storage

local function transfer(self, destination, name, count)

    if not count then count = 64 end

    local countLeft = count

    for slot, item in pairs(self.peripheral.list()) do

        if item.name == name then

            countLeft = countLeft - self.peripheral.pushItems(destination, slot, countLeft)

            if countLeft < 1 then break end

        end

    end

end

local function list(self)

    local results = {}

    for slot, item in pairs(self.peripheral.list()) do

        if results[item.name] ~= nil then

            results[item.name] = results[item.name] + item.count

        else

            results[item.name] = item.count

        end

    end

    return results

end

local function amount(self, name)

    local results = 0

    for slot, item in pairs(self.peripheral.list()) do

        if item.name == name then

            results = results + item.count

        end

    end

    return results

end

local function make(peripheral)

    return {

        peripheral = peripheral,
        transfer = transfer,
        list = list,
        amount = amount

    }

end

return { make = make }