<?php
/**
 * Customizer sanitization
 *
 * @package Baltic
 */

namespace Baltic;

trait Sanitize {

	/**
	 * Sanitize Integer
	 *
	 * @param  number $input Customizer setting input number.
	 * @return number        Absolute number.
	 */
	public static function sanitize_integer( $input ) {
		return absint( $input );
	}

	/**
	 * Sanitize Integer
	 *
	 * @param  number $val      Customizer setting input number.
	 * @param  object $setting  Setting object.
	 * @return number           Return number.
	 */
	public static function sanitize_number( $val, $setting ) {

		$input_attrs = $setting->manager->get_control( $setting->id )->input_attrs;

		if ( isset( $input_attrs ) ) {

			$input_attrs['min']  = isset( $input_attrs['min'] ) ? $input_attrs['min'] : 0;
			$input_attrs['step'] = isset( $input_attrs['step'] ) ? $input_attrs['step'] : 1;

			if ( isset( $input_attrs['max'] ) && $val > $input_attrs['max'] ) {
				$val = $input_attrs['max'];
			} elseif ( $val < $input_attrs['min'] ) {
				$val = $input_attrs['min'];
			}

					$dv = $val / $input_attrs['step'];

					$dv = round( $dv );

					$val = $dv * $input_attrs['step'];

				$val = number_format( (float) $val, 2, '.', '' );
			if ( $val == (int) $val ) {
				$val = (int) $val;
			}
		}

		return is_numeric( $val ) ? $val : 0;
	}

	/**
	 * Sanitize Integer
	 *
	 * @param  number $val Customizer setting input number.
	 * @return number        Return number.
	 */
	public static function sanitize_number_n_blank( $val ) {
		return is_numeric( $val ) ? $val : '';
	}

	/**
	 * Sanitize Spacing
	 *
	 * @param  number $val Customizer setting input number.
	 * @return number        Return number.
	 */
	public static function sanitize_spacing( $val ) {

		foreach ( $val as $key => $value ) {
			$val[ $key ] = ( is_numeric( $val[ $key ] ) && $val[ $key ] >= 0 ) ? $val[ $key ] : '';
		}

		return $val;
	}

	/**
	 * Sanitize responsive  Spacing
	 *
	 * @param  number $val Customizer setting input number.
	 * @return number        Return number.
	 */
	public static function sanitize_responsive_spacing( $val ) {

		$spacing = array(
			'desktop'      => array(
				'top'    => '',
				'right'  => '',
				'bottom' => '',
				'left'   => '',
			),
			'tablet'       => array(
				'top'    => '',
				'right'  => '',
				'bottom' => '',
				'left'   => '',
			),
			'mobile'       => array(
				'top'    => '',
				'right'  => '',
				'bottom' => '',
				'left'   => '',
			),
			'desktop-unit' => 'px',
			'tablet-unit'  => 'px',
			'mobile-unit'  => 'px',
		);

		if ( isset( $val['desktop'] ) ) {
			$spacing['desktop'] = array_map(
				function ( $value ) {
						return ( is_numeric( $value ) && $value >= 0 ) ? $value : '';
				}, $val['desktop']
			);

			$spacing['tablet'] = array_map(
				function ( $value ) {
						return ( is_numeric( $value ) && $value >= 0 ) ? $value : '';
				}, $val['tablet']
			);

			$spacing['mobile'] = array_map(
				function ( $value ) {
						return ( is_numeric( $value ) && $value >= 0 ) ? $value : '';
				}, $val['mobile']
			);

			if ( isset( $val['desktop-unit'] ) ) {
				$spacing['desktop-unit'] = $val['desktop-unit'];
			}

			if ( isset( $val['tablet-unit'] ) ) {
				$spacing['tablet-unit'] = $val['tablet-unit'];
			}

			if ( isset( $val['mobile-unit'] ) ) {
				$spacing['mobile-unit'] = $val['mobile-unit'];
			}

			return $spacing;

