Added comments and cleaned stuff up

src/app/components/backlog/backlog.component.ts

@@ -1,17 +1,12 @@
 import { Component } from '@angular/core';
 import {
   BackendService,
-  ScrumTask,
   ScrumUserstory,
   ScrumStatus,
   ScrumCategory,
   ScrumSprint,
 } from '../../services/backend.service';
 import { NgbModal } from '@ng-bootstrap/ng-bootstrap';
-import { TableComponentBase } from '../../services/table-component.base';
-import { getNumberForPriority } from '../../services/sorting.service';
-import { UserstoryFormComponent } from '../userstory-form/userstory-form.component';
-import { ActivatedRoute } from '@angular/router';
 import { SprintFormComponent } from '../sprint-form/sprint-form.component';
 
 
@@ -20,24 +15,24 @@ import { SprintFormComponent } from '../sprint-form/sprint-form.component';
   templateUrl: './backlog.component.html',
   styleUrls: ['./backlog.component.css'],
 })
-export class BacklogComponent extends TableComponentBase<
-  ScrumUserstory
-> {
-  public tasks: ScrumTask[] = [];
-  public filterPriority: string | null = null;
+
+
+export class BacklogComponent{
   public status: ScrumStatus[] = [];
   public categories: ScrumCategory[] = [];
   public sprints: ScrumSprint[] = [];
   public storys: ScrumUserstory[] = [];
-
   public selectedSprint: ScrumSprint;
 
+  /**
+   * Constructor of the class that initialized the communication with the backend
+   * @param backendService 
+   * @param modalService 
+   */
   constructor(
     private backendService: BackendService,
     private modalService: NgbModal,
-    private route: ActivatedRoute,
   ) {
-    super();
     backendService.getSprints().subscribe((response) => {
       if (response.status > 399) {
         alert('Fehler');
@@ -53,13 +48,6 @@ export class BacklogComponent extends TableComponentBase<
         this.storys.push(...response.body);
       }
     });
-    backendService.getTasks().subscribe((response) => {
-      if (response.status > 399) {
-        alert('Fehler');
-      } else {
-        this.tasks.push(...response.body);
-      }
-    });
     backendService.getAllStatus().subscribe((response) => {
       if (response.status > 399) {
         alert('Fehler');
@@ -76,46 +64,54 @@ export class BacklogComponent extends TableComponentBase<
     });
   }
 
-  public deleteUserstory(userstory: ScrumUserstory) {
-    this.backendService.deleteUserstory(userstory).subscribe((response) => {
-      if (response.status > 399) {
-        alert('Fehler');
-      }
-    });
-    const index = this.items.indexOf(userstory);
-    if (index !== -1) {
-      this.items.splice(index, 1);
-    }
+  /**
+   * Formats an ISO DateString to a simple date string in the format "DD.MM.YYYY"
+   * @param isoFormatString date formatted as an ISO DateString (Date objects get converted implicitly)
+   */
+  public toDateString(isoFormatString) {
+    const date = new Date(isoFormatString);
+    return `${date.getDate()}.${date.getMonth() + 1}.${date.getFullYear()}`;
   }
 
-  public openUserstoryForm(editUserstory?: ScrumUserstory) {
-    const modalRef = this.modalService.open(UserstoryFormComponent, {
-      backdrop: 'static',
-      keyboard: true,
-      size: 'lg'
-    });
-    if (editUserstory === null) {
-      modalRef.result.then((result) => {
-        this.items.push(result);
-      });
-    }
-    modalRef.componentInstance.userstory = editUserstory;
+  //#region getters
+
+  /**
+   * Getter that returns an array with all userstories that are in the currently selected sprint.
+   * The relation to the sprint is determined by the userstory's sprintid.
+   * If no sprint is selected it just returns an empty array.
+   */
+  public get choosen(): ScrumUserstory[]
+  {
+    if(this.selectedSprint === undefined){return null;}
+    return this.storys.filter(u => u.sprintid == this.selectedSprint.id);
   }
 
-  public getNumberOfTasks(userstory: ScrumUserstory) {
-    return this.tasks.filter((t) => t.userstoryid === userstory.id).length;
+  /**
+   * Getter that returns an array with all userstories that aren't in any sprint.
+   * The relation to no sprint is determined by the userstory's sprintid being undefined.
+   */
+  public get backlog(): ScrumUserstory[]
+  {
+    return this.storys.filter(u => u.sprintid === undefined);
   }
 
-  getCategoryTitleById(id) {
-    var category = this.categories.find((x) => x.id === id);
-    if (!category) {
-      return 'N/A';
-    }
-    return category.title;
+  /**
+   * Getter that returns the current sprint.
+   * The current sprint is selected by determining if todays date is between the startDate and the endDate of the sprint.
+   */
+  public get currentSprint(): ScrumSprint {
+    const now = Date.now();
+    return this.sprints.find(s => Date.parse(s.startDate) < now && Date.parse(s.endDate) > now);
   }
 
-  // Sprint-Backlog
+  //#endregion getters
 
+  //#region backlogFunctions
+
+  /**
+   * Adds a userstory to the currently selected sprint by changing it's sprintid to the current sprint's id
+   * @param userstory userstory object that shall be added to the selected sprint's backlog
+   */
   public addToSprintBacklog(userstory: ScrumUserstory) {
     userstory.sprintid = this.selectedSprint.id;
     this.backendService.putUserstory(userstory).subscribe((response) => {
@@ -125,6 +121,10 @@ export class BacklogComponent extends TableComponentBase<
     });
   }
 
+    /**
+   * Deletes a userstory from the currently selected sprint by changing it's sprintid to undefined
+   * @param userstory userstory object that shall be removed from the selected sprint's backlog
+   */
   public deleteFromSprintBacklog(userstory: ScrumUserstory){
     userstory.sprintid = undefined;
     this.backendService.putUserstory(userstory).subscribe((response) => {
@@ -134,37 +134,23 @@ export class BacklogComponent extends TableComponentBase<
     });
   }
 
-  public get choosen(): ScrumUserstory[]
-  {
-    if(this.selectedSprint === undefined){return null;}
-    return this.storys.filter(u => u.sprintid == this.selectedSprint.id);
-  }
+  //#endregion backlogFunctions
 
-  public get backlog(): ScrumUserstory[]
-  {
-    return this.storys.filter(u => u.sprintid === undefined);
-  }
-
-  public get currentSprint(): ScrumSprint {
-    const now = Date.now();
-    return this.sprints.find(s => Date.parse(s.startDate) < now && Date.parse(s.endDate) > now);
-  }
-
-  public toDateString(isoFormatString) {
-    const date = new Date(isoFormatString);
-    return `${date.getDate()}.${date.getMonth() + 1}.${date.getFullYear()}`;
-  }
-
-  public openSprintForm(editSprint?: ScrumSprint) {
+  //#region modals
+  /**
+   * Opens the SprintForm Modal to let the user create a new sprint.
+   * The created sprint get pushed to the database and the local sprints array.
+   */
+  public openSprintForm() {
     const modalRef = this.modalService.open(SprintFormComponent, {
       backdrop: 'static',
       keyboard: true,
+      size: "lg",
+    });
+
+    modalRef.result.then(result => {
+      this.sprints.push(result);
     });
-    if (editSprint === null) {
-      modalRef.result.then(result => {
-        this.items.push(result);
-      });
     }
-    modalRef.componentInstance.sprint = editSprint;
-  }
+  //#endregion modals
 }