var hauler = [CARRY, CARRY, MOVE, MOVE];
var hauler_cost = body_cost(hauler);
var harvester = [WORK, WORK, MOVE, MOVE];
var harvester_cost = body_cost(harvester);
var upgrader = [WORK, CARRY, MOVE];
var upgrader_cost = body_cost(upgrader);

//indexes into starting body types array
var BodyType = { //itd be nice to unify this with Actions
    hauler: {body: hauler, cost: hauler_cost},
    harvester: {body: harvester, cost: harvester_cost},
    upgrader: {body: upgrader, cost: upgrader_cost},
};

function body_cost(body) {
    return body.reduce(function (accumulator, part) {
        return accumulator + BODYPART_COST[part];
    }, 0);
}

//this is here so the AI knows what "types" of creep it should spawn
//the AI will these arrays in room memory as the rooms production capabilities increase

//creep spawning in the context of a room
//this saves the counts of all the types of creep spawn
function smart_spawn(room) {
    var spawns = room.find(FIND_STRUCTURES, {
        filter: (structure) => {
            return (structure.structureType == STRUCTURE_SPAWN)
        }
    });

    //room info
    var room_energy = room.energyAvailable;
    //if creep counter exists, room must have already been initialized
    if(room.memory.creep_counter) {
        if(spawns) {
            for(var name in spawns) {
                var spawn = spawns[name];
                if(room.memory.spawn_sequence.length != 0) {
                    var spawn_info = room.memory.spawn_sequence.shift();
                    if(spawn_info.cost <= spawn.energy) {
                        spawn.createCreep(spawn_info.body, null);
                    }
                }
                else {
                    console.log('initial spawn sequence ended!');
                }
            }
        }
    }
    else {
        //initialization stuff
        room.memory.spawn_sequence = [
            BodyType.hauler,
            BodyType.hauler,
            BodyType.harvester,
            BodyType.hauler,
            BodyType.hauler,
            BodyType.harvester,
            BodyType.hauler,
            BodyType.upgrader,
            BodyType.upgrader,
            BodyType.upgrader,
        ];


        var new_spawn = spawns[0].createCreep(BodyType.harvester.body, null);
        if(new_spawn != ERR_NOT_ENOUGH_ENERGY) {
            room.memory.creep_counter = {
                haulers: 0,
                harvesters: 0,
                upgraders: 0,
            };

            room.memory.creep_counter.harvesters += 1;
        }
    }
}

module.exports = {

}