/*  #######################################################
    # Deliver energy to spawns, controller and extencions #
    ####################################################### */

module.exports = {
    do: function(creep){
        // Memory creation
        if(creep.memory.restock == undefined) creep.memory.restock = true;
        if(creep.memory.target == undefined) creep.memory.target = null;
        
        // Job implementation
        if(creep.memory.restock){
            if(creep.memory.target == null){
                if(creep.room.storage != null && 1000 < creep.room.storage.store.getUsedCapacity(RESOURCE_ENERGY)) creep.memory.target = creep.room.storage.id;
                else {
                    var container = creep.pos.findClosestByPath(FIND_STRUCTURES, 
                        {filter: (s)=>(s.structureType == STRUCTURE_CONTAINER
                        && 0 < s.store.getUsedCapacity(RESOURCE_ENERGY))});
                    if(container != null) creep.memory.target = container.id;
                }
            }
            var target = Game.getObjectById(creep.memory.target);
            if(creep.withdraw(target, RESOURCE_ENERGY) == ERR_NOT_IN_RANGE) creep.moveTo(target);
            if(target != null && target.store.getUsedCapacity(RESOURCE_ENERGY) < creep.store.getFreeCapacity(RESOURCE_ENERGY)*0.4) creep.memory.target = null;
            if(creep.store.getFreeCapacity(RESOURCE_ENERGY) == 0){
                creep.memory.restock = false;
                creep.memory.target = null;
            }
        } else {
            if(creep.memory.target == null){ // aquire target
                var structure = structure = creep.room.controller;
                creep.memory.target = structure.id;
            }
            var target = Game.getObjectById(creep.memory.target);
            if(creep.transfer(target, RESOURCE_ENERGY) == ERR_NOT_IN_RANGE) creep.moveTo(target);
            if(creep.store.getUsedCapacity(RESOURCE_ENERGY) == 0){
                creep.memory.restock = true;
                creep.memory.target = null;
            }
        }
    }
};