using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using SimpleHttp;
using System.Xml.Linq;
using Newtonsoft;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;

namespace BodyshopPartner.Utils
{
    public static class HTTPServer
    {
        private static NLog.Logger logger = NLog.LogManager.GetCurrentClassLogger();
        public delegate void HttpLogger(string s);
        private static HttpLogger hlog;
        public static void InitHttpServer(HttpLogger HttpLogger)
        {
            Route.Add("/qb/", (req, res, props) =>
            {
                res.WithCORS();
                //res.AddHeader("Access-Control-Allow-Origin", "http://localhost:3000 https://localhost:3000 http://localhost:5000 https://localhost:5000 https://*.imex.online,imex.online");
                res.Close();
            }, "OPTIONS");

            Route.Add("/qb/",
                (req, res, props) => { HandleQbPost(req, res); }
            , "POST");

            logger.Trace("Starting HTTP server...");
            hlog = HttpLogger;
            hlog("Starting HTTP server...");
            //TODO As a part of the installer, add netsh http add urlacl url=http://+:1337/ user="Everyone
            HttpServer.ListenAsync(1337, System.Threading.CancellationToken.None, Route.OnHttpRequestAsync).Wait();
        }

        private static void HandleQbPost(System.Net.HttpListenerRequest req, System.Net.HttpListenerResponse res)
        {
            logger.Debug("/qb/ - POST");
            //Input will be an array of XMLs. 

            string[] requestXMLstrings = ParseBodyToArray(req);
            hlog("Received QuickBooks Receivable request.");

            // string requestXMLstring = ParseBodyToString(req);
            foreach (var requestXMLstring in requestXMLstrings)
            {
                XDocument requestXMLdoc = ParseStringToXml(requestXMLstring);
                XDocument response = XDocument.Parse(QuickBooksInterop.ProcessQBXmlRequest(requestXMLstring));
                Models.QbXmlResponse ResponseStatus = QuickBooksInterop.ParseResponseXml(response);
                                logger.Info(response.ToString());
                logger.Info(ResponseStatus.ToString());
                hlog(ResponseStatus.ToString());

            }

            hlog("Completed QuickBooks request.");
            res.WithCORS().Close();
        }

        public static string[] ParseBodyToArray(System.Net.HttpListenerRequest req)
        {
            System.IO.Stream body = req.InputStream;
            System.Text.Encoding encoding = req.ContentEncoding;
            System.IO.StreamReader reader = new System.IO.StreamReader(body, encoding);
            string s = reader.ReadToEnd();
            body.Close();
            reader.Close();

            return JArray.Parse(s).Select(jv => jv.ToString()).ToArray();
        }

        public static string ParseBodyToString(System.Net.HttpListenerRequest req)
        {
            System.IO.Stream body = req.InputStream;
            System.Text.Encoding encoding = req.ContentEncoding;
            System.IO.StreamReader reader = new System.IO.StreamReader(body, encoding);
            string s = reader.ReadToEnd();
            body.Close();
            return s;
        }

        public static XDocument ParseStringToXml(string input)
        {
            return XDocument.Parse(input);
        }


    }
}