var cognitoIdentity = new AWS.CognitoIdentity();

var lambda = new AWS.Lambda();

function login() {
  var cognitoIdentityServiceProvider = new AWS.CognitoIdentityServiceProvider();
  
  var email = document.getElementById('inputEmail');
  var password = document.getElementById('inputPassword');

  var params = {
    AuthFlow: "USER_PASSWORD_AUTH",
    ClientId: cognitoUserPoolClientId,
    AuthParameters: {
      USERNAME: email.value,
      PASSWORD: password.value
    }
  };

  cognitoIdentityServiceProvider.initiateAuth(params, function (err, data) {
    if(err !== null)
    {
      // Something has gone wrong.
      // TODO: Add some error logging, reporting etc.
      console.log(err);
      return;
    }
    
    if(data.hasOwnProperty('ChallengeName'))
    {
      // There is a challenge to respond to.
      console.log(data);
    }
    else
    {
      // There is no challenge and we're logged in.
      console.log(data);

      var id;

      cognitoIdentity.getId({IdentityPoolId: cognitoIdentityPoolId, Logins: {[cognitoIDP]: data.AuthenticationResult.IdToken}},function(err,data){
        console.log(err);
        console.log(data);
        id = data.IdentityId;
      });

      cognitoIdentity.getCredentialsForIdentity({IdentityId: id}, function(err,data){console.log(err);console.log(data);});
    }

  });

}

var form = document.getElementById('login-form');
form.addEventListener('submit', function (evt) {
  evt.preventDefault();
  login();
});