fix: Remade menu editor loading logic

src/app/admin-view/account-mgmt/account-mgmt.component.ts

@@ -43,7 +43,7 @@ export class AccountMgmtComponent implements AfterViewInit {
     }
     this.ac.refresh()
     this.ac.accs.subscribe(d => {
-      this.users.data = d ?? []
+      this.users.data = d
     })
   }
 

src/app/admin-view/menu-edit/menu-edit.component.html

@@ -1,20 +1,31 @@
 <div id="upper-bar">
-  <mat-form-field>
+  <mat-form-field subscriptSizing="dynamic">
     <mat-label>Wybierz tydzień</mat-label>
     <mat-date-range-input [rangePicker]="picker" [formGroup]="range">
-      <input matStartDate formControlName="start" (dateChange)="requestData()">
+      <input matStartDate formControlName="start">
-      <input matEndDate formControlName="end" (dateChange)="requestData()">
+      <input matEndDate formControlName="end">
     </mat-date-range-input>
     <mat-datepicker-toggle matIconSuffix [for]="picker"></mat-datepicker-toggle>
     <mat-date-range-picker #picker></mat-date-range-picker>
   </mat-form-field>
-  <button mat-icon-button (click)="requestData()"><mat-icon>refresh</mat-icon></button>
+  <button mat-icon-button (click)="ac.refresh()"><mat-icon>search</mat-icon></button>
   <button mat-icon-button (click)="addDate()"><mat-icon>add</mat-icon></button>
   <button mat-icon-button (click)="print()"><mat-icon>print</mat-icon></button>
 </div>
 @if (loading) {
   <mat-spinner></mat-spinner>
 }
+<div class="mainc">
+  @switch (ac.state()) {
+    @case (0) {
+      <p>Wybierz zakres dat powyżej i kliknij szukaj</p>
+    }
+    @case (1) {
+      <div class="spinner">
+        <mat-spinner/>
+      </div>
+    }
+    @case (2) {
       <table mat-table [dataSource]="dataSource">
         <div matColumnDef="day">
           <th mat-header-cell *matHeaderCellDef>Dzień</th>
@@ -91,6 +102,9 @@
         <tr mat-header-row *matHeaderRowDef="dcols"></tr>
         <tr mat-row *matRowDef="let row; columns: dcols"></tr>
       </table>
+    }
+  }
+</div>
 
 @if (options) {
   <datalist id="sn-fancy">

src/app/admin-view/menu-edit/menu-edit.component.scss

@@ -16,3 +16,19 @@ button[mat-icon-button] {
   color: gray;
   font-style: italic;
 }
+
+.mainc {
+  height: 100%;
+  position: relative;
+}
+
+.spinner {
+  position: absolute;
+  top: 0;
+  bottom: 0;
+  left: 0;
+  right: 0;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}

src/app/admin-view/menu-edit/menu-edit.component.ts

@@ -33,11 +33,18 @@ export class MenuEditComponent {
   public options: any
 
   constructor(
-    private ac: MenuEditService,
+    protected ac: MenuEditService,
     private dialog: MatDialog,
     private sb: MatSnackBar,
     readonly ls: LocalStorageService
-  ) {}
+  ) {
+    this.range.valueChanges.subscribe(v => {
+      ac.setDates(v.start!, v.end!)
+    })
+    ac.menuItems.subscribe(v => {
+      this.dataSource.data = v
+    })
+  }
 
   print() {
     this.ac
@@ -74,7 +81,7 @@ export class MenuEditComponent {
                 .subscribe(s => this.refreshIfGood(s))
               break
             case 'file':
-              this.requestData()
+              this.refresh()
               break
             default:
               break
@@ -83,29 +90,15 @@ export class MenuEditComponent {
       })
   }
 
