feat(server): reverse geocoding endpoint (#11430)

* feat(server): reverse geocoding endpoint

* chore: rename error message

e2e/src/api/specs/map.e2e-spec.ts

@@ -159,4 +159,75 @@ describe('/map', () => {
       expect(body).toEqual(expect.objectContaining({ id: 'immich-map-dark' }));
     });
   });
+
+  describe('GET /map/reverse-geocode', () => {
+    it('should require authentication', async () => {
+      const { status, body } = await request(app).get('/map/reverse-geocode');
+      expect(status).toBe(401);
+      expect(body).toEqual(errorDto.unauthorized);
+    });
+
+    it('should throw an error if a lat is not provided', async () => {
+      const { status, body } = await request(app)
+        .get('/map/reverse-geocode?lon=123')
+        .set('Authorization', `Bearer ${admin.accessToken}`);
+      expect(status).toBe(400);
+      expect(body).toEqual(errorDto.badRequest(['lat must be a number between -90 and 90']));
+    });
+
+    it('should throw an error if a lat is not a number', async () => {
+      const { status, body } = await request(app)
+        .get('/map/reverse-geocode?lat=abc&lon=123.456')
+        .set('Authorization', `Bearer ${admin.accessToken}`);
+      expect(status).toBe(400);
+      expect(body).toEqual(errorDto.badRequest(['lat must be a number between -90 and 90']));
+    });
+
+    it('should throw an error if a lat is out of range', async () => {
+      const { status, body } = await request(app)
+        .get('/map/reverse-geocode?lat=91&lon=123.456')
+        .set('Authorization', `Bearer ${admin.accessToken}`);
+      expect(status).toBe(400);
+      expect(body).toEqual(errorDto.badRequest(['lat must be a number between -90 and 90']));
+    });
+
+    it('should throw an error if a lon is not provided', async () => {
+      const { status, body } = await request(app)
+        .get('/map/reverse-geocode?lat=75')
+        .set('Authorization', `Bearer ${admin.accessToken}`);
+      expect(status).toBe(400);
+      expect(body).toEqual(errorDto.badRequest(['lon must be a number between -180 and 180']));
+    });
+
+    const reverseGeocodeTestCases = [
+      {
+        name: 'Vaucluse',
+        lat: -33.858_977_058_663_13,
+        lon: 151.278_490_730_270_48,
+        results: [{ city: 'Vaucluse', state: 'New South Wales', country: 'Australia' }],
+      },
+      {
+        name: 'Ravenhall',
+        lat: -37.765_732_399_174_75,
+        lon: 144.752_453_164_883_3,
+        results: [{ city: 'Ravenhall', state: 'Victoria', country: 'Australia' }],
+      },
+      {
+        name: 'Scarborough',
+        lat: -31.894_346_156_789_997,
+        lon: 115.757_617_103_904_64,
+        results: [{ city: 'Scarborough', state: 'Western Australia', country: 'Australia' }],
+      },
+    ];
+
+    it.each(reverseGeocodeTestCases)(`should resolve to $name`, async ({ lat, lon, results }) => {
+      const { status, body } = await request(app)
+        .get(`/map/reverse-geocode?lat=${lat}&lon=${lon}`)
+        .set('Authorization', `Bearer ${admin.accessToken}`);
+      expect(status).toBe(200);
+      expect(Array.isArray(body)).toBe(true);
+      expect(body.length).toBe(results.length);
+      expect(body).toEqual(results);
+    });
+  });
 });

