define(function(require) {
    'use strict';

    var expect = chai.expect,
        angular = require('angular'),
        mocks = require('angularMocks'),
        PrivateKeyUploadCtrl = require('js/controller/privatekey-upload'),
        appController = require('js/app-controller'),
        KeychainDAO = require('js/dao/keychain-dao'),
        PGP = require('js/crypto/pgp');

    describe('Private Key Upload Controller unit test', function() {
        var scope, location, ctrl,
            origEmailDao, emailDaoMock,
            origKeychain, keychainMock,
            pgpStub,
            emailAddress = 'fred@foo.com';

        beforeEach(function(done) {
            // remember original module to restore later, then replace it
            origEmailDao = appController._emailDao;
            appController._emailDao = emailDaoMock = {
                _account: {
                    emailAddress: emailAddress
                }
            };
            origKeychain = appController._keychain;
            appController._keychain = keychainMock = sinon.createStubInstance(KeychainDAO);
            keychainMock._pgp = pgpStub = sinon.createStubInstance(PGP);

            angular.module('login-privatekey-download-test', []);
            mocks.module('login-privatekey-download-test');
            mocks.inject(function($controller, $rootScope) {
                scope = $rootScope.$new();
                scope.state = {};
                ctrl = $controller(PrivateKeyUploadCtrl, {
                    $location: location,
                    $scope: scope
                });
                done();
            });
        });

        afterEach(function() {
            // restore the app controller module
            appController._keychain = origKeychain;
            appController._emailDao = origEmailDao;
        });

        describe('checkServerForKey', function() {
            var keyParams = {
                userId: emailAddress,
                _id: 'keyId',
            };

            it('should fail', function(done) {
                pgpStub.getKeyParams.returns(keyParams);
                keychainMock.hasPrivateKey.yields(42);

                scope.onError = function(err) {
                    expect(err).to.exist;
                    expect(keychainMock.hasPrivateKey.calledOnce).to.be.true;
                    done();
                };

                scope.checkServerForKey();
            });

            it('should return true', function(done) {
                pgpStub.getKeyParams.returns(keyParams);
                keychainMock.hasPrivateKey.withArgs({
                    userId: keyParams.userId,
                    keyId: keyParams._id
                }).yields(null, true);

                scope.checkServerForKey(function(privateKeySynced) {
                    expect(privateKeySynced).to.be.true;
                    done();
                });
            });

            it('should return undefined', function(done) {
                pgpStub.getKeyParams.returns(keyParams);
                keychainMock.hasPrivateKey.withArgs({
                    userId: keyParams.userId,
                    keyId: keyParams._id
                }).yields(null, false);

                scope.checkServerForKey(function(privateKeySynced) {
                    expect(privateKeySynced).to.be.undefined;
                    done();
                });
            });
        });

        describe('handlePaste', function() {
            it('should work', function() {
                scope.handlePaste({
                    clipboardData: {
                        getData: function(val) {
                            expect(val).to.equal('text/plain');
                            return '1qaz-2wsx-3edc-4rfv-5tgb-6yhn';
                        }
                    }
                });

                expect(scope.code0).to.equal('1qaz');
                expect(scope.code1).to.equal('2wsx');
                expect(scope.code2).to.equal('3edc');
                expect(scope.code3).to.equal('4rfv');
                expect(scope.code4).to.equal('5tgb');
                expect(scope.code5).to.equal('6yhn');
            });
        });

        describe('displayUploadUi', function() {
            it('should work', function() {
                var generateCodeStub = sinon.stub(scope, 'generateCode');
                generateCodeStub.returns('asdf');

                // add some artifacts from a previous key input
                scope.code0 = scope.code1 = scope.code2 = scope.code3 = scope.code4 = scope.code5 = 'asdasd';

                scope.displayUploadUi();
                expect(scope.step).to.equal(1);
                expect(scope.code).to.equal('asdf');

