Pick-to-Light Integration

using System;
using System.Collections.Generic;
using System.Net;
using System.Text;  // for class Encoding
using System.IO;    // for StreamReader
System.Net.ServicePointManager.SecurityProtocol = System.Net.ServicePointManager.SecurityProtocol Or SecurityProtocolType.Tls11 Or SecurityProtocolType.Tls12;

namespace CDDDemo
{
    public class IllegalArgumentException: Exception {
        public IllegalArgumentException(string message): base(message) {
        }
    }
    public class RuntimeException: Exception {
        public RuntimeException(string message): base(message) {
        }
    }
    class Program
    {
        static void Main(string[] args)
        {

            try {
                VoodooAPI v = new VoodooAPI();  //create a VoodooAPI object

                v.setUsernameAndPassword("yourusername","yourpassword");
                v.setDeviceID("FAAD4B:8E336A");
                v.setDisplay("hello","there");
                v.setTune("140,c5,1,c5,1,f5,3,p,2,c5,1,f5,1,a5,3");

                v.execute();  //first call will force a login

                v.setDeviceID("FF754A:E24C16");
                v.setDisplay("here's","another");

                v.execute();  //uses the same tune as above

                v.setDeviceID("FB9915:C956FC");
                v.setDisplay("and","another");

                v.execute();  //change only those parameters that you need to

            }
            catch (IllegalArgumentException e) {
                Console.WriteLine("Illegal Argument Exception, Result = " + e);
            }
            catch (RuntimeException e) {
                Console.WriteLine("Runtime Exception, Result = " + e);
            }
            catch (Exception e) {
                Console.WriteLine("Exception, Result = " + e);
            }

        }
        
    }

    public class VoodooAPI
    {

        public enum operationType {
            display, 
            flash,
            opStatic,
            opStatic2,
            location
        };

        private string baseurl = "https://www.sku-keeper.com/";
        private string username;
        private string password;
        private string deviceID;
        private string line1;
        private string line2;
        private operationType op = operationType.display;
        private string tune;
        private short time = 10;
        private string txnID;
        private bool loggedIn = false;
        CookieContainer cookieContainer;

        public VoodooAPI()
        {
            cookieContainer = new CookieContainer();
        }

        public void setUsernameAndPassword(string u, string p)
        {
            username = u;
            password = p;
        }

        public void login()
        {
            //make sure there is a username and password set
            if (username=="") {
                throw(new IllegalArgumentException("Username not set"));
            }
            if (password=="") {
                throw(new IllegalArgumentException("Password not set"));
            }

            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(baseurl);
            request.CookieContainer = cookieContainer;
            
            string postData="name="+username+"&pass="+password+"&form_id=user_login_block";
            var data = Encoding.ASCII.GetBytes(postData);

            request.Method = "POST";
            request.ContentType = "application/x-www-form-urlencoded";
            request.ContentLength = data.Length;

            using (var stream = request.GetRequestStream())
            {
                stream.Write(data, 0, data.Length);
            }

            var response = (HttpWebResponse)request.GetResponse();

            var responseString = new StreamReader(response.GetResponseStream()).ReadToEnd();

            response.close();

            loggedIn = true;
        }

        public void execute()
        {
            //make sure a deviceID has been set
            if (deviceID=="") {
                throw(new IllegalArgumentException("DeviceID not set"));
            }

            //set up the operation
            string opWord;
            switch (op) {
                case operationType.display: opWord = "display";
                    break;
                case operationType.flash: opWord = "flash";
                    break;
                case operationType.opStatic: opWord = "static";
                    break;
                case operationType.opStatic2: opWord = "static2";
                    break;
                case operationType.location: opWord = "location";
                    break;
                default: throw(new IllegalArgumentException("Bad operation"));
            }

            //if there is no tune set, set it to none, which implies silence--not even a beep!
            if (tune=="") {
                tune = "none";
            }

            //are we already logged in?  No need to log in twice.
            if (!loggedIn) {
                login();
            }

            //if we get here and we're not logged in, there is some weird problem
            //I don't think this could really happen, because if there is an error, the login above will
            //throw an exception, and the code below will not execute.
            if (!loggedIn) {
                throw(new RuntimeException("Login failed!"));
            }

            //okay, set up the whole url for the get request
            //see:  https://voodoorobotics.com/constructing-a-url/
            string url = baseurl+"api/"+deviceID+"/"+opWord+"/"+line1+"/"+line2;
            switch (op) {
                case operationType.display: 
                    url += "/"+tune+"/"+ time.ToString();
                    break;
                case operationType.flash: 
                    url += "/"+tune+"/"+ time.ToString();
                    break;
                case operationType.opStatic:
                case operationType.opStatic2:
                case operationType.location:
                default:
                    break;
                     //do nothing!
            }

            //if there is a transaction ID for the closed loop, then add it here
            //see: https://voodoorobotics.com/closed-loop-system/
            if (txnID!="") {
                url += "/"+txnID;
            }

            try {
                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
                request.CookieContainer = cookieContainer;

                var response = (HttpWebResponse)request.GetResponse();

                var responseString = new StreamReader(response.GetResponseStream()).ReadToEnd();
                  //response discarded in this demo!
                response.close();
            }
            catch(Exception e) {
                loggedIn = false;  //if there was a problem, make sure that I'm logged out.
                throw e;  //rethrow the error
            }

        }

        public void setDeviceID(string id)
        {
            deviceID = id;
        }

        public void setOperation(operationType ot)
        {
            op = ot;
        }

        public void setDisplay(string l1, string l2)
        {
            line1 = l1;
            line2 = l2;
        }

        public void setTune(string t)
        {
            tune = t;
        }

        public void setTime(short t)
        {
            time = t;
        }

        public void setTransactionID(string txn)
        {
            txnID = txn;
        }

    }
}