using Microsoft.AspNetCore.SignalR;
using SkillManagementBLL.Common;

namespace SkillManagementSL.EndPoints.Hubs;

// Concrete implementation of the BLL-defined ISkillHubNotifier, wrapping
// IHubContext<SkillHub, ISkillHubClient> — this is the one place in this module allowed to know
// about SignalR, per CLAUDE.md's "BLL must never reference ASP.NET types" rule. Registered as a
// Singleton in SkillManagementModule.cs (IHubContext itself is singleton and thread-safe).
// Mirrors WiSL.EndPoints.Hubs.WiHubNotifier exactly.
public class SkillHubNotifier(IHubContext<SkillHub, ISkillHubClient> hubContext, ILogger<SkillHubNotifier> logger) : ISkillHubNotifier
{
    public async Task NotifyProfileChangedAsync(int employeeId, int skillId, int clientId, CancellationToken ct = default)
    {
        try
        {
            await hubContext.Clients.Group(SkillHub.EmployeeGroup(employeeId))
                .ReceiveProfileChanged(employeeId, skillId);
            await hubContext.Clients.Group(SkillHub.MatrixGroup(clientId))
                .ReceiveMatrixChanged(clientId);
        }
        catch (Exception ex)
        {
            logger.LogWarning(ex, "SkillHubNotifier: failed to push profile change for EmployeeId {EmployeeId}", employeeId);
        }
    }
}