using DigitalData.EmailProfiler.Application.Interfaces.Repositories;
using DigitalData.EmailProfiler.Domain.Exceptions;
using MediatR;

namespace DigitalData.EmailProfiler.Application.Features.EmailProfiles.Commands;

/// <summary>
/// Command to update an existing email profile.
/// </summary>
public record UpdateEmailProfileCommand : IRequest<Unit>
{
    public int Id { get; init; }
    public string ProfileName { get; init; } = string.Empty;
    public string? ValidationSql { get; init; }
    public int PollIntervalMinutes { get; init; }
    public bool IsActive { get; init; }
}

public class UpdateEmailProfileCommandHandler(IUnitOfWork unitOfWork) 
    : IRequestHandler<UpdateEmailProfileCommand, Unit>
{
    public async Task<Unit> Handle(UpdateEmailProfileCommand request, CancellationToken cancellationToken)
    {
        var profile = await unitOfWork.EmailProfiles.GetByIdAsync(request.Id, cancellationToken)
            ?? throw new DomainException($"Email profile with ID {request.Id} not found");

        profile.ProfileName = request.ProfileName;
        profile.ValidationSql = request.ValidationSql;
        profile.PollIntervalMinutes = request.PollIntervalMinutes;
        profile.IsActive = request.IsActive;
        profile.ChangedWhen = DateTime.Now;
        profile.ChangedWho = "System"; // TODO: Get from current user context

        await unitOfWork.EmailProfiles.UpdateAsync(profile, cancellationToken);
        await unitOfWork.SaveChangesAsync(cancellationToken);

        return Unit.Value;
    }
}