local islog = false
Slot = -1
Test = true
Height = 0
Run = 0
--//////////////////////////////////////--
function findSlot(name)
    for i=1,16 do
        turtle.select(i)
        if turtle.getItemDetail() == nil then
        else
            if turtle.getItemDetail().name == name then
                Slot = i 
            end
        end
    end
    return Slot
end

function checkFuelNrefuel()

    if turtle.getFuelLevel() < 50 then

        turtle.select(findSlot("minecraft:coal"))
        turtle.refuel(1)
        print("refueling from"..findSlot("minecraft:coal"))

    end

end

--/////////////////--

function chop()
    Test = true
    while Test do
        
        checkFuelNrefuel()

        if not turtle.detect() then
            print("test=false")
            Test = false
            
        else
            print("test=true")
            turtle.dig()

            if turtle.detectUp() then
                turtle.digUp()
            end
            turtle.up()

            Height = Height + 1
            
        end

        os.sleep(0.5)
    end

    for i=1,Height-1 do
        turtle.down()
    end

end


--//////////////////////////////////////--


while true do

    term.clear()
    term.setCursorPos(1,1)

    write("run")
    print(Run)
    Run = Run + 1

    checkFuelNrefuel()
    
    B,C = turtle.inspect()

    print(B)
    print(C.name)
    print("testing")
    if C.name == "minecraft:log" then
        print("log, chopping")
        chop()
        turtle.select(findSlot("minecraft:sapling"))
        turtle.place()
    
    else
        print("no log, waiting")
    end
    os.sleep(1)
end