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

public class PlayerSkillTree
{

    private static PlayerSkillTree _instance;
    private PotionHandler potionHandler;

    public static PlayerSkillTree Instance
    {
        get
        {
            if (_instance == null)
            {
                _instance = new PlayerSkillTree();
            }
            return _instance;
        }
    }


    public enum Skills
    {
        Dash,
        Reflection1,
        Reflection2,
        Shockwave,
        Spin, 
        Potion,
        Arrows1,
        Arrows2
    }

    private List<Skills> playerSkills;

    public PlayerSkillTree()
    {
        playerSkills = new List<Skills>();
        potionHandler = new PotionHandler();
    }

    public void UnlockSkill(Skills skill, PotionHandler.PotionType potionType)
    {

        if(skill == Skills.Potion){
            potionHandler.AddPotion(potionType);
            return;
        }

        if (playerSkills.Contains(skill)) return;

        playerSkills.Add(skill);
    }

    public bool TryUsePotion(PotionHandler.PotionType potionType)
    {
        if(potionHandler.IsEmpty(potionType)) return false;
        return potionHandler.UsePotion(potionType);
    }


    public bool IsSkillUnlocked(Skills skill)
    {
        return playerSkills.Contains(skill);
    }

    public List<Skills> GetPlayerSkills() { return playerSkills; }


}