Broker implementation updated.

code/MessengerBroker/Handlers/Endpoint/UsersEndpointHandler.cs

@@ -0,0 +1,65 @@
+using MessengerApi.Factories;
+using MessengerBroker.Configuration.Model;
+using MessengerBroker.Factories;
+using MessengerBroker.Model.Http;
+using Microsoft.EntityFrameworkCore;
+
+namespace MessengerBroker.Handlers.Endpoint
+{
+    public class UsersEndpointHandler
+    {
+        private readonly BrokerConfiguration configuration;
+        private readonly BrokerDbContextFactory brokerDbContextFactory;
+        private readonly DbContextFactory messengerDbContextFactory;
+
+        public UsersEndpointHandler(
+            BrokerConfiguration configuration,
+            BrokerDbContextFactory brokerDbContextFactory,
+            DbContextFactory messengerDbContextFactory)
+        {
+            this.configuration = configuration;
+            this.brokerDbContextFactory = brokerDbContextFactory;
+            this.messengerDbContextFactory = messengerDbContextFactory;
+        }
+
+        public Task<Users.UsersResponse> GetUsers()
+        {
+            var foreignUserIds = (Guid[])null;
+
+            using(var broCtx = this.brokerDbContextFactory.CreateDbContext())
+            {
+                foreignUserIds = broCtx.Users.Select(x => x.Id).ToArray();
+            }
+
+            using (var apiCtx = this.messengerDbContextFactory.CreateDbContext())
+            {
+                var localUsers = apiCtx.Users
+                    .Where(x => !foreignUserIds.Any(f => f == x.Id))
+                    .ToArray();
+
+                var localRoutes = apiCtx.UserRoutes
+                    .Include(x => x.From)
+                    .Include(x => x.To)
+                    .Where(x => localUsers.Any(l => l.Id == x.From.Id) && localUsers.Any(l => l.Id == x.To.Id))
+                    .ToArray();
+
+                return Task.FromResult(new Users.UsersResponse
+                {
+                    Users = localUsers.Select(x => new Users.UsersResponse.User
+                    {
+                        Id = x.Id,
+                        ApiKey = x.ApiKey,
+                        IsEnabled = x.IsEnabled,
+                        Name = x.Name
+                    }).ToArray(),
+                    UserRoutes = localRoutes.Select(x => new Users.UsersResponse.UserRoute
+                    {
+                        Id = x.Id,
+                        FromId = x.From.Id,
+                        ToId = x.To.Id
+                    }).ToArray()
+                });
+            }
+        }
+    }
+}