscores are allowed only.
	$input = sanitize_key( $input );

	// get the list of possible select options.
	$choices = $setting->manager->get_control( $setting->id )->choices;

	// return input if valid or return default option.
	return ( array_key_exists( $input, $choices ) ? $input : $setting->default );
}

/**
 * Sanitize switch control
 *
 * @param  string   Switch value.
 * @return integer  Sanitized value
 */
function bright_blog_sanitize_switch( $input ) {
	if ( true === $input ) {
		return true;
	} else {
		return false;
	}
}

/**
 * Sanitize checkbox field
 *
 * @param  string $input Selected input.
 */
function bright_blog_sanitize_checkbox( $input ) {

	// returns true if checkbox is checked.
	return ( ( isset( $input ) && true == $input ) ? true : false );
}

function bright_blog_sanitize_image( $image, $setting ) {
	/*
	* Array of valid image file types.
	*
	* The array includes image mime types that are included in wp_get_mime_types()
	*/
	$all_mimes   = get_allowed_mime_types();
	$image_mimes = array_filter( $all_mimes, function( $mime ) {
		return strpos( $mime, 'image/' ) === 0;
		}
	);
	// Return an array with file extension and mime_type.
	$file = wp_check_filetype( $image, $image_mimes );
	// If $image has a valid mime_type, return it; otherwise, return the default.
	return ( $file['ext'] ? $image : $setting->default );
}

function bright_blog_sanitize_google_fonts( $input, $setting ) {

	// 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 );

}

/**
 * Sanitize number range
 *
 * @param  string $input Input value.
 * @param  string $setting Input setting.
 */
function bright_blog_sanitize_number_range( $input, $setting ) {
	$input = absint( $input );
	$atts  = $setting->manager->get_control( $setting->id )->input_attrs;

	$min  = ( isset( $atts['min'] ) ? $atts['min'] : $input );
	$max  = ( isset( $atts['max'] ) ? $atts['max'] : $input );
	$step = ( isset( $atts['step'] ) ? $atts['step'] : 1 );

	// If the number is within the valid range, return it; otherwise, return the default.
	return ( $min <= $input && $input <= $max && is_int( $input / $step ) ? $input : $setting->default );
}