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

public class Knowledge : MonoBehaviour
{
    [SerializeField] private FloatVariable scriptableKnowledgeLevel;
    [SerializeField] private float baseKnowledgeThreshold = 500f;
    [SerializeField] private float KnowledgeThresholdGrowth = 100f;
    [SerializeField] private float exponent = 1.5f;
    
    [Space]

    public GameEventFloat OnKnowledgeLevelUp;
    public GameEventFloat OnKnowledgeChanged;

    private float currentKnowledgeValue;
    private int currentKnowledgeLevel;

    float finalKnowledgeThreshold;

    private void Start()
    {
        currentKnowledgeLevel = 1;
        currentKnowledgeValue = 0f;
        scriptableKnowledgeLevel.Value = currentKnowledgeLevel;

        finalKnowledgeThreshold = baseKnowledgeThreshold + currentKnowledgeLevel * KnowledgeThresholdGrowth * exponent;
    }

    public void ChangeKnowledgeValue(float amount)
    {
        currentKnowledgeValue += amount;
        if(amount != 0)
        {
            OnKnowledgeChanged.Raise(amount);
        }
        if(currentKnowledgeValue >= finalKnowledgeThreshold)
        {
            currentKnowledgeValue -= finalKnowledgeThreshold;
            currentKnowledgeLevel++;
            OnKnowledgeLevelUp.Raise(currentKnowledgeLevel);
        }
        if(currentKnowledgeValue >= finalKnowledgeThreshold)
        {
            ChangeKnowledgeValue(0);
        }
        Debug.Log(amount + " knowledge gained.");
        Debug.Log(currentKnowledgeValue + " / " + finalKnowledgeThreshold);
    }

    public void UpdateThreshold(float level)
    {
        finalKnowledgeThreshold = baseKnowledgeThreshold + level * KnowledgeThresholdGrowth * exponent;
    }
    public void UpdateScriptableLevel(float level)
    {
        scriptableKnowledgeLevel.Value = level;
    }
}