using System;
using System.IO;
using System.Xml;
using System.Collections.Generic;

namespace Server
{
    public class AccountDatabase
    {
        public string path = Environment.CurrentDirectory + "/database/accounts/";

        public List<Account> accounts = new List<Account>();

        public static void createAccount(int accountID, string username, string password) {
            if (accountExists(accountID)) {
                Debug.Log(TAG.INFO, "Account already exists");
                return;
            }

            Globals.ad.accounts.Add(new Account() { Username = username, AccountID = accountID, Password = password });

            using (XmlWriter w = XmlWriter.Create(path + username + ".xml")) {
                w.WriteStartDocument ();
                w.WriteStartElement("account");
                w.WriteElementString("userName", username);
                w.WriteElementString("accountID", accountID);
                w.WriteElementString("password", password);
                w.WriteEndElement();
                w.WriteEndDocument ();
                w.Flush();
            }

            Debug.Log(TAG.DEBUG, "Created new account with id: " + accountID);
        }

        public static bool login(int index, string userName, string password) {
            if (File.Exists (path + userName + ".xml")) {
                Debug.Log (TAG.INFO, "Account not found!");
                //Send packet for action failed
                return;
            }

            string u, p, id;
            id = u = p = null;

            using (XmlReader r = XmlReader.Create(Path + userName + ".xml")) {
                while (r.Read()) {
                    if (r.IsStartElement ()) {
                        if (r.Name.ToString () == "accountID")
                            id = r.ReadContentAsString ();

                        if (r.Name.ToString () == "userName")
                            u = r.ReadContentAsString ();

                        if (r.Name.ToString () == "password")
                            p = r.ReadContentAsString ();
                    }
                }
            }

            if (u != userName) {
                //Action Failed
                return;
            }
            if (p != password) {
                //Action Failed
                return;
            }

            Globals.ad.accounts.Add (new Account { AccountID = id, Username = u, Password = p });
        }

        public static bool accountExists(int accountID) {
            bool final = false;

            if (File.Exists (path + accountID + ".xml")) {
                final = true;
            }

            return final;
        }

        public static void deleteAccount(int username) {
            if (!File.Exists (path + accountID + ".xml")) {
                Debug.Log (TAG.ERROR, "Account not found!");
                return;
            }

            File.Delete(path + Account + ".xml");
        }
    }
}