Replaced hardcoded mapping with reflection (yay reflection)

src/main/kotlin/de/grimsi/gameyfin/shared/token/TokenService.kt

@@ -17,7 +17,7 @@ abstract class TokenService<T : TokenType>(
         )
 
         tokenRepository.findByUserAndType(user, type)?.let {
-            log.warn { "Deleting existing '${it.type}' token for user '${user.username}'" }
+            log.warn { "Deleting existing ${it.type.key} token for user '${user.username}'" }
             delete(it)
         }
 

src/main/kotlin/de/grimsi/gameyfin/shared/token/TokenType.kt

@@ -1,20 +1,13 @@
 package de.grimsi.gameyfin.shared.token
 
-import java.io.Serializable
 import kotlin.time.Duration
 import kotlin.time.Duration.Companion.minutes
 
 sealed class TokenType(
     val key: String,
     val expiration: Duration
-) : Serializable {
+) {
     data object PasswordReset : TokenType("password-reset", 15.minutes)
     data object EmailVerification : TokenType("email-verification", Duration.INFINITE)
     data object Invitation : TokenType("invitation", Duration.INFINITE)
-
-    fun readResolve(): Any = when (this) {
-        PasswordReset -> PasswordReset
-        EmailVerification -> EmailVerification
-        Invitation -> Invitation
-    }
 }

src/main/kotlin/de/grimsi/gameyfin/shared/token/TokenTypeUserType.kt

@@ -6,6 +6,7 @@ import java.io.Serializable
 import java.sql.PreparedStatement
 import java.sql.ResultSet
 import java.sql.Types
+import kotlin.reflect.full.createInstance
 
 class TokenTypeUserType : UserType<TokenType> {
 
@@ -24,12 +25,12 @@ class TokenTypeUserType : UserType<TokenType> {
         owner: Any?
     ): TokenType? {
         val key = rs.getString(position) ?: return null
-        return when (key) {
-            TokenType.PasswordReset.key -> TokenType.PasswordReset
-            TokenType.EmailVerification.key -> TokenType.EmailVerification
-            TokenType.Invitation.key -> TokenType.Invitation
-            else -> throw IllegalArgumentException("Unknown TokenType key: $key")
-        }
+        val tokenTypeClass = TokenType::class
+
+        return tokenTypeClass.sealedSubclasses
+            .map { it.objectInstance ?: it.createInstance() }
+            .firstOrNull { it.key == key }
+            ?: throw IllegalArgumentException("Unknown TokenType: $key")
     }
 
     override fun nullSafeSet(