using System;
using System.Collections.Generic;
using System.Linq;
using GTANetworkAPI;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
using ReallifeGamemode.Database.Entities;
using ReallifeGamemode.Database.Models;
using ReallifeGamemode.Server.Admin;
using ReallifeGamemode.Server.Inventory.Interfaces;
using ReallifeGamemode.Server.Log;
using ReallifeGamemode.Server.Managers;
using ReallifeGamemode.Server.Services;
using ReallifeGamemode.Server.Types;
using ReallifeGamemode.Server.Util;

/**
* @overview Life of German Reallife - Player Extension (PlayerExtension.cs)
* @author hydrant, Siga, aviate
* @copyright (c) 2008 - 2018 Life of German
*/

namespace ReallifeGamemode.Server.Extensions
{
  public static class PlayerExtension
  {
    private static ILogger Logger => LogManager.GetLogger(typeof(PlayerExtension));

    /// <summary>
    /// Gibt das User-Objekt eines Player's zurück.
    /// Gibt nichts zurück, wenn der Player nicht eingeloggt ist
    /// </summary>
    /// <param name="client">Der Player, dessen User man bekommen möchte</param>
    /// <param name="context">Ein eventuell vorhandener Datenbank-Context, falls man Änderungen in der Datenbank vornehmen will</param>
    /// <returns></returns>
    public static User GetUser(this Player client, DatabaseContext context = null)
    {
      if (!client.IsLoggedIn()) return null;

      context = context ?? new DatabaseContext();
      return context
          .Users
          .Include(u => u.Faction)
            .ThenInclude(f => f.BankAccount)
          .Include(u => u.FactionRank)
          .Include(u => u.Group)
          .Include(u => u.House)
          .Include(u => u.BankAccount)
          .Where(u => u.Name == client.Name)
          .FirstOrDefault();
    }

    public static Character GetCharacter(this User user, DatabaseContext context = null)
    {
      if (context == null)
      {
        using (context = new DatabaseContext())
        {
          return context.Characters.FirstOrDefault(u => u.Id == user.CharacterId);
        }
      }
      else
      {
        return context.Characters.FirstOrDefault(u => u.Id == user.CharacterId);
      }
    }

    public static void SafeTeleport(this Player player, Vector3 position, float heading = 0, bool spawn = false)
    {
      AntiCheat.NoTpAntiCheatForPlayer(player.Name);
      if (spawn)
      {
        AntiCheat.NoHealthAntiCheatForPlayer(player.Name);
        NAPI.Player.SpawnPlayer(player, position, heading);
      }
      else
      {
        player.Position = position;
        player.Heading = heading;
      }
    }

    public static void SafeSetHealth(this Player player, int health)
    {
      AntiCheat.NoHealthAntiCheatForPlayer(player.Name);
      player.Health = health;
    }

    public static void SafeSetArmor(this Player player, int armor)
    {
      AntiCheat.NoHealthAntiCheatForPlayer(player.Name);
      player.Armor = armor;
    }

    public static void SetJailTime(this User user, bool killed, DatabaseContext dbContext)
    {
      if (user == null)
      {
        return;
      }

      int time = 18 * user.Wanteds;
      if (killed)
      {
        time *= 2;
      }

      var lostItems = InventoryManager.RemoveIllegalItemsFromInventory(user.Player);
      if (lostItems.Any())
      {
        Logger.LogInformation("Player {0} lost the following items when sent to prison: " + string.Join(", ", lostItems.Select(i =>
        {
          IItem item = InventoryManager.GetItemById(i.ItemId);
          return $"{item.Name} ({item.Id}, amount: {i.Amount})";
        })));
      }
      var illegalItemsPrice = lostItems.Select(i =>
      {
        IIllegalItem item = (IIllegalItem)InventoryManager.GetItemById(i.ItemId);
        return item.PriceForConfiscation * i.Amount;
      }).Sum();

      int wantedMoney = user.Wanteds * 25;
      int factionMoney = wantedMoney + illegalItemsPrice;
      var executiveFactions = dbContext.Factions.Include(f => f.BankAccount).Where(f => f.Id == 1 || f.Id == 3);
      foreach (var faction in executiveFactions)
      {
        faction.BankAccount.Balance += factionMoney;
      }

