use minimum cost margin in pricing panel

backend/app/plugins/wiaas/includes/admin/pricing/class-wiaas-admin-package-pricing.php

@@ -58,6 +58,7 @@ class Wiaas_Admin_Package_Pricing {
 		$package           = wc_get_product( $post->ID );
 		$pricing_rules = Wiaas_Package_Pricing::get_package_prices($package);
 		$commission = Wiaas_Package_Pricing::get_package_pricing_commission($package);
+		$minimum_cost_margin = Wiaas_Package_Pricing::get_package_minimum_cost_margin($package);
 
 		include 'views/html-package-pricing.php';
 	}
@@ -71,7 +72,8 @@ class Wiaas_Admin_Package_Pricing {
 		Wiaas_Package_Pricing::set_package_prices(
 			wc_get_product( $post_id ),
 			$_POST['wiaas_pricing_rules'],
-			$_POST['wiaas_pricing_rules_commision']);
+			$_POST['wiaas_pricing_rules_commision'],
+			$_POST['wiaas_minimum_cost_margin']);
 	}
 }
 

backend/app/plugins/wiaas/includes/admin/pricing/views/html-package-pricing.php

@@ -144,6 +144,20 @@ if ( ! defined( 'ABSPATH' ) ) {
         });
 	</script>
 
+    <div class="options_group">
+        <?php
+        woocommerce_wp_text_input(
+	        array(
+		        'id'        => '_wiaas_minimum_cost_margin',
+		        'name'      => 'wiaas_minimum_cost_margin',
+		        'value'     => $minimum_cost_margin,
+		        'label'     => __( 'Minimum cost margin:', 'wiaas' ),
+		        'type'      => 'number',
+	        )
+        );
+        ?>
+    </div>
+
     <div class="options_group">
         <?php
         woocommerce_wp_text_input(

backend/app/plugins/wiaas/includes/pricing/class-wiaas-package-pricing.php

@@ -101,15 +101,20 @@ class Wiaas_Package_Pricing {
 		return self::_get_package_pricing_commision($package);
 	}
 
+	public static function get_package_minimum_cost_margin($package){
+		return self::_get_package_minimum_cost_margin($package);
+	}
+
 	/**
 	 * Persist payment prices configuration for package
 	 * @param $package
 	 * @param $pricing_rules
 	 */
-	public static function set_package_prices($package, $pricing_rules, $commision) {
+	public static function set_package_prices($package, $pricing_rules, $commision, $minimum_cost_margin) {
 		if ( isset( $pricing_rules ) ) {
 			$package->update_meta_data( '_wiaas_pricing_rules', $pricing_rules );
 			$package->update_meta_data('_package_pricing_commision', $commision, true);
+			$package->update_meta_data('_package_minimum_cost_margin', $minimum_cost_margin, true);
 		} else {
 			$package->delete_meta_data( '_wiaas_pricing_rules' );
 		}
@@ -154,6 +159,16 @@ class Wiaas_Package_Pricing {
 
 		return (float) $commision;
 	}
+
+	private static function _get_package_minimum_cost_margin($package) {
+		$minimum_cost_margin = $package->get_meta( '_package_minimum_cost_margin', true);
+
+		if (!isset($minimum_cost_margin) || $minimum_cost_margin === '') {
+			return 0;
+		}
+
+		return (float) $minimum_cost_margin;
+	}
 }
 
 Wiaas_Package_Pricing::init();