class-wc-csp-condition-day-of-week.php

<?php
/**
 * WC_CSP_Condition_Day_of_Week class -- This is an example of a custom condition.
 *
 * @author   WooCommerce
 * @package  WooCommerce Conditional Shipping and Payments
 */

// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Day of Week Condition.
 *
 * @class    WC_CSP_Condition_Day_of_Week
 */
class WC_CSP_Condition_Day_of_Week extends WC_CSP_Package_Condition {

	/**
	 * Constructor.
	 */
	public function __construct() {
		$this->id                             = 'day_of_week';
		$this->title                          = __( 'Day of Week', 'woocommerce-conditional-shipping-and-payments' );
		// Here you can define in which Restrictions you'd like to add this custom condition.
		$this->supported_global_restrictions  = array( 'shipping_methods', 'shipping_countries' );
		$this->supported_product_restrictions = array( 'shipping_methods', 'shipping_countries' );
	}

	/**
	 * Return condition field-specific resolution message which is combined along with others into a single restriction "resolution message".
	 *
	 * @param  array  $data  Condition field data.
	 * @param  array  $args  Optional arguments passed by restriction.
	 * @return string|false
	 */
	public function get_condition_resolution( $data, $args ) {

		if ( empty( $data[ 'value' ] ) ) {
			return false;
		}

		$message          = false;
		$weekdays         = $this->get_weekdays();
		$restricted_days  = array();

		foreach( $data[ 'value' ] as $index ) {
			$restricted_days[] = $weekdays[ $index ];
		}

		if ( $this->modifier_is( $data[ 'modifier' ], array( 'is' ) ) ) {
			$message = sprintf( __( 'make sure that you place your order on a day other than: %s', 'woocommerce-conditional-shipping-and-payments' ), implode( ',', $restricted_days ) );
		} elseif ( $this->modifier_is( $data[ 'modifier' ], array( 'is-not' ) ) ) {
			$message = sprintf( __( 'make sure that you place your order on one of these days: %s', 'woocommerce-conditional-shipping-and-payments' ), implode( ',', $restricted_days ) );
		}

		return $message;
	}

	/**
	 * Evaluate if the condition is in effect or not.
	 *
	 * @param  array  $data  Condition field data.
	 * @param  array  $args  Optional arguments passed by restriction.
	 * @return boolean
	 */
	public function check_condition( $data, $args ) {

		if ( empty( $data[ 'value' ] ) ) {
			return false;
		}

		$current_day = date( 'w' );

		if ( 'is' === $data[ 'modifier' ] && in_array( $current_day, $data[ 'value' ] ) ) {
			return true;
		} elseif( 'is-not' === $data[ 'modifier' ] && ! in_array( $current_day, $data[ 'value' ] ) ) {
			return true;
		}

		return false;
	}

	/**
	 * Validate, process and return condition fields.
	 *
	 * @param  array  $posted_condition_data
	 * @return array
	 */
	public function process_admin_fields( $posted_condition_data ) {

		$processed_condition_data = array();

		if ( isset( $posted_condition_data[ 'value' ] ) ) {
			$processed_condition_data[ 'condition_id' ] = $this->id;
			$processed_condition_data[ 'modifier' ]     = stripslashes( $posted_condition_data[ 'modifier' ] );
			$processed_condition_data[ 'value' ]        = array_map( 'wc_clean', $posted_condition_data[ 'value' ] );
		}

		return $processed_condition_data;
	}

	/**
	 * Get day of week condition content for global restrictions.
	 *
	 * @param  int    $index
	 * @param  int    $condition_index
	 * @param  array  $condition_data
	 * @return str
	 */
	public function get_admin_fields_html( $index, $condition_index, $condition_data ) {

	$modifier = '';

	if ( ! empty( $condition_data[ 'modifier' ] ) ) {
		$modifier = $condition_data[ 'modifier' ];
	}

	$weekdays      = $this->get_weekdays();
	$selected_days = isset( $condition_data[ 'value' ] ) ? $condition_data[ 'value' ] : array();

	?>
	<input type="hidden" name="restriction[<?php echo $index; ?>][conditions][<?php echo $condition_index; ?>][condition_id]" value="<?php echo $this->id; ?>" />
	<div class="condition_row_inner">
		<div class="condition_modifier">
			<div class="sw-enhanced-select">
				<select name="restriction[<?php echo $index; ?>][conditions][<?php echo $condition_index; ?>][modifier]">
					<option value="is" <?php selected( $modifier, 'is', true ) ?>><?php echo __( 'is', 'woocommerce-conditional-shipping-and-payments' ); ?></option>
					<option value="is-not" <?php selected( $modifier, 'is-not', true ) ?>><?php echo __( 'is not', 'woocommerce-conditional-shipping-and-payments' ); ?></option>
				</select>
			</div>
		</div>
		<div class="condition_value">
			<select name="restriction[<?php echo $index; ?>][conditions][<?php echo $condition_index; ?>][value][]" class="multiselect sw-select2" multiple="multiple" data-placeholder="<?php _e( 'Select day of week&hellip;', 'woocommerce-conditional-shipping-and-payments' ); ?>">

				<?php
					foreach ( $weekdays as $value => $label ) {
						echo '<option value="' . esc_attr( $value ) . '" ' . selected( in_array( $value, $selected_days ), true, false ).'>' . esc_html( $label ) . '</option>';
					}
				?>
			</select>
		</div>
	</div><?php
	}

	/**
	 * Returns an array with the days of week.
	 * @return array
	 */
	public function get_weekdays() {
		return array( 'Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thrusday', 'Friday', 'Saturday' );
	}
}