using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using OpenSim.world;
using OpenSim.UserServer;
using OpenSim.Servers;

namespace OpenSim.CAPS
{
    public class AdminWebFront
    {
        private string AdminPage;
        private string NewAccountForm;
        private string LoginForm;
        private string passWord = "Admin";
        private World m_world;
        private LoginServer _userServer;

        public AdminWebFront(string password, World world, LoginServer userserver)
        {
            _userServer = userserver;
            m_world = world;
            passWord = password;
            LoadAdminPage();
        }

        public void LoadMethods( BaseHttpServer server )
        {
            server.AddRestHandler("GET", "/Admin", GetAdminPage);
            server.AddRestHandler("GET", "/Admin/Welcome", GetWelcomePage);
            server.AddRestHandler("GET", "/Admin/Accounts", GetAccountsPage );
            server.AddRestHandler("GET", "/Admin/Clients", GetConnectedClientsPage );

            server.AddRestHandler("POST", "/Admin/NewAccount", PostNewAccount );
            server.AddRestHandler("POST", "/Admin/Login", PostLogin );
        }

        private string GetWelcomePage(string request, string path)
        {
            string responseString;
            responseString = "Welcome to the OpenSim Admin Page";
            responseString += "<br><br><br> " + LoginForm;
            return responseString;
        }

        private string PostLogin(string requestBody, string path)
        {
            string responseString;
// Console.WriteLine(requestBody);
            if (requestBody == passWord)
            {
                responseString = "<p> Login Successful </p>";
            }
            else
            {
                responseString = "<p> Password Error </p>";
                responseString += "<p> Please Login with the correct password </p>";
                responseString += "<br><br> " + LoginForm;
            }
            return responseString;
        }

        private string PostNewAccount(string requestBody, string path)
        {
            string responseString;
            string firstName = "";
            string secondName = "";
            string userPasswd = "";
            string[] comp;
            string[] passw;
            string[] line;
            string delimStr = "&";
            char[] delimiter = delimStr.ToCharArray();
            string delimStr2 = "=";
            char[] delimiter2 = delimStr2.ToCharArray();

            //Console.WriteLine(requestBody);
            comp = requestBody.Split(delimiter);
            passw = comp[3].Split(delimiter2);
            if (passw[1] == passWord)  // check admin password is correct
            {
                                
                line = comp[0].Split(delimiter2); //split firstname
                if (line.Length > 1)
                {
                    firstName = line[1];
                }
                line = comp[1].Split(delimiter2); //split secondname
                if (line.Length > 1)
                {
                    secondName = line[1];
                }
                line = comp[2].Split(delimiter2); //split user password
                if (line.Length > 1)
                {
                    userPasswd = line[1];
                }
                if (this._userServer != null)
                {
                    this._userServer.CreateUserAccount(firstName, secondName, userPasswd);
                }
                responseString = "<p> New Account created </p>";
            }
            else
            {
                responseString = "<p> Admin password is incorrect, please login with the correct password</p>";
                responseString += "<br><br>" + LoginForm;
            }
            return responseString;
        }

        private string GetConnectedClientsPage(string request, string path)
        {
            string responseString;
            responseString = " <p> Listing connected Clients </p>";
            OpenSim.world.Avatar TempAv;
            foreach (libsecondlife.LLUUID UUID in m_world.Entities.Keys)
            {
                if (m_world.Entities[UUID].ToString() == "OpenSim.world.Avatar")
                {
                    TempAv = (OpenSim.world.Avatar)m_world.Entities[UUID];
                    responseString += "<p>";
                    responseString += String.Format("{0,-16}{1,-16}{2,-25}{3,-25}{4,-16},{5,-16}", TempAv.firstname, TempAv.lastname, UUID, TempAv.ControllingClient.SessionID, TempAv.ControllingClient.CircuitCode, TempAv.ControllingClient.userEP.ToString());
                    responseString += "</p>";
                }
            }
            return responseString;
        }

        private string GetAccountsPage(string request, string path)
        {
            string responseString;
            responseString = "<p> Account management </p>";
            responseString += "<br> ";
            responseString += "<p> Create New Account </p>";
            responseString += NewAccountForm;
            return responseString;
        }

        private string GetAdminPage(string request, string path)
        {
            return AdminPage;
        }

        private void LoadAdminPage()
        {
            try
            {
                StreamReader SR;
                string lines;
                AdminPage = "";
                NewAccountForm = "";
                LoginForm = "";
                SR = File.OpenText("testadmin.htm");

                while (!SR.EndOfStream)
                {
                    lines = SR.ReadLine();
                    AdminPage += lines + "\n";

                }
                SR.Close();

                SR = File.OpenText("newaccountform.htm");

                while (!SR.EndOfStream)
                {
                    lines = SR.ReadLine();
                    NewAccountForm += lines + "\n";

                }
                SR.Close();

                SR = File.OpenText("login.htm");

                while (!SR.EndOfStream)
                {
                    lines = SR.ReadLine();
                    LoginForm += lines + "\n";

                }
                SR.Close();
            }
            catch (Exception e)
            {
                Console.WriteLine(e.ToString());
            }

        }

    }
}