(vision) SCS/DDD

shared/src/commonMain/kotlin/at/mocode/dto/ArtikelDto.kt

@@ -20,11 +20,13 @@ data class ArtikelDto(
     val preis: BigDecimal,
     val einheit: String,
     val istVerbandsabgabe: Boolean,
+    @Since("1.1")
+    val kategorie: String? = null, // New field in version 1.1
     @Serializable(with = KotlinInstantSerializer::class)
     val createdAt: Instant,
     @Serializable(with = KotlinInstantSerializer::class)
     val updatedAt: Instant,
-    override val schemaVersion: String = "1.0",
+    override val schemaVersion: String = "1.1",
     override val dataVersion: Long? = null
 ) : VersionedDto
 
@@ -36,7 +38,9 @@ data class CreateArtikelDto(
     val preis: BigDecimal,
     val einheit: String,
     val istVerbandsabgabe: Boolean = false,
-    override val schemaVersion: String = "1.0",
+    @Since("1.1")
+    val kategorie: String? = null, // New field in version 1.1
+    override val schemaVersion: String = "1.1",
     override val dataVersion: Long? = null
 ) : VersionedDto
 
@@ -48,6 +52,8 @@ data class UpdateArtikelDto(
     val preis: BigDecimal,
     val einheit: String,
     val istVerbandsabgabe: Boolean = false,
-    override val schemaVersion: String = "1.0",
+    @Since("1.1")
+    val kategorie: String? = null, // New field in version 1.1
+    override val schemaVersion: String = "1.1",
     override val dataVersion: Long? = null
 ) : VersionedDto

shared/src/commonMain/kotlin/at/mocode/dto/base/VersionManager.kt

@@ -6,13 +6,13 @@ package at.mocode.dto.base
 object VersionManager {
 
     // Current API version
-    const val CURRENT_API_VERSION = "1.0"
+    const val CURRENT_API_VERSION = "1.1"
 
     // Supported API versions (newest first)
-    val SUPPORTED_VERSIONS = listOf("1.0")
+    val SUPPORTED_VERSIONS = listOf("1.1", "1.0")
 
     // Deprecated versions (still supported but discouraged)
-    val DEPRECATED_VERSIONS = emptyList<String>()
+    val DEPRECATED_VERSIONS = listOf("1.0")
 
     // Minimum client version required
     const val MINIMUM_CLIENT_VERSION = "1.0"

shared/src/commonMain/kotlin/at/mocode/dto/migrations/ArtikelDtoMigrator.kt

@@ -12,8 +12,9 @@ class ArtikelDtoMigrator : VersionMigrator<ArtikelDto> {
     override fun migrate(dto: ArtikelDto, fromVersion: String, toVersion: String): ArtikelDto {
         return when {
             fromVersion == "1.0" && toVersion == "1.0" -> dto
+            fromVersion == "1.0" && toVersion == "1.1" -> migrateFrom1_0To1_1(dto)
+            fromVersion == "1.1" && toVersion == "1.1" -> dto
             // Future migrations would be handled here
-            // fromVersion == "1.0" && toVersion == "1.1" -> migrateFrom1_0To1_1(dto)
             // fromVersion == "1.1" && toVersion == "1.2" -> migrateFrom1_1To1_2(dto)
             else -> throw IllegalArgumentException("Unsupported migration from $fromVersion to $toVersion")
         }
@@ -22,19 +23,22 @@ class ArtikelDtoMigrator : VersionMigrator<ArtikelDto> {
     override fun canMigrate(fromVersion: String, toVersion: String): Boolean {
         return when {
             fromVersion == "1.0" && toVersion == "1.0" -> true
+            fromVersion == "1.0" && toVersion == "1.1" -> true
+            fromVersion == "1.1" && toVersion == "1.1" -> true
             // Future migration paths would be defined here
-            // fromVersion == "1.0" && toVersion == "1.1" -> true
             // fromVersion == "1.1" && toVersion == "1.2" -> true
             else -> false
         }
     }
 
-    // Example of a future migration method
-    // private fun migrateFrom1_0To1_1(dto: ArtikelDto): ArtikelDto {
-    //     return dto.copy(
-    //         schemaVersion = "1.1",
-    //         // Add new fields with default values
-    //         // newField = "defaultValue"
-    //     )
-    // }
+    /**
+     * Migrate ArtikelDto from version 1.0 to 1.1
+     * Adds the new kategorie field with a default value
+     */
+    private fun migrateFrom1_0To1_1(dto: ArtikelDto): ArtikelDto {
+        return dto.copy(
+            schemaVersion = "1.1",
+            kategorie = "Allgemein" // Default category for existing articles
+        )
+    }
 }

shared/src/commonMain/kotlin/at/mocode/model/Artikel.kt

@@ -19,6 +19,7 @@ data class Artikel(
     var preis: BigDecimal,
     var einheit: String,
     var istVerbandsabgabe: Boolean = false,
+    var kategorie: String? = null, // New field for version 1.1
     @Serializable(with = KotlinInstantSerializer::class)
     val createdAt: Instant = Clock.System.now(),
     @Serializable(with = KotlinInstantSerializer::class)