Simple Anvil Iron Repairer - CNPC JS

//Simple Anvil Iron Repairer that takes iron nuggets from your inventory to repair any iron weapon (even ones enchanted or with custom names) in your first slot.

function init(event){
    event.block.setModel("minecraft:anvil");
}
var totalIron = 0;
function interact(event){
    var ironUsed = 0;
    totalIron = event.player.inventoryItemCount("minecraft:iron_nugget",0);
    var inventory = event.player.getInventory();
    if(inventory[0].getName().search("iron") != -1){
        for(i = 0; i < totalIron; i++) {
            if(inventory[0].getItemDamage() != 0)
                 {
                 inventory[0].setItemDamage(inventory[0].getItemDamage() -1);
                 ironUsed++;
                 }
            else{
                i = 9999999;
            }
        }
        event.player.removeItem("minecraft:iron_nugget",0,ironUsed);
        event.player.message("Repaired the item with " + ironUsed + " gold coins.");
    }
    else {event.player.message("The item in the first slot isn't made of iron!");}
}