using MediatR;
using Mws.Application.Auth;
using Mws.Application.Common;
using Mws.Application.Permissions;

namespace Mws.Application.Accounts;

public record ResetPasswordCommand(Guid ActorUserId, Guid Id, ResetPasswordRequest Request) : IRequest;

public class ResetPasswordHandler(IUnitOfWork uow, IPasswordHasher passwordHasher, IPermissionService permissions)
    : IRequestHandler<ResetPasswordCommand>
{
    private const string Screen = "accounts";

    public async Task Handle(ResetPasswordCommand command, CancellationToken ct)
    {
        await permissions.EnsureAsync(command.ActorUserId, Screen, PermissionAction.Edit, ct);

        if (string.IsNullOrWhiteSpace(command.Request.NewPassword))
        {
            throw new BadRequestException("New password is required");
        }

        var user = await uow.Users.GetByIdAsync(command.Id, ct)
            ?? throw new NotFoundException("Account not found");

        user.PasswordHash = passwordHasher.Hash(command.Request.NewPassword);
        user.UpdatedAt = DateTime.UtcNow;
        await uow.SaveChangesAsync(ct);
    }
}