-  requestData() {
+  refresh() {
-    this.loading = true
+    this.ac.refresh()
     this.ac.getOpts().subscribe(o => {
       this.options = o
     })
-    this.ac
-      .getMenu(this.range.value.start, this.range.value.end)
-      ?.subscribe(data => {
-        this.loading = false
-        this.dataSource.data = data.map(v => {
-          let newMenu: Menu = {
-            ...v,
-            day: DateTime.fromISO(v.day),
-          }
-          return newMenu
-        })
-      })
   }
 
   private refreshIfGood(s: Status) {
-    if (s.status.toString().match(/2\d\d/)) {
+    if (s.status.toString().match(/2\d\d/)) this.refresh()
-      this.requestData()
-    }
   }
 
   activateUpload() {
@@ -113,9 +106,7 @@ export class MenuEditComponent {
       .open(MenuUploadComponent)
       .afterClosed()
       .subscribe(data => {
-        if (data) {
+        if (data) this.refresh()
-          this.requestData()
-        }
       })
   }
 

src/app/admin-view/menu-edit/menu-edit.service.ts

@@ -1,7 +1,9 @@
 import { HttpClient } from '@angular/common/http';
-import { Injectable } from '@angular/core';
+import { Injectable, signal } from '@angular/core';
 import { DateTime } from 'luxon';
-import { Menu } from 'src/app/types/menu';
+import { BehaviorSubject, catchError, map, of } from 'rxjs';
+import { Menu, MenuAPI } from 'src/app/types/menu';
+import { STATE } from 'src/app/types/state';
 import { Status } from 'src/app/types/status';
 import { environment } from 'src/environments/environment';
 
@@ -10,19 +12,57 @@ import { environment } from 'src/environments/environment';
 })
 export class MenuEditService {
 
-  constructor(private http: HttpClient) { }
+  private _menuItems = new BehaviorSubject<Menu[]>([])
+  public readonly menuItems = this._menuItems.asObservable()
+  private _state = signal(STATE.NOT_LOADED);
+  public readonly state = this._state.asReadonly();
+  private _error = signal<string | undefined>(undefined);
+  public readonly error = this._error.asReadonly();
 
-  getMenu(start?: DateTime | null, end?: DateTime | null) {
+  private seDates: {
-    if (start && end) {
+    start: DateTime | null,
-      const body = { start: start.toString(), end: end.toString() }
+    end: DateTime | null
-      return this.http.get<(Omit<Menu, 'day'> & { day: string })[]>(
+  } = {
-        environment.apiEndpoint + '/admin/menu',
+      start: null,
-        { withCredentials: true, params: body }
+      end: null
-      )
     }
-    return
+
+  public setDates(start: DateTime | null, end: DateTime | null) {
+    this.seDates.start = start
+    this.seDates.end = end
   }
 
+  public refresh() {
+    this.getMenu()
+  }
+
+  private getMenu() {
+    if (!(this.seDates.start && this.seDates.end)) return
+    this._state.set(STATE.PENDING)
+    const body = { start: this.seDates.start.toString(), end: this.seDates.end.toString() }
+    this.http.get
+      <MenuAPI[]>
+      (environment.apiEndpoint + `/admin/menu`, { withCredentials: true, params: body })
+      .pipe(
+        catchError((err: Error) => {
+          this._state.set(STATE.ERROR)
+          this._error.set(err.message)
+          return of()
+        }),
+        map<MenuAPI[], Menu[]>(v =>
+          v.map(i => ({
+            ...i,
+            day: DateTime.fromISO(i.day)
+          })))
+      ).subscribe(v => {
+        this._error.set(undefined)
+        this._menuItems.next(v ?? [])
+        this._state.set(STATE.LOADED)
+      })
+  }
+
+  constructor(private http: HttpClient) { }
+
   getOpts() {
     return this.http.get<any>(environment.apiEndpoint + `/admin/menu/opts`, {
       withCredentials: true,

src/app/types/menu.ts

@@ -1,5 +1,7 @@
 import { DateTime } from 'luxon'
 
+export type MenuAPI = Omit<Menu, "day"> & {day: string}
+
 export interface Menu {
   _id: string
   day: DateTime