added basic create account

- add link in to creat in users.html
- AccountController
  - add getCreateAccount
  - add postCreateAccount
- add create.html
- add AccountForm to Account Request in Mapping.kt
- add AccountForm
- add addAccount to AccountRegistryService
- add accountRegistryCreate to WebClientCalls.kt
- add UsernameDuplicateException
- add AccountRegistryException
- add HlaejaException

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

@@ -1,10 +1,18 @@
 package ltd.hlaeja.util
 
-import org.springframework.security.core.Authentication as SpringAuthentication
-
+import ltd.hlaeja.form.AccountForm
+import ltd.hlaeja.library.accountRegistry.Account
 import ltd.hlaeja.library.accountRegistry.Authentication
+import org.springframework.security.core.Authentication as SpringAuthentication
 
 fun SpringAuthentication.toAuthenticationRequest(): Authentication.Request = Authentication.Request(
     principal as String,
     credentials as String,
 )
+
+fun AccountForm.toAccountRequest(): Account.Request = Account.Request(
+    username = username,
+    password = password,
+    enabled = enabled,
+    roles = listOf("ROLE_${role.uppercase()}"),
+)

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

@@ -1,8 +1,12 @@
 package ltd.hlaeja.util
 
+import ltd.hlaeja.exception.AccountRegistryException
+import ltd.hlaeja.exception.UsernameDuplicateException
 import ltd.hlaeja.library.accountRegistry.Account
 import ltd.hlaeja.library.accountRegistry.Authentication
 import ltd.hlaeja.property.AccountRegistryProperty
+import org.springframework.http.HttpStatus.BAD_REQUEST
+import org.springframework.http.HttpStatus.CONFLICT
 import org.springframework.http.HttpStatus.LOCKED
 import org.springframework.http.HttpStatus.NOT_FOUND
 import org.springframework.http.HttpStatus.UNAUTHORIZED
@@ -28,8 +32,19 @@ fun WebClient.accountRegistryAuthenticate(
 fun WebClient.accountRegistryAccounts(
     page: Int,
     size: Int,
-    property: AccountRegistryProperty
+    property: AccountRegistryProperty,
 ): Flux<Account.Response> = get()
     .uri("${property.url}/accounts?page=$page&size=$size".also(::logCall))
     .retrieve()
     .bodyToFlux(Account.Response::class.java)
+
+fun WebClient.accountRegistryCreate(
+    request: Account.Request,
+    property: AccountRegistryProperty,
+): Mono<Account.Response> = post()
+    .uri("${property.url}/account".also(::logCall))
+    .bodyValue(request)
+    .retrieve()
+    .onStatus(CONFLICT::equals) { throw UsernameDuplicateException() }
+    .onStatus(BAD_REQUEST::equals) { throw AccountRegistryException("Remote service returned 400") }
+    .bodyToMono(Account.Response::class.java)