-- Program for managing an iron generator in create with the create: ultimate
-- factory datapack

local store = peripheral.wrap("create:item_vault_0")
local basins = { peripheral.find("create:basin") }
local output = store
local BASIN_OUT_SLOT = 10
local IRON_NUGGET = "minecraft:iron_nugget"
local GRAVEL = "minecraft:gravel"

function find_item (inv, item_name)
    for i, v in pairs(inv.list()) do
        if v.name == item_name then
            return i
        end
    end
end

while true do
    for _, b in ipairs(basins) do
        local iron_slot = find_item(store, IRON_NUGGET)
        local gravel_slot = find_item(store, GRAVEL)
        local basin_name = peripheral.getName(b)
        if gravel_slot ~= nil then
            store.pushItems(basin_name, gravel_slot)
        end
        if iron_slot ~= nil then
            store.pushItems(basin_name, iron_slot)
        else
            sleep(1)
        end
        output.pullItems(basin_name, BASIN_OUT_SLOT)
    end
end