open-api/immich-openapi-specs.json

@@ -3109,6 +3109,60 @@
         ]
       }
     },
+    "/map/reverse-geocode": {
+      "get": {
+        "operationId": "reverseGeocode",
+        "parameters": [
+          {
+            "name": "lat",
+            "required": true,
+            "in": "query",
+            "schema": {
+              "format": "double",
+              "type": "number"
+            }
+          },
+          {
+            "name": "lon",
+            "required": true,
+            "in": "query",
+            "schema": {
+              "format": "double",
+              "type": "number"
+            }
+          }
+        ],
+        "responses": {
+          "200": {
+            "content": {
+              "application/json": {
+                "schema": {
+                  "items": {
+                    "$ref": "#/components/schemas/MapReverseGeocodeResponseDto"
+                  },
+                  "type": "array"
+                }
+              }
+            },
+            "description": ""
+          }
+        },
+        "security": [
+          {
+            "bearer": []
+          },
+          {
+            "cookie": []
+          },
+          {
+            "api_key": []
+          }
+        ],
+        "tags": [
+          "Map"
+        ]
+      }
+    },
     "/map/style.json": {
       "get": {
         "operationId": "getMapStyle",
@@ -9128,6 +9182,28 @@
         ],
         "type": "object"
       },
+      "MapReverseGeocodeResponseDto": {
+        "properties": {
+          "city": {
+            "nullable": true,
+            "type": "string"
+          },
+          "country": {
+            "nullable": true,
+            "type": "string"
+          },
+          "state": {
+            "nullable": true,
+            "type": "string"
+          }
+        },
+        "required": [
+          "city",
+          "country",
+          "state"
+        ],
+        "type": "object"
+      },
       "MapTheme": {
         "enum": [
           "light",

open-api/typescript-sdk/src/fetch-client.ts

@@ -554,6 +554,11 @@ export type MapMarkerResponseDto = {
     lon: number;
     state: string | null;
 };
+export type MapReverseGeocodeResponseDto = {
+    city: string | null;
+    country: string | null;
+    state: string | null;
+};
 export type OnThisDayDto = {
     year: number;
 };
@@ -1991,6 +1996,20 @@ export function getMapMarkers({ fileCreatedAfter, fileCreatedBefore, isArchived,
         ...opts
     }));
 }
+export function reverseGeocode({ lat, lon }: {
+    lat: number;
+    lon: number;
+}, opts?: Oazapfts.RequestOpts) {
+    return oazapfts.ok(oazapfts.fetchJson<{
+        status: 200;
+        data: MapReverseGeocodeResponseDto[];
+    }>(`/map/reverse-geocode${QS.query(QS.explode({
+        lat,
+        lon
+    }))}`, {
+        ...opts
+    }));
+}
 export function getMapStyle({ key, theme }: {
     key?: string;
     theme: MapTheme;

server/src/controllers/map.controller.ts

@@ -1,7 +1,12 @@
-import { Controller, Get, Query } from '@nestjs/common';
+import { Controller, Get, HttpCode, HttpStatus, Query } from '@nestjs/common';
 import { ApiTags } from '@nestjs/swagger';
 import { AuthDto } from 'src/dtos/auth.dto';
-import { MapMarkerDto, MapMarkerResponseDto } from 'src/dtos/search.dto';
+import {
+  MapMarkerDto,
+  MapMarkerResponseDto,
+  MapReverseGeocodeDto,
+  MapReverseGeocodeResponseDto,
+} from 'src/dtos/map.dto';
 import { MapThemeDto } from 'src/dtos/system-config.dto';
 import { Auth, Authenticated } from 'src/middleware/auth.guard';
 import { MapService } from 'src/services/map.service';
@@ -22,4 +27,11 @@ export class MapController {
   getMapStyle(@Query() dto: MapThemeDto) {
     return this.service.getMapStyle(dto.theme);
   }
+
+  @Authenticated()
+  @Get('reverse-geocode')
+  @HttpCode(HttpStatus.OK)
+  reverseGeocode(@Query() dto: MapReverseGeocodeDto): Promise<MapReverseGeocodeResponseDto[]> {
+    return this.service.reverseGeocode(dto);
+  }
 }

