package me.km.environment;

import java.util.HashMap;
import java.util.UUID;
import me.km.effects.Effect;
import me.km.effects.EffectUtils;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.EnumSkyBlock;
import net.minecraft.world.World;

public class EnvironmentAPI 
{
    private static HashMap<UUID, Integer> thirst;
    private static HashMap<UUID, Integer> energy;
    private static HashMap<UUID, Integer> cold;
    private static HashMap<UUID, Integer> mana;
    
    public static void initStatusAPI()
    {
        thirst = new HashMap<>();
        energy = new HashMap<>();
        cold = new HashMap<>();
        mana = new HashMap<>();
    }

    // ---------------------------------
    // Allgemein
    // ---------------------------------
    
    private static void changeStat(HashMap<UUID, Integer> map, int limit, EntityPlayer p, int amount)
    {
        Integer i = map.get(p.getUniqueID());
        if(i == null)
        {
            i = limit;
        }
        i += amount;
        if(i < 0)
        {
            i = 0;
        }
        else if(i > limit)
        {
            i = limit;
        }
        map.put(p.getUniqueID(), i);
    }
    
    private static void resetStat(HashMap<UUID, Integer> map, int limit, EntityPlayer p)
    {
        map.put(p.getUniqueID(), limit);
    }
    
    private static int getStat(HashMap<UUID, Integer> map, int limit, EntityPlayer p)
    {
        Integer i = map.get(p.getUniqueID());
        if(i == null)
        {
            map.put(p.getUniqueID(), limit);
            return limit;
        }
        return i;
    }
    
    // ---------------------------------
    // Durst
    // ---------------------------------
    
    private final static int THIRST = 10000;
    
    public static void changeThirst(EntityPlayer p, int amount)
    {
        if(amount < 0)
        {
            amount /= EffectUtils.getEffectLevel(p, Effect.LESS_THIRST) + 1;
        }
        changeStat(thirst, THIRST, p, amount);
    }
    
    public static void resetThirst(EntityPlayer p)
    {
        resetStat(thirst, THIRST, p);
    }
    
    public static int getThirst(EntityPlayer p)
    {
        return getStat(thirst, THIRST, p);
    }
    
    // ---------------------------------
    // Energie
    // ---------------------------------
    
    private final static int ENERGY = 10000;
    
    public static void changeEnergy(EntityPlayer p, int amount)
    {
        if(amount < 0)
        {
            amount /= EffectUtils.getEffectLevel(p, Effect.LESS_ENERGY_USE) + 1;
        }
        changeStat(energy, ENERGY, p, amount);
    }
    
    public static void resetEnergy(EntityPlayer p)
    {
        resetStat(energy, ENERGY, p);
    }
    
    public static int getEnergy(EntityPlayer p)
    {
        return getStat(energy, ENERGY, p);
    }
    
    // ---------------------------------
    // Kälte
    // ---------------------------------
    
    private final static int COLD = 100;
    
    public static void changeCold(EntityPlayer p, int amount)
    {
        if(amount < 0)
        {
            amount += EffectUtils.getEffectLevel(p, Effect.LESS_COLD) * 2;
        }
        changeStat(cold, COLD, p, amount);
    }
    
    public static void resetCold(EntityPlayer p)
    {
        resetStat(cold, COLD, p);
    }
    
    public static int getCold(EntityPlayer p)
    {
        return getStat(cold, COLD, p);
    }
    
    // ---------------------------------
    // Mana
    // ---------------------------------
    
    private final static int MANA = 100;
    
    public static void changeMana(EntityPlayer p, int amount)
    {
        if(amount > 0)
        {
            amount += EffectUtils.getEffectLevel(p, Effect.FASTER_MANA) * 2;
        }
        changeStat(mana, MANA, p, amount);
    }
    
    public static void resetMana(EntityPlayer p)
    {
        resetStat(mana, MANA, p);
    }
    
    public static int getMana(EntityPlayer p)
    {
        return getStat(mana, MANA, p);
    }
    
    // ---------------------------------
    // Temperatur
    // ---------------------------------
    
    public static int getTemperature(World w, BlockPos pos)
    {
        double d = w.getBiome(pos).getTemperature();
        d -= (((pos.getY() - 65) * 0.05) / 30) + 0.3;
        d += (w.getLightFromNeighbors(pos) * 0.3) / 15;
        try
        {
            d += (w.getLightFor(EnumSkyBlock.BLOCK, pos) * 0.3) / 15;      
        }
        catch(Exception ex)
        {           
        }
        return (int) (-7.08578 * Math.pow(d, 2) + 37.50072 * d - 5.46568);
    }
}