/* gpgme.js - Javascript integration for gpgme
 * Copyright (C) 2018 Bundesamt für Sicherheit in der Informationstechnik
 *
 * This file is part of GPGME.
 *
 * GPGME is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * GPGME is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this program; if not, see <http://www.gnu.org/licenses/>.
 * SPDX-License-Identifier: LGPL-2.1+
 *
 * Author(s):
 *     Maximilian Krambach <mkrambach@intevation.de>
 */

/* global describe, it, expect, Gpgmejs */
/* global inputvalues, encryptedData, bigString, bigBoringString */

describe('Encryption and Decryption', function () {
    it('Successful encrypt and decrypt simple string', function (done) {
        let prm = Gpgmejs.init();
        prm.then(function (context) {
            context.encrypt(
                inputvalues.encrypt.good.data,
                inputvalues.encrypt.good.fingerprint).then(
                function (answer) {
                    expect(answer).to.not.be.empty;
                    expect(answer.data).to.be.a('string');
                    expect(answer.data).to.include('BEGIN PGP MESSAGE');
                    expect(answer.data).to.include('END PGP MESSAGE');
                    context.decrypt(answer.data).then(function (result) {
                        expect(result).to.not.be.empty;
                        expect(result.data).to.be.a('string');
                        expect(result.data).to.equal(
                            inputvalues.encrypt.good.data);
                        done();
                    });
                });
        });
    });

    it('Decrypt simple non-ascii', function (done) {
        let prm = Gpgmejs.init();
        prm.then(function (context) {
            let data = encryptedData;
            context.decrypt(data).then(
                function (result) {
                    expect(result).to.not.be.empty;
                    expect(result.data).to.be.a('string');
                    expect(result.data).to.equal(
                        '¡Äußerste µ€ før ñoquis@hóme! Добрый день\n');
                    done();
                });
        });
    }).timeout(3000);

    it('Roundtrip does not destroy trailing whitespace',
        function (done) {
            let prm = Gpgmejs.init();
            prm.then(function (context) {
                let data = 'Keks. \rKeks \n Keks \r\n';
                context.encrypt(data,
                    inputvalues.encrypt.good.fingerprint).then(
                    function (answer) {
                        expect(answer).to.not.be.empty;
                        expect(answer.data).to.be.a('string');
                        expect(answer.data).to.include(
                            'BEGIN PGP MESSAGE');
                        expect(answer.data).to.include(
                            'END PGP MESSAGE');
                        context.decrypt(answer.data).then(
                            function (result) {
                                expect(result).to.not.be.empty;
                                expect(result.data).to.be.a('string');
                                expect(result.data).to.equal(data);
                                done();

                            });
                    });
            });
        }).timeout(5000);

    for (let j = 0; j < inputvalues.encrypt.good.data_nonascii_32.length; j++){
        it('Roundtrip with >1MB non-ascii input meeting default chunksize (' +
            (j + 1) + '/'
            + inputvalues.encrypt.good.data_nonascii_32.length + ')',
        function (done) {
            let input = inputvalues.encrypt.good.data_nonascii_32[j];
            expect(input).to.have.length(32);
            let prm = Gpgmejs.init();
            prm.then(function (context) {
                let data = '';
                for (let i=0; i < 34 * 1024; i++){
                    data += input;
                }
                context.encrypt(data,
                    inputvalues.encrypt.good.fingerprint).then(
                    function (answer) {
                        expect(answer).to.not.be.empty;
                        expect(answer.data).to.be.a('string');
                        expect(answer.data).to.include(
                            'BEGIN PGP MESSAGE');
                        expect(answer.data).to.include(
                            'END PGP MESSAGE');
                        context.decrypt(answer.data).then(
                            function (result) {
                                expect(result).to.not.be.empty;
                                expect(result.data).to.be.a('string');
                                expect(result.data).to.equal(data);
                                done();
                            });
                    });
            });
        }).timeout(3000);
    }

    it('Random data, as string', function (done) {
        let data = bigString(1000);
        let prm = Gpgmejs.init();
        prm.then(function (context) {
            context.encrypt(data,
                inputvalues.encrypt.good.fingerprint).then(
                function (answer) {
                    expect(answer).to.not.be.empty;
                    expect(answer.data).to.be.a('string');
                    expect(answer.data).to.include(
                        'BEGIN PGP MESSAGE');
                    expect(answer.data).to.include(
                        'END PGP MESSAGE');
                    context.decrypt(answer.data).then(
                        function (result) {
                            expect(result).to.not.be.empty;
                            expect(result.data).to.be.a('string');
                            expect(result.data).to.equal(data);
                            done();
                        });
                });
        });
    }).timeout(3000);

    it('Data, input as base64', function (done) {
        let data = inputvalues.encrypt.good.data;
        let b64data = btoa(data);
        let prm = Gpgmejs.init();
        prm.then(function (context) {
            context.encrypt(b64data,
                inputvalues.encrypt.good.fingerprint, true).then(
                function (answer) {
                    expect(answer).to.not.be.empty;
                    expect(answer.data).to.be.a('string');
                    expect(answer.data).to.include(
                        'BEGIN PGP MESSAGE');
                    expect(answer.data).to.include(
                        'END PGP MESSAGE');
                    context.decrypt(answer.data).then(
                        function (result) {
                            expect(result).to.not.be.empty;
                            expect(result.data).to.be.a('string');
                            expect(data).to.equal(data);
                            done();
                        });
                });
        });
    }).timeout(3000);

    it('Random data, input as base64', function (done) {
        let data = bigBoringString(0.001);
        let b64data = btoa(data);
        let prm = Gpgmejs.init();
        prm.then(function (context) {
            context.encrypt(b64data,
                inputvalues.encrypt.good.fingerprint, true).then(
                function (answer) {
                    expect(answer).to.not.be.empty;
                    expect(answer.data).to.be.a('string');
                    expect(answer.data).to.include(
                        'BEGIN PGP MESSAGE');
                    expect(answer.data).to.include(
                        'END PGP MESSAGE');
                    context.decrypt(answer.data).then(
                        function (result) {
                            expect(result).to.not.be.empty;
                            expect(result.data).to.be.a('string');
                            expect(result.data).to.equal(b64data);
                            done();
                        });
                });
        });
    }).timeout(3000);

});