CC AMI NBT Changer

shell.run("clear")
if not fs.exists("api") then
    shell.run("pastebin get QMct3H9x api")
else
    shell.run("delete api")
    shell.run("pastebin get QMct3H9x api")
end

f = os.loadAPI("api")
crafting = {}
crafting["242:6"] = {4093,0}
crafting["9258:2"] = {351,4}
crafting["9258:1"] = {388,0}
crafting["9258:0"] = {377,0}
crafting["9258:6"] = {264,0}
crafting["1133:0"] = {54,0}
crafting["20261:69"] = {19264,0}

p = peripheral.wrap("top")
ID = p.getPeripheralWorldID()
w = p.getWorld(ID)
pl = p.getPlayerByName("Muzze77")
ent = pl.asEntity()
x, y, z = p.getPeripheralPos()

if w.getBlockID(x,y+2,z) == 0 then
w.setBlock(x, y+2, z, 54,0)
end





items = {}
while true do

        shell.run("clear")

        te = w.getTileEntity(x,y+2,z)

        nbt = api.readTileNBT(te)
        tab = nbt.value.Items.value
        i = textutils.serialize(tab)

        for v, k in pairs(tab) do
            slot = k.value.Slot.value
            item = k.value.id.value
            meta = k.value.Damage.value
            count = k.value.Count.value
            for a,b in pairs(crafting) do
                itemCheck = item .. ":" .. meta

                if  itemCheck == a then
                    k.value.id.value = b[1]
                    k.value.Damage.value = b[2]
                    print("Switched " .. itemCheck .. " with " .. b[1] .. ":" .. b[2])

                end
            end


        end


    api.writeTileNBT(te,nbt)
    for tm = 1, 0,-0.1 do
        gx,gy = term.getSize()
        term.setCursorPos(2,gy-1)
        term.write(tm)
        term.setCursorPos(5,gy-1)
        term.write("                                     ")

        sleep(0.1)
    end
end