package transport

import (
	"context"
	"google.golang.org/grpc/codes"
	"google.golang.org/grpc/status"
	"google.golang.org/protobuf/types/known/emptypb"
	"ms-auth/internal/lib"
	"ms-auth/internal/models"
	userv1 "ms-auth/pkg/go/gen/user/v1"
)

func (s *AuthServer) CreateUser(ctx context.Context, req *userv1.CreateUserRequest) (*userv1.CreateUserResponse, error) {
	user := req.GetUser()
	if user == nil {
		return nil, status.Errorf(codes.Unknown, "") // FIXME
	}
	id, err := s.userService.CreateUser(
		ctx,
		&models.User{
			Username:  lib.AsStringP(user.GetUsername()),
			Password:  lib.AsStringP(user.GetPassword()),
			Email:     nil,
			ExpiresAt: AsTimeP(user.ExpiresAt),
			Role:      AsMRoleP(user.GetRole()),
		},
	)
	if err != nil {
		return nil, status.Errorf(codes.Unknown, err.Error()) // FIXME
	}

	return &userv1.CreateUserResponse{
		Id: id,
	}, nil
}

func (s *AuthServer) ReadUser(ctx context.Context, req *userv1.ReadUserRequest) (*userv1.ReadUserResponse, error) {
	user, err := s.userService.ReadUser(
		ctx,
		req.GetId(),
	)
	if err != nil {
		return nil, status.Errorf(codes.Unknown, err.Error()) // FIXME
	}

	return &userv1.ReadUserResponse{
		User: &userv1.ReadUserResponse_User{
			Id:        *user.Id,
			Username:  *user.Username,
			ExpiresAt: AsTimestampP(user.ExpiresAt),
			CreatedAt: AsTimestampP(user.CreatedAt),
			Role:      *AsRoleP(user.Role),
		},
	}, nil
}

func (s *AuthServer) UpdateUser(ctx context.Context, req *userv1.UpdateUserRequest) (*emptypb.Empty, error) {
	user := req.GetUser()
	if user == nil {
		return nil, status.Errorf(codes.Unknown, "") // FIXME
	}
	err := s.userService.UpdateUser(
		ctx,
		&models.User{
			Id:        lib.AsInt32P(user.GetId()),
			Username:  lib.AsStringP(user.GetUsername()),
			Password:  lib.AsStringP(user.GetPassword()),
			Email:     nil,
			ExpiresAt: AsTimeP(user.ExpiresAt),
			Role:      AsMRoleP(user.GetRole()),
		},
	)
	if err != nil {
		return nil, status.Errorf(codes.Unknown, err.Error()) // FIXME
	}
	return &emptypb.Empty{}, nil
}

func (s *AuthServer) DeleteUser(ctx context.Context, req *userv1.DeleteUserRequest) (*emptypb.Empty, error) {
	err := s.userService.DeleteUser(
		ctx,
		req.GetId(),
	)
	if err != nil {
		return nil, status.Errorf(codes.Unknown, err.Error()) // FIXME
	}
	return &emptypb.Empty{}, nil
}