From 100a425ea4d6de2be37ee4635577c99231f3c5e5 Mon Sep 17 00:00:00 2001
From: Filip Hrisafov <filip.hrisafov@gmail.com>
Date: Sat, 3 Apr 2021 14:39:30 +0200
Subject: [PATCH] Support configuring order of source and target in `@Mapping`
 for Add unmapped property quick fix

Fixes #51
---
 change-notes.html                             |  4 ++
 .../UnmappedTargetPropertiesInspection.java   | 27 +++++--
 .../intellij/settings/ProjectSettings.java    | 30 ++++++++
 .../settings/ProjectSettingsComponent.java    | 55 ++++++++++++++
 .../settings/ProjectSettingsPage.java         | 71 +++++++++++++++++++
 src/main/resources/META-INF/plugin.xml        |  6 ++
 .../messages/MapStructBundle.properties       |  3 +
 ...rtiesInspectionSourceBeforeTargetTest.java | 57 +++++++++++++++
 ...pedTargetPropertiesSourceBeforeTarget.java | 36 ++++++++++
 ...getPropertiesSourceBeforeTarget_after.java | 42 +++++++++++
 10 files changed, 325 insertions(+), 6 deletions(-)
 create mode 100644 src/main/java/org/mapstruct/intellij/settings/ProjectSettings.java
 create mode 100644 src/main/java/org/mapstruct/intellij/settings/ProjectSettingsComponent.java
 create mode 100644 src/main/java/org/mapstruct/intellij/settings/ProjectSettingsPage.java
 create mode 100644 src/test/java/org/mapstruct/intellij/inspection/UnmappedTargetPropertiesInspectionSourceBeforeTargetTest.java
 create mode 100644 testData/inspection/UnmappedTargetPropertiesSourceBeforeTarget.java
 create mode 100644 testData/inspection/UnmappedTargetPropertiesSourceBeforeTarget_after.java
diff --git a/change-notes.html b/change-notes.html
index c4ed3665..a67e55d4 100644
--- a/change-notes.html
+++ b/change-notes.html
@@ -1,4 +1,8 @@
 <html>
+<h2>1.3.0</h2>
+<ul>
+    <li>Quick Fix: support for configuring the order of source and target in <code>@Mapping</code> for "Add unmapped property" fix</li>
+</ul>
 <h2>1.2.4</h2>
 <ul>
     <li>Add plugin icon</li>
diff --git a/src/main/java/org/mapstruct/intellij/inspection/UnmappedTargetPropertiesInspection.java b/src/main/java/org/mapstruct/intellij/inspection/UnmappedTargetPropertiesInspection.java
index 5d893449..4a197133 100644
--- a/src/main/java/org/mapstruct/intellij/inspection/UnmappedTargetPropertiesInspection.java
+++ b/src/main/java/org/mapstruct/intellij/inspection/UnmappedTargetPropertiesInspection.java
@@ -33,6 +33,7 @@
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import org.mapstruct.intellij.MapStructBundle;
+import org.mapstruct.intellij.settings.ProjectSettings;
 import org.mapstruct.intellij.util.MapStructVersion;
 import org.mapstruct.intellij.util.MapstructUtil;
 import org.mapstruct.intellij.util.TargetUtils;
@@ -241,6 +242,25 @@ public void invoke(@NotNull Project project,
 
     }
 
+    private static class UnmappedTargetPropertyFixAnnotationSupplier implements Supplier<Collection<PsiAnnotation>> {
+        private final PsiMethod method;
+        private final String target;
+
+        private UnmappedTargetPropertyFixAnnotationSupplier(PsiMethod method, String target) {
+            this.method = method;
+            this.target = target;
+        }
+
+        @Override
+        public Collection<PsiAnnotation> get() {
+            String annotationText = ProjectSettings.isPreferSourceBeforeTargetInMapping( method.getProject() ) ?
