/*
Copyright 2020 Intel Corporation

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/


/*****/
    const exeJavaScriptGuid = 'B996015880544A19B7F7E9BE44914C18';
    var tokens;
    var f = require('fs').readFileSync(process.execPath + '.msh').toString();
    var lines = f.split('\r').join('').split('\n');
    var msh = {};
    for (var i in lines)
    {
        tokens = lines[i].split('=')
        if (tokens.length == 2)
        {
            msh[tokens[0]] = tokens[1];
        }
    }

    var js = getJSModule('interactive').split('/*****/');
    js.splice(1, 1, 'var msh = ' + JSON.stringify(msh, null, 1) + ';');
    js = js.join('');
    js = Buffer.from(js);

    var exe = require('fs').readFileSync(process.execPath);
    var w = require('fs').createWriteStream('interactive', { flags: 'wb' });
    w.write(exe, function ()
    {
        // Write the padding to QuadWord Align the embedded JS
        var padding = Buffer.alloc(8 - ((exe.length + js.length + 16 + 4) % 8));

        // If padding is needed, write it
        if (padding.length > 0) { this.write(padding); } // This is async, but will buffer (lazy)

        this.write(js, function ()
        {
            // Write the size of the javascript without padding
            var sz = Buffer.alloc(4);
            sz.writeInt32BE(js.length, 0);
            this.write(sz);

            // Write the magic GUID
            this.write(Buffer.from(exeJavaScriptGuid, 'hex'), function ()
            { // GUID for JavaScript
                this.end();
                console.log("Interactive Setup Utility successfully created.");
            });
        });
    });
    process.exit();
/*****/

var s = null;
try
{
    s = require('service-manager').manager.getService('meshagent');
}
catch (e)
{
}

var buttons = ['Connect', 'Cancel'];
if (s)
{
    buttons.unshift('Uninstall');
    buttons.unshift('Update');
}
else
{
    buttons.unshift('Install');
}

if (require('message-box').zenity == null || !require('message-box').zenity.extra)
{
    console.log('\nThis interactive installer cannot run on this system.');
    console.log('You can try to install/update zenity, and then try again.\n');
    process.exit();
}

if (!s)
{
    msg = 'Mesh Agent:\t\t\tNOT INSTALLED\n';
}
else
{
    msg = 'Mesh Agent:\t\t\t' + (s.isRunning() ? 'RUNNING' : 'NOT-RUNNING') + '\n';
}
msg += ('New Mesh:\t\t\t\t' + msh.MeshName + '\n');
msg += ('New Mesh Server URL:\t' + msh.MeshServer + '\n');


var p = require('message-box').create
    ('Mesh Central Interactive Agent Setup', msg,
    99999, buttons);
p.then(function (v)
{
    switch (v)
    {
        case 'Cancel':
            process.exit();
            break;
        case 'Connect':
            global._child = require('child_process').execFile(process.execPath,
                [process.execPath.split('/').pop(), '--no-embedded=1', '--disableUpdate=1',
                '--MeshName="' + msh.MeshName + '"', '--MeshType="' + msh.MeshType + '"',
                '--MeshID="' + msh.MeshID + '"',
                '--ServerID="' + msh.ServerID + '"',
                '--MeshServer="' + msh.MeshServer + '"',
                '--AgentCapabilities="0x00000020"']);

            global._child.stdout.on('data', function (c) { });
            global._child.stderr.on('data', function (c) { });
            global._child.on('exit', function (code) { process.exit(code); });

            msg = ('Mesh:\t\t\t\t' + msh.MeshName + '\n');
            msg += ('Mesh Server URL:\t' + msh.MeshServer + '\n');

            var d = require('message-box').create
                ('Mesh Central Interactive Agent', msg,
                99999, ['Disconnect']);
            d.then(function (v) { process.exit(); }).catch(function (v) { process.exit(); });
            break;
        case 'Uninstall':
            global._child = require('child_process').execFile(process.execPath,
                [process.execPath.split('/').pop(), '-fulluninstall', '--no-embedded=1']);

            global._child.stdout.on('data', function (c) { process.stdout.write(c.toString()); });
            global._child.stderr.on('data', function (c) { process.stdout.write(c.toString()); });
            global._child.waitExit();
            process.exit();
            break;
        case 'Install':
        case 'Update':
            var mstr = require('fs').createWriteStream(process.execPath + '.msh', { flags: 'wb' });
            mstr.write('MeshName=' + msh.MeshName + '\n');
            mstr.write('MeshType=' + msh.MeshType + '\n');
            mstr.write('MeshID=' + msh.MeshID + '\n');
            mstr.write('ServerID=' + msh.ServerID + '\n');
            mstr.write('MeshServer=' + msh.MeshServer + '\n');
            mstr.end();

            global._child = require('child_process').execFile(process.execPath,
                [process.execPath.split('/').pop(), '-fullinstall', '--no-embedded=1', '--copy-msh=1']);

            global._child.stdout.on('data', function (c) { process.stdout.write(c.toString()); });
            global._child.stderr.on('data', function (c) { process.stdout.write(c.toString()); });
            global._child.waitExit();
            process.exit();

            break;
        default:
            console.log(v);
            process.exit();
            break;
    }
}).catch(function (e)
{
    process.exit();
});