Fix added for the incorrect code found by code inspection

Author: konarshankar07

src/com/magento/idea/magento2plugin/inspections/php/GraphQlResolverInspection.java

@@ -12,6 +12,7 @@
 import com.jetbrains.php.lang.inspections.PhpInspection;
 import com.jetbrains.php.lang.psi.elements.PhpClass;
 import com.jetbrains.php.lang.psi.visitors.PhpElementVisitor;
+import com.magento.idea.magento2plugin.inspections.php.fix.PhpImplementResolverClassQuickFix;
 import com.magento.idea.magento2plugin.util.magento.graphql.GraphQlUsagesCollector;
 import com.magento.idea.magento2plugin.util.magento.graphql.GraphQlUtil;
 import org.jetbrains.annotations.NotNull;
@@ -20,6 +21,8 @@
 
 public class GraphQlResolverInspection extends PhpInspection {
 
+    public static final String GraphQlResolverProblemDescription = "Class must implements \\Magento\\Framework\\GraphQl\\Query\\ResolverInterface";
+
     @NotNull
     @Override
     public PsiElementVisitor buildVisitor(@NotNull ProblemsHolder problemsHolder, boolean b) {
@@ -33,8 +36,9 @@ public void visitPhpClass(PhpClass resolverClass) {
                         PsiElement currentClassNameIdentifier = resolverClass.getNameIdentifier();
                         assert currentClassNameIdentifier != null;
                         problemsHolder.registerProblem(currentClassNameIdentifier,
-                                "Must implements Magento\\Framework\\GraphQl\\Query\\ResolverInterface",
-                                ProblemHighlightType.ERROR);
+                                GraphQlResolverProblemDescription,
+                                ProblemHighlightType.ERROR,
+                                new PhpImplementResolverClassQuickFix());
                     }
                 }
             }

src/com/magento/idea/magento2plugin/inspections/php/fix/PhpImplementResolverClassQuickFix.java

@@ -0,0 +1,29 @@
+/*
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+package com.magento.idea.magento2plugin.inspections.php.fix;
+
+import com.intellij.codeInspection.LocalQuickFix;
+import com.intellij.codeInspection.ProblemDescriptor;
+import com.intellij.openapi.project.Project;
+import com.intellij.psi.PsiElement;
+import com.jetbrains.php.lang.psi.PhpPsiElementFactory;
+import com.jetbrains.php.lang.psi.elements.PhpClass;
+import org.jetbrains.annotations.NotNull;
+
+public class PhpImplementResolverClassQuickFix implements LocalQuickFix {
+    @NotNull
+    @Override
+    public String getFamilyName() {
+        return "Implements Resolver interface";
+    }
+
+    @Override
+    public void applyFix(@NotNull Project project, @NotNull ProblemDescriptor descriptor) {
+        PsiElement correctInterface = PhpPsiElementFactory.createImplementsList(project, "\\Magento\\Framework\\GraphQl\\Query\\ResolverInterface");
+        PhpClass GraphQlResolverclass = (PhpClass) descriptor.getPsiElement().getParent();
+        GraphQlResolverclass.getImplementsList().replace(correctInterface);
+    }
+}