using GozareshgirProgramManager.Application._Common.Interfaces;
using GozareshgirProgramManager.Application._Common.Models;
using GozareshgirProgramManager.Domain._Common;
using GozareshgirProgramManager.Domain.RoleUserAgg;
using GozareshgirProgramManager.Domain.UserAgg.Entities;
using GozareshgirProgramManager.Domain.UserAgg.Repositories;

namespace GozareshgirProgramManager.Application.Modules.Users.Commands.CreateUser;

public class CreateUserCommandHandler : IBaseCommandHandler<CreateUserCommand>
{
    private readonly IUserRepository _userRepository;
    private readonly IUnitOfWork _unitOfWork;

    public CreateUserCommandHandler(IUnitOfWork unitOfWork, IUserRepository userRepository)
    {
        _unitOfWork = unitOfWork;
        _userRepository = userRepository;
    }

    public async Task<OperationResult> Handle(CreateUserCommand request, CancellationToken cancellationToken)
    {

        #region CustomValidation
        if (_userRepository.Exists(x => x.FullName == request.FullName))
            return OperationResult.Failure("نام و خانوادگی تکراری است");
        if (_userRepository.Exists(x => x.UserName == request.UserName))
            return OperationResult.Failure("نام کاربری تکراری است");
        if (_userRepository.Exists(x=> !string.IsNullOrWhiteSpace(x.Mobile) && x.Mobile == request.Mobile))
            return OperationResult.ValidationError("این شماره همراه قبلا به فرد دیگری اختصاص داده شده است");
        if(request.AccountId == 0)
            return OperationResult.Failure("آی دی اکانت، از سمت گزارشگیر صفر است");
        #endregion

        var userRoles = request.Roles.Where(x => x > 0).Select(x => new RoleUser(x)).ToList() ;
        var create = new User(request.FullName, request.UserName, request.Password, request.Mobile,
            request.Email, request?.AccountId, userRoles);
    
        await _userRepository.CreateAsync(create);
        await _unitOfWork.SaveChangesAsync(cancellationToken);
        return OperationResult.Success();
    }
}