--Variables

local Connected_Inventories = {}
local Inventory = {}
local Slot_Count = 16

--Functions

local function readInventory(InventoryIndex,InventoryID)
    --make a list of every item,its count,and slot number.
    local ItemInfo_List = {}
    for i = 1,Slot_Count do
        local ItemInfo = turtle.getItemDetail(i)
        if ItemInfo then
            local Item_Info = {ItemInfo[1],ItemInfo[2],i}
            table.insert(ItemInfo_List,Item_Info)
        end
    end
    return ItemInfo_List
end

local function addItemToInvList(ItemInfos)
    --Add item and count to the general Inventory list.
    table.insert(Inventory,ItemInfos)
end

local function moveInfo(Inventory_List)
    for Item_Index,Item_Information in pairs(Inventory_List) do
        addItemToInvList(Item_Information)
    end
end

local function takeInventory()
    for Inventory_Index,Inventory_ID in pairs(Connected_Inventories) do
        local InvList = readInventory(Inventory_Index,Inventory_ID)
        --for every item in the readInventory lists, add its name and its count to the general Inventory list.
        moveInfo(InvList)
    end
    return Inventory
end

local function printInventory()
    takeInventory()
    print("Inventory: ")
    for ItemIndex,ItemInformation in pairs(Inventory) do
        print(ItemInformation[1]..";"..ItemInformation[2])
    end
end

--Program starts

for Peripheral_Index,Peripheral_ID in pairs(peripheral.getNames()) do
    local Current_Peripheral = peripheral.wrap(Peripheral_ID)
    local Peripheral_Name,Peripheral_Type = peripheral.getType(Current_Peripheral)
    if Peripheral_Type == "inventory" then
        table.insert(Connected_Inventories,Current_Peripheral)
    end
end

printInventory()