/* vim: ts=4:sw=4
 *
 * This program 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 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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/>.
 */

;(function() {
    function validateNumber() {
        try {
            var regionCode = $('#regionCode').val();
            var number     = $('#number').val();

            var parsedNumber = libphonenumber.util.verifyNumber(number, regionCode);

            $('#regionCode').val(libphonenumber.util.getRegionCodeForNumber(parsedNumber));
            $('#number-container').removeClass('invalid');
            $('#number-container').addClass('valid');
            $('#request-sms, #request-voice').removeAttr('disabled');
            return parsedNumber;
        } catch(e) {
            $('#number-container').removeClass('valid');
            $('#request-sms, #request-voice').prop('disabled', 'disabled');
        }
    };

    function validateCode() {
        var verificationCode = $('#code').val().replace(/\D/g, '');
        if (verificationCode.length == 6) {
            return verificationCode;
        }
    };

    function displayError(error) {
        $('#error').hide().text(error).fadeIn();
    };

    textsecure.registerOnLoadFunction(function() {
        $(function() {
            if (isRegistrationDone()) {
                $('#complete-number').text(textsecure.utils.unencodeNumber(textsecure.storage.getUnencrypted("number_id"))[0]);//TODO: no
                $('#setup-complete').show();
            } else {
                $('#choose-setup').show();
                $('#number').keyup(validateNumber);
                $('#regionCode').change(validateNumber);

                $.each(libphonenumber.util.getAllRegionCodes(), function (regionCode, countryName) {
                    $('#regionCode').append(
                        $('<option>', { value: regionCode, text: countryName })
                    );
                });

                $('#code').on('change', function() {
                    if (!validateCode())
                        $('#code').addClass('invalid');
                    else
                        $('#code').removeClass('invalid');
                });

                $('#request-voice').click(function() {
                    var number = validateNumber();
                    if (number) {
                        textsecure.api.requestVerificationVoice(number).catch(displayError);
                        $('#step2').fadeIn();
                    } else {
                        $('#number-container').addClass('invalid');
                    }
                });

                $('#request-sms').click(function() {
                    var number = validateNumber();
                    if (number) {
                        textsecure.api.requestVerificationSMS(number).catch(displayError);
                        $('#step2').fadeIn();
                    } else {
                        $('#number-container').addClass('invalid');
                    }
                });

                $('#new-account').click(function(){
                    $('#choose-setup').fadeOut(function() {
                        $('#single-device').fadeIn();
                    });

                    $('#single-device .back').click(function() {
                        $('#single-device').fadeOut(function() {
                            $('#choose-setup').fadeIn();
                            $('#number').removeClass('invalid');
                        });
                    });

                    $('#single-device form').submit(function(e) {
                        e.preventDefault();
                        $('#error').hide();
                        var number = validateNumber();
                        var verificationCode = validateCode();
                        if (number && verificationCode) {
                            $('#verify1').hide();
                            $('#verify2done').text('');
                            $('#verify3done').text('');
                            $('#verify4done').text('');
                            $('#verify5').hide();
                            $('#verify').show();

                            textsecure.registerSingleDevice(number, verificationCode, function(step) {
                                switch(step) {
                                case 1:
                                    $('#verify2done').text('done');
                                    break;
                                case 2:
                                    $('#verify3done').text('done');
                                    break;
                                case 3:
                                    $('#complete-number').text(number);
                                    $('#verify').hide();
                                    $('#setup-complete').show();
                                    registrationDone();
                                }
                            }).catch(function(error) {
                                //TODO: No alerts...
                                if (error.humanError)
                                    displayError(error.humanError);
                                else
                                    displayError(error); //XXX
                            });
                        }
                    });
                });

                $('#new-device').click(function(){
                    $('#choose-setup').fadeOut(function() {
                        $('#multi-device').fadeIn();
                    });

                    $('#multi-device .back').click(function() {
                        $('#multi-device').fadeOut(function() {
                            $('#choose-setup').fadeIn();
                            $('#number').removeClass('invalid');
                        });
                    });

                    $('#multi-device .status').text("Connecting...");
                    $('#setup-qr').html('');
                    textsecure.crypto.prepareTempWebsocket().then(function(cryptoInfo) {
                        var qrCode = new QRCode(document.getElementById('setup-qr'));
                        var socket = textsecure.api.getTempWebsocket();

                        socket.onmessage = function(message) {
                            if (message.uuid) {
                                qrCode.makeCode('textsecure-device-init:/' +
                                                '?channel_uuid=' + message.uuid +
                                                '&channel_server=' + textsecure.api.relay +
                                                '&publicKey=' + btoa(getString(cryptoInfo.publicKey)));
                                $('img').removeAttr('style');
                                $('#multi-device .status').text("Use your phone to scan the QR code.")
                            } else {
                                $('#init-setup').hide();
                                $('#verify1done').text('');
                                $('#verify2done').text('');
                                $('#verify3done').text('');
                                $('#verify4done').text('');
                                $('#verify5done').text('');
                                $('#verify').show();


                                textsecure.registerSecondDevice(cryptoInfo, message.message, function(step) {
                                    switch(step) {
                                    case 1:
                                        $('#verify1done').text('done');
                                        break;
                                    case 2:
                                        $('#verify2done').text('done');
                                        break;
                                    case 3:
                                        $('#verify3done').text('done');
                                        break;
                                    case 4:
                                        //TODO: User needs to verify number before we continue
                                        $('#complete-number').text(parsedNumber);
                                        $('#verify4done').text('done');
                                    case 5:
                                        $('#verify').hide();
                                        $('#setup-complete').show();
                                        registrationDone();
                                    }
                                });
                            }
                        };

                        socket.ondisconnect = function() {
                            $('#multi-device .status').text("The push server disconnected, please wait while we reconnect...");
                        };
                    });
                });
            }
        });
    });
})();