var https = require('https')
var querystring = require('querystring')

var messageContent = 'CommzGate test SMS message'

//If non chinese use 'A' Else 'U' 
var messageType = /^[\x00-\x7F]*$/.test(messageContent)

if(!messageType){
    //We need to convert the message content to hex padded with zeros.
    var convertedContent = '';
    for(var i = 0; i < messageContent.length;i++){
        var tmp = messageContent.charCodeAt(i).toString(16)
        //Padd with zeros until its 4 chars long.
        var pad = '';
        for(var j =0; j< 4 - tmp.length ; j++){
            pad += '0'
        }
        convertedContent += pad+tmp 
    }
    
}

var cgPostString = querystring.stringify({
    'ID' : '<API ID>',
    'Password' : '<API Password>',
    'Mobile' : '6591000000',
    'Type' : (messageType)?'A':'U',
    'Message' : (messageType)?messageContent:convertedContent
})

var cghttpsOptions = {
    hostname: 'www.commzgate.net',
    port: 443,
    path: '/gateway/SendMsg',
    method: 'POST',
    headers: {
        'Content-Type': 'application/x-www-form-urlencoded',
        'Content-Length': cgPostString.length
    }
}

var cgReq = https.request(cghttpsOptions, (cgRes) => { 
    
    cgRes.on('data', (value) =>{
        if(value.indexOf('01010') > -1){
            console.log('Success! :'+value)
        }
        else{
            console.log('Error : '+value)
        }
    })
})

cgReq.on('error', (cgError) =>{
    console.log('CG error: %j',cgError)
})

cgReq.write(cgPostString)
cgReq.end()