From 7d8c94698a893a1f25940af3a5b7f770e3d36cb7 Mon Sep 17 00:00:00 2001
From: Jose Alberto Hernandez <alberto@MacBook-Pro.local>
Date: Fri, 25 Nov 2022 14:03:59 -0600
Subject: [PATCH] Office hierarchy view as tree

---
 .../organization/offices/office-node.model.ts |  34 ++++
 .../office-tree-service.service.spec.ts       |  16 ++
 .../offices/office-tree-service.service.ts    |  81 +++++++++
 .../offices/offices.component.html            | 158 ++++++++++++++++--
 .../offices/offices.component.scss            |  26 +++
 .../organization/offices/offices.component.ts |  66 +++++++-
 6 files changed, 360 insertions(+), 21 deletions(-)
 create mode 100644 src/app/organization/offices/office-node.model.ts
 create mode 100644 src/app/organization/offices/office-tree-service.service.spec.ts
 create mode 100644 src/app/organization/offices/office-tree-service.service.ts

diff --git a/src/app/organization/offices/office-node.model.ts b/src/app/organization/offices/office-node.model.ts
new file mode 100644
index 000000000..8a0669eed
--- /dev/null
+++ b/src/app/organization/offices/office-node.model.ts
@@ -0,0 +1,34 @@
+/**
+ * Office Node model.
+ */
+ export class OfficeNode {
+
+  /** Office Node children. */
+  children: OfficeNode[];
+
+  name: string;
+  id: string;
+  parentId: string;
+  hierarchy: string;
+  externalId: string;
+  parentName: string;
+  openingDate: string;
+
+  constructor(name: string,
+              id: string = '',
+              parentId: string = '',
+              hierarchy: string = '',
+              externalId: string = '',
+              parentName: string = '',
+              openingDate: string = '') {
+    this.name = name;
+    this.id = id;
+    this.parentId = parentId;
+    this.hierarchy = hierarchy;
+    this.externalId = externalId;
+    this.parentName = parentName;
+    this.openingDate = openingDate;
+    this.children = [];
+  }
+
+}
diff --git a/src/app/organization/offices/office-tree-service.service.spec.ts b/src/app/organization/offices/office-tree-service.service.spec.ts
new file mode 100644
index 000000000..557e75523
--- /dev/null
+++ b/src/app/organization/offices/office-tree-service.service.spec.ts
@@ -0,0 +1,16 @@
+import { TestBed } from '@angular/core/testing';
+
+import { OfficeTreeServiceService } from './office-tree-service.service';
+
+describe('OfficeTreeServiceService', () => {
+  let service: OfficeTreeServiceService;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({});
+    service = TestBed.inject(OfficeTreeServiceService);
+  });
+
+  it('should be created', () => {
+    expect(service).toBeTruthy();
+  });
+});
diff --git a/src/app/organization/offices/office-tree-service.service.ts b/src/app/organization/offices/office-tree-service.service.ts
new file mode 100644
index 000000000..10a5fa04a
--- /dev/null
+++ b/src/app/organization/offices/office-tree-service.service.ts
@@ -0,0 +1,81 @@
+/** Angular Imports */
+import { Injectable } from '@angular/core';
+
+/** rxjs Imports */
+import { BehaviorSubject } from 'rxjs';
+
+/** Custom Components */
+import { OfficeNode } from './office-node.model';
+
+/**
+ * Office tree service.
+ */
+@Injectable({
+  providedIn: 'root'
+})
+export class OfficeTreeService {
+
+  /** Office data. */
+  officesData: any;
+  /** Offices tree data behavior subject to represent offices tree nodes. */
+  treeDataChange = new BehaviorSubject<OfficeNode[]>([]);
+
+  /**
+   * Gets the offices tree nodes.
+   */
+  get treeData(): OfficeNode[] { return this.treeDataChange.value; }
+
+  constructor() {  }
+
+  /**
+   * Builds the offices tree and emits the value.
+   * @param {any} officesData Offices data.
+   */
+  initialize(officesData: any) {
+    const treeData = this.buildOfficeTree(officesData);
+    this.treeDataChange.next(treeData);
+  }
+
+  /**
+   * Builds and returns the offices tree.
+   * @param {any} officeData Offices data.
+   * @returns {OfficeNode} Offices tree nodes.
+   */
+  buildOfficeTree(officesData: any): OfficeNode[] {
+    const officeTree: OfficeNode[] = [];
+
+    // Header nodes
+    const mainOffice = officesData.find((office: any) => office.hierarchy === '.');
+    officeTree.push(new OfficeNode(mainOffice.name, mainOffice.id));
+
+    // Sort by parent id (so that child nodes can be added properly)
+    officesData.sort((officeOne: any, officeTwo: any) => {
+      if (!officeOne.parentId) {
+        officeOne.parentId = 0;
+      }
+      return officeOne.parentId - officeTwo.parentId;
+    });
+
+    const offices: OfficeNode[] = [];
+
+    // Add offices to any array where index for each is denoted by its id
+    for (const office of officesData) {
+      offices[office.id] =
+        new OfficeNode(office.name, office.id, office.parentId, office.hierarchy, office.externalId, office.parentName, office.openingDate);
+    }
+
+    // Construct offices tree by adding all nodes belonging to headers (with parent id = 0),
+    // and rest as children to respective parent nodes.
+    for (const office of officesData) {
+      if (office.hierarchy !== '.') {
+        if (office.parentId === 1) {
+          officeTree[0].children.push(offices[office.id]);
+        } else {
+          offices[office.parentId].children.push(offices[office.id]);
+        }
+      }
+    }
+    return officeTree;
+  }
+
+}
diff --git a/src/app/organization/offices/offices.component.html b/src/app/organization/offices/offices.component.html
index ccc568feb..85e2f40c8 100644
--- a/src/app/organization/offices/offices.component.html
+++ b/src/app/organization/offices/offices.component.html
@@ -1,15 +1,17 @@
 <div class="container m-b-20" fxLayout="row" fxLayoutAlign="end" fxLayoutGap="20px">
 
