using System;
using System.Collections.Generic;
using fCraft.Events;

namespace fCraft
{
    public static class Doors
    {
        static readonly TimeSpan DoorCloseTimer = TimeSpan.FromMilliseconds(1500); // time that door will stay open
        public static Dictionary<string, Tuple<string[],Player>> DoorLookUp = new Dictionary<string,Tuple<string[],Player>>();


        public static void Init()
        {
            CommandManager.RegisterCommand(cdDoor);
            CommandManager.RegisterCommand(cdDoorRemove);

            Server.PlayerClicked += PlayerClickedDoor;

        }

        static readonly CommandDescriptor cdDoorRemove = new CommandDescriptor
        {
            Name = "removedoor",
            Aliases = new[] {"rd"},
            Category = CommandCategory.Zone,
            Permissions = new[] { Permission.Chat },
            Help = "Removes door.",
            Handler = DoorRemove
        };

        static void DoorRemove(Player player, Command cmd)
        {
            if (player.World.Map.FindZone(player.Info.Name + "door") != null)
            {
                player.World.Map.RemoveZone(player.Info.Name + "door");
                if(DoorLookUp.ContainsKey(player.Info.Name + "door")
                       DoorLookUp.Remove(player.Info.Name + "door");
                player.Message("Door removed.");
            }

        }

        static readonly CommandDescriptor cdDoor = new CommandDescriptor
        {
            Name = "door",
            Category = CommandCategory.Zone,
            Permissions = new[] { Permission.Chat },
            Help = "Creates door zone. Left click to open doors.",
            Handler = Door
        };

        static void Door(Player player, Command cmd)
        {
            if (player.World.Map.FindZone(player.Info.Name + "door") != null)
            {
                player.Message("One door per person.");
                return;
            }

            Zone door = new Zone();
            door.Name = player.Info.Name + "door";
            player.SetCallback(2, DoorAdd, door, cdDoor.Permissions);
            player.Message("Door: Place a block or type /mark to use your location.");

        }

        static void DoorAdd(Player player, Position[] marks, object tag)
        {
            int maxBlocks = 12;  //max door size, change as needed... should add config key

            int sx = Math.Min(marks[0].X, marks[1].X);
            int ex = Math.Max(marks[0].X, marks[1].X);
            int sy = Math.Min(marks[0].Y, marks[1].Y);
            int ey = Math.Max(marks[0].Y, marks[1].Y);
            int sh = Math.Min(marks[0].H, marks[1].H);
            int eh = Math.Max(marks[0].H, marks[1].H);

            int volume = (ex - sx + 1) * (ey - sy + 1) * (eh - sh + 1);
            if (volume > maxBlocks)
            {
                player.Message("Doors are only allowed to be {0} blocks", maxBlocks);
                return;
            }

            ZoneCommands.ZoneAddCallback(player, marks, tag);
            player.Message("Door successfully created");

            Logger.Log("{0} created door {1} (on world {2})", LogType.UserActivity, player.Name, player.Name + "door", player.World.Name);
        }


        static void DoorTimer_Elapsed(SchedulerTask task)
        {
            string door = (string)task.UserState;
            string[] doorVars = DoorLookUp[door].Item1;
            string x, y, z, b;

            //parse values from DoorLookUp
            x = doorVars[0].TrimEnd(' '); y = doorVars[1].TrimEnd(' '); z = doorVars[2].TrimEnd(' '); b = doorVars[3].TrimEnd(' ');
            string[] xs = x.Split(' '), ys = y.Split(' '), zs = z.Split(' '), bs = b.Split(' ');

            int i = 0;

            foreach (string arg in xs)
            {
                DoorLookUp[door].Item2.World.Map.QueueUpdate(new BlockUpdate(null, Int32.Parse(xs[i]), Int32.Parse(ys[i]), Int32.Parse(zs[i]), Byte.Parse(bs[i])));
                i++;
            }


        }

        public static void PlayerClickedDoor(object sender, PlayerClickedEventArgs e)
        {

            Zone[] allowed, denied;
            if (e.Player.World.Map.TestZones(e.X, e.Y, e.H, e.Player, out allowed, out denied))
            {
                foreach (Zone zone in allowed)
                {
                    if (zone.Name.Contains("door"))
                    {

                        CutDoor(zone, e.Player);

                    }
                }

            }
        }

        public static void CutDoor(Zone zone, Player player)
        {

            int sx = zone.Bounds.XMin;
            int ex = zone.Bounds.XMax;
            int sy = zone.Bounds.YMin;
            int ey = zone.Bounds.YMax;
            int sh = zone.Bounds.HMin;
            int eh = zone.Bounds.HMax;

            string[] DL = new string[4];

            DL[0] = ""; DL[1] = ""; DL[2] = ""; DL[3] = "";

            //for each block in selection, add x, y, z coords and block type to string array
            for (int i = sx; i <= ex; i++)
            {
                for (int j = sy; j <= ey; j++)
                {
                    for (int k = sh; k <= eh; k++)
                    {
                        DL[0] += i.ToString() + " "; //x
                        DL[1] += j.ToString() + " "; //y
                        DL[2] += k.ToString() + " "; //z
                        DL[3] += player.World.Map.GetBlockByte(i, j, k) + " "; //block

                        //clear the door
                        player.World.Map.QueueUpdate(new BlockUpdate(null, i, j, k, Block.Air));

                    }
                }
            }

            Logger.Log("{0} opened door {1} (on world {2})", LogType.UserActivity, player.Name, zone.Name, player.World.Name);

            var values = Tuple.Create(DL, player);

            if (!DoorLookUp.ContainsKey(zone.Name))
            {
                DoorLookUp.Add(zone.Name, values);
            }
            else
            {
                DoorLookUp[zone.Name] = values;
            }

            Scheduler.NewTask(DoorTimer_Elapsed).RunOnce(zone.Name, DoorCloseTimer); //timer to re-close door
        }
    }
}