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

[System.Serializable]
public class Level
{
    public int currentLevel;

    public UnityEvent OnLevelUpEvent = new UnityEvent();
    public UnityEvent OnExperienceChanged = new UnityEvent();

    protected float currentExperience;
    public float GetCurrentExperience()
    {
        return currentExperience;
    }

    public float FinalExperienceThreshold;

    public Level()
    {
        currentLevel = 1;
        currentExperience = 0f;
        //baseExperienceThreshold = 500f;
        OnLevelUpEvent.AddListener(UpdateExperienceThreshold);
        UpdateExperienceThreshold();
    }
    public Level(int currentLevel, float currentExperience)
    {
        this.currentLevel = currentLevel;
        this.currentExperience = currentExperience;

        OnLevelUpEvent.AddListener(UpdateExperienceThreshold);
        UpdateExperienceThreshold();
    }

    public void GainExperience(float xpIncome)
    {
        currentExperience += xpIncome * (1 + GameConstants.GameBalancing.ReputationLevelIntoIncreasedExperienceMultiplier * PlayerDataHandler.Instance.LoadPlayerAccountData(PlayerDataHandler.Instance.currentPlayerName.Value).currentReputationLevel);
        if (currentExperience >= FinalExperienceThreshold)
        {
            currentExperience -= FinalExperienceThreshold;
            currentLevel++;
            OnLevelUpEvent.Invoke();
            //Debug.Log("LevelUp Event Trigger");
        }
        //Debug.Log(xpIncome + " exp received");
        //Debug.Log(currentExperience + " / " + FinalExperienceThreshold);
        if (currentExperience >= FinalExperienceThreshold)
        {
            GainExperience(0);
        }
        OnExperienceChanged.Invoke();
    }

    public virtual void UpdateExperienceThreshold()
    {
        FinalExperienceThreshold = Mathf.RoundToInt(GameConstants.CharacterBalancing.BaseExperienceThreshold + GameConstants.CharacterBalancing.ExperienceThresholdGrowth * Mathf.Pow((float)currentLevel, GameConstants.CharacterBalancing.ExperienceThresholdGrowthPerLevelExponent));
    }

}


[System.Serializable]
public class ReputationLevel : Level
{
    public ReputationLevel() : base()
    {
        currentLevel = 0;
        currentExperience = 0f;
    }

    public ReputationLevel(int currentLevel, float currentExperience) : base(currentLevel, currentExperience)
    {
        this.currentLevel = currentLevel;
        this.currentExperience = currentExperience;
    }

    public override void UpdateExperienceThreshold()
    {
        FinalExperienceThreshold = Mathf.RoundToInt(GameConstants.CharacterBalancing.BaseReputationExperienceThreshold + GameConstants.CharacterBalancing.ReputationExperienceThresholdGrowth * Mathf.Pow((float)currentLevel, GameConstants.CharacterBalancing.ReputationExperienceThresholdGrowthPerLevelExponent));
    }
}