-  <div #buttonTreeView class="in-block">
-    <button mat-raised-button color="primary">
-      <fa-icon icon="sitemap"></fa-icon>&nbsp;&nbsp;
-      Tree View
-    </button>
-  </div>
+  <mat-button-toggle-group [formControl]="viewGroup">
+    <mat-button-toggle value="listView">
+      <fa-icon icon="list"></fa-icon>
+    </mat-button-toggle>
+    <mat-button-toggle value="treeView">
+      <fa-icon icon="sitemap"></fa-icon>
+    </mat-button-toggle>
+  </mat-button-toggle-group>
 
   <div #buttonCreateOffice class="in-block">
     <button mat-raised-button color="primary" [routerLink]="['create']" *mifosxHasPermission="'CREATE_OFFICE'">
-      <fa-icon icon="plus"></fa-icon>&nbsp;&nbsp;
+      <fa-icon icon="plus" class="m-r-10"></fa-icon>
       Create Office
     </button>
   </div>
@@ -17,43 +19,44 @@
   <div #buttonImportOffices class="in-block">
     <button mat-raised-button color="primary" *mifosxHasPermission="'CREATE_OFFICE'"
       [routerLink]="['/organization', 'bulk-import', 'Offices']">
-      <fa-icon icon="upload"></fa-icon>&nbsp;&nbsp;
+      <fa-icon icon="upload" class="m-r-10"></fa-icon>
       Import Offices
     </button>
   </div>
 
 </div>
 
-<div class="container">
+<div class="container" [hidden]="viewGroup.value !== 'listView'">
 
-  <div #filter fxLayout="row" fxLayoutGap="20px">
+  <div fxLayout="row" fxLayoutGap="20px">
     <mat-form-field fxFlex>
-      <mat-label>Filter</mat-label>
+      <mat-label>{{ 'Filter'| translate}}</mat-label>
       <input matInput (keyup)="applyFilter($event.target.value)">
     </mat-form-field>
   </div>
 