		} else {
			foreach ( $val as $key => $value ) {
				$val[ $key ] = is_numeric( $val[ $key ] ) ? $val[ $key ] : '';
			}
			return $val;
		}

	}

	/**
	 * Sanitize Responsive Slider
	 *
	 * @param  array|number $val Customizer setting input number.
	 * @param  object       $setting Setting Onject.
	 * @return array        Return number.
	 */
	public static function sanitize_responsive_slider( $val, $setting ) {

		$input_attrs = array();
		if ( isset( $setting->manager->get_control( $setting->id )->input_attrs ) ) {
			$input_attrs = $setting->manager->get_control( $setting->id )->input_attrs;
		}

		$responsive = array(
			'desktop' => '',
			'tablet'  => '',
			'mobile'  => '',
		);
		if ( is_array( $val ) ) {
			$responsive['desktop'] = is_numeric( $val['desktop'] ) ? $val['desktop'] : '';
			$responsive['tablet']  = is_numeric( $val['tablet'] ) ? $val['tablet'] : '';
			$responsive['mobile']  = is_numeric( $val['mobile'] ) ? $val['mobile'] : '';
		} else {
			$responsive['desktop'] = is_numeric( $val ) ? $val : '';
		}

		foreach ( $responsive as $key => $value ) {
				$value              = isset( $input_attrs['min'] ) && ( ! empty( $value ) ) && ( $input_attrs['min'] > $value ) ? $input_attrs['min'] : $value;
				$value              = isset( $input_attrs['max'] ) && ( ! empty( $value ) ) && ( $input_attrs['max'] < $value ) ? $input_attrs['max'] : $value;
				$responsive[ $key ] = $value;
		}

		return $responsive;
	}

	/**
	 * Sanitize Responsive Typography
	 *
	 * @param  array|number $val Customizer setting input number.
	 * @return array        Return number.
	 */
	public static function sanitize_responsive_unit( $val ) {

		$responsive = array(
			'desktop'      => '',
			'tablet'       => '',
			'mobile'       => '',
			'desktop-unit' => '',
			'tablet-unit'  => '',
			'mobile-unit'  => '',
		);
		if ( is_array( $val ) ) {
			$responsive['desktop']      = is_numeric( $val['desktop'] ) ? $val['desktop'] : '';
			$responsive['tablet']       = is_numeric( $val['tablet'] ) ? $val['tablet'] : '';
			$responsive['mobile']       = is_numeric( $val['mobile'] ) ? $val['mobile'] : '';
			$responsive['desktop-unit'] = in_array( $val['desktop-unit'], array( '', 'px', 'em', 'rem', '%' ) ) ? $val['desktop-unit'] : 'px';
			$responsive['tablet-unit']  = in_array( $val['tablet-unit'], array( '', 'px', 'em', 'rem', '%' ) ) ? $val['tablet-unit'] : 'px';
			$responsive['mobile-unit']  = in_array( $val['mobile-unit'], array( '', 'px', 'em', 'rem', '%' ) ) ? $val['mobile-unit'] : 'px';
		} else {
			$responsive['desktop'] = is_numeric( $val ) ? $val : '';
		}
		return $responsive;
	}

	/**
	 * Validate Email
	 *
	 * @param  object $validity setting input validity.
	 * @param  string $value    setting input value.
	 * @return object           Return the validity object.
	 */
	public static function validate_email( $validity, $value ) {
		if ( ! is_email( $value ) ) {
			$validity->add( 'required', __( 'Enter valid email address!', 'baltic' ) );
		}
		return $validity;
	}

	/**
	 * Sanitize checkbox
	 *
	 * @param  number $input setting input.
	 * @return number        setting input value.
	 */
	public static function sanitize_checkbox( $input ) {
		if ( $input ) {
			$output = '1';
		} else {
			$output = false;
		}
		return $output;
	}

