Admin: Add or Remove attends according to UserPick component

src/EventHub.Admin.Application.Contracts/Events/EventListFilterDto.cs

@@ -5,7 +5,8 @@ namespace EventHub.Admin.Events
 {
     public class EventListFilterDto : PagedAndSortedResultRequestDto
     {
-        public DateTime? StartTime { get; set; }
+        public DateTime? MinStartTime { get; set; }
+        public DateTime? MaxStartTime { get; set; }
 
         public string Title { get; set; }
 

src/EventHub.Admin.Application.Contracts/Events/Registrations/IEventRegistrationAppService.cs

@@ -10,7 +10,7 @@ namespace EventHub.Admin.Events.Registrations
     {
         Task<PagedResultDto<EventAttendeeDto>> GetAttendeesAsync(GetEventRegistrationListInput input);
 
-        Task RemoveAttendeeAsync(Guid eventId, Guid attendeeId);
+        Task UnRegisterAttendeeAsync(Guid eventId, Guid attendeeId);
 
         Task RegisterUsersAsync(Guid eventId, List<Guid> userIds);
 

src/EventHub.Admin.Application/Events/EventAppService.cs

@@ -3,17 +3,19 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Linq.Dynamic.Core;
 using System.Threading.Tasks;
+using EventHub.Admin.Permissions;
 using EventHub.Countries;
 using EventHub.Events;
 using EventHub.Events.Registrations;
 using EventHub.Organizations;
+using Microsoft.AspNetCore.Authorization;
 using Volo.Abp.Application.Dtos;
 using Volo.Abp.BlobStoring;
 using Volo.Abp.Domain.Repositories;
 
 namespace EventHub.Admin.Events
 {
-    //[Authorize(EventHubPermissions.Events.Default)]
+    [Authorize(EventHubPermissions.Events.Default)]
     public class EventAppService : EventHubAdminAppService, IEventAppService
     {
         private readonly IRepository<Event, Guid> _eventRepository;
@@ -70,7 +72,8 @@ namespace EventHub.Admin.Events
                         })
                 .WhereIf(!string.IsNullOrWhiteSpace(input.Title), x => x.Title.ToLower().Contains(input.Title.ToLower()))
                 .WhereIf(!string.IsNullOrWhiteSpace(input.OrganizationDisplayName), x => x.OrganizationDisplayName.ToLower().Contains(input.OrganizationDisplayName.ToLower()))
-                .WhereIf(input.StartTime.HasValue, x => x.StartTime > input.StartTime)
+                .WhereIf(input.MinStartTime.HasValue, x => x.StartTime >= input.MinStartTime)
+                .WhereIf(input.MaxStartTime.HasValue, x => x.StartTime <= input.MaxStartTime)
                 .WhereIf(input.MinAttendeeCount.HasValue, x => x.AttendeeCount >= input.MinAttendeeCount)
                 .WhereIf(input.MaxAttendeeCount.HasValue, x => x.AttendeeCount <= input.MaxAttendeeCount);
 
@@ -83,7 +86,7 @@ namespace EventHub.Admin.Events
             return new PagedResultDto<EventInListDto>(totalCount, events);
         }
 
-        //[Authorize(EventHubPermissions.Events.Update)]
+        [Authorize(EventHubPermissions.Events.Update)]
         public async Task UpdateAsync(Guid id, UpdateEventDto input)
         {
             var @event = await _eventRepository.GetAsync(id);

src/EventHub.Admin.Application/Events/Registrations/EventRegistrationAppService.cs

@@ -10,10 +10,11 @@ using Volo.Abp.Identity;
 using EventHub.Events.Registrations;
 using Microsoft.AspNetCore.Authorization;
 using EventHub.Events;
+using Volo.Abp;
 
 namespace EventHub.Admin.Events.Registrations
 {
-    //[Authorize(EventHubPermissions.Events.Registrations.Default)]
+    [Authorize(EventHubPermissions.Events.Registrations.Default)]
     public class EventRegistrationAppService : EventHubAdminAppService, IEventRegistrationAppService
     {
         private readonly IRepository<IdentityUser, Guid> _userRepository;
@@ -21,7 +22,6 @@ namespace EventHub.Admin.Events.Registrations
         private readonly IRepository<Event, Guid> _eventRepository;
         private readonly EventRegistrationManager _eventRegistrationManager;
 
-
         public EventRegistrationAppService(
             IRepository<IdentityUser, Guid> userRepository, 
             IRepository<EventRegistration, Guid> eventRegistrationRepository,
@@ -61,16 +61,13 @@ namespace EventHub.Admin.Events.Registrations
             );
         }
 
-        //[Authorize(EventHubPermissions.Events.Registrations.RemoveAttendee)]
+        [Authorize(EventHubPermissions.Events.Registrations.RemoveAttendee)]
-        public async Task RemoveAttendeeAsync(Guid eventId, Guid attendeeId)
+        public async Task UnRegisterAttendeeAsync(Guid eventId, Guid attendeeId)
         {
-            await _eventRegistrationManager.UnregisterAsync(
+            await _eventRegistrationRepository.DeleteAsync(x => x.EventId == eventId && x.UserId == attendeeId);
-                await _eventRepository.GetAsync(eventId),
-                await _userRepository.GetAsync(attendeeId)
-            );
         }
 
-        //[Authorize(EventHubPermissions.Events.Registrations.AddAttendee)]
+        [Authorize(EventHubPermissions.Events.Registrations.AddAttendee)]
         public async Task RegisterUsersAsync(Guid eventId, List<Guid> userIds)
         {
             if (userIds == null || !userIds.Any())
@@ -83,11 +80,15 @@ namespace EventHub.Admin.Events.Registrations
             var userQueryable = await _userRepository.GetQueryableAsync();
             var query = userQueryable.Where(user => userIds.Contains(user.Id));
 
+            await CheckEventCapacityAsync(@event);
+            
             var users = await AsyncExecuter.ToListAsync(query);
-
             foreach (var user in users)
             {
-                await _eventRegistrationManager.RegisterAsync(@event, user);
+                if (!await _eventRegistrationManager.IsRegisteredAsync(@event, user))
+                {
+                    await _eventRegistrationRepository.InsertAsync(await _eventRegistrationManager.CreateAsync(@event.Id, user.Id));
+                }
             }
         }
 
@@ -104,5 +105,16 @@ namespace EventHub.Admin.Events.Registrations
 
             return await AsyncExecuter.ToListAsync(query);
         }
+
+        private async Task CheckEventCapacityAsync(Event @event)
+        {
+            var registrationCount = await _eventRegistrationRepository.CountAsync(x => x.EventId == @event.Id);
+
+            if (@event.Capacity != null && registrationCount >= @event.Capacity)
+            {
+                throw new BusinessException(EventHubErrorCodes.CapacityOfEventFull)
+                    .WithData("EventTitle", @event.Title);
+            }
+        }
     }
 }

src/EventHub.Admin.HttpApi.Host/Controllers/Events/Registrations/EventRegistrationController.cs

@@ -43,9 +43,9 @@ namespace EventHub.Admin.Controllers.Events.Registrations
         }
 
         [HttpDelete]
-        public Task RemoveAttendeeAsync(Guid eventId, Guid attendeeId)
+        public Task UnRegisterAttendeeAsync(Guid eventId, Guid attendeeId)
         {
-            return _eventRegistrationAppService.RemoveAttendeeAsync(eventId, attendeeId);
+            return _eventRegistrationAppService.UnRegisterAttendeeAsync(eventId, attendeeId);
         }
     }
 }

src/EventHub.Admin.Web/Pages/AttendeeDetail.razor.cs

@@ -73,7 +73,7 @@ namespace EventHub.Admin.Web.Pages
         }
         private async Task RemoveAttendeeAsync(EventAttendeeDto attendee)
         {
-            await EventRegistrationAppService.RemoveAttendeeAsync(EventId, attendee.Id);
+            await EventRegistrationAppService.UnRegisterAttendeeAsync(EventId, attendee.Id);
             await GetAttendeesAsync();
         }
 
@@ -87,8 +87,13 @@ namespace EventHub.Admin.Web.Pages
                     .Select(x => x.Key)
                     .ToList();
 
-                await EventRegistrationAppService.RegisterUsersAsync(EventId, selectedUserIds);
+                var removedAttendees = SelectedUserIds.Except(selectedUserIds).ToList();
+                foreach (var attendeeId in removedAttendees)
+                {
+                    await EventRegistrationAppService.UnRegisterAttendeeAsync(EventId, attendeeId);
+                }
 
+                await EventRegistrationAppService.RegisterUsersAsync(EventId, selectedUserIds);
                 await UserPickerModalRef.CloseUserPickerModalAsync();
 
                 await GetAttendeesAsync();

src/EventHub.Admin.Web/Pages/EventManagement.razor

@@ -32,8 +32,14 @@
                 </Column>
                 <Column ColumnSize="ColumnSize.Is3">
                     <Field>
-                        <FieldLabel>@L["StartTime"]</FieldLabel>
+                        <FieldLabel>@L["MinStartTime"]</FieldLabel>
-                        <DateEdit TValue="DateTime?" Date="@Filter.StartTime" DateChanged="OnSelectedDateChanged"/>
+                        <DateEdit TValue="DateTime?" Date="@Filter.MinStartTime" DateChanged="OnSelectedDateChangedForMinStartTime" />
+                    </Field>
+                </Column>
+                <Column ColumnSize="ColumnSize.Is3">
+                    <Field>
+                        <FieldLabel>@L["MaxEndTime"]</FieldLabel>
+                        <DateEdit TValue="DateTime?" Date="@Filter.MaxStartTime" DateChanged="OnSelectedDateChangedForMaxStartTime" />
                     </Field>
                 </Column>
                 <Column ColumnSize="ColumnSize.Is3">

src/EventHub.Admin.Web/Pages/EventManagement.razor.cs

@@ -125,9 +125,15 @@ namespace EventHub.Admin.Web.Pages
             }
         }
 
-        private async Task OnSelectedDateChanged(DateTime? changedDate)
+        private async Task OnSelectedDateChangedForMinStartTime(DateTime? minStartTime)
         {
-            Filter.StartTime = changedDate;
+            Filter.MinStartTime = minStartTime;
+            await GetEventsAsync();
+        }
+
+        private async Task OnSelectedDateChangedForMaxStartTime(DateTime? maxStartTime)
+        {
+            Filter.MaxStartTime = maxStartTime;
             await GetEventsAsync();
         }
 

src/EventHub.Domain/Events/Registrations/EventRegistrationManager.cs

@@ -16,6 +16,11 @@ namespace EventHub.Events.Registrations
             _eventRegistrationRepository = eventRegistrationRepository;
         }
 
+        public async Task<EventRegistration> CreateAsync(Guid eventId, Guid userId)
+        {
+            return new EventRegistration(GuidGenerator.Create(), eventId, userId);
+        }
+
         public async Task RegisterAsync(
             Event @event,
             IdentityUser user)