-  <div #tableOffices class="mat-elevation-z8">
+  <!-- List View -->
+  <div class="mat-elevation-z8">
 
     <table mat-table [dataSource]="dataSource" matSort>
 
       <ng-container matColumnDef="name">
-        <th mat-header-cell *matHeaderCellDef mat-sort-header> Office Name </th>
+        <th mat-header-cell *matHeaderCellDef mat-sort-header>{{' Office Name '|translate}}</th>
         <td mat-cell *matCellDef="let offices"> {{ offices.name }} </td>
       </ng-container>
 
       <ng-container matColumnDef="externalId">
-        <th mat-header-cell *matHeaderCellDef mat-sort-header> External ID </th>
+        <th mat-header-cell *matHeaderCellDef mat-sort-header>{{' External ID '|translate}}</th>
         <td mat-cell *matCellDef="let offices"> {{ offices.externalId }} </td>
       </ng-container>
 
       <ng-container matColumnDef="parentName">
-        <th mat-header-cell *matHeaderCellDef mat-sort-header> Parent Office </th>
+        <th mat-header-cell *matHeaderCellDef mat-sort-header>{{' Parent Office '|translate}}</th>
         <td mat-cell *matCellDef="let offices"> {{ offices.parentName }} </td>
       </ng-container>
 
       <ng-container matColumnDef="openingDate">
-        <th mat-header-cell *matHeaderCellDef mat-sort-header> Opened On </th>
+        <th mat-header-cell *matHeaderCellDef mat-sort-header>{{' Opened On '|translate}}</th>
         <td mat-cell *matCellDef="let offices"> {{ offices.openingDate | dateFormat }} </td>
       </ng-container>
 
@@ -66,6 +69,129 @@
     <mat-paginator [pageSizeOptions]="[10, 25, 50, 100]" showFirstLastButtons></mat-paginator>
 