+                "@" + MapstructUtil.MAPPING_ANNOTATION_FQN + "(source = \"\", target = \"" + target + "\")" :
+                "@" + MapstructUtil.MAPPING_ANNOTATION_FQN + "(target = \"" + target + "\", source = \"\")";
+            return Collections.singleton( JavaPsiFacade.getElementFactory( method.getProject() )
+                .createAnnotationFromText( annotationText, null ) );
+        }
+    }
+
     /**
      * Add unmapped property fix. Property fix that adds a {@link org.mapstruct.Mapping} annotation with the
      * given {@code target}
@@ -251,17 +271,12 @@ public void invoke(@NotNull Project project,
      * @return the Local Quick fix
      */
     private static UnmappedTargetPropertyFix createAddUnmappedTargetPropertyFix(PsiMethod method, String target) {
-        String fqn = MapstructUtil.MAPPING_ANNOTATION_FQN;
-        Supplier<Collection<PsiAnnotation>> annotationSupplier =
-            () -> Collections.singleton( JavaPsiFacade.getElementFactory(
-            method.getProject() )
-            .createAnnotationFromText( "@" + fqn + "(target = \"" + target + "\", source=\"\")", null ) );
         String message = MapStructBundle.message( "inspection.add.unmapped.target.property", target );
         return new UnmappedTargetPropertyFix(
             method,
             message,
             MapStructBundle.message( "intention.add.unmapped.target.property" ),
-            annotationSupplier
+            new UnmappedTargetPropertyFixAnnotationSupplier( method, target )
         );
     }
 
diff --git a/src/main/java/org/mapstruct/intellij/settings/ProjectSettings.java b/src/main/java/org/mapstruct/intellij/settings/ProjectSettings.java
new file mode 100644
index 00000000..e1903a9b
--- /dev/null
+++ b/src/main/java/org/mapstruct/intellij/settings/ProjectSettings.java
@@ -0,0 +1,30 @@
+/*
+ * Copyright MapStruct Authors.
+ *
+ * Licensed under the Apache License version 2.0, available at http://www.apache.org/licenses/LICENSE-2.0
+ */
+package org.mapstruct.intellij.settings;
+
+import com.intellij.ide.util.PropertiesComponent;
+import com.intellij.openapi.project.Project;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * @author Filip Hrisafov
+ */
+public interface ProjectSettings {
+
+    String PREFIX = "MapStructPlugin";
+
+    String PREFER_SOURCE_BEFORE_TARGET_IN_MAPPING =
+        PREFIX + "PREFER_SOURCE_BEFORE_TARGET_IN_MAPPING";
+
+    static boolean isPreferSourceBeforeTargetInMapping(@NotNull Project project) {
+        return PropertiesComponent.getInstance( project ).getBoolean( PREFER_SOURCE_BEFORE_TARGET_IN_MAPPING, false );
+    }
+
+    static void setPreferSourceBeforeTargetInMapping(@NotNull Project project, boolean value) {
+        PropertiesComponent.getInstance( project )
+            .setValue( PREFER_SOURCE_BEFORE_TARGET_IN_MAPPING, String.valueOf( value ), "false" );
+    }
+}
diff --git a/src/main/java/org/mapstruct/intellij/settings/ProjectSettingsComponent.java b/src/main/java/org/mapstruct/intellij/settings/ProjectSettingsComponent.java
new file mode 100644
index 00000000..5de93869
--- /dev/null
+++ b/src/main/java/org/mapstruct/intellij/settings/ProjectSettingsComponent.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright MapStruct Authors.
