fix: ignore null-island location

Closes #149

src/app/modules/data/types/place/place-detail-content.component.ts

@@ -12,7 +12,7 @@
  * You should have received a copy of the GNU General Public License along with
  * this program. If not, see <https://www.gnu.org/licenses/>.
  */
-import {Component, Input} from '@angular/core';
+import {Component, Input, OnInit} from '@angular/core';
 import {
   SCBuilding,
   SCFloor,
@@ -21,6 +21,7 @@ import {
   SCThings,
 } from '@openstapps/core';
 import {DataProvider} from '../../data.provider';
+import {hasValidLocation, isSCFloor} from './place-types';
 
 /**
  * TODO
@@ -31,12 +32,17 @@ import {DataProvider} from '../../data.provider';
   selector: 'stapps-place-detail-content',
   templateUrl: 'place-detail-content.html',
 })
-export class PlaceDetailContentComponent {
+export class PlaceDetailContentComponent implements OnInit {
   /**
    * TODO
    */
   @Input() item: SCBuilding | SCRoom | SCPointOfInterest | SCFloor;
 
+  /**
+   * Does it have valid location or not (for showing in in a map widget)
+   */
+  hasValidLocation = false;
+
   /**
    * TODO
    *
@@ -60,4 +66,9 @@ export class PlaceDetailContentComponent {
         (item.categories as string[]).includes('restaurant'))
     );
   }
+
+  ngOnInit() {
+    this.hasValidLocation =
+      !isSCFloor(this.item) && hasValidLocation(this.item);
+  }
 }

src/app/modules/data/types/place/place-detail-content.html

@@ -26,8 +26,8 @@
     </ion-card-content>
   </ion-card>
 </ng-container>
-<ng-container *ngIf="item.type !== 'floor'">
-  <ion-card *ngIf="item.geo" class="map-widget">
+<ng-container *ngIf="hasValidLocation">
+  <ion-card class="map-widget">
     <stapps-map-widget [place]="item" expandable="true"></stapps-map-widget>
   </ion-card>
 </ng-container>

src/app/modules/data/types/place/place-list-item.component.ts

@@ -13,22 +13,14 @@
  * this program. If not, see <https://www.gnu.org/licenses/>.
  */
 import {Component, Input} from '@angular/core';
-import {SCBuilding, SCFloor, SCPointOfInterest, SCRoom} from '@openstapps/core';
 import {PositionService} from '../../../map/position.service';
 import {Subscription, interval} from 'rxjs';
-
-type placeTypes = (SCBuilding | SCRoom | SCPointOfInterest | SCFloor) & {
-  distance?: number;
-};
-
-/**
- * Provide information if a place is a floor
- *
- * @param place A place to check
- */
-function isSCFloor(place: placeTypes): place is SCFloor {
-  return place.type === 'floor';
-}
+import {
+  hasValidLocation,
+  isSCFloor,
+  PlaceTypes,
+  PlaceTypesWithDistance,
+} from './place-types';
 
 /**
  * Shows a place as a list item
@@ -41,16 +33,16 @@ export class PlaceListItemComponent {
   /**
    * Item getter
    */
-  get item(): placeTypes {
+  get item(): PlaceTypesWithDistance {
     return this._item;
   }
 
   /**
    * An item to show (setter is used as there were issues assigning the distance to the right place in a list)
    */
-  @Input() set item(item: placeTypes) {
+  @Input() set item(item: PlaceTypes) {
     this._item = item;
-    if (!isSCFloor(item)) {
+    if (!isSCFloor(item) && hasValidLocation(item)) {
       this.distance = this.positionService.getDistance(item.geo.point);
       this.distanceSubscription = interval(10_000).subscribe(_ => {
         this.distance = this.positionService.getDistance(item.geo.point);
@@ -61,7 +53,7 @@ export class PlaceListItemComponent {
   /**
    * An item to show
    */
-  private _item: placeTypes;
+  private _item: PlaceTypesWithDistance;
 
   /**
    * Distance in meters

src/app/modules/data/types/place/place-types.ts

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2021 StApps
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+import {SCBuilding, SCFloor, SCPointOfInterest, SCRoom} from '@openstapps/core';
+
+/**
+ * Possible place types
+ */
+export type PlaceTypes = SCBuilding | SCRoom | SCPointOfInterest | SCFloor;
+
+/**
+ * Place types with their dynamic distance (from the position of the device)
+ */
+export type PlaceTypesWithDistance = PlaceTypes & {
+  distance?: number;
+};
+
+/**
+ * Detects "null island" places, which means places with point coordinates [0, 0]
+ *
+ * @param place A place to check
+ */
+export function hasValidLocation(place: Exclude<PlaceTypes, SCFloor>) {
+  return place.geo.point.coordinates.some(coordinate => coordinate !== 0);
+}
+
+/**
+ * Provide information if a place is a floor
+ *
+ * @param place A place to check
+ */
+export function isSCFloor(place: PlaceTypes): place is SCFloor {
+  return place.type === 'floor';
+}