using GTANetworkAPI;
using ReallifeGamemode.Server.Entities;
using ReallifeGamemode.Server.Models;
using System;
using System.Collections.Generic;
using System.Timers;

namespace ReallifeGamemode.Server.Managers
{
    public class VehicleManager
    {
        private static readonly List<string> _enabledMods = new List<string>()
        {
            "models",
            "polamggtr",
            "impaler3",
            "monster4",
            "monster5",
            "slamvan6",
            "issi6",
            "cerberus2",
            "cerberus3",
            "deathbike2",
            "dominator6",
            "deathbike3",
            "impaler4",
            "slamvan4",
            "slamvan5",
            "brutus",
            "brutus2",
            "brutus3",
            "deathbike",
            "dominator4",
            "dominator5",
            "bruiser",
            "bruiser2",
            "bruiser3",
            "rcbandito",
            "italigto",
            "cerberus",
            "impaler2",
            "monster3",
            "tulip",
            "scarab",
            "scarab2",
            "scarab3",
            "issi4",
            "issi5",
            "clique",
            "deveste",
            "vamos",
            "imperator",
            "imperator2",
            "imperator3",
            "toros",
            "deviant",
            "schlagen",
            "impaler",
            "zr380",
            "zr3802",
            "zr3803",
            "flashgt",
            "gb200",
            "dominator3",
            "tezeract",
            "entity2",
            "taipan",
            "g65amg"
        };

        private static readonly Dictionary<int, NetHandle> _serverVehicles = new Dictionary<int, NetHandle>();

        private static readonly Dictionary<NetHandle, Vector3> lastPositions = new Dictionary<NetHandle, Vector3>();
        private static DateTime lastSave = DateTime.UtcNow;

        public static void StartTimer()
        {
            Timer timer = new Timer(500);
            timer.Elapsed += VehicleTimerTick;
            timer.Start();
        }

        private static void VehicleTimerTick(object sender, ElapsedEventArgs e)
        {
            NAPI.Pools.GetAllVehicles().ForEach(v =>
            {
                Vector3 lastPosition = v.Position;
                if (lastPositions.ContainsKey(v.Handle)) lastPosition = lastPositions[v.Handle];

                double distanceDriven = v.HasSharedData("drivenDistance") ? (double)v.GetSharedData("drivenDistance") : 0D;

                distanceDriven += (lastPosition.DistanceTo(v.Position) / 1000.0);

                v.SetSharedData("drivenDistance", (float)distanceDriven);

                lastPositions[v.Handle] = v.Position;
            });

            if (DateTime.UtcNow.Subtract(lastSave).Seconds >= 30)
            {
                lastSave = DateTime.UtcNow;
                // save to db
                using (var dbContext = new DatabaseContext())
                {
                    foreach (var key in lastPositions.Keys)
                    {
                        Vehicle v = key.Entity<Vehicle>();
                        if (!v.HasSharedData("drivenDistance")) continue;

                        ServerVehicle sVeh = VehicleManager.GetServerVehicleFromVehicle(v, dbContext);

                        if (sVeh == null) continue;

                        sVeh.DistanceDriven = (float)v.GetSharedData("drivenDistance");

                    }
                    dbContext.SaveChanges();
                }
            }
        }

        public static void AddVehicle(ServerVehicle serverVehicle, Vehicle vehicle)
        {
            if (_serverVehicles.ContainsKey(serverVehicle.Id))
            {
                return;
            }

            if (_serverVehicles.ContainsValue(vehicle.Handle))
            {
                return;
            }

            _serverVehicles[serverVehicle.Id] = vehicle.Handle;
        }
        internal static void DeleteVehicle(Vehicle veh)
        {
            ServerVehicle sVeh;
            if ((sVeh = GetServerVehicleFromVehicle(veh)) != null)
            {
                _serverVehicles.Remove(sVeh.Id);
            }

            veh.Delete();
        }

        public static Vehicle GetVehicleFromHandle(NetHandle handle)
        {
            return NAPI.Pools.GetAllVehicles().Find(v => v.Handle == handle);
        }

        public static Vehicle GetVehicleFromId(int id)
        {
            return NAPI.Pools.GetAllVehicles().Find(v => v.Handle.Value == id);
        }

        public static Vehicle GetVehicleFromServerVehicle(ServerVehicle serverVehicle)
        {
            if (!_serverVehicles.ContainsKey(serverVehicle.Id))
            {
                return null;
            }

            return GetVehicleFromHandle(_serverVehicles[serverVehicle.Id]);
        }

        public static ServerVehicle GetServerVehicleFromVehicle(Vehicle veh, DatabaseContext dbContext = null)
        {
            dbContext = dbContext ?? new DatabaseContext();

            foreach (KeyValuePair<int, NetHandle> pair in _serverVehicles)
            {
                if (pair.Value == veh.Handle)
                {
                    return dbContext.ServerVehicles.Find(pair.Key);
                }
            }

            return null;
        }

        public static bool IsValidHash(uint hash)
        {
            foreach (VehicleHash vh in Enum.GetValues(typeof(VehicleHash)))
            {
                if ((uint)vh == hash) return true;
            }

            foreach (string mod in _enabledMods)
            {
                if (NAPI.Util.GetHashKey(mod) == hash) return true;
            }

            return false;
        }
    }
}