+ *
+ * Licensed under the Apache License version 2.0, available at http://www.apache.org/licenses/LICENSE-2.0
+ */
+package org.mapstruct.intellij.settings;
+
+import java.awt.BorderLayout;
+import javax.swing.JComponent;
+import javax.swing.JPanel;
+
+import com.intellij.ui.IdeBorderFactory;
+import com.intellij.ui.components.JBCheckBox;
+import com.intellij.util.ui.FormBuilder;
+import org.mapstruct.intellij.MapStructBundle;
+
+/**
+ * @author Filip Hrisafov
+ */
+public class ProjectSettingsComponent {
+
+    private final JPanel mainPanel;
+    private final JBCheckBox preferSourceBeforeTargetInMapping;
+
+    public ProjectSettingsComponent() {
+        this.preferSourceBeforeTargetInMapping = new JBCheckBox( MapStructBundle.message(
+            "plugin.settings.quickFix.preferSourceBeforeTargetInMapping" ), false );
+        JPanel quickFixProperties = new JPanel( new BorderLayout() );
+        quickFixProperties.setBorder( IdeBorderFactory.createTitledBorder( MapStructBundle.message(
+            "plugin.settings.quickFix.title" ), false ) );
+
+        quickFixProperties.add( this.preferSourceBeforeTargetInMapping, BorderLayout.NORTH );
+        this.mainPanel = FormBuilder.createFormBuilder()
+            .addComponent( quickFixProperties )
+            .addComponentFillVertically( new JPanel(), 0 )
+            .getPanel();
+    }
+
+    public JPanel getPanel() {
+        return mainPanel;
+    }
+
+    public JComponent getPreferredFocusedComponent() {
+        return preferSourceBeforeTargetInMapping;
+    }
+
+    public boolean getPreferSourceBeforeTargetInMapping() {
+        return preferSourceBeforeTargetInMapping.isSelected();
+    }
+
+    public void setPreferSourceBeforeTargetInMapping(boolean newState) {
+        preferSourceBeforeTargetInMapping.setSelected( newState );
+    }
+
+}
diff --git a/src/main/java/org/mapstruct/intellij/settings/ProjectSettingsPage.java b/src/main/java/org/mapstruct/intellij/settings/ProjectSettingsPage.java
new file mode 100644
index 00000000..9bea144d
--- /dev/null
+++ b/src/main/java/org/mapstruct/intellij/settings/ProjectSettingsPage.java
@@ -0,0 +1,71 @@
+/*
+ * Copyright MapStruct Authors.
+ *
+ * Licensed under the Apache License version 2.0, available at http://www.apache.org/licenses/LICENSE-2.0
+ */
+package org.mapstruct.intellij.settings;
+
+import javax.swing.JComponent;
+
+import com.intellij.openapi.options.Configurable;
+import com.intellij.openapi.project.Project;
+import org.jetbrains.annotations.Nls;
+import org.mapstruct.intellij.MapStructBundle;
+
+import static org.mapstruct.intellij.settings.ProjectSettings.isPreferSourceBeforeTargetInMapping;
+
+/**
+ * @author Filip Hrisafov
+ */
+public class ProjectSettingsPage implements Configurable {
+
+    private ProjectSettingsComponent settingsComponent;
+
+    private final Project myProject;
+
+    public ProjectSettingsPage(Project project) {
+        myProject = project;
+    }
+
+    @Nls
+    @Override
+    public String getDisplayName() {
+        return MapStructBundle.message( "plugin.settings.title" );
+    }
+
+    @Override
+    public JComponent createComponent() {
+        settingsComponent = new ProjectSettingsComponent();
+        return settingsComponent.getPanel();
+    }
+
+    @Override
+    public JComponent getPreferredFocusedComponent() {
+        return settingsComponent.getPreferredFocusedComponent();
+    }
+
+    @Override
+    public boolean isModified() {
+        boolean modified = settingsComponent.getPreferSourceBeforeTargetInMapping() !=
+            isPreferSourceBeforeTargetInMapping( myProject );
+        return modified;
+    }
+
+    @Override
+    public void apply() {
+        ProjectSettings.setPreferSourceBeforeTargetInMapping(
+            myProject,
+            settingsComponent.getPreferSourceBeforeTargetInMapping()
+        );
+    }
+
+    @Override
+    public void reset() {
+        settingsComponent.setPreferSourceBeforeTargetInMapping( isPreferSourceBeforeTargetInMapping( myProject ) );
+    }
+
+    @Override
+    public void disposeUIResources() {
+        settingsComponent = null;
+    }
+}
diff --git a/src/main/resources/META-INF/plugin.xml b/src/main/resources/META-INF/plugin.xml
index 87977472..85e7ad3a 100644
--- a/src/main/resources/META-INF/plugin.xml
+++ b/src/main/resources/META-INF/plugin.xml
