var db;
if (process.platform == 'win32')
{
    db = require('SimpleDataStore').Create(process.execPath.replace('.exe', '.db'));
}
else
{
    db = require('SimpleDataStore').Create(process.execPath + '.db');
}


if (process.argv.length > 1)
{
    switch(process.argv[1])
    {
        case 'put':
            console.log('PUT ' + process.argv[2] + ' = ' + process.argv[3]);
            db.Put(process.argv[2], process.argv[3]);
            process.exit();
            break;
        case 'get':
            console.log('GET ' + process.argv[2] + ' = ');
            var val = db.Get(process.argv[2]);
            if (process.argv[2] == 'CoreModule') { val = val.slice(4); }
            console.log(val);
            process.exit();
            break;
        case 'keys':
            console.log('KEYS = ' + db.Keys);
            process.exit();
            break;
        case 'delete':
            console.log('Deleting ' + process.argv[2]);
            db.Delete(process.argv[2]);
            process.exit();
            break;
        case 'export':
            if (process.argv[2] == 'CoreModule')
            {
                db.target = require('fs').createWriteStream('CoreModule.js', { flags: 'wb' });
                db.target.write(db.Get(process.argv[2]).slice(4), function () { console.log('finished exporting'); process.exit(); });
            }
            else
            {
                db.target = require('fs').createWriteStream(process.argv[2], 'wb');
                db.target.write(db.Get(process.argv[2]), function () { console.log('finished exporting'); process.exit(); });
            }
            break;
        case 'import':
            if (process.argv[2] == 'CoreModule')
            {
                var src = require('fs').readFileSync('CoreModule.js', 'rb');
                var src2 = Buffer.concat([Buffer.alloc(4), src]);
                db.Put(process.argv[2], src2);
                console.log('CoreModule imported');
            }
            process.exit();
            break;
        default:
            console.log('unknown command "' + process.argv[1] + '"');
            process.exit();
            break;
    }
}