package engine.mobileAI.Behaviours;

import engine.Enum;
import engine.InterestManagement.WorldGrid;
import engine.math.Vector3fImmutable;
import engine.mobileAI.utilities.CombatUtilities;
import engine.mobileAI.utilities.MovementUtilities;
import engine.objects.*;
import engine.server.MBServerStatics;
import java.util.HashSet;

public class StandardMob {

    public static void run(Mob mob){
        if(!mob.isAlive()){
            CheckForRespawn(mob);
            return;
        }

        mob.updateLocation();

        if(mob.combatTarget == null) {
            HashSet<AbstractWorldObject> inRange = WorldGrid.getObjectsInRangePartial(mob.loc, MBServerStatics.CHARACTER_LOAD_RANGE, MBServerStatics.MASK_PLAYER);
            if (!inRange.isEmpty()) {
                CheckForAggro(mob, inRange);
                return;
            }
        }else{
            CheckToDropCombatTarget(mob);
            if(mob.combatTarget == null){
                HashSet<AbstractWorldObject> inRange = WorldGrid.getObjectsInRangePartial(mob.loc, MBServerStatics.CHARACTER_LOAD_RANGE, MBServerStatics.MASK_PLAYER);
                CheckForAggro(mob, inRange);
                return;
            }
        }

        if(MovementUtilities.canMove(mob))
            CheckForMovement(mob);

        if(mob.combatTarget != null)
            CheckForAttack(mob);
    }

    public static void CheckToDropCombatTarget(Mob mob){

        if(!mob.combatTarget.isAlive()){
            mob.setCombatTarget(null);
            return;
        }

        if(mob.combatTarget.getObjectType().equals(Enum.GameObjectType.PlayerCharacter)){
            PlayerCharacter pcTarget = (PlayerCharacter) mob.combatTarget;
            if (!mob.canSee(pcTarget)) {
                mob.setCombatTarget(null);
                return;
            }
        }

        if(mob.bindLoc.distanceSquared(mob.combatTarget.loc) > 90 * 90){
            mob.setCombatTarget(null);
        }


    }

    public static void CheckForRespawn(Mob mob){
        if (mob.deathTime == 0) {
            mob.setDeathTime(System.currentTimeMillis());
            return;
        }

        if (!mob.despawned) {

            if (mob.getCharItemManager().getInventoryCount() > 0) {
                if (System.currentTimeMillis() > mob.deathTime + MBServerStatics.DESPAWN_TIMER_WITH_LOOT) {
                    mob.despawn();
                    mob.deathTime = System.currentTimeMillis();
                    return;
                }
                //No items in inventory.
            } else if (mob.isHasLoot()) {
                if (System.currentTimeMillis() > mob.deathTime + MBServerStatics.DESPAWN_TIMER_ONCE_LOOTED) {
                    mob.despawn();
                    mob.deathTime = System.currentTimeMillis();
                    return;
                }
                //Mob never had Loot.
            } else {
                if (System.currentTimeMillis() > mob.deathTime + MBServerStatics.DESPAWN_TIMER_ONCE_LOOTED) {
                    mob.despawn();
                    mob.deathTime = System.currentTimeMillis();
                    return;
                }
            }
            return;
        }

        if(Mob.discDroppers.contains(mob))
            return;

        if (System.currentTimeMillis() > (mob.deathTime + (mob.spawnTime * 1000L))) {
            Zone.respawnQue.add(mob);
        }
    }

    public static void CheckForAggro(Mob mob, HashSet<AbstractWorldObject> inRange){

    }

    public static void CheckForMovement(Mob mob){

        if(mob.combatTarget != null){
            //chase player
            float rangeSquared = mob.getRange() * mob.getRange();
            Vector3fImmutable loc2D = mob.loc;
            loc2D.setY(0);
            Vector3fImmutable tarLoc2D = mob.combatTarget.loc;
            tarLoc2D.setY(0);
            if(loc2D.distanceSquared(tarLoc2D) > rangeSquared)
                MovementUtilities.aiMove(mob,mob.combatTarget.loc,false);

        }else{
            //patrol
            if (mob.isMoving()) {
                return;
            }
            Vector3fImmutable patrolPoint = Vector3fImmutable.getRandomPointOnCircle(mob.bindLoc,40f);
            MovementUtilities.aiMove(mob,patrolPoint,true);
        }
    }

    public static void CheckForAttack(Mob mob){
        float rangeSquared = mob.getRange() * mob.getRange();
        Vector3fImmutable loc2D = mob.loc;
        loc2D.setY(0);
        Vector3fImmutable tarLoc2D = mob.combatTarget.loc;
        tarLoc2D.setY(0);
        if(loc2D.distanceSquared(tarLoc2D) > rangeSquared)
            return;

        if (mob.BehaviourType.callsForHelp)
            MobCallForHelp(mob);

        ItemBase mainHand = mob.getWeaponItemBase(true);
        ItemBase offHand = mob.getWeaponItemBase(false);

        if (mainHand == null && offHand == null) {
            CombatUtilities.combatCycle(mob, mob.combatTarget, true, null);
            int delay = 3000;
            mob.setLastAttackTime(System.currentTimeMillis() + delay);
        } else if (mob.getWeaponItemBase(true) != null) {
            int delay = 3000;
            CombatUtilities.combatCycle(mob, mob.combatTarget, true, mob.getWeaponItemBase(true));
            mob.setLastAttackTime(System.currentTimeMillis() + delay);
        } else if (mob.getWeaponItemBase(false) != null) {
            int attackDelay = 3000;
            CombatUtilities.combatCycle(mob, mob.combatTarget, false, mob.getWeaponItemBase(false));
            mob.setLastAttackTime(System.currentTimeMillis() + attackDelay);
        }
    }
    public static void MobCallForHelp(Mob mob){
        HashSet<AbstractWorldObject> mobs = WorldGrid.getObjectsInRangePartial(mob.loc,60f, MBServerStatics.MASK_MOB);
        for(AbstractWorldObject awo : mobs){
            Mob responder = (Mob)awo;
            if(responder.combatTarget == null)
                if(MovementUtilities.canMove(responder))
                    MovementUtilities.aiMove(responder,mob.loc,false);
        }
    }
}