filter variant fav menu

lib/api/api.dart

@@ -467,7 +467,7 @@ class Api {
               if (favDetail[i]['favorite_group_id'] == favGroup[s]['id']) {
                 // List<dynamic> variantCat = favDetail[i]['variants'];
 
-                List<VariantCategories> variantCategories = [];
+                // List<VariantCategories> variantCategories = [];
 
                 // for (int o = 0; o < variantCat.length; o++) {
                 //   List<Variants> variants = [];
@@ -487,6 +487,35 @@ class Api {
                 //       VariantCategories.createVariantCategory(dataVariantCat));
                 // }
 
+                List<dynamic> variantCat = favDetail[i]['variants'];
+
+                List<VariantCategories> variantCategories = [];
+
+                // for (int o = 0; o < variantCat.length; o++) {
+
+                for (int j = 0; j < variantCat.length; j++) {
+                  int index = variantCategories.indexWhere((varCat) =>
+                      varCat.id == variantCat[j]['category_variant_id']);
+                  if (index == -1) {
+                    List<Variants> variants = [];
+                    for (int k = 0; k < variantCat.length; k++) {
+                      if (variantCat[j]['category_variant_id'] ==
+                          variantCat[k]['category_variant_id']) {
+                        variants.add(Variants.createVariant(variantCat[k]));
+                      }
+                    }
+                    Map<String, dynamic> dataVariantCat = {
+                      "id": variantCat[j]['category_variant_id'],
+                      "caption": variantCat[j]['category_variant_caption'],
+                      "type": variantCat[j]['category_variant_type'],
+                      "variants": variants
+                    };
+                    variantCategories.add(
+                        VariantCategories.createVariantCategory(
+                            dataVariantCat));
+                  }
+                }
+
                 // pemisahan type group
                 if (favDetail[i]['group_id'] != groupIdForFiltering) {
                   groupIdForFiltering = favDetail[i]['group_id'];