add application number

internal/services/story_service/models/application_dto.go

@@ -1,11 +1,34 @@
 package models
 
+import "fmt"
+
 type Application struct {
-	Name string `json:"name"`
+	Name   string `json:"name"`
+	Number string `json:"-"`
 }
 
-func NewApplication(name string) *Application {
-	return &Application{
+func NewApplication(
+	name string,
+	opts ...ApplicationOpt,
+) *Application {
+	application := &Application{
 		Name: name,
 	}
+	for _, opt := range opts {
+		opt(application)
+	}
+	return application
+}
+
+type ApplicationOpt func(application *Application) error
+
+func WithApplicationNumber(number int) ApplicationOpt {
+	return func(application *Application) error {
+		application.SetNumber(number)
+		return nil
+	}
+}
+
+func (a *Application) SetNumber(number int) {
+	a.Number = fmt.Sprintf("%d", number)
 }

internal/services/story_service/service.go

@@ -95,8 +95,21 @@ func (s *StoryService) GetPlaces(codes []string) []*models.Place {
 	places := make([]*models.Place, 0, 100)
 	mOpen := map[string]any{}
 	mDeleted := map[string]any{}
+	applicationNumber := 1
+	applicationsMap := make(map[string]interface{}, 10)
 	for i, code := range codes {
 		place := s.GetPlace(code)
+		for i, application := range place.Applications {
+			if _, ok := applicationsMap[application.Name]; ok {
+				place.Applications = append(place.Applications[:i], place.Applications[i+1:]...)
+				if len(place.Applications) == 0 {
+					place.Applications = nil
+				}
+			}
+			applicationsMap[application.Name] = struct{}{}
+			application.SetNumber(applicationNumber)
+			applicationNumber++
+		}
 		if _, ok := mOpen[place.Code]; place.Hidden && !ok {
 			place = models.NewNotFoundPlace(place.Code)
 		}

internal/services/story_service/service_test.go

@@ -456,6 +456,40 @@ func TestStoryService_GetPlaces(t *testing.T) {
 				models.NewNotFoundPlace("Ы-2"),
 			},
 		},
+		{
+			name: "Улики не повторяются",
+			story: &models.Story{
+				Places: []*models.Place{
+					models.NewPlace(
+						"Ы",
+						"Название",
+						"Текст",
+						models.WithPlaceApplication(
+							models.NewApplication("Название"),
+						),
+					),
+				},
+			},
+			codes: []string{"Ы", "Ы"},
+			want: []*models.Place{
+				models.NewPlace(
+					"Ы",
+					"Название",
+					"Текст",
+					models.WithPlaceApplication(
+						models.NewApplication(
+							"Название",
+							models.WithApplicationNumber(1),
+						),
+					),
+				),
+				models.NewPlace(
+					"Ы",
+					"Название",
+					"Текст",
+				),
+			},
+		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {