//#define _DIFFICULTYDEBUG

using System.Collections;
using System.Collections.Generic;
using UnityEngine;


public class DifficultyEstablisher : MonoBehaviour
{
    DungeonGen dung;

    [Header("Difficulty Rates")]
    [Space(5)]
    public bool smartEdit = false;
    [Range(0, 100)]
    public float easyRate = 0;
    float easyRateOriginal;
    [Range(0, 100)]
    public float mediumRate = 0;
    float mediumRateOriginal;
    [Range(0, 100)]
    public float hardRate = 0;
    float hardRateOriginal;

    [Header("Difficulty pity progress")]
    [Space(5)]
    public float easyPityProgress = 0;
    public float mediumPityProgress = 0;
    public float hardPityProgress = 0;

    [Space(10)]
    [MinMaxCustomSlider]
    public ValueRange mediumRoomsMargin;

    [Space(10)]
    [MinMaxCustomSlider]
    public ValueRange hardRoomsMargin;

    //Room amount
    [SerializeField]
    List<GameObject> easyRooms;
    [SerializeField]
    List<GameObject> medRooms;
    [SerializeField]
    List<GameObject> hardRooms;

    private void OnValidate()
    {
        if (smartEdit)
        {
            float totalRate = easyRate + mediumRate + hardRate;
            if (totalRate != 100)
            {
                easyRate = (easyRate * 100) / (totalRate);
                mediumRate = (mediumRate * 100) / (totalRate);
                hardRate = (hardRate * 100) / (totalRate);
            }
        }

        #region MinMaxSlider to int
        mediumRoomsMargin.MaxValue = Mathf.Round(mediumRoomsMargin.MaxValue);
        mediumRoomsMargin.MinValue = Mathf.Round(mediumRoomsMargin.MinValue);

        mediumRoomsMargin.MaxLimit = Mathf.Round(mediumRoomsMargin.MaxLimit);
        mediumRoomsMargin.MinLimit = Mathf.Round(mediumRoomsMargin.MinLimit);

        hardRoomsMargin.MaxValue = Mathf.Round(hardRoomsMargin.MaxValue);
        hardRoomsMargin.MinValue = Mathf.Round(hardRoomsMargin.MinValue);

        hardRoomsMargin.MaxLimit = Mathf.Round(hardRoomsMargin.MaxLimit);
        hardRoomsMargin.MinLimit = Mathf.Round(hardRoomsMargin.MinLimit);
        #endregion

        mediumRoomsMargin.Name = "Medium room limits";
        hardRoomsMargin.Name = "Hard room limits";
    }

    public static DifficultyEstablisher instance;
    private void Awake()
    {
        instance = this;
        dung = GetComponent<DungeonGen>();

        easyRateOriginal = easyRate;
        mediumRateOriginal = mediumRate;
        hardRateOriginal = hardRate;

        easyRooms = new List<GameObject>();
        medRooms = new List<GameObject>();
        hardRooms = new List<GameObject>();

    }

    [ContextMenu("Progress Med")]
    private void ProgressMediumRate()
    {
        mediumRate += mediumPityProgress * Utils.difficultyFormula(GameMaster.Instance.LevelNumber, GameMaster.Instance.Difficulty);
        easyRate = 100 - mediumRate - hardRate;

    }

    [ContextMenu("Progress Hard")]
    private void ProgressHardRate()
    {
        hardRate += hardPityProgress * Utils.difficultyFormula(GameMaster.Instance.LevelNumber, GameMaster.Instance.Difficulty);
        easyRate = 100 - mediumRate - hardRate;
    }

    Difficulty getRandomDifficulty()
    {
        float rate = Random.value;
        if (rate <= easyRate / 100)
        {
            ProgressMediumRate();
            ProgressHardRate();
            return Difficulty.Easy;
        }
        else if (rate <= (mediumRate / 100 + easyRate / 100))
        {
            mediumRate = mediumRateOriginal;
            ProgressHardRate();

            //if (medRooms >= mediumRoomsMargin.MaxValue)
            //{
            //    mediumRate = 0;
            //    float totalRate = easyRate + hardRooms >= hardRoomsMargin.MaxValue ? 0 : hardRooms;
            //    easyRate = (easyRate * 100) / (totalRate);

            //    if (hardRooms < hardRoomsMargin.MaxValue)
            //        hardRate = (hardRate * 100) / (totalRate);

            //}            
            return Difficulty.Medium;
        }
        else
        {
            hardRate = hardRateOriginal;
            ProgressMediumRate();

            //if (hardRooms >= hardRoomsMargin.MaxValue)
            //{
            //    hardRate = 0;
            //    float totalRate = easyRate + medRooms >= mediumRoomsMargin.MaxValue ? 0 : medRooms;
            //    easyRate = (easyRate * 100) / (totalRate);

            //    if(medRooms < mediumRoomsMargin.MaxValue)
            //        mediumRate = (mediumRate * 100) / (totalRate);

            //}
            return Difficulty.Hard;
        }
    }

    void setDungeonDifficulty()
    {

        foreach (GameObject r in dung.Dungeon)
        {
            Room localRoom = r.GetComponent<Room>();

            if (localRoom.Difficulty == Difficulty.None)
            {
                localRoom.debugDiff.easyRate = easyRate;
                localRoom.debugDiff.mediumRate = mediumRate;
                localRoom.debugDiff.hardRate = hardRate;
                localRoom.debugDiff.hardEstablished = false;

                localRoom.Difficulty = getRandomDifficulty();
                switch (localRoom.Difficulty)
                {
                    case Difficulty.Easy:
                        easyRooms.Add(r);
                        break;
                    case Difficulty.Medium:
                        medRooms.Add(r);
                        break;
                    case Difficulty.Hard:
                        hardRooms.Add(r);
                        break;
                }
            }
        }

#if _DIFFICULTYDEBUG
        Utils.Print("Difficulty scalar: " + Utils.difficultyFormula(GameMaster.Instance.LevelNumber, GameMaster.Instance.Difficulty));

        Utils.Print("Before:");
        Utils.Print("Easy rooms: " + easyRooms.Count);
        Utils.Print("Medium rooms: " + medRooms.Count);
        Utils.Print("Hard rooms: " + hardRooms.Count);
#endif
        //Medium rooms margin fix
        if (medRooms.Count<mediumRoomsMargin.MinValue)
        {
            int difference = (int)mediumRoomsMargin.MinValue - medRooms.Count;
            for (int i=0; i<difference; ++i)
            {
                GameObject transferedObject = easyRooms[Random.Range(0, Mathf.Max(easyRooms.Count - 1, 0))];
                transferedObject.GetComponent<Room>().Difficulty = Difficulty.Medium;
                transferedObject.GetComponent<Room>().debugDiff.hardEstablished = true;
                medRooms.Add(transferedObject);
                easyRooms.Remove(transferedObject);
            }
        }
        else if(medRooms.Count > mediumRoomsMargin.MaxValue)
        {
            int difference = medRooms.Count - (int)mediumRoomsMargin.MaxValue;
            for (int i = 0; i < difference; ++i)
            {                
                GameObject transferedObject = medRooms[Random.Range(0, Mathf.Max(medRooms.Count - 1, 0))];
                transferedObject.GetComponent<Room>().Difficulty = Difficulty.Easy;
                transferedObject.GetComponent<Room>().debugDiff.hardEstablished = true;
                easyRooms.Add(transferedObject);
                medRooms.Remove(transferedObject);
            }
        }

        //Hard rooms margin fix
        if (hardRooms.Count < hardRoomsMargin.MinValue)
        {
            int difference = (int)hardRoomsMargin.MinValue - hardRooms.Count;
            for (int i = 0; i < difference; ++i)
            {
                GameObject transferedObject = easyRooms[Random.Range(0, Mathf.Max(easyRooms.Count - 1, 0))];
                transferedObject.GetComponent<Room>().Difficulty = Difficulty.Hard;
                transferedObject.GetComponent<Room>().debugDiff.hardEstablished = true;
                hardRooms.Add(transferedObject);
                easyRooms.Remove(transferedObject);
            }
        }
        else if (hardRooms.Count > hardRoomsMargin.MaxValue)
        {
            int difference = hardRooms.Count - (int)hardRoomsMargin.MaxValue;
            for (int i = 0; i < difference; ++i)
            {
                GameObject transferedObject = hardRooms[Random.Range(0, Mathf.Max(hardRooms.Count - 1, 0))];
                transferedObject.GetComponent<Room>().Difficulty = Difficulty.Easy;
                transferedObject.GetComponent<Room>().debugDiff.hardEstablished = true;
                easyRooms.Add(transferedObject);
                hardRooms.Remove(transferedObject);
            }
        }

#if _DIFFICULTYDEBUG
        Utils.Print("After:");
        Utils.Print("Easy rooms: " + easyRooms.Count);
        Utils.Print("Medium rooms: " + medRooms.Count);
        Utils.Print("Hard rooms: " + hardRooms.Count);
#endif

        easyRate = easyRateOriginal;
        mediumRate = mediumRateOriginal;
        hardRate = hardRateOriginal;
    }

    public void SetDifficulty()
    {
        //Invoke(nameof(setDungeonDifficulty), 0.2f);
        setDungeonDifficulty();
    }
}