Accounts can now be deleted

app/src/main/kotlin/controllers/UserController.kt

@@ -6,10 +6,12 @@ import be.simplenotes.app.extensions.redirect
 import be.simplenotes.app.views.UserView
 import be.simplenotes.domain.security.JwtPayload
 import be.simplenotes.domain.usecases.UserService
-import be.simplenotes.domain.usecases.login.*
-import be.simplenotes.domain.usecases.register.InvalidRegisterForm
-import be.simplenotes.domain.usecases.register.RegisterForm
-import be.simplenotes.domain.usecases.register.UserExists
+import be.simplenotes.domain.usecases.users.delete.DeleteError
+import be.simplenotes.domain.usecases.users.delete.DeleteForm
+import be.simplenotes.domain.usecases.users.login.*
+import be.simplenotes.domain.usecases.users.register.InvalidRegisterForm
+import be.simplenotes.domain.usecases.users.register.RegisterForm
+import be.simplenotes.domain.usecases.users.register.UserExists
 import be.simplenotes.shared.config.JwtConfig
 import org.http4k.core.Method.GET
 import org.http4k.core.Request
@@ -110,4 +112,38 @@ class UserController(
 
     fun logout(@Suppress("UNUSED_PARAMETER") request: Request) = Response.redirect("/")
         .invalidateCookie("Authorization")
+
+    private fun Request.deleteForm(jwtPayload: JwtPayload) =
+        DeleteForm(jwtPayload.username, form("password"), form("checked") != null)
+
+    fun settings(request: Request, jwtPayload: JwtPayload): Response {
+        if (request.method == GET)
+            return Response(OK).html(userView.settings(jwtPayload))
+
+        val deleteForm = request.deleteForm(jwtPayload)
+        val result = userService.delete(deleteForm)
+
+        return result.fold(
+            {
+                when (it) {
+                    DeleteError.Unregistered -> Response.redirect("/").invalidateCookie("Authorization")
+                    DeleteError.WrongPassword -> Response(OK).html(
+                        userView.settings(
+                            jwtPayload,
+                            error = "Wrong password"
+                        )
+                    )
+                    is DeleteError.InvalidForm -> Response(OK).html(
+                        userView.settings(
+                            jwtPayload,
+                            validationErrors = it.validationErrors
+                        )
+                    )
+                }
+            },
+            {
+                Response.redirect("/").invalidateCookie("Authorization")
+            }
+        )
+    }
 }