#ifndef ENTITY_H
#define ENTITY_H

#include "pixelGameEngine.h"
#include "object.h"

extern std::vector<Item*>PARTY_INVENTORY;

using namespace olc;


class Entity{
    private:
    int HP=0;
    int targetHP=0;
    int PP=0;
    int targetPP=0;
    public:
    int maxHP=0;
    int maxPP=0;
    std::array<int,4>resistances={0,0,0,0};
    int speed=0;
    int baseAtk=0;
    int damageReduction=0; //A percentage of how much damage to reduce.
    bool smart=false;
    bool dumb=false;
    int atb=0; //When this value reaches 1000, it's this entity's turn.
    Object* obj;
    std::vector<Battle::Move*> moveSet;
    std::map<Property,int> statusEffects;
    int selectedTarget = NO_TARGET;
    Battle::Move*selectedMove = nullptr; //The index of the selected move.
    int channelTimeRemaining = 0; //The amount of channel time left until move can be performed.
    vd2d channelPos = DEFAULT_CHANNELPOS; //Where our channel is happening.
    std::vector<Item*> inventory; //Used mostly for enemy spoils.
    std::array<Item*,3> equipment = {nullptr,nullptr,nullptr}; //Equipment this character is using.
    bool isPlayer=false; //Whether or not this is a player entity.
    //Used for initializing players.
    Entity(int HP,int maxHP,int PP,int maxPP,int baseAtk,std::array<int,4>resistances,int speed,std::vector<Battle::Move*>moveSet,std::vector<Item*>items={},std::array<Item*,3>equipment={},int damageReduction=0,bool smart=false,bool dumb=false)
    :Entity(nullptr,HP,maxHP,PP,maxPP,baseAtk,resistances,speed,moveSet,items,equipment,damageReduction,smart,dumb){
        isPlayer=true;
    }
    //Use this for initializing enemies as it lets you specify an object.
    Entity(Object*obj,int HP,int maxHP,int PP,int maxPP,int baseAtk,std::array<int,4>resistances,int speed,std::vector<Battle::Move*>moveSet,std::vector<Item*>items={},std::array<Item*,3>equipment={},int damageReduction=0,bool smart=false,bool dumb=false)
    :obj(obj),HP(HP),maxHP(maxHP),PP(PP),maxPP(maxPP),baseAtk(baseAtk),speed(speed),equipment(equipment),moveSet(moveSet),damageReduction(damageReduction),inventory(items),smart(smart),dumb(dumb){
        for (int i=0;i<4;i++) {
            this->resistances[i]=resistances[i];
        }
        this->targetHP=HP;
        this->targetPP=PP;
    }
    Property GetPrimaryStatusEffect() {
        for (std::map<Property,int>::iterator it = statusEffects.begin();it!=statusEffects.end();++it) {
            if (it->second!=0) {
                return it->first;
            }
        }
        return Property::NONE;
    }
    //Get the HP that the rolling counter is moving towards.
    int GetTargetHP() {
        return targetHP;
    }
    //Gets the current actual health of the target.
    int GetHP() {
        return HP;
    }
    //Get the PP that the rolling counter is moving towards.
    int GetTargetPP() {
        return targetPP;
    }
    //Gets the current actual pp of the target.
    int GetPP() {
        return PP;
    }
    //Sets the rolling counter target to this health value.
    void SetTargetHP(int hp) {
        targetHP=hp;
    }
    //Sets the rolling counter target to this pp value.
    void SetTargetPP(int pp) {
        targetPP=pp;
    }
    //Subtracts from the rolling counter target from this health value.
    void SubtractHP(int hp) {
        targetHP-=hp;
    }
    //Adds to the rolling counter target from this health value.
    void AddHP(int hp) {
        targetHP=std::clamp(targetHP+hp,0,maxHP);
    }
    //Subtracts from the rolling counter target from this pp value.
    void SubtractPP(int pp) {
        targetPP=std::clamp(targetPP-pp,0,maxPP);
    }
    //Adds to the rolling counter target from this pp value.
    void AddPP(int pp) {
        targetPP=std::clamp(targetPP+pp,0,maxPP);
    }
    //THIS IS FOR SPECIAL USE CASES ONLY! Normally you want to touch the rolling counter amount instead using SetTargetHP()!
    void _SetDirectHP(int hp) {
        HP=hp;
    }
    //THIS IS FOR SPECIAL USE CASES ONLY! Normally you want to touch the rolling counter amount instead using SetTargetPP()!
    void _SetDirectPP(int pp) {
        PP=pp;
    }

    void RemoveItem(int index) {
        if (isPlayer) {
            PARTY_INVENTORY.erase(PARTY_INVENTORY.begin()+index);
        } else {
            inventory.erase(inventory.begin()+index);
        }
    }

    //If index is -1, the item is inserted at the end of the list. Otherwise it's going to overwrite a certain slot. Be certain you swap the item before doing this!
    void RemoveEquip(EquipSlot::Equip slot,int index=-1) {
        Item*CurrentEquip=equipment[slot];
        if (CurrentEquip==nullptr) {
            return;
        }
        if (isPlayer) {
            if (index==-1) {
                PARTY_INVENTORY.push_back(CurrentEquip);
            } else {
                PARTY_INVENTORY[index]=CurrentEquip;
            }
            equipment[slot]=nullptr;
        } else {
            if (index==-1) {
                inventory.push_back(CurrentEquip);
            } else {
                inventory[index]=CurrentEquip;	
            }
            equipment[slot]=nullptr;
        }
    }

    //Will automatically swap items with current equipment so no need to call remove first.
    void EquipItem(int index) {
        Item*equip=nullptr;
        if (isPlayer) {
            equip=PARTY_INVENTORY[index];
        } else {
            equip=inventory[index];
        }
        if (equip==nullptr) {
            return;
        }
        if (equip->stats.equip==EquipSlot::NONE) {
            printf("Cannot equip %s! Does not have a valid Equip slot!\n",equip->name.c_str());
            return;
        }
        Item*CurrentEquip=equipment[equip->stats.equip];
        if (CurrentEquip==nullptr) {
            if (isPlayer) {
                PARTY_INVENTORY.erase(PARTY_INVENTORY.begin()+index);
            } else {
                inventory.erase(inventory.begin()+index);
            }
        } else {
            RemoveEquip(CurrentEquip->stats.equip,index);
        }
        equipment[equip->stats.equip]=equip;
    }
};
#endif