   </div>
+</div>
+
+<!-- Tree View -->
+<div class="container" [hidden]="viewGroup.value !== 'treeView'">
+
+  <div class="m-b-20" fxLayout="row" fxLayoutAlign="start" fxLayoutGap="20px">
+    <button mat-raised-button (click)="nestedTreeControl.expandAll()">
+      {{'Expand All'|translate}}
+    </button>
+    <button mat-raised-button (click)="nestedTreeControl.collapseAll()">
+      {{'Collapse All'|translate}}
+    </button>
+  </div>
+
+  <div fxLayout="row" fxLayoutGap="4%" fxLayout.lt-md="column">
+
+    <div fxFlex>
+
+      <mat-card>
+
+        <mat-card-content>
+
+          <mat-tree [dataSource]="nestedTreeDataSource" [treeControl]="nestedTreeControl" class="office-tree">
+
+            <mat-tree-node *matTreeNodeDef="let node" matTreeNodeToggle>
+              <li class="mat-tree-node">
+                <button mat-icon-button disabled></button>
+                <span (click)="viewOfficeNode(node)" class="m-r-10">
+                  {{ node.name }}
+                </span>
+              </li>
+            </mat-tree-node>
+
+            <mat-nested-tree-node *matTreeNodeDef="let node; when: hasNestedChild">
+              <li>
+                <div class="mat-tree-node">
+                  <button mat-icon-button matTreeNodeToggle [attr.aria-label]="'toggle ' + node.name">
+                    <fa-icon class="mat-icon-rtl-mirror"
+                      icon="{{ nestedTreeControl.isExpanded(node) ? 'chevron-down' : 'chevron-right' }}"></fa-icon>
+                  </button>
+                  <span (click)="viewOfficeNode(node)" class="m-r-10">
+                    {{ node.name }}
+                  </span>
+                </div>
+                <ul [class.office-tree-invisible]="!nestedTreeControl.isExpanded(node)">
+                  <ng-container matTreeNodeOutlet></ng-container>
+                </ul>
+              </li>
+            </mat-nested-tree-node>
+
+          </mat-tree>
+
+        </mat-card-content>
+
+      </mat-card>
+
+    </div>
+
+    <div fxFlex="48%" *ngIf="office">
+
+      <mat-card>
+
+        <mat-card-content>
+
+          <div fxLayout="row">
+
+            <mat-card-title>
+              {{ office.name }}
+            </mat-card-title>
+
+            <div fxFlex fxLayoutAlign="end">
+              <button mat-icon-button (click)="closeOffice()">
+                <fa-icon icon="times"></fa-icon>
+              </button>
+            </div>
+
+          </div>
+
+          <mat-tab-group>
+
+            <mat-tab label="General">
+
+              <div fxLayout="row wrap" class="content">
+
+                <div fxFlex="50%" class="mat-body-strong" *ngIf="office.parentId">
+                  {{'Parent Office'|translate}}
+                </div>
+
+                <div fxFlex="50%" *ngIf="office.parentId">
+                  {{ office.parentName }}
+                </div>
+
+                <div fxFlex="50%" class="mat-body-strong">
+                 {{' Opened On'|translate}}
+                </div>
+
+                <div fxFlex="50%">
+                  {{ office.openingDate | date }}
+                </div>
+
+                <div fxFlex="50%" class="mat-body-strong" *ngIf="office.externalId">
+                  {{'External ID'|translate}}
+                </div>
+
+                <div fxFlex="50%" *ngIf="office.externalId">
+                  {{ office.externalId }}
+                </div>
+
+              </div>
+
+            </mat-tab>
+
+            <mat-tab *ngFor="let dataTable of dataTablesData" label="{{ dataTable.registeredTableName }}"></mat-tab>
+
+          </mat-tab-group>
+
+        </mat-card-content>
+
+      </mat-card>
+
+    </div>
+
+  </div>
 
 </div>
 
diff --git a/src/app/organization/offices/offices.component.scss b/src/app/organization/offices/offices.component.scss
index 24edb63bb..9b181acc8 100644
--- a/src/app/organization/offices/offices.component.scss
+++ b/src/app/organization/offices/offices.component.scss
@@ -5,3 +5,29 @@ table {
     cursor: pointer;
   }
 }
+
+.content {
+  div {
+    margin: 1rem 0;
+    word-wrap: break-word;
+  }
+}
+
+.office-tree {
+  ul,
+  li {
+    margin-top: 0;
+    margin-bottom: 0;
+    list-style-type: none;
+  }
+
+  li {
+    span {
+      cursor: pointer;
+    }
+  }
+
+  .office-tree-invisible {
+    display: none;
+  }
+}
diff --git a/src/app/organization/offices/offices.component.ts b/src/app/organization/offices/offices.component.ts
index 12e232578..7424c12ec 100644
--- a/src/app/organization/offices/offices.component.ts
+++ b/src/app/organization/offices/offices.component.ts
@@ -11,6 +11,11 @@ import { of } from 'rxjs';
 /** Custom Services */
 import { PopoverService } from '../../configuration-wizard/popover/popover.service';
 import { ConfigurationWizardService } from '../../configuration-wizard/configuration-wizard.service';
+import { FormControl } from '@angular/forms';
+import { OfficeNode } from './office-node.model';
+import { NestedTreeControl } from '@angular/cdk/tree';
+import { MatTreeNestedDataSource } from '@angular/material/tree';
+import { OfficeTreeService } from './office-tree-service.service';
 
 /**
  * Offices component.
@@ -21,6 +26,8 @@ import { ConfigurationWizardService } from '../../configuration-wizard/configura
   styleUrls: ['./offices.component.scss']
 })
 export class OfficesComponent implements OnInit, AfterViewInit {
+  /** Button toggle group form control for type of view. (list/tree) */
+  viewGroup = new FormControl('listView');
 