server/src/dtos/map.dto.ts

@@ -0,0 +1,67 @@
+import { ApiProperty } from '@nestjs/swagger';
+import { Type } from 'class-transformer';
+import { IsLatitude, IsLongitude } from 'class-validator';
+import { ValidateBoolean, ValidateDate } from 'src/validation';
+
+export class MapReverseGeocodeDto {
+  @ApiProperty({ format: 'double' })
+  @Type(() => Number)
+  @IsLatitude({ message: ({ property }) => `${property} must be a number between -90 and 90` })
+  lat!: number;
+
+  @ApiProperty({ format: 'double' })
+  @Type(() => Number)
+  @IsLongitude({ message: ({ property }) => `${property} must be a number between -180 and 180` })
+  lon!: number;
+}
+
+export class MapReverseGeocodeResponseDto {
+  @ApiProperty()
+  city!: string | null;
+
+  @ApiProperty()
+  state!: string | null;
+
+  @ApiProperty()
+  country!: string | null;
+}
+
+export class MapMarkerDto {
+  @ValidateBoolean({ optional: true })
+  isArchived?: boolean;
+
+  @ValidateBoolean({ optional: true })
+  isFavorite?: boolean;
+
+  @ValidateDate({ optional: true })
+  fileCreatedAfter?: Date;
+
+  @ValidateDate({ optional: true })
+  fileCreatedBefore?: Date;
+
+  @ValidateBoolean({ optional: true })
+  withPartners?: boolean;
+
+  @ValidateBoolean({ optional: true })
+  withSharedAlbums?: boolean;
+}
+
+export class MapMarkerResponseDto {
+  @ApiProperty()
+  id!: string;
+
+  @ApiProperty({ format: 'double' })
+  lat!: number;
+
+  @ApiProperty({ format: 'double' })
+  lon!: number;
+
+  @ApiProperty()
+  city!: string | null;
+
+  @ApiProperty()
+  state!: string | null;
+
+  @ApiProperty()
+  country!: string | null;
+}

server/src/dtos/search.dto.ts

@@ -289,26 +289,6 @@ export class SearchExploreResponseDto {
   items!: SearchExploreItem[];
 }
 
-export class MapMarkerDto {
-  @ValidateBoolean({ optional: true })
-  isArchived?: boolean;
-
-  @ValidateBoolean({ optional: true })
-  isFavorite?: boolean;
-
-  @ValidateDate({ optional: true })
-  fileCreatedAfter?: Date;
-
-  @ValidateDate({ optional: true })
-  fileCreatedBefore?: Date;
-
-  @ValidateBoolean({ optional: true })
-  withPartners?: boolean;
-
-  @ValidateBoolean({ optional: true })
-  withSharedAlbums?: boolean;
-}
-
 export class MemoryLaneDto {
   @IsInt()
   @Type(() => Number)
@@ -324,22 +304,3 @@ export class MemoryLaneDto {
   @ApiProperty({ type: 'integer' })
   month!: number;
 }
-export class MapMarkerResponseDto {
-  @ApiProperty()
-  id!: string;
-
-  @ApiProperty({ format: 'double' })
-  lat!: number;
-
-  @ApiProperty({ format: 'double' })
-  lon!: number;
-
-  @ApiProperty()
-  city!: string | null;
-
-  @ApiProperty()
-  state!: string | null;
-
-  @ApiProperty()
-  country!: string | null;
-}

server/src/services/map.service.ts

@@ -1,7 +1,7 @@
 import { Inject } from '@nestjs/common';
 import { SystemConfigCore } from 'src/cores/system-config.core';
 import { AuthDto } from 'src/dtos/auth.dto';
-import { MapMarkerDto, MapMarkerResponseDto } from 'src/dtos/search.dto';
+import { MapMarkerDto, MapMarkerResponseDto, MapReverseGeocodeDto } from 'src/dtos/map.dto';
 import { IAlbumRepository } from 'src/interfaces/album.interface';
 import { ILoggerRepository } from 'src/interfaces/logger.interface';
 import { IMapRepository } from 'src/interfaces/map.interface';
@@ -53,4 +53,11 @@ export class MapService {
 
     return JSON.parse(await this.systemMetadataRepository.readFile(`./resources/style-${theme}.json`));
   }
+
+  async reverseGeocode(dto: MapReverseGeocodeDto) {
+    const { lat: latitude, lon: longitude } = dto;
+    // eventually this should probably return an array of results
+    const result = await this.mapRepository.reverseGeocode({ latitude, longitude });
+    return result ? [result] : [];
+  }
 }