Add persistent search input

frontend/src/app/components/search-input/search-input.component.ts

@@ -5,6 +5,7 @@ import {objToBase64} from '../../utils/base64conversion';
 import {PresetService} from '../../services/preset.service';
 import {Preset} from '../../interfaces/preset.interface';
 import {formatDate} from '@angular/common';
+import {SearchService} from '../../services/search.service';
 
 @Component({
   selector: 'app-search-input',
@@ -23,7 +24,7 @@ export class SearchInputComponent implements OnInit {
   singlePresetSelection = {};
   multiPresetSelection = {};
 
-  constructor(private router: Router, private ps: PresetService) {
+  constructor(private router: Router, private ps: PresetService, private ss: SearchService) {
     const from = new Date();
     const to = new Date();
     to.setDate(from.getDate() + 7);
@@ -40,8 +41,13 @@ export class SearchInputComponent implements OnInit {
     this.multiPresets = this.ps.multiPresets;
     this.multiPresetsKeys = [...this.multiPresets.keys()];
 
-    for (const preset of this.singlePresets) {
-      this.singlePresetSelection[preset.preset_id] = false;
+    const prevInput = this.ss.loadSearchInput();
+
+    if (prevInput) {
+      this.from = prevInput.from;
+      this.to = prevInput.to;
+      this.singlePresetSelection = prevInput.singlePresetSelection;
+      this.multiPresetSelection = prevInput.multiPresetSelection;
     }
   }
 
@@ -63,6 +69,14 @@ export class SearchInputComponent implements OnInit {
       }
     }
 
+    this.ss.saveSearchInput({
+      from: this.from,
+      to: this.to,
+      singlePresetSelection: this.singlePresetSelection,
+      multiPresetSelection: this.multiPresetSelection
+    });
+
+
     await this.router.navigate(['/search'], {queryParams: {q: objToBase64(query)}});
   }
 }

frontend/src/app/containers/search/search.component.ts

@@ -1,7 +1,7 @@
 import {Component, ElementRef, OnInit, ViewChild} from '@angular/core';
 import {ActivatedRoute, Router} from '@angular/router';
 import {Result} from '../../interfaces/result.interface';
-import {DataService} from '../../services/data.service';
+import {SearchService} from '../../services/search.service';
 
 @Component({
   selector: 'app-search',
@@ -16,7 +16,7 @@ export class SearchComponent implements OnInit {
   @ViewChild('result', {static: false})
   resultDiv: ElementRef;
 
-  constructor(private route: ActivatedRoute, private ds: DataService, private router: Router) {
+  constructor(private route: ActivatedRoute, private ss: SearchService, private router: Router) {
   }
 
   async ngOnInit() {
@@ -29,7 +29,7 @@ export class SearchComponent implements OnInit {
         return;
       }
 
-      this.results = await this.ds.searchRegions(this.queryString);
+      this.results = await this.ss.executeSearch(this.queryString);
       this.resultDiv.nativeElement.scrollIntoView({behavior: 'smooth', block: 'start'});
     });
   }

frontend/src/app/interfaces/search-request.interface.ts

@@ -8,10 +8,10 @@ export interface Query {
   sun_hours?: number[];
   alcohol_costs?: number[];
   food_costs?: number[];
-  local_transportation_costs: number[];
-  entertainment_costs: number[];
-  accommodation_costs: number[];
-  average_per_day_costs: number[];
+  local_transportation_costs?: number[];
+  entertainment_costs?: number[];
+  accommodation_costs?: number[];
+  average_per_day_costs?: number[];
 }
 
 export enum SearchParameter {

frontend/src/app/services/search.service.spec.ts

@@ -0,0 +1,12 @@
+import {TestBed} from '@angular/core/testing';
+
+import {SearchService} from './search.service';
+
+describe('SearchService', () => {
+  beforeEach(() => TestBed.configureTestingModule({}));
+
+  it('should be created', () => {
+    const service: SearchService = TestBed.get(SearchService);
+    expect(service).toBeTruthy();
+  });
+});

frontend/src/app/services/search.service.ts

@@ -0,0 +1,33 @@
+import {Injectable} from '@angular/core';
+import {Result} from '../interfaces/result.interface';
+import {DataService} from './data.service';
+
+export interface SearchInput {
+  from: string;
+  to: string;
+  singlePresetSelection: object;
+  multiPresetSelection: object;
+}
+
+@Injectable({
+  providedIn: 'root'
+})
+export class SearchService {
+
+  private searchInput: SearchInput;
+
+  constructor(private ds: DataService) {
+  }
+
+  public executeSearch(query: string): Promise<Result[]> {
+    return this.ds.searchRegions(query);
+  }
+
+  public saveSearchInput(input: SearchInput) {
+    this.searchInput = input;
+  }
+
+  public loadSearchInput(): SearchInput {
+    return this.searchInput;
+  }
+}