Function countAvailableItems

plugins/buildingplan/buildingplan.cpp:757–785

}

static int countAvailableItems(color_ostream &out, df::building_type type, int16_t subtype, int32_t custom, int index) {
    DEBUG(control,out).print(
            "entering countAvailableItems building_type={} subtype={} custom={} index={}\n",
            ENUM_AS_STR(type), subtype, custom, index);
    int count = scanAvailableItems(out, type, subtype, custom, index, false, false);
    if (count)
        return count;

    // nothing in stock; return how many are waiting in line as a negative
    BuildingTypeKey key(type, subtype, custom);
    auto &job_items = get_job_items(out, key);
    if (index < 0 || job_items.size() <= (size_t)index)
        return 0;
    auto &jitem = job_items[index];

    for (auto &entry : planned_buildings) {
        auto &pb = entry.second;
        // don't actually remove bad buildings from the list while we're
        // actively iterating through that list
        auto bld = pb.getBuildingIfValidOrRemoveIfNot(out, true);
        if (!bld || bld->jobs.size() != 1)
            continue;
        for (auto pb_jitem : bld->jobs[0]->job_items.elements) {
            if (pb_jitem->item_type == jitem->item_type && pb_jitem->item_subtype == jitem->item_subtype)
                count -= pb_jitem->quantity;
        }
    }
    return count;
}

static bool hasFilter(color_ostream &out, df::building_type type, int16_t subtype, int32_t custom, int index) {
    TRACE(control,out).print("entering hasFilter\n");