sender

local p = peripheral
local temp = p.find("barrel")
local stockage = p.find("vault")

rednet.open("back")
local receiverID = 2
local eventName = "press"
local parameters = {name = "minecraft:iron_ingot", count = 10}
local message = {eventName, parameters}

local cache = {}
local goal = parameters.count
for slot, item in pairs(stockage.list()) do
    --print(("%d x %s in slot %d"):format(item.count, item.name, slot))
    if (item.name == parameters.name) then
        if (item.count >= goal) then
            cache[slot] = goal
            goal = 0
            break
        else
            cache[slot] = item.count
            goal = goal - item.count
        end
    end
end

if (goal > 0) then
    print("manque de matière pour le craft")
    return
else
    print("envoi des materiaux et du craft...")

    for slot, count in pairs(cache) do
        stockage.pushItems(p.getName(temp), slot, count)
    end

    rednet.send(receiverID, message)
end