      Logger.LogInformation("Player {0} was sent to jail for {1} seconds, executive factions got {2} dollars each (wanteds: {3}, illegal items: {4})", user.Name, time, factionMoney, wantedMoney, illegalItemsPrice);

      user.Wanteds = 0;
      user.JailTime = time;
    }

    public static void AnnouncePlayerJailedIn(this User user)
    {
      if (user == null)
      {
        return;
      }
      string message = user.Name + " wurde ins Gefängnis geliefert";

      ChatService.HQMessage(message);
    }

    /// <summary>
    /// Gibt zurück, ob ein Player eingeloggt ist
    /// </summary>
    /// <param name="player">Der Player, dessen Login-Status man bekommen möchte</param>
    /// <returns></returns>
    public static bool IsLoggedIn(this Player player)
    {
      if (player == null)
      {
        return false;
      }

      return player.HasData("isLoggedIn") ? player.GetData<bool>("isLoggedIn") : false;
    }

    public static bool IsDuty(this Player player)
    {
      return player.GetServerData("duty", false);
    }

    public static bool IsAfk(this Player player)
    {
      if (!player.HasSharedData("isAfk"))
      {
        return false;
      }

      return player.GetSharedData<bool>("isAfk");
    }

    public static bool IsAlive(this Player player)
    {
      return !player.HasData("isDead") || player.GetData<bool>("isDead") == false;
    }

    public static T GetServerData<T>(this Player player, string key, T defaultValue = default)
    {
      if (player == null)
      {
        return default;
      }

      key += "data_";
      if (!player.HasData(key)) return defaultValue;
      return JsonConvert.DeserializeObject<T>(player.GetData<dynamic>(key));
    }

    public static void SetServerData(this Player player, string key, object value)
    {
      if (player == null)
      {
        return;
      }

      key += "data_";
      player.SetData(key, JsonConvert.SerializeObject(value));
    }

    public static bool IsAdminDuty(this Player player)
    {
      return player.HasData("Adminduty") ? player.GetData<bool>("Adminduty") : false;
    }

    public static bool IsTSupport(this Player player)
    {
      return player.HasData("SAdminduty") ? player.GetData<bool>("SAdminduty") : false;
    }

    public static Vector3 GetPositionFromPlayer(Player player, float distance, int offset = 0)
    {
      var pos = player.Position;
      var a = player.Heading + offset;
      var rad = a * Math.PI / 180;
      var newpos = new Vector3(pos.X + (distance * Math.Sin(-rad)),
          pos.Y + (distance * Math.Cos(-rad)),
          pos.Z);
      return newpos;
    }

    internal static T GetData<T>(this User user, string key, T nullValue)
    {
      return user.Player.GetServerData(key, nullValue);
    }

    internal static T GetData<T>(this User user, string key) => user.GetData<T>(key, default);

    internal static void SetData(this User user, string key, object value)
    {
      user.Player.SetServerData(key, value);
    }

    internal static void GiveWanteds(this User user, Player cop, int amount, string reason)
    {
      int newWanteds = user.Wanteds + amount;
      if (newWanteds > 50)
      {
        ChatService.ErrorMessage(cop, "Die Wanteds dürfen ein Limit von 50 nicht überschreiten");
        newWanteds = 50;
      }

      using (var dbContext = new DatabaseContext())
      {
        User dbUser = dbContext.Users.Where(u => u.Id == user.Id).FirstOrDefault();
        dbUser.Wanteds = newWanteds;
        dbUser.SetBlipAndNametagColor();
        dbContext.SaveChanges();
      }
      user.Player.TriggerEvent("BN_ShowWithPicture", "Straftat", cop != null ? "Officer " + cop.Name + "" : "LSPD", "Du hast ein Verbrechen begangen: " + reason + " (" + newWanteds + ")", "DIA_POLICE", 1, true, 6);

      foreach (var copPlayer in NAPI.Pools.GetAllPlayers())
      {
        if (copPlayer == null)
        {
          continue;
        }

