using System;
using System.Collections.Generic;
using Server.Mobiles;
using Server.Targeting;

namespace Server.Engines.Craft
{
  public class Recipe
  {
    private TextDefinition m_TD;

    public Recipe(int id, CraftSystem system, CraftItem item)
    {
      ID = id;
      CraftSystem = system;
      CraftItem = item;

      if (Recipes.ContainsKey(id))
        throw new Exception("Attempting to create recipe with preexisting ID.");

      Recipes.Add(id, this);
      LargestRecipeID = Math.Max(id, LargestRecipeID);
    }


    public static Dictionary<int, Recipe> Recipes{ get; } = new Dictionary<int, Recipe>();

    public static int LargestRecipeID{ get; private set; }

    public CraftSystem CraftSystem{ get; set; }

    public CraftItem CraftItem{ get; set; }

    public int ID{ get; }

    public TextDefinition TextDefinition => m_TD ?? (m_TD = new TextDefinition(CraftItem.NameNumber, CraftItem.NameString));

    public static void Initialize()
    {
      CommandSystem.Register("LearnAllRecipes", AccessLevel.GameMaster, LearnAllRecipes_OnCommand);
      CommandSystem.Register("ForgetAllRecipes", AccessLevel.GameMaster, ForgetAllRecipes_OnCommand);
    }

    [Usage("LearnAllRecipes")]
    [Description("Teaches a player all available recipes.")]
    private static void LearnAllRecipes_OnCommand(CommandEventArgs e)
    {
      Mobile m = e.Mobile;
      m.SendMessage("Target a player to teach them all of the recipes.");

      m.BeginTarget(-1, false, TargetFlags.None, delegate(Mobile from, object targeted)
      {
        if (targeted is PlayerMobile mobile)
        {
          foreach (KeyValuePair<int, Recipe> kvp in Recipes)
            mobile.AcquireRecipe(kvp.Key);

          m.SendMessage("You teach them all of the recipes.");
        }
        else
        {
          m.SendMessage("That is not a player!");
        }
      });
    }

    [Usage("ForgetAllRecipes")]
    [Description("Makes a player forget all the recipes they've learned.")]
    private static void ForgetAllRecipes_OnCommand(CommandEventArgs e)
    {
      Mobile m = e.Mobile;
      m.SendMessage("Target a player to have them forget all of the recipes they've learned.");

      m.BeginTarget(-1, false, TargetFlags.None, delegate(Mobile from, object targeted)
      {
        if (targeted is PlayerMobile mobile)
        {
          mobile.ResetRecipes();

          m.SendMessage("They forget all their recipes.");
        }
        else
        {
          m.SendMessage("That is not a player!");
        }
      });
    }
  }
}