From 70852cfb951ecfea3ad2e9fcaa0bb192cb2f1712 Mon Sep 17 00:00:00 2001
From: Florent Gravin <florent.gravin@camptocamp.com>
Date: Tue, 19 Dec 2023 15:28:58 +0100
Subject: [PATCH] fix(wmts): get extent from capabilities instead of from the
 tilegrid

This fix the zoom to layer option on the map context while loading a WMTS layer
---
 .../src/lib/utils/map-utils.service.spec.ts   | 36 +++++++++++++++++--
 .../map/src/lib/utils/map-utils.service.ts    | 12 ++++++-
 2 files changed, 45 insertions(+), 3 deletions(-)

diff --git a/libs/feature/map/src/lib/utils/map-utils.service.spec.ts b/libs/feature/map/src/lib/utils/map-utils.service.spec.ts
index 9ac0a29341..68c5b09fc3 100644
--- a/libs/feature/map/src/lib/utils/map-utils.service.spec.ts
+++ b/libs/feature/map/src/lib/utils/map-utils.service.spec.ts
@@ -9,7 +9,6 @@ import Map from 'ol/Map'
 import ImageWMS from 'ol/source/ImageWMS'
 import TileWMS from 'ol/source/TileWMS'
 import XYZ from 'ol/source/XYZ'
-import { Options } from 'ol/source/WMTS'
 import { of } from 'rxjs'
 import { MapUtilsWMSService } from './map-utils-wms.service'
 import {
@@ -27,7 +26,7 @@ import {
 } from 'ol/interaction'
 import { DatasetServiceDistribution } from '@geonetwork-ui/common/domain/model/record'
 import MapBrowserEvent from 'ol/MapBrowserEvent'
-import { MapContextLayerWmtsModel } from '@geonetwork-ui/feature/map'
+import type { MapContextLayerWmtsModel } from '@geonetwork-ui/feature/map'
 
 jest.mock('ol/proj/proj4', () => {
   const fromEPSGCodeMock = jest.fn()
@@ -476,6 +475,39 @@ describe('MapUtilsService', () => {
           },
         })
       })
+      describe('layer extent', () => {
+        describe('when the WGS84BoundingBox is defined', () => {
+          it('set the WGS84BoundingBox', () => {
+            expect(wmtsLayer.extent).toEqual([
+              1.82682, 48.3847, 2.79738, 49.5142,
+            ])
+          })
+        })
+        describe('when the WGS84BoundingBox is not defined', () => {
+          beforeEach(async () => {
+            ;(window as any).fetch = jest.fn(() =>
+              Promise.resolve({
+                ok: true,
+                status: 200,
+                text: () =>
+                  Promise.resolve(
+                    SAMPLE_WMTS_CAPABILITIES.replace(
+                      /WGS84BoundingBox/g,
+                      'NoWGS84BoundingBox'
+                    )
+                  ),
+              })
+            )
+            wmtsLayer = await readFirst(
+              service.getWmtsLayerFromCapabilities(SAMPLE_WMTS_LINK)
+            )
+          })
+
+          it('set the WGS84BoundingBox', () => {
+            expect(wmtsLayer.extent).toBeUndefined()
+          })
+        })
+      })
     })
     describe('http error', () => {
       let error
diff --git a/libs/feature/map/src/lib/utils/map-utils.service.ts b/libs/feature/map/src/lib/utils/map-utils.service.ts
index daf9304b5a..92ab59ac87 100644
--- a/libs/feature/map/src/lib/utils/map-utils.service.ts
+++ b/libs/feature/map/src/lib/utils/map-utils.service.ts
@@ -154,7 +154,11 @@ export class MapUtilsService {
     } else if (layer && layer.type === 'wms') {
       geographicExtent = this.wmsUtils.getLayerLonLatBBox(layer)
     } else if (layer && layer.type === 'wmts') {
-      return of(layer.options.tileGrid.getExtent())
+      if (layer.extent) {
+        geographicExtent = of(layer.extent)
+      } else {
+        return of(layer.options.tileGrid.getExtent())
+      }
     } else {
       return of(null)
     }
@@ -191,9 +195,15 @@ ${await response.text()}`)
               layer: link.name,
               matrixSet: 'EPSG:3857',
             })
+            const layerCap = result?.Contents?.Layer.find(
+              (layer) => layer.Identifier === link.name
+            )
             return {
               options,
               type: MapContextLayerTypeEnum.WMTS as 'wmts',
+              ...(layerCap?.WGS84BoundingBox
+                ? { extent: layerCap.WGS84BoundingBox }
+                : {}),
             }
           } catch (e: any) {
             throw new Error(`WMTS GetCapabilities parsing failed: