[GEN-1863] Pagination channels + filters

- Add GetPaginatedAsync method to ChannelRepository with comprehensive filtering options (status, nodes, wallet, date range)
- Implement IChannelRepository interface with pagination support and detailed XML documentation
- Create ChannelManagement component with filtering UI including status, node, and date filters
- Add pagination controls and channel display with creation date, status, and capacity information

stack-info: PR: #480, branch: Jossec101/stack/13

Author: Jossec101

src/Data/Repositories/ChannelRepository.cs

@@ -218,6 +218,82 @@ public async Task<List<Channel>> GetAllManagedByUserNodes(string loggedUserId)
             return channels;
         }
 
+        public async Task<(List<Channel>, int)> GetPaginatedAsync(
+            string loggedUserId,
+            int pageNumber,
+            int pageSize,
+            int? statusFilter = null,
+            int? sourceNodeIdFilter = null,
+            int? destinationNodeIdFilter = null,
+            int? walletIdFilter = null,
+            DateTimeOffset? fromDate = null,
+            DateTimeOffset? toDate = null)
+        {
+            if (string.IsNullOrWhiteSpace(loggedUserId))
+                throw new ArgumentException("Value cannot be null or whitespace.", nameof(loggedUserId));
+
+            await using var applicationDbContext = await _dbContextFactory.CreateDbContextAsync();
+
+            var query = applicationDbContext.Channels
+                .Include(channel => channel.ChannelOperationRequests).ThenInclude(request => request.SourceNode).ThenInclude(x => x.Users)
+                .Include(channel => channel.ChannelOperationRequests).ThenInclude(request => request.DestNode).ThenInclude(x => x.Users)
+                .Include(channel => channel.ChannelOperationRequests).ThenInclude(request => request.Wallet)
+                .Include(channel => channel.ChannelOperationRequests).ThenInclude(request => request.ChannelOperationRequestPsbts)
+                .Include(x => x.SourceNode)
+                .Include(x => x.DestinationNode)
+                .Include(x => x.LiquidityRules)
+                .ThenInclude(x => x.Node)
+                .Include(x => x.LiquidityRules)
+                .ThenInclude(x => x.SwapWallet)
+                .Include(x => x.LiquidityRules)
+                .ThenInclude(x => x.ReverseSwapWallet)
+                .AsSplitQuery()
+                .Where(x => x.SourceNode.Users.Select(user => user.Id).Contains(loggedUserId) ||
+                            x.DestinationNode.Users.Select(user => user.Id).Contains(loggedUserId));
+
+            // Apply filters
+            if (statusFilter.HasValue)
+            {
+                var status = (Channel.ChannelStatus)statusFilter.Value;
+                query = query.Where(x => x.Status == status);
+            }
+
+            if (sourceNodeIdFilter.HasValue)
+            {
+                query = query.Where(x => x.SourceNodeId == sourceNodeIdFilter.Value);
+            }
+
+            if (destinationNodeIdFilter.HasValue)
+            {
+                query = query.Where(x => x.DestinationNodeId == destinationNodeIdFilter.Value);
+            }
+
+            if (walletIdFilter.HasValue)
+            {
+                query = query.Where(x => x.ChannelOperationRequests.Any(r => r.WalletId == walletIdFilter.Value));
+            }
+
+            if (fromDate.HasValue)
+            {
+                query = query.Where(x => x.CreationDatetime >= fromDate.Value);
+            }
+
+            if (toDate.HasValue)
+            {
+                query = query.Where(x => x.CreationDatetime <= toDate.Value);
+            }
+
+            var totalCount = await query.CountAsync();
+
+            var channels = await query
+                .OrderByDescending(x => x.CreationDatetime)
+                .Skip((pageNumber - 1) * pageSize)
+                .Take(pageSize)
+                .ToListAsync();
+
+            return (channels, totalCount);
+        }
+
 
         public async Task<(bool, string?)> MarkAsClosed(Channel channel)
         {

src/Data/Repositories/Interfaces/IChannelRepository.cs

@@ -54,4 +54,18 @@ public interface IChannelRepository
     /// <param name="loggedUserId"></param>
     /// <returns></returns>
     Task<List<Channel>> GetAllManagedByUserNodes(string loggedUserId);
+
+    /// <summary>
+    /// Retrieves paginated channels managed by user with filters
+    /// </summary>
+    Task<(List<Channel>, int)> GetPaginatedAsync(
+        string loggedUserId,
+        int pageNumber,
+        int pageSize,
+        int? statusFilter = null,
+        int? sourceNodeIdFilter = null,
+        int? destinationNodeIdFilter = null,
+        int? walletIdFilter = null,
+        DateTimeOffset? fromDate = null,
+        DateTimeOffset? toDate = null);
 }

src/Pages/ChannelRequests.razor

@@ -695,6 +695,12 @@
         {
             ToastService.ShowError("Bitcoin price in USD could not be retrieved.");
         }
+        _availableNodes = await NodeRepository.GetAll();
+        _availableUsers = await ApplicationUserRepository.GetAll();
+
+        _statusOptions.AddRange(Enum.GetValues<ChannelOperationRequestStatus>().Cast<ChannelOperationRequestStatus?>());
+        _requestTypeOptions.AddRange(Enum.GetValues<OperationRequestType>().Cast<OperationRequestType?>());
+
         await FetchRequests();
         await LoadData();
     }