extract defualt values to Pagination

src/main/kotlin/ltd/hlaeja/controller/AccountController.kt

@@ -5,12 +5,16 @@ import jakarta.validation.constraints.Min
 import java.util.UUID
 import ltd.hlaeja.controller.validation.CreateGroup
 import ltd.hlaeja.controller.validation.EditGroup
-import ltd.hlaeja.util.Pagination
 import ltd.hlaeja.exception.NoChangeException
 import ltd.hlaeja.exception.NotFoundException
 import ltd.hlaeja.exception.UsernameDuplicateException
 import ltd.hlaeja.form.AccountForm
 import ltd.hlaeja.service.AccountRegistryService
+import ltd.hlaeja.util.Pagination
+import ltd.hlaeja.util.Pagination.Companion.DEFAULT_PAGE
+import ltd.hlaeja.util.Pagination.Companion.DEFAULT_SIZE
+import ltd.hlaeja.util.Pagination.Companion.MAX
+import ltd.hlaeja.util.Pagination.Companion.MIN
 import ltd.hlaeja.util.toAccountForm
 import ltd.hlaeja.util.toAccountRequest
 import ltd.hlaeja.util.validationErrors
@@ -30,12 +34,6 @@ import reactor.core.publisher.Mono
 class AccountController(
     private val accountRegistryService: AccountRegistryService,
 ) {
-    companion object {
-        const val DEFAULT_PAGE: Int = 1
-        const val DEFAULT_SIZE: Int = 25
-        const val MIN: Long = 1
-        const val MAX: Long = 100
-    }
 
     @GetMapping("/edit-{account}")
     fun getEditAccount(

src/main/kotlin/ltd/hlaeja/controller/DeviceController.kt

@@ -2,8 +2,12 @@ package ltd.hlaeja.controller
 
 import jakarta.validation.constraints.Max
 import jakarta.validation.constraints.Min
-import ltd.hlaeja.util.Pagination
 import ltd.hlaeja.service.DeviceRegistryService
+import ltd.hlaeja.util.Pagination
+import ltd.hlaeja.util.Pagination.Companion.DEFAULT_PAGE
+import ltd.hlaeja.util.Pagination.Companion.DEFAULT_SIZE
+import ltd.hlaeja.util.Pagination.Companion.MAX
+import ltd.hlaeja.util.Pagination.Companion.MIN
 import org.springframework.stereotype.Controller
 import org.springframework.ui.Model
 import org.springframework.web.bind.annotation.GetMapping
@@ -14,12 +18,6 @@ import reactor.core.publisher.Mono
 class DeviceController(
     private val deviceRegistryService: DeviceRegistryService,
 ) {
-    companion object {
-        const val DEFAULT_PAGE: Int = 1
-        const val DEFAULT_SIZE: Int = 25
-        const val MIN: Long = 1
-        const val MAX: Long = 100
-    }
 
     @GetMapping(
         "/device",

src/main/kotlin/ltd/hlaeja/controller/TypeController.kt

@@ -3,12 +3,16 @@ package ltd.hlaeja.controller
 import jakarta.validation.constraints.Max
 import jakarta.validation.constraints.Min
 import java.util.UUID
-import ltd.hlaeja.util.Pagination
 import ltd.hlaeja.exception.NoChangeException
 import ltd.hlaeja.exception.NotFoundException
 import ltd.hlaeja.exception.TypeNameDuplicateException
 import ltd.hlaeja.form.TypeForm
 import ltd.hlaeja.service.DeviceRegistryService
+import ltd.hlaeja.util.Pagination
+import ltd.hlaeja.util.Pagination.Companion.DEFAULT_PAGE
+import ltd.hlaeja.util.Pagination.Companion.DEFAULT_SIZE
+import ltd.hlaeja.util.Pagination.Companion.MAX
+import ltd.hlaeja.util.Pagination.Companion.MIN
 import ltd.hlaeja.util.toTypeForm
 import ltd.hlaeja.util.toTypeRequest
 import ltd.hlaeja.util.validationErrors
@@ -26,12 +30,6 @@ import reactor.core.publisher.Mono
 class TypeController(
     private val deviceRegistryService: DeviceRegistryService,
 ) {
-    companion object {
-        const val DEFAULT_PAGE: Int = 1
-        const val DEFAULT_SIZE: Int = 25
-        const val MIN: Long = 1
-        const val MAX: Long = 100
-    }
 
     @GetMapping(
         "/type",

src/main/kotlin/ltd/hlaeja/util/Pagination.kt

@@ -7,12 +7,21 @@ data class Pagination(
     val items: Int,
     val defaultSize: Int,
 ) {
+
+    companion object {
+        const val DEFAULT_PAGE: Int = 1
+        const val DEFAULT_SIZE: Int = 25
+        const val MIN: Long = 1
+        const val MAX: Long = 100
+        const val STEEP: Int = 1
+    }
+
     val hasMore: Boolean = show == items
     val showSize: Boolean = show != defaultSize
-    val first: Boolean = page <= 1
+    val first: Boolean = page <= STEEP
-    val previous: Int = page - 1
+    val previous: Int = page - STEEP
-    val next: Int = page + 1
+    val next: Int = page + STEEP
-    val start: Int = previous * show + 1
+    val start: Int = previous * show + STEEP
     val end: Int = page * show
     val size: Int = previous * show + items
 }