refactor(lsp/java): move qualified name finding logic to JavaCompilerService

lsp/java/src/main/java/com/itsaky/androidide/lsp/java/actions/diagnostics/AddImportAction.kt

@@ -81,22 +81,9 @@ class AddImportAction : BaseJavaCodeAction() {
       return
     }
 
-    var found = false
-    val simpleName = jcDiagnostic.args[1]
-    for (name in compiler.publicTopLevelTypes()) {
-      var klass = name
-
-      // This will be true in a test environment
-      if (klass.contains("/")) {
-        klass = name.replace('/', '.')
-      }
-
-      if (klass.endsWith(".$simpleName")) {
-        found = true
-        // There is at least one class to import
-        break
-      }
-    }
+    val found =
+      jcDiagnostic.args[1]?.toString()?.let { compiler.findQualifiedNames(it, true).isNotEmpty() }
+        ?: false
 
     visible = found
     enabled = found

lsp/java/src/main/java/com/itsaky/androidide/lsp/java/compiler/CompilerProvider.java

@@ -24,6 +24,7 @@ import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.util.Arrays;
 import java.util.Collection;
+import java.util.List;
 import java.util.Optional;
 import java.util.TreeSet;
 import java.util.stream.Collectors;
@@ -45,6 +46,12 @@ public interface CompilerProvider {
 
   Path[] findMemberReferences(String className, String memberName);
 
+  default List<String> findQualifiedNames(String simpleName) {
+    return findQualifiedNames(simpleName, false);
+  }
+
+  List<String> findQualifiedNames(String simpleName, boolean onlyOne);
+
   ParseTask parse(Path file);
 
   ParseTask parse(JavaFileObject file);

lsp/java/src/main/java/com/itsaky/androidide/lsp/java/compiler/JavaCompilerService.java

@@ -220,6 +220,25 @@ public class JavaCompilerService implements CompilerProvider {
     return candidates.toArray(new Path[0]);
   }
 
+  @Override
+  public List<String> findQualifiedNames(String simpleName, boolean onlyOne) {
+    final var names = new ArrayList<String>();
+    for (var name : publicTopLevelTypes()) {
+      // This will be true in a test environment
+      if (name.contains("/")) {
+        name = name.replace('/', '.');
+      }
+
+      if (name.endsWith(".$simpleName")) {
+        names.add(name);
+        if (onlyOne) {
+          break;
+        }
+      }
+    }
+    return names;
+  }
+
   @Override
   public ParseTask parse(Path file) {
     Parser parser = Parser.parseFile(file);