Added task settings

Added support for task errors

Added support for lt, gt etc. db comparisons

Added task to delete old files

src/app/components/task-settings/task-settings.component.html

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+<h4 mat-dialog-title><ng-container i18n="Task settings">Task settings - {{task.title}}</ng-container></h4>
+
+<mat-dialog-content>
+    <div *ngIf="task_key === 'delete_old_files'">
+        <mat-form-field color="accent">
+            <mat-label i18n="Delete files older than">Delete files older than</mat-label>
+            <input [(ngModel)]="new_options['threshold_days']" matInput required>
+            <span matTextSuffix>days</span>
+        </mat-form-field>
+    </div>
+
+    <div>
+        <mat-checkbox [(ngModel)]="new_options['auto_confirm']" i18n="Do not ask for confirmation">Do not ask for confirmation</mat-checkbox>
+    </div>
+</mat-dialog-content>
+
+<mat-dialog-actions>
+    <button mat-button mat-dialog-close>
+        <ng-container *ngIf="optionsChanged()" i18n="Task settings cancel button">Cancel</ng-container>
+        <ng-container *ngIf="!optionsChanged()" i18n="Task settings close button">Close</ng-container>
+    </button>
+    <button mat-button [disabled]="!optionsChanged()" (click)="saveSettings()"><ng-container i18n="Save button">Save</ng-container></button>
+</mat-dialog-actions>

src/app/components/task-settings/task-settings.component.spec.ts

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+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { TaskSettingsComponent } from './task-settings.component';
+
+describe('TaskSettingsComponent', () => {
+  let component: TaskSettingsComponent;
+  let fixture: ComponentFixture<TaskSettingsComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ TaskSettingsComponent ]
+    })
+    .compileComponents();
+
+    fixture = TestBed.createComponent(TaskSettingsComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

src/app/components/task-settings/task-settings.component.ts

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+import { Component, Inject } from '@angular/core';
+import { MAT_DIALOG_DATA } from '@angular/material/dialog';
+import { Task } from 'api-types';
+import { PostsService } from 'app/posts.services';
+
+@Component({
+  selector: 'app-task-settings',
+  templateUrl: './task-settings.component.html',
+  styleUrls: ['./task-settings.component.scss']
+})
+export class TaskSettingsComponent {
+  task_key: string;
+  new_options = {};
+  task: Task = null;
+
+  constructor(private postsService: PostsService, @Inject(MAT_DIALOG_DATA) public data: {task: Task}) {
+    this.task_key = this.data.task.key;
+    this.task = this.data.task;
+    if (!this.task.options) {
+      this.task.options = {};
+    }
+  }
+
+  ngOnInit(): void {
+    this.getSettings();
+  }
+
+  getSettings(): void {
+    this.postsService.getTask(this.task_key).subscribe(res => {
+      this.task = res['task'];
+      this.new_options = JSON.parse(JSON.stringify(this.task['options'])) || {};
+    });
+  }
+
+  saveSettings(): void {
+    this.postsService.updateTaskOptions(this.task_key, this.new_options).subscribe(() => {
+      this.getSettings();
+    }, () => {
+      this.getSettings();
+    });
+  }
+
+  optionsChanged(): boolean {
+    return JSON.stringify(this.new_options) !== JSON.stringify(this.task.options);
+  }
+}