        User copUser = copPlayer.GetUser();
        if (copUser == null)
        {
          continue;
        }

        if (cop != null && (copUser.FactionId == 1 || copUser.FactionId == 3))
        {
          ChatService.SendMessage(copPlayer, "!{#8181E9}HQ: Straftat gemeldet von " + cop.Name + " mit Fahndungslevel " + amount + ". Straftäter: " + user.Name + ".");
          ChatService.SendMessage(copPlayer, "!{#8181E9}HQ: Grund: " + reason + ".");
          ChatService.SendMessage(copPlayer, "!{#8181E9}HQ: Der Straftäter: " + user.Name + " wird nun mit Fahndungslevel " + newWanteds + " gesucht.");
        }
        else if ((copUser.FactionId == 1 || copUser.FactionId == 3) && cop == null)
        {
          ChatService.SendMessage(copPlayer, "!{#8181E9}HQ: " + user.Name + " hat eine Straftat begangen. Grund: " + reason + ".");
          ChatService.SendMessage(copPlayer, "!{#8181E9}HQ: Der Straftäter: " + user.Name + " wird nun mit Fahndungslevel " + newWanteds + " gesucht.");
        }
      }
    }

    public static FactionRank GetFactionRank(this User user)
    {
      using (var dbContext = new DatabaseContext())
      {
        FactionRank toReturn = dbContext.FactionRanks.FirstOrDefault(fR => fR.Id == user.FactionRankId);
        if (toReturn == null)
        {
          toReturn = dbContext.FactionRanks.OrderBy(f => f.Order).FirstOrDefault(f => f.FactionId == user.FactionId);
        }

        if (toReturn == null)
        {
          toReturn = new FactionRank
          {
            RankName = "Rang-Fehler"
          };
        }

        return toReturn;
      }
    }

    public static void BanPlayer(this User user, Player admin, string reason, int mins)
    {
      using (var banUserContext = new DatabaseContext())
      {
        int unixTimestamp = (int)(DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1))).TotalSeconds;
        Ban banUser;

        if (mins == 0)
        {
          ChatService.Broadcast("!{#FF4040}[BAN] ~w~" + user.Name + " wurde von " + admin.Name + " permanent gebannt (Grund: " + reason + ").");
          banUser = new Ban { UserId = user.Id, Reason = reason, BannedBy = admin.Name, Applied = unixTimestamp, UntilDateTime = unixTimestamp };

          user.Player?.Kick();

          mins--;
        }
        else
        {
          ChatService.Broadcast("!{#FF4040}[BAN] ~w~" + user.Name + " wurde von " + admin.Name + " für " + mins + " Minute(n) gebannt (Grund: " + reason + ").");
          banUser = new Ban { UserId = user.Id, Reason = reason, BannedBy = admin.Name, Applied = unixTimestamp, UntilDateTime = unixTimestamp + mins * 60 };
          user.Player?.Kick();
        }

        banUserContext.Bans.Add(banUser);
        banUserContext.SaveChanges();

        var targetUser = banUserContext.Users.Where(u => u.Name == user.Name).FirstOrDefault();
        targetUser.BanId = banUser.Id;
        banUserContext.SaveChanges();
      }
    }

    public static void UnbanPlayer(this User user)
    {
      using (var unbanUser = new DatabaseContext())
      {
        var targetUser = unbanUser.Users.Where(u => u.Id == user.Id).FirstOrDefault();
        targetUser.BanId = null;
        unbanUser.SaveChanges();
      }
    }

    public static List<UserItem> GetItems(this User user)
    {
      using (var dbContext = new DatabaseContext())
      {
        return dbContext.UserItems.Where(u => u.UserId == user.Id).ToList();
      }
    }

    public static bool IsAdmin(this User user, AdminLevel adminLevel)
    {
      if (user == null)
      {
        return false;
      }
      return user.AdminLevel >= adminLevel;
    }

    public static void SetBlipAndNametagColor(this User user)
    {
      if (user == null)
      {
        return;
      }

      int blipColor = 0;
      int nameTagColor = 0;

