using Discord;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace fatobg
{
    class Functions
    {
        Program main = new Program();

        public void UpdateDB(User user)
        {
            if (File.Exists(@"D:\Databases\DiscordUsers\" + user.Id + ".duser"))
            {
                System.IO.File.Delete(@"D:\Databases\DiscordUsers\" + user.Id + ".duser");
                string[] Data = { user.Name, Roles(user) };
                System.IO.File.WriteAllLines(@"D:\Databases\DiscordUsers\" + user.Id + ".duser", Data);
            }
            else
            {
                string[] Data = { user.Name, Roles(user) };
                System.IO.File.WriteAllLines(@"D:\Databases\DiscordUsers\" + user.Id + ".duser", Data);
            }
        }

        public string Roles(User user)
        {
            string toreturn = string.Empty;
            foreach (Role role in user.Roles)
            {
                if (role.Name!="Admin"||role.Name!="Mod"||role.Name!="@everyone")
                {
                    toreturn += role.Name + "|";
                }
            }
            return toreturn;
        }

        public string GetUsername(string uid)
        {
            if (File.Exists(@"D:\Databases\DiscordUsers\" + uid + ".duser"))
            {
                string[] Data = File.ReadAllLines(@"D:\Databases\DiscordUsers\" + uid + ".duser");
                return Data[0];
            }
            else
            {
                return null;
            }
        }

        public void AddToQueue(User user)
        {
            List<User> NA = new List<User>();
            List<User> EU = new List<User>();
            List<User> OC = new List<User>();
            List<User> AS = new List<User>();
            List<User> SA = new List<User>();

            Server server = main._client.FindServers("Find A Team On Battlegrounds (Bot Testing)").FirstOrDefault();
            User usr = server.FindUsers(user.Name).FirstOrDefault();

            if (File.Exists(@"D:\Databases\Duo.queue"))
            {
                string[] UData = System.IO.File.ReadAllLines(@"D:\Databases\Duo.queue");
                System.IO.File.Delete(@"D:\Databases\Duo.queue");
                foreach(String uid in UData)
                {
                    User tempuser = user.Server.FindUsers(GetUsername(uid)).FirstOrDefault();
                    List<Role> roles = tempuser.Roles.ToList();
                    foreach(Role role in roles)
                    {

                        if (role.Name == "[NA]")
                            NA.Add(tempuser);
                        else if (role.Name == "[EU]")
                            EU.Add(tempuser);
                        else if (role.Name == "[OC]")
                            OC.Add(tempuser);
                        else if (role.Name == "[AS]")
                            AS.Add(tempuser);
                        else if (role.Name == "[SA]")
                            SA.Add(tempuser);
                    }
                }

                List<Role> uroles = usr.Roles.ToList();
                foreach (Role role in uroles)
                {
                    if (role.Name == "[NA]")
                        NA.Add(usr);
                    else if (role.Name == "[EU]")
                        EU.Add(usr);
                    else if (role.Name == "[OC]")
                        OC.Add(usr);
                    else if (role.Name == "[AS]")
                        AS.Add(usr);
                    else if (role.Name == "[SA]")
                        SA.Add(usr);
                }

                File.WriteAllLines(@"D:\Databases\Duo.queue", UData);
                File.AppendAllText(@"D:\Databases\Duo.queue", usr.Id.ToString() + Environment.NewLine);

                if (NA.Count == 2)
                {
                    server.GetChannel(319281246746312714).SendMessage($":exclamation: | A new team has been found for NA servers. {NA[0].Mention} and {NA[1].Mention} prepare to fight.");
                    string[] Data = System.IO.File.ReadAllLines(@"D:\Databases\Duo.queue");
                    System.IO.File.Delete(@"D:\Databases\Duo.queue");
                    foreach (String id in Data)
                    {
                        if(id!=NA[0].Id.ToString()&&id!=NA[1].Id.ToString())
                            File.AppendAllText(@"D:\Databases\Duo.queue", id + Environment.NewLine);
                    }
                    NA.Clear();
                }
                else if (EU.Count == 2){
                    server.GetChannel(319281246746312714).SendMessage($":exclamation: | A new team has been found for EU servers. {EU[0].Mention} and {EU[1].Mention} prepare to fight.");
                    string[] Data = System.IO.File.ReadAllLines(@"D:\Databases\Duo.queue");
                    System.IO.File.Delete(@"D:\Databases\Duo.queue");
                    foreach (String id in Data)
                    {
                        if (id!=EU[0].Id.ToString()&&id!=EU[1].Id.ToString())
                            File.AppendAllText(@"D:\Databases\Duo.queue", id + Environment.NewLine);
                    }
                    EU.Clear();
                }
                else if (OC.Count == 2)
                {
                    server.GetChannel(319281246746312714).SendMessage($":exclamation: | A new team has been found for OC servers. {OC[0].Mention} and {OC[1].Mention} prepare to fight.");
                    string[] Data = System.IO.File.ReadAllLines(@"D:\Databases\Duo.queue");
                    System.IO.File.Delete(@"D:\Databases\Duo.queue");
                    foreach (String id in Data)
                    {
                        if (id!=OC[0].Id.ToString()&&id!=OC[1].Id.ToString())
                            File.AppendAllText(@"D:\Databases\Duo.queue", id + Environment.NewLine);
                    }
                    OC.Clear();
                }
                else if (AS.Count == 2)
                {
                    server.GetChannel(319281246746312714).SendMessage($":exclamation: | A new team has been found for AS servers. {AS[0].Mention} and {AS[1].Mention} prepare to fight.");
                    string[] Data = System.IO.File.ReadAllLines(@"D:\Databases\Duo.queue");
                    System.IO.File.Delete(@"D:\Databases\Duo.queue");
                    foreach (String id in Data)
                    {
                        if (id != AS[0].Id.ToString() && id != AS[1].Id.ToString())
                            File.AppendAllText(@"D:\Databases\Duo.queue", id + Environment.NewLine);
                    }
                    AS.Clear();
                }
                else if (SA.Count == 2)
                {
                    server.GetChannel(319281246746312714).SendMessage($":exclamation: | A new team has been found for SA servers. {SA[0].Mention} and {SA[1].Mention} prepare to fight.");
                    string[] Data = System.IO.File.ReadAllLines(@"D:\Databases\Duo.queue");
                    System.IO.File.Delete(@"D:\Databases\Duo.queue");
                    foreach (String id in Data)
                    {
                        if (id != SA[0].Id.ToString()&&id!=SA[1].Id.ToString())
                            File.AppendAllText(@"D:\Databases\Duo.queue", id + Environment.NewLine);
                    }
                    SA.Clear();
                }

            }
            else
            {
                File.AppendAllText(@"D:\Databases\Duo.queue", usr.Id.ToString() + Environment.NewLine);
            }
        }

    }
}