                // artifacts should be cleared
                expect(scope.code0).to.be.empty;
                expect(scope.code1).to.be.empty;
                expect(scope.code2).to.be.empty;
                expect(scope.code3).to.be.empty;
                expect(scope.code4).to.be.empty;
                expect(scope.code5).to.be.empty;

                generateCodeStub.restore();
            });
        });

        describe('generateCode', function() {
            it('should work', function() {
                expect(scope.generateCode().length).to.equal(24);
            });
        });

        describe('verifyCode', function() {
            it('should fail for wrong code', function() {
                scope.code0 = 'b';
                scope.code1 = 'b';
                scope.code2 = 'b';
                scope.code3 = 'b';
                scope.code4 = 'b';
                scope.code5 = 'b';
                scope.code = 'aaaaaa';

                scope.onError = function() {};
                expect(scope.verifyCode()).to.be.false;
            });

            it('should work', function() {
                scope.code0 = 'a';
                scope.code1 = 'a';
                scope.code2 = 'a';
                scope.code3 = 'a';
                scope.code4 = 'a';
                scope.code5 = 'a';
                scope.code = 'aaaaaa';

                scope.onError = function() {};
                expect(scope.verifyCode()).to.be.false;
            });
        });

        describe('setDeviceName', function() {
            it('should work', function(done) {
                keychainMock.setDeviceName.yields();
                scope.setDeviceName(done);
            });
        });

        describe('encryptAndUploadKey', function() {
            it('should fail due to keychain.registerDevice', function(done) {
                keychainMock.registerDevice.yields(42);

                scope.onError = function(err) {
                    expect(err).to.exist;
                    expect(keychainMock.registerDevice.calledOnce).to.be.true;
                    done();
                };

                scope.encryptAndUploadKey();
            });

            it('should work', function(done) {
                keychainMock.registerDevice.yields();
                keychainMock.uploadPrivateKey.yields();

                scope.encryptAndUploadKey(function(err) {
                    expect(err).to.not.exist;
                    expect(keychainMock.registerDevice.calledOnce).to.be.true;
                    expect(keychainMock.uploadPrivateKey.calledOnce).to.be.true;
                    done();
                });
            });
        });

        describe('goBack', function() {
            it('should work', function() {
                scope.step = 2;
                scope.goBack();
                expect(scope.step).to.equal(1);
            });

            it('should not work for < 2', function() {
                scope.step = 1;
                scope.goBack();
                expect(scope.step).to.equal(1);
            });
        });

        describe('goForward', function() {
            var verifyCodeStub, setDeviceNameStub, encryptAndUploadKeyStub;
            beforeEach(function() {
                verifyCodeStub = sinon.stub(scope, 'verifyCode');
                setDeviceNameStub = sinon.stub(scope, 'setDeviceName');
                encryptAndUploadKeyStub = sinon.stub(scope, 'encryptAndUploadKey');
            });
            afterEach(function() {
                verifyCodeStub.restore();
                setDeviceNameStub.restore();
                encryptAndUploadKeyStub.restore();
            });

            it('should work for < 2', function() {
                scope.step = 1;
                scope.goForward();
                expect(scope.step).to.equal(2);
            });

            it('should work for 2', function() {
                verifyCodeStub.returns(true);
                scope.step = 2;
                scope.goForward();
                expect(scope.step).to.equal(3);
            });

            it('should not work for 2 when code invalid', function() {
                verifyCodeStub.returns(false);
                scope.step = 2;
                scope.goForward();
                expect(scope.step).to.equal(2);
            });

            it('should fail for 3 due to error in setDeviceName', function(done) {
                scope.step = 3;
                setDeviceNameStub.yields(42);

                scope.onError = function(err) {
                    expect(err).to.exist;
                    expect(scope.step).to.equal(3);
                    done();
                };

                scope.goForward();
            });

            it('should fail for 3 due to error in encryptAndUploadKey', function(done) {
                scope.step = 3;
                setDeviceNameStub.yields();
                encryptAndUploadKeyStub.yields(42);

                scope.onError = function(err) {
                    expect(err).to.exist;
                    expect(scope.step).to.equal(4);
                    done();
                };

                scope.goForward();
            });

            it('should work for 3', function(done) {
                scope.step = 3;
                setDeviceNameStub.yields();
                encryptAndUploadKeyStub.yields();

                scope.onError = function(err) {
                    expect(err.title).to.equal('Success');
                    expect(scope.step).to.equal(4);
                    done();
                };

                scope.goForward();
            });
        });

    });
});