updating users with pagination

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

@@ -1,11 +1,12 @@
 package ltd.hlaeja.controller
 
+import ltd.hlaeja.dto.Pagination
 import ltd.hlaeja.service.AccountRegistryService
 import org.springframework.stereotype.Controller
 import org.springframework.ui.Model
 import org.springframework.web.bind.annotation.GetMapping
+import org.springframework.web.bind.annotation.PathVariable
 import org.springframework.web.bind.annotation.RequestMapping
-import org.springframework.web.bind.annotation.RequestParam
 import reactor.core.publisher.Mono
 
 @Controller
@@ -13,18 +14,39 @@ 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
+    }
 
     @GetMapping
-    fun getAccounts(
-        @RequestParam(defaultValue = "1") page: Int,
-        @RequestParam(defaultValue = "2") size: Int,
+    fun getDefaultAccounts(
         model: Model,
-    ): Mono<String> = accountRegistryService.getAccounts(page, size)
+    ): Mono<String> = getAccounts(DEFAULT_PAGE, DEFAULT_SIZE, model)
+
+    @GetMapping("/page-{page}")
+    fun getAccountsPage(
+        @PathVariable page: Int,
+        model: Model,
+    ): Mono<String> = getAccounts(page, DEFAULT_SIZE, model)
+
+    @GetMapping("/page-{page}/show-{size}")
+    fun getAccountsPageSize(
+        @PathVariable page: Int,
+        @PathVariable size: Int,
+        model: Model,
+    ): Mono<String> = getAccounts(page, size, model)
+
+    private fun getAccounts(
+        page: Int,
+        size: Int,
+        model: Model,
+    ) = accountRegistryService.getAccounts(page, size)
         .collectList()
         .doOnNext { items ->
             model.addAttribute("items", items)
-            model.addAttribute("page", page)
-            model.addAttribute("size", size)
+            model.addAttribute("pagination", Pagination(page, size, items.size, DEFAULT_SIZE))
         }
         .then(Mono.just("account/users"))
 }
+