	/**
	 * Sanitize HEX color
	 *
	 * @param  string $color setting input.
	 * @return string        setting input value.
	 */
	public static function sanitize_hex_color( $color ) {

		if ( '' === $color ) {
			return '';
		}

		// 3 or 6 hex digits, or the empty string.
		if ( preg_match( '|^#([A-Fa-f0-9]{3}){1,2}$|', $color ) ) {
			return $color;
		}

		return '';
	}

	/**
	 * Sanitize Alpha color
	 *
	 * @param  string $color setting input.
	 * @return string        setting input value.
	 */
	public static function sanitize_alpha_color( $color ) {

		if ( '' === $color ) {
			return '';
		}

		if ( false === strpos( $color, 'rgba' ) ) {
			/* Hex sanitize */
			return self::sanitize_hex_color( $color );
		}

		/* rgba sanitize */
		$color = str_replace( ' ', '', $color );
		sscanf( $color, 'rgba(%d,%d,%d,%f)', $red, $green, $blue, $alpha );
		return 'rgba(' . $red . ',' . $green . ',' . $blue . ',' . $alpha . ')';
	}

	/**
	 * Sanitize html
	 *
	 * @param  string $input    setting input.
	 * @return mixed            setting input value.
	 */
	public static function sanitize_html( $input ) {
		return wp_kses_post( $input );
	}

	/**
	 * Sanitize Select choices
	 *
	 * @param  string $input    setting input.
	 * @param  object $setting  setting object.
	 * @return mixed            setting input value.
	 */
	public static function sanitize_multi_choices( $input, $setting ) {

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

		foreach ( $input_keys as $key => $value ) {
			if ( ! array_key_exists( $value, $choices ) ) {
				unset( $input[ $key ] );
			}
		}

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

	/**
	 * Sanitize Select choices
	 *
	 * @param  string $input    setting input.
	 * @param  object $setting  setting object.
	 * @return mixed            setting input value.
	 */
	public static function sanitize_choices( $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 );
	}

	/**
	 * Sanitize Font weight
	 *
	 * @param  mixed $input setting input.
	 * @return mixed        setting input value.
	 */
	public static function sanitize_font_weight( $input ) {

		$valid = array(
			'normal',
			'bold',
			'100',
			'200',
			'300',
			'400',
			'500',
			'600',
			'700',
			'800',
			'900',
		);

		if ( in_array( $input, $valid ) ) {
			return $input;
		} else {
			return 'normal';
		}
	}

	/**
	 * Sanitize Background Obj
	 *
	 * @param  mixed $bg_obj setting input.
	 * @return array        setting input value.
	 */
	public static function sanitize_background_obj( $bg_obj ) {

		$out_bg_obj = array(
			'background-color'      => '',
			'background-image'      => '',
			'background-repeat'     => 'repeat',
			'background-position'   => 'center center',
			'background-size'       => 'auto',
			'background-attachment' => 'scroll',
		);

		if ( is_array( $bg_obj ) ) {

			foreach ( $out_bg_obj as $key => $value ) {

				if ( isset( $bg_obj[ $key ] ) ) {

					if ( 'background-image' === $key ) {
						$out_bg_obj[ $key ] = esc_url_raw( $bg_obj[ $key ] );
					} else {
						$out_bg_obj[ $key ] = esc_attr( $bg_obj[ $key ] );
					}
				}
			}
		}

		return $out_bg_obj;
	}

	/**
	 * Google Font sanitization callback.
	 *
	 * @param string $html HTML to sanitize.
	 * @return string Sanitized HTML.
	 */
	public static function google_font( $input ) {

		$val =  json_decode( $input, true );
		if( is_array( $val ) ) {
			foreach ( $val as $key => $value ) {
				$val[$key] = sanitize_text_field( $value );
			}
			$input = json_encode( $val );
		}
		else {
			$input = json_encode( sanitize_text_field( $val ) );
		}
		return $input;

	}

	/**
	 * Switch checkbox sanitization callback.
	 *
	 * @param bool $checked Whether the checkbox is checked.
	 * @return bool Whether the checkbox is checked.
	 */
	public static function sanitize_switch( $input ) {
		if ( true === $input ) {
			return true;
		} else {
			return false;
		}
	}

}