app.controller('SignInController', [
  '$scope', '$timeout', 'Auth', '$location', 'localStorageService', '$rootScope', 'azp@oauth3.org'
, function ($scope, $timeout, Auth, $location, localStorageService, $rootScope, Oauth3) {

  var vm = this;

  vm.independentIssuer = false;
  vm.oauth3 = Oauth3.oauth3 = Oauth3.oauth3 || Oauth3.create(location);
  vm.timers = {};
  vm.defaultIssuer = 'provider.' + location.host.replace(/^cloud\./, '');

  vm.toggleAdvanced = function () {
    vm.independentIssuer = !vm.independentIssuer;
  }

  vm._setSubject = function (subject) {
    vm.currentSubject = vm.newSubject;
    subject = subject || vm.newSubject;
    var issuer = subject.replace(/.*@/, '');
    if (vm.independentIssuer) {
      return $timeout(function () { return; }, 0);
    }
    return Oauth3.discover(issuer, { client_uri: Oauth3.clientUri(location) }).then(function (deets) {
      return vm._setIssuer(issuer);
    }, function () {
      // ignore error
    });
  };
  vm.setSubject = function (subject) {
    $timeout.cancel(vm.timers.subject);
    vm.timers.subject = $timeout(function () {
      vm._setSubject(subject);
    }, 300);
  };
  vm._setIssuer = function (url) {
    vm.spinner = true;
    url = (url || vm.newIssuer).replace(/.*@/, '');
    if (!url) {
      url = vm.defaultIssuer;
    }

    return Oauth3.discover(url, { client_uri: Oauth3.clientUri(location) }).then(function (deets) {
      console.log('discover', url);
      console.log(deets);
      vm.currentIssuer = url;
      vm.issuerName = url;

      return vm.oauth3.setIdentityProvider(url).then(function (deets) {
        vm.oauth3.setResourceProvider(url);
        vm.spinner = false;
        // TODO add icon and name to directives
        console.log(deets);
      });
    }, function () {
      console.log('oauth3 timeout: No dice, no change');
      vm.spinner = false;
    });
  };
  vm.setIssuer = function (url) {
    $timeout.cancel(vm.timers.issuer);
    vm.timers.issuer = $timeout(function () {
      vm._setIssuer(url);
    }, 300);
  };
  vm.setAudience = function (url) {
    url = url || vm.audienceUrl;
    vm.audienceName = url;
    vm.oauth3.setResourceProvider(url);
  };

  vm.selectSession = function (session) {
    vm.oauth3.init({
      location: location
    , issuer: vm.currentIssuer
    , audience: vm.currentIssuer
    });
  };

  vm.oauth3.sessions = vm.oauth3.sessions || [];
  vm.instaauth = function () {
    return vm._setSubject().then(function () {
      return vm._setIssuer().then(function () {
        return vm.auth();
      });
    });
  };
  vm.auth = function () {
    var subject = vm.currentSubject;
    var issuer = vm.issuerName;
    vm.oauth3.authenticate({
      subject: subject
    , scope: [ 'domains@oauth3.org', 'domains', 'dns@oauth3.org', 'dns', 'www@daplie.com' ]
    }).then(function (session) {
      console.log('session', session);
      vm.hasSession = session;
      session.subject = subject;
      session.issuer = issuer;
      vm.oauth3.sessions.push(session);
    }, function (err) {
      console.log('auth error');
      console.log(err);
    });
  };

  vm.newIssuer = vm.defaultIssuer;
  vm.setIssuer(vm.defaultIssuer);

  vm.signIn = function () {
    vm.auth().then(function () {
      var userInfo = {
        email: vm.currentSubject,
        name: 'Johnny Cash'
      };
      Auth.setUser(userInfo);
    });
  };

}]);