      Player player = user.Player;
      if (player == null || !player.IsLoggedIn())
      {
        return;
      }

      bool duty = user.GetData<bool>("duty");
      bool adminUnshow = player.GetData<bool>("adminUnshow");

      if (adminUnshow)
      {
        blipColor = -1;
        nameTagColor = -3;
      }
      else if (player.GetData<bool>("SAdminduty"))
      {
        blipColor = 30;
        nameTagColor = -2;
      }
      else if (user.Wanteds > 0)
      {
        nameTagColor = -1;
        blipColor = 64;
      }
      else if (user.FactionId != null)
      {
        if (user.FactionId > 3 || (user.FactionId >= 1 && user.FactionId <= 3 && duty))
        {
          nameTagColor = user.FactionId.Value;
        }

        switch (user.FactionId)
        {
          case 1 when duty:
            blipColor = 38;
            break;

          case 2 when duty:
            blipColor = 6;
            break;

          case 3 when duty:
            blipColor = 63;
            break;

          case 4:
            break;

          case 5:
            blipColor = 33;
            break;

          case 6:
            break;

          case 7:
            blipColor = 52;
            break;

          case 8:
            blipColor = 83;
            break;

          case 9:
            blipColor = 25;
            break;
        }
      }

      user.Player.SetSharedData("nameTagColor", nameTagColor);
      user.Player.SetSharedData("blipColor", blipColor);
    }

    public static void SetInFrontOf(this Player player, Entity entity)
    {
      player.TriggerEvent("SERVER:SetInFrontPosition", entity);
    }

    public static void CuffPlayer(this Player player, Player nearestCuffPlayer)
    {
      nearestCuffPlayer.SetInFrontOf(player);
      nearestCuffPlayer.Heading = player.Heading;

      if (!nearestCuffPlayer.HasAnimation("Cuffed"))
      {
        player.SyncAnimation("doArrest");
        nearestCuffPlayer.SyncAnimation(new List<string>() { "getArrest", "Cuffed" });
        nearestCuffPlayer.AddAttachment("handcuffs", false);
        nearestCuffPlayer.RemoveAllWeapons();
      }
      else
      {
        nearestCuffPlayer.AddAttachment("handcuffs", true);
        player.SyncAnimation("doUncuff");
        nearestCuffPlayer.SyncAnimation("getUncuff");
        PositionManager.cuffPoints.Remove(nearestCuffPlayer);
      }
    }

    public static void CheckToggleSurrender(this Player player)
    {
      player.TriggerEvent("SERVER:Handsup_CheckIfPlayerCanHandsup");
    }

    public static void ToggleSurrender(this Player player)
    {
      if (player.HasAnimation("hup"))
      {
        PositionManager.cuffPoints.Remove(player);
        player.ClearAnimation();
        return;
      }
      if (player.HasAnimation())
        return;

      player.SyncAnimation("hup");
      NAPI.Player.SetPlayerCurrentWeapon(player, WeaponHash.Unarmed);

      if (player.GetUser().Wanteds > 0)
        PositionManager.cuffPoints.Add(player);
    }

    public static void ToggleInventory(this Player player, InventoryToggleOption option = InventoryToggleOption.TOGGLE)
    {
      if (option == InventoryToggleOption.TOGGLE)
      {
        player.TriggerEvent("inventoryShow");
      }
      else
      {
        player.TriggerEvent("inventoryShow", option == InventoryToggleOption.SHOW);
      }
    }
  }
}