fixed imports in typescript angular

Author: HugoMario

src/main/java/io/swagger/codegen/v3/generators/typescript/TypeScriptAngularClientCodegen.java

@@ -15,6 +15,7 @@
 import io.swagger.codegen.v3.CodegenParameter;
 import io.swagger.codegen.v3.CodegenOperation;
 import io.swagger.codegen.v3.SupportingFile;
+import io.swagger.codegen.v3.utils.ModelUtils;
 import io.swagger.codegen.v3.utils.SemVer;
 import io.swagger.v3.oas.models.media.ArraySchema;
 import io.swagger.v3.oas.models.media.BinarySchema;
@@ -27,6 +28,9 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import static io.swagger.codegen.v3.CodegenConstants.IS_ENUM_EXT_NAME;
+import static io.swagger.codegen.v3.generators.handlebars.ExtensionHelper.getBooleanValue;
+
 public class TypeScriptAngularClientCodegen extends AbstractTypeScriptClientCodegen {
 
     private static Logger LOGGER = LoggerFactory.getLogger(TypeScriptAngularClientCodegen.class);
@@ -455,6 +459,21 @@ public Map<String, Object> postProcessModels(Map<String, Object> objs) {
         return result;
     }
 
+    @Override
+    public Map<String, Object> postProcessAllModels(Map<String, Object> processedModels) {
+        for (Map.Entry<String, Object> entry : processedModels.entrySet()) {
+            final Map<String, Object> inner = (Map<String, Object>) entry.getValue();
+            final List<Map<String, Object>> models = (List<Map<String, Object>>) inner.get("models");
+            for (Map<String, Object> mo : models) {
+                final CodegenModel codegenModel = (CodegenModel) mo.get("model");
+                if (codegenModel.getIsAlias() && codegenModel.imports != null && !codegenModel.imports.isEmpty()) {
+                    mo.put("tsImports", toTsImports(codegenModel, codegenModel.imports));
+                }
+            }
+        }
+        return processedModels;
+    }
+
     private List<Map<String, String>> toTsImports(CodegenModel cm, Set<String> imports) {
         List<Map<String, String>> tsImports = new ArrayList<>();
         for (String im : imports) {

src/main/java/io/swagger/codegen/v3/generators/typescript/TypeScriptSchemaHandler.java

@@ -28,6 +28,7 @@ public void processComposedSchemas(CodegenModel codegenModel, Schema schema, Map
 
         if (isAlias) {
             codegenModel.getVendorExtensions().put(CodegenConstants.IS_ALIAS_EXT_NAME, Boolean.TRUE);
+            codegenModel.dataType = this.codegenConfig.getSchemaType(schema);
             this.codegenConfig.addImport(codegenModel, codegenModel.dataType);
         }
     }