BE: Delete imports on useNamespaces change

backend/app/src/test/kotlin/io/tolgee/api/v2/controllers/v2ImportController/V2ImportControllerAddFilesTest.kt

@@ -348,6 +348,21 @@ class V2ImportControllerAddFilesTest : ProjectAuthControllerTest("/v2/projects/"
     }
   }
 
+  @Test
+  fun `import gets deleted after namespaces feature is toggled`() {
+    val base = dbPopulator.createBase()
+
+    performImport(projectId = base.project.id, listOf("simple.json" to simpleJson))
+      .andIsOk
+
+    assertThat(importService.getAllByProject(base.project.id)).isNotEmpty()
+
+    base.project.useNamespaces = !base.project.useNamespaces
+    projectService.save(base.project)
+
+    assertThat(importService.getAllByProject(base.project.id)).isEmpty()
+  }
+
   private fun validateSavedJsonImportData(
     project: Project,
     userAccount: UserAccount,

backend/data/src/main/kotlin/io/tolgee/events/OnProjectSettingsUpdated.kt

@@ -0,0 +1,8 @@
+package io.tolgee.events
+
+import io.tolgee.dtos.cacheable.ProjectDto
+
+data class OnProjectSettingsUpdated(
+  val original: ProjectDto?,
+  val updated: ProjectDto,
+)

backend/data/src/main/kotlin/io/tolgee/service/dataImport/ImportService.kt

@@ -19,28 +19,22 @@ import io.tolgee.exceptions.NotFoundException
 import io.tolgee.model.Language
 import io.tolgee.model.Project
 import io.tolgee.model.UserAccount
-import io.tolgee.model.dataImport.Import
-import io.tolgee.model.dataImport.ImportFile
-import io.tolgee.model.dataImport.ImportKey
-import io.tolgee.model.dataImport.ImportLanguage
-import io.tolgee.model.dataImport.ImportTranslation
+import io.tolgee.model.dataImport.*
 import io.tolgee.model.dataImport.issues.ImportFileIssue
 import io.tolgee.model.dataImport.issues.ImportFileIssueParam
 import io.tolgee.model.views.ImportFileIssueView
 import io.tolgee.model.views.ImportLanguageView
 import io.tolgee.model.views.ImportTranslationView
-import io.tolgee.repository.dataImport.ImportFileRepository
-import io.tolgee.repository.dataImport.ImportKeyRepository
-import io.tolgee.repository.dataImport.ImportLanguageRepository
-import io.tolgee.repository.dataImport.ImportRepository
-import io.tolgee.repository.dataImport.ImportTranslationRepository
+import io.tolgee.repository.dataImport.*
 import io.tolgee.repository.dataImport.issues.ImportFileIssueParamRepository
 import io.tolgee.repository.dataImport.issues.ImportFileIssueRepository
 import io.tolgee.service.dataImport.status.ImportApplicationStatus
+import io.tolgee.events.OnProjectSettingsUpdated
 import io.tolgee.util.getSafeNamespace
 import jakarta.persistence.EntityManager
 import org.springframework.context.ApplicationContext
 import org.springframework.context.annotation.Lazy
+import org.springframework.context.event.EventListener
 import org.springframework.data.domain.Page
 import org.springframework.data.domain.Pageable
 import org.springframework.jdbc.core.JdbcTemplate
@@ -413,6 +407,17 @@ class ImportService(
     dataManager.resetCollisionsBetweenFiles(language, null)
   }
 
+  @EventListener
+  fun deleteExistingImportsOnUseNamespacesChange(event: OnProjectSettingsUpdated) {
+    if (event.original?.useNamespaces == event.updated.useNamespaces) {
+      return
+    }
+
+    getAllByProject(event.updated.id).forEach { import ->
+      deleteImport(import)
+    }
+  }
+
   fun findTranslation(translationId: Long): ImportTranslation? {
     return importTranslationRepository.findById(translationId).orElse(null)
   }

backend/data/src/main/kotlin/io/tolgee/service/project/ProjectService.kt

@@ -13,6 +13,7 @@ import io.tolgee.dtos.request.project.ProjectFilters
 import io.tolgee.dtos.request.validators.exceptions.ValidationException
 import io.tolgee.dtos.response.ProjectDTO
 import io.tolgee.dtos.response.ProjectDTO.Companion.fromEntityAndPermission
+import io.tolgee.events.OnProjectSettingsUpdated
 import io.tolgee.exceptions.BadRequestException
 import io.tolgee.exceptions.NotFoundException
 import io.tolgee.model.Language
@@ -46,6 +47,7 @@ import jakarta.persistence.EntityManager
 import org.springframework.beans.factory.annotation.Autowired
 import org.springframework.cache.annotation.CacheEvict
 import org.springframework.cache.annotation.Cacheable
+import org.springframework.context.ApplicationEventPublisher
 import org.springframework.context.annotation.Lazy
 import org.springframework.data.domain.Page
 import org.springframework.data.domain.PageImpl
@@ -69,6 +71,7 @@ class ProjectService(
   @Lazy
   private val batchJobService: BatchJobService,
   private val currentDateProvider: CurrentDateProvider,
+  private val eventPublisher: ApplicationEventPublisher,
 ) : Logging {
   @set:Autowired
   @set:Lazy
@@ -406,17 +409,19 @@ class ProjectService(
     return addPermittedLanguagesToProjects(withoutPermittedLanguages, userAccountId)
   }
 
-  @CacheEvict(cacheNames = [Caches.PROJECTS], allEntries = true)
-  fun saveAll(projects: Collection<Project>): MutableList<Project> = projectRepository.saveAll(projects)
-
   @CacheEvict(cacheNames = [Caches.PROJECTS], key = "#result.id")
   fun save(project: Project): Project {
     val isCreating = project.id == 0L
+    val originalProject = if (isCreating) null else ProjectDto.fromEntity(get(project.id))
+
     projectRepository.save(project)
     if (isCreating) {
       projectHolder.project = ProjectDto.fromEntity(project)
       activityHolder.activityRevision.projectId = projectHolder.project.id
     }
+
+    val updatedProject = ProjectDto.fromEntity(project)
+    eventPublisher.publishEvent(OnProjectSettingsUpdated(originalProject, updatedProject))
     return project
   }