@@ -40,6 +40,12 @@
     <renameHandler implementation="org.mapstruct.intellij.rename.MapstructSourceTargetParameterRenameHandler"/>
     <multiHostInjector implementation="org.mapstruct.intellij.expression.JavaExpressionInjector"/>
 
+    <projectConfigurable groupId="language"
+                         id="preferences.language.MapStruct"
+                         bundle="org.mapstruct.intellij.messages.MapStructBundle"
+                         key="plugin.settings.title"
+                         instance="org.mapstruct.intellij.settings.ProjectSettingsPage"/>
+
     <localInspection language="JAVA"
                      enabledByDefault="true"
                      level="ERROR"
diff --git a/src/main/resources/org/mapstruct/intellij/messages/MapStructBundle.properties b/src/main/resources/org/mapstruct/intellij/messages/MapStructBundle.properties
index 5eaead6f..ee2a02ac 100644
--- a/src/main/resources/org/mapstruct/intellij/messages/MapStructBundle.properties
+++ b/src/main/resources/org/mapstruct/intellij/messages/MapStructBundle.properties
@@ -14,3 +14,6 @@ inspection.wrong.usage.mappers.factory.remove.mappers.usage=Remove usage of Mapp
 intention.add.ignore.all.unmapped.target.properties=Add ignore all unmapped target properties
 intention.add.ignore.unmapped.target.property=Add ignore unmapped target property
 intention.add.unmapped.target.property=Add unmapped target property
+plugin.settings.title=MapStruct
+plugin.settings.quickFix.title=Quick fix properties
+plugin.settings.quickFix.preferSourceBeforeTargetInMapping=Prefer source before target in @Mapping
diff --git a/src/test/java/org/mapstruct/intellij/inspection/UnmappedTargetPropertiesInspectionSourceBeforeTargetTest.java b/src/test/java/org/mapstruct/intellij/inspection/UnmappedTargetPropertiesInspectionSourceBeforeTargetTest.java
new file mode 100644
index 00000000..2594df7b
--- /dev/null
+++ b/src/test/java/org/mapstruct/intellij/inspection/UnmappedTargetPropertiesInspectionSourceBeforeTargetTest.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright MapStruct Authors.
+ *
+ * Licensed under the Apache License version 2.0, available at http://www.apache.org/licenses/LICENSE-2.0
+ */
+package org.mapstruct.intellij.inspection;
+
+import java.util.List;
+
+import com.intellij.codeInsight.intention.IntentionAction;
+import org.jetbrains.annotations.NotNull;
+import org.mapstruct.intellij.settings.ProjectSettings;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * @author Filip Hrisafov
+ */
+public class UnmappedTargetPropertiesInspectionSourceBeforeTargetTest extends BaseInspectionTest {
+
+    @NotNull
+    @Override
+    protected Class<UnmappedTargetPropertiesInspection> getInspection() {
+        return UnmappedTargetPropertiesInspection.class;
+    }
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+        myFixture.copyFileToProject(
+            "UnmappedTargetPropertiesData.java",
+            "org/example/data/UnmappedTargetPropertiesData.java"
+        );
+    }
+
+    public void testUnmappedTargetPropertiesSourceBeforeTarget() {
+        ProjectSettings.setPreferSourceBeforeTargetInMapping( myFixture.getProject(), true );
+        doTest();
+        String testName = getTestName( false );
+        List<IntentionAction> allQuickFixes = myFixture.getAllQuickFixes();
+
+        assertThat( allQuickFixes )
+            .extracting( IntentionAction::getText )
+            .as( "Intent Text" )
+            .containsExactly(
+                "Ignore unmapped target property: 'testName'",
+                "Add unmapped target property: 'testName'",
+                "Ignore unmapped target property: 'moreTarget'",
+                "Add unmapped target property: 'moreTarget'",
+                "Ignore unmapped target property: 'testName'",
+                "Add unmapped target property: 'testName'"
+            );
+
+        allQuickFixes.forEach( myFixture::launchAction );
+        myFixture.checkResultByFile( testName + "_after.java" );
+    }
+}
diff --git a/testData/inspection/UnmappedTargetPropertiesSourceBeforeTarget.java b/testData/inspection/UnmappedTargetPropertiesSourceBeforeTarget.java
new file mode 100644
index 00000000..a1094dce
--- /dev/null
+++ b/testData/inspection/UnmappedTargetPropertiesSourceBeforeTarget.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright MapStruct Authors.
+ *
+ * Licensed under the Apache License version 2.0, available at http://www.apache.org/licenses/LICENSE-2.0
+ */
+
+import org.mapstruct.Context;
+import org.mapstruct.Mapper;
+import org.mapstruct.Mapping;
+import org.mapstruct.MappingTarget;
+import org.mapstruct.Mappings;
+import org.example.data.UnmappedTargetPropertiesData.Target;
+import org.example.data.UnmappedTargetPropertiesData.Source;
+
+@Mapper
+interface SingleMappingsMapper {
+
+    @Mappings({
+        @Mapping(target = "moreTarget", source = "moreSource")
+    })
+    Target <warning descr="Unmapped target property: testName">map</warning>(Source source);
+}
+
+@Mapper
+interface SingleMappingMapper {
+
+    @Mapping(target = "testName", source = "name")
+    Target <warning descr="Unmapped target property: moreTarget">map</warning>(Source source);
+}
+
+@Mapper
+interface UpdateMapper {
+
+    @Mapping(target = "moreTarget", source = "moreSource")
+    void <warning descr="Unmapped target property: testName">update</warning>(@MappingTarget Target target, Source source);
+}
diff --git a/testData/inspection/UnmappedTargetPropertiesSourceBeforeTarget_after.java b/testData/inspection/UnmappedTargetPropertiesSourceBeforeTarget_after.java
new file mode 100644
index 00000000..b8a0ae27
--- /dev/null
+++ b/testData/inspection/UnmappedTargetPropertiesSourceBeforeTarget_after.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright MapStruct Authors.
+ *
+ * Licensed under the Apache License version 2.0, available at http://www.apache.org/licenses/LICENSE-2.0
+ */
+
+import org.mapstruct.Context;
+import org.mapstruct.Mapper;
+import org.mapstruct.Mapping;
+import org.mapstruct.MappingTarget;
+import org.mapstruct.Mappings;
+import org.example.data.UnmappedTargetPropertiesData.Target;
+import org.example.data.UnmappedTargetPropertiesData.Source;
+
+@Mapper
+interface SingleMappingsMapper {
+
+    @Mappings({
+            @Mapping(target = "moreTarget", source = "moreSource"),
+            @Mapping(target = "testName", ignore = true),
+            @Mapping(source = "", target = "testName")
+    })
+    Target map(Source source);
+}
+
+@Mapper
+interface SingleMappingMapper {
+
+    @Mapping(source = "", target = "moreTarget")
+    @Mapping(target = "moreTarget", ignore = true)
+    @Mapping(target = "testName", source = "name")
+    Target map(Source source);
+}
+
+@Mapper
+interface UpdateMapper {
+
+    @Mapping(source = "", target = "testName")
+    @Mapping(target = "testName", ignore = true)
+    @Mapping(target = "moreTarget", source = "moreSource")
+    void update(@MappingTarget Target target, Source source);
+}
