const int upperThreshold = 25000000;
const int lowerThreshold = 1000000;
string collectorState = "";

List<IMyCargoContainer> oreContainers = new List<IMyCargoContainer>();
List<MyInventoryItem> Items = new List<MyInventoryItem>();

IMyBlockGroup collectorGroup;
List<IMyCollector> collectors = new List<IMyCollector>();

public Program() {
    Runtime.UpdateFrequency = UpdateFrequency.Update100;
}

public void Main(string args) {
    collectorGroup = GridTerminalSystem.GetBlockGroupWithName("Collectors");
    collectorGroup.GetBlocksOfType(collectors);
    int iceamount = getCurrentIceAmount();
    collectorState = collectors[0].Enabled ? "Active" : "Inactive";
    Echo($"Current Ice Amount: {iceamount}");
    Echo($"Collectors are {collectorState}");

    if(iceamount > upperThreshold) {
        toggleCollectors(false);
        Echo($"Collectors are OFF");
    } else if (iceamount < lowerThreshold) {
        toggleCollectors(true);
        Echo($"Collectors are ON");
    }
}

public int getCurrentIceAmount() {
    int totalAmount = 0;
    GridTerminalSystem.GetBlocksOfType(oreContainers);
    foreach (var osc in oreContainers) {
        var inventory = osc.GetInventory(0);
        Items.Clear();
        inventory.GetItems(Items);
        foreach (var item in Items) {
            string key = item.Type.ToString();
            if (key == "MyObjectBuilder_Ore/Ice") {
                totalAmount = totalAmount + item.Amount.ToIntSafe();
            }  
        }
    }
    return totalAmount;
}

public void toggleCollectors(bool targetState) {
    if (collectors == null) {
        Echo("Group collectors not found");
        return;
    }
    foreach (var collector in collectors) {
        collector.Enabled = targetState;
    }
}