Implement Attributes/Outputs FE

Change-Id: I014bb0ebc07f3fea4266a4f295172eadee546705
Signed-off-by: Vasyl Razinkov <vasyl.razinkov@est.tech>
Issue-ID: SDC-3448

1 files changed, 84 insertions, 0 deletions

diff --git a/catalog-ui/src/app/ng2/pages/attributes-outputs/services/hierarchy-nav.service.ts b/catalog-ui/src/app/ng2/pages/attributes-outputs/services/hierarchy-nav.service.ts
new file mode 100644
index 0000000000..cef2eb2793
--- /dev/null
+++ b/catalog-ui/src/app/ng2/pages/attributes-outputs/services/hierarchy-nav.service.ts
@@ -0,0 +1,84 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2021 Nordix Foundation. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+import {Injectable} from '@angular/core';
+import {AttributeFEModel} from "../../../../models/attributes-outputs/attribute-fe-model";
+import {SimpleFlatAttribute} from "app/models/attributes-outputs/simple-flat-attribute";
+import {DerivedFEAttribute} from "../../../../models/attributes-outputs/derived-fe-attribute";
+
+@Injectable()
+export class HierarchyNavService {
+  /**
+   * Build hierarchy structure for the tree when user selects on table row.
+   * First create Array<SimpleFlatAttribute> and insert also the parent (AttributeFEModel) to this array.
+   * The Array is flat and contains SimpleFlatAttribute that has parentName and uniqueId.
+   * Now we build hierarchy from this Array (that includes children) and return it for the tree
+   *
+   * @argument attribute: AttributeFEModel - attribute contains flattenedChildren array of DerivedFEAttribute
+   * @returns  Array<SimpleFlatAttribute> - containing children Array<SimpleFlatAttribute>, augmantin children to SimpleFlatAttribute.
+   */
+  public getSimpleAttributesTree(attribute: AttributeFEModel, instanceName: string): Array<SimpleFlatAttribute> {
+    // Build Array of SimpleFlatAttribute before unflatten function
+    let flatAttributes: Array<SimpleFlatAttribute> = [];
+    flatAttributes.push(this.createSimpleFlatAttribute(attribute, instanceName)); // Push the root attribute
+    attribute.flattenedChildren.forEach((child: DerivedFEAttribute): void => {
+      if (child.isChildOfListOrMap && child.schema.property.isSimpleType) return; //do not display non-complex children of list or map
+      flatAttributes.push(this.createSimpleFlatAttribute(child, instanceName));
+    });
+
+    let tree = this.unflatten(flatAttributes, '', []);
+    return tree[0].childrens; // Return the childrens without the root.
+  }
+
+  public createSimpleFlatAttribute = (attribute: AttributeFEModel | DerivedFEAttribute, instanceName: string): SimpleFlatAttribute => {
+    if (attribute instanceof AttributeFEModel) {
+      return new SimpleFlatAttribute(attribute.uniqueId, attribute.name, attribute.name, '', instanceName);
+    } else {
+      let attribName: string = (attribute.isChildOfListOrMap) ? attribute.mapKey : attribute.name;
+      return new SimpleFlatAttribute(attribute.uniqueId, attribute.attributesName, attribName, attribute.parentName, instanceName);
+    }
+
+  }
+
+  /**
+   * Unflatten Array<SimpleFlatAttribute> and build hierarchy.
+   * The result will be Array<SimpleFlatAttribute> that augmantin with children for each SimpleFlatAttribute.
+   */
+  private unflatten(array: Array<SimpleFlatAttribute>, parent: any, tree?: any): any {
+    tree = typeof tree !== 'undefined' ? tree : [];
+    parent = typeof parent !== 'undefined' && parent !== '' ? parent : {path: ''};
+
+    var children = array.filter((child: SimpleFlatAttribute): boolean => {
+      return child.parentName == parent.path;
+    });
+
+    if (children && children.length) {
+      if (parent.path == '') {
+        tree = children;
+      } else {
+        parent['children'] = children;
+      }
+      children.forEach((child): void => {
+        this.unflatten(array, child);
+      });
+    }
+    return tree;
+  }
+}