   /** Offices data. */
   officesData: any;
@@ -28,12 +35,21 @@ export class OfficesComponent implements OnInit, AfterViewInit {
   displayedColumns: string[] = ['name', 'externalId', 'parentName', 'openingDate'];
   /** Data source for offices table. */
   dataSource: MatTableDataSource<any>;
+  /** Nested tree control for offices tree. */
+  nestedTreeControl: NestedTreeControl<OfficeNode>;
+  /** Nested tree data source for offices tree. */
+  nestedTreeDataSource: MatTreeNestedDataSource<OfficeNode>;
+  /** Selected Office. */
+  office: OfficeNode;
+  /** Office data tables. */
+  dataTablesData: any;
 
   /** Paginator for offices table. */
   @ViewChild(MatPaginator, { static: true }) paginator: MatPaginator;
   /** Sorter for offices table. */
   @ViewChild(MatSort, { static: true }) sort: MatSort;
 
+
   /* Reference of tree view button */
   @ViewChild('buttonTreeView') buttonTreeView: ElementRef<any>;
   /* Template for popover on tree view button */
@@ -47,16 +63,22 @@ export class OfficesComponent implements OnInit, AfterViewInit {
    * Retrieves the offices data from `resolve`.
    * @param {ActivatedRoute} route Activated Route.
    * @param {Router} router Router.
+   * @param {OfficeTreeService} officeTreeService office tree service.
    * @param {ConfigurationWizardService} configurationWizardService ConfigurationWizard Service.
    * @param {PopoverService} popoverService PopoverService.
    */
   constructor(private route: ActivatedRoute,
-              private router: Router,
-              private configurationWizardService: ConfigurationWizardService,
-              private popoverService: PopoverService) {
-    this.route.data.subscribe(( data: { offices: any }) => {
+    private router: Router,
+    private officeTreeService: OfficeTreeService,
+    private configurationWizardService: ConfigurationWizardService,
+    private popoverService: PopoverService) {
+    this.route.data.subscribe(( data: { offices: any, officeDataTables: any }) => {
       this.officesData = data.offices;
+      officeTreeService.initialize(this.officesData);
+      this.dataTablesData = data.officeDataTables;
     });
+    this.nestedTreeControl = new NestedTreeControl<OfficeNode>(this.getChildren);
+    this.nestedTreeDataSource = new MatTreeNestedDataSource<OfficeNode>();
   }
 
   /**
@@ -70,8 +92,13 @@ export class OfficesComponent implements OnInit, AfterViewInit {
   /**
    * Sets the offices table.
    */
-  ngOnInit() {
+   ngOnInit() {
     this.setOffices();
+    this.officeTreeService.treeDataChange.subscribe((officeTreeData: OfficeNode[]) => {
+      this.nestedTreeDataSource.data = officeTreeData;
+      this.nestedTreeControl.expand(this.nestedTreeDataSource.data[0]);
+      this.nestedTreeControl.dataNodes = officeTreeData;
+    });
   }
 
   /**
@@ -83,6 +110,35 @@ export class OfficesComponent implements OnInit, AfterViewInit {
     this.dataSource.sort = this.sort;
   }
 
+  /**
+   * View selected office.
+   * @param {OfficeNode} office Office to be viewed.
+   */
+   viewOfficeNode(office: OfficeNode) {
+    if (office.id) {
+      this.office = office;
+    } else {
+      delete this.office;
+    }
+  }
+
+  /**
+   * Closes the current view for office
+   */
+  closeOffice() {
+    delete this.office;
+  }
+
+  /**
+   * Checks if selected node in tree has children.
+   */
+  hasNestedChild = (_: number, node: OfficeNode) => node.children.length;
+
+  /**
+   * Gets the children of selected node in tree.
+   */
+  private getChildren = (node: OfficeNode) => of(node.children);
+
   /**
    * Popover function
    * @param template TemplateRef<any>.