Merge branch 'export'

domain/src/main/kotlin/DomainModule.kt

@@ -6,6 +6,8 @@ import be.simplenotes.domain.security.PasswordHash
 import be.simplenotes.domain.security.SimpleJwt
 import be.simplenotes.domain.usecases.NoteService
 import be.simplenotes.domain.usecases.UserService
+import be.simplenotes.domain.usecases.export.ExportUseCase
+import be.simplenotes.domain.usecases.export.ExportUseCaseImpl
 import be.simplenotes.domain.usecases.markdown.MarkdownConverter
 import be.simplenotes.domain.usecases.markdown.MarkdownConverterImpl
 import be.simplenotes.domain.usecases.users.delete.DeleteUseCase
@@ -20,10 +22,11 @@ val domainModule = module {
     single<LoginUseCase> { LoginUseCaseImpl(get(), get(), get()) }
     single<RegisterUseCase> { RegisterUseCaseImpl(get(), get()) }
     single<DeleteUseCase> { DeleteUseCaseImpl(get(), get()) }
-    single { UserService(get(), get(), get()) }
+    single { UserService(get(), get(), get(), get()) }
     single<PasswordHash> { BcryptPasswordHash() }
     single { SimpleJwt(get()) }
     single { JwtPayloadExtractor(get()) }
     single { NoteService(get(), get()) }
     single<MarkdownConverter> { MarkdownConverterImpl() }
+    single<ExportUseCase> { ExportUseCaseImpl(get()) }
 }

domain/src/main/kotlin/model/Note.kt

@@ -1,5 +1,7 @@
 package be.simplenotes.domain.model
 
+import kotlinx.serialization.Contextual
+import kotlinx.serialization.Serializable
 import java.time.LocalDateTime
 import java.util.*
 
@@ -28,3 +30,13 @@ data class PersistedNote(
     val updatedAt: LocalDateTime,
     val uuid: UUID,
 )
+
+@Serializable
+data class ExportedNote(
+    val title: String,
+    val tags: List<String>,
+    val markdown: String,
+    val html: String,
+    @Contextual val updatedAt: LocalDateTime,
+    val trash: Boolean,
+)

domain/src/main/kotlin/usecases/UserService.kt

@@ -1,5 +1,6 @@
 package be.simplenotes.domain.usecases
 
+import be.simplenotes.domain.usecases.export.ExportUseCase
 import be.simplenotes.domain.usecases.users.delete.DeleteUseCase
 import be.simplenotes.domain.usecases.users.login.LoginUseCase
 import be.simplenotes.domain.usecases.users.register.RegisterUseCase
@@ -8,4 +9,8 @@ class UserService(
     loginUseCase: LoginUseCase,
     registerUseCase: RegisterUseCase,
     deleteUseCase: DeleteUseCase,
-) : LoginUseCase by loginUseCase, RegisterUseCase by registerUseCase, DeleteUseCase by deleteUseCase
+    exportUseCase: ExportUseCase,
+) : LoginUseCase by loginUseCase,
+    RegisterUseCase by registerUseCase,
+    DeleteUseCase by deleteUseCase,
+    ExportUseCase by exportUseCase

domain/src/main/kotlin/usecases/export/ExportUseCase.kt

@@ -0,0 +1,5 @@
+package be.simplenotes.domain.usecases.export
+
+interface ExportUseCase {
+    fun export(userId: Int): String
+}

domain/src/main/kotlin/usecases/export/ExportUseCaseImpl.kt

@@ -0,0 +1,43 @@
+package be.simplenotes.domain.usecases.export
+
+import be.simplenotes.domain.model.ExportedNote
+import be.simplenotes.domain.usecases.repositories.NoteRepository
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.builtins.ListSerializer
+import kotlinx.serialization.descriptors.PrimitiveKind
+import kotlinx.serialization.descriptors.PrimitiveSerialDescriptor
+import kotlinx.serialization.descriptors.SerialDescriptor
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.encoding.Encoder
+import kotlinx.serialization.json.Json
+import kotlinx.serialization.modules.SerializersModule
+import java.time.LocalDateTime
+
+internal class ExportUseCaseImpl(private val noteRepository: NoteRepository) : ExportUseCase {
+    override fun export(userId: Int): String {
+        val module = SerializersModule {
+            contextual(LocalDateTime::class, LocalDateTimeSerializer)
+        }
+
+        val json = Json {
+            prettyPrint = true
+            serializersModule = module
+        }
+
+        val notes = noteRepository.export(userId)
+        return json.encodeToString(ListSerializer(ExportedNote.serializer()), notes)
+    }
+}
+
+internal object LocalDateTimeSerializer : KSerializer<LocalDateTime> {
+    override val descriptor: SerialDescriptor
+        get() = PrimitiveSerialDescriptor("LocalDateTime", PrimitiveKind.STRING)
+
+    override fun serialize(encoder: Encoder, value: LocalDateTime) {
+        encoder.encodeString(value.toString())
+    }
+
+    override fun deserialize(decoder: Decoder): LocalDateTime {
+        TODO("Not implemented, isn't needed")
+    }
+}

domain/src/main/kotlin/usecases/repositories/NoteRepository.kt

@@ -1,5 +1,6 @@
 package be.simplenotes.domain.usecases.repositories
 
+import be.simplenotes.domain.model.ExportedNote
 import be.simplenotes.domain.model.Note
 import be.simplenotes.domain.model.PersistedNote
 import be.simplenotes.domain.model.PersistedNoteMetadata
@@ -25,4 +26,5 @@ interface NoteRepository {
     fun create(userId: Int, note: Note): PersistedNote
     fun find(userId: Int, uuid: UUID): PersistedNote?
     fun update(userId: Int, uuid: UUID, note: Note): PersistedNote?
+    fun export(userId: Int): List<ExportedNote>
 }