public async Task <LoginUserDto> IssueLoginTokenWithFacebookSignInAsync(FacebookOAuthRequestDto request)
{
// 1: verify the token
var accessTokenVerifyUrl = string.Format(_facebookOAuthConfigs.TokenVerifyUrl, request.Token, _facebookOAuthConfigs.Access_token);
var facebookOAuthAccessTokenResponse = await IdentityHelper.CheckFacebookOAuthAccessToken(accessTokenVerifyUrl);
if (facebookOAuthAccessTokenResponse.Data.User_id != request.UserId)
{
throw new BadRequestException("facebook login fail");
}
// 2. create user if user not exsist
var user = await _userRepository.GetUserByUserNameAsync(UserNameHelper.GenerateUserNameFromEmail(request.Email));
if (user == null)
{
user = await ApplicationUser.CreateAsync(_userManager, request.Email, null, request.FirstName, request.LastName, request.ImageUrl);
user.ManullActivate();
}
// 3. reset google login
await _userManager.RemoveLoginAsync(user, "Facebook", request.UserId);
await _userManager.AddLoginAsync(user, new UserLoginInfo("Facebook", request.UserId, request.Token));
// 4. if user data not match with Google
if (request.FirstName != user.FirstName || request.LastName != user.LastName || request.ImageUrl != user.AvatarUrl)
{
user.UpdateProfile(request.FirstName, request.LastName, request.ImageUrl);
}
// 5.issue a token to the user
return(await GenerateLoginUserDto(user));
}