--startup
term.write("Insert Length: ")
Length = tonumber(read())
print(" ")

term.write("Insert - times 3 - Width: ")
Width = tonumber(read())
print(" ")

local Length = Length
local Width = Width

local goRight = 0
local torchSlot = 1
local chestSlot = 2
local counter = 0
local torchCounter = 0
local secondCounter = 0
local firstStartup = 0


function torchesslotcheck()
    if turtle.getItemCount(torchslot) < 1 then
        print("put torches in slot 1!")
        repeat
            sleep (1.1)

        until turtle.getItemCount(torchslot) > 1
    end
    if turtle.getItemCount(chestSlot) < 1 then
        print("put chestes in slot 2!")
        repeat
            sleep (1.1)
        until turtle.getItemCount(chestSlot) >= 1
    end
end

function mineForward()
    turtle.select(1)
    print(counter)
    -- dig vooruit, dig boven, dig onder
    repeat
        turtle.dig()
    until not turtle.detect() == true
    repeat
        turtle.digUp()
    until turtle.up() == true
    turtle.down()
    turtle.digDown()

    if firstStartup == 0 then
        turtle.select(2)
        turtle.placeDown()
        firstStartup = 1
        select(1)
    end
    -- ga naar links, dig, naar voren, dig up
    turtle.turnLeft()
    repeat
        turtle.dig()
    until not turtle.detect() == true
    turtle.forward()
    repeat
        turtle.digUp()
    until turtle.up() == true
    turtle.down()
    turtle.digDown()

    -- ga naar rechts, vooren, dig up dig down
    turtle.turnRight()
    turtle.turnRight()
    turtle.forward()
    repeat
        turtle.dig()
    until not turtle.detect() == true
    turtle.forward()
    repeat
        turtle.digUp()
    until turtle.up() == true
    turtle.down()
    turtle.digDown()

    -- ga weer terug naar midden positie
    turtle.turnLeft()
    turtle.turnLeft()
    turtle.forward()
    turtle.turnRight()
    turtle.forward()
    print(counter)
    repeat
        turtle.dig()
    until not turtle.detect() == true
    counter = counter + 1
    secondCounter = secondCounter + 1
    if Length > 8 then
        if secondCounter == 8 then
            turtle.turnLeft()
            turtle.turnLeft()
            turtle.forward()
            turtle.select(1)
            turtle.placeDown()
            torchCounter = torchCounter + 1
            secondCounter = 0
            turtle.turnLeft()
            turtle.turnLeft()
            turtle.forward()
        end
    end
    if Length < 8 then
        if secondCounter == Length then
            turtle.turnLeft()
            turtle.turnLeft()
            turtle.forward()
            turtle.select(1)
            turtle.placeDown()
            torchCounter = torchCounter + 1
            secondCounter = 0
            turtle.turnLeft()
            turtle.turnLeft()
            turtle.forward()
        end
    end
    checkSlots()
    endCheck()
end

function checkSlots()
    turtle.getItemCount(16)
    if turtle.getItemCount(16) > 0 then
        print("gotte go clean my inventory!")
        turtle.turnLeft()
        turtle.turnLeft()
        for i=1,counter do
            turtle.forward()
        end
        if goRight == 0 then
            for q=3,16 do
                turtle.select(q)
                turtle.dropDown()
            end
            turtle.turnLeft()
            turtle.turnLeft()
            for i=1,counter do
                turtle.forward()
            end
        end
        if goRight > 0 then
            turtle.turnLeft()
            x = 0
            repeat
                turtle.forward()
                turtle.forward()
                turtle.forward()
                x = x + 1
            until x == goRight

            for q=3,16 do
                turtle.select(q)
                turtle.dropDown()
            end
            x = 0
            repeat
                turtle.forward()
                turtle.forward()
                turtle.forward()
                x = x + 1
            until x == goRight

            turtle.turnRight()
            for i=1,counter do
                turtle.forward()
            end
        end
    end
end

function endCheck()
    turtle.getItemCount(1)
    if turtle.getItemCount(1) == 1 then
        turtle.placeDown()
        turtle.turnLeft()
        turtle.turnLeft()
        for i=1,counter do
            turtle.forward()
        end
    end
end

function goBack()
    print("gotte go back!")
    turtle.turnLeft()
    turtle.turnLeft()
    for i=1,counter do
        turtle.forward()
    end
    for q=3,16 do
        turtle.select(q)
        turtle.dropDown()
    end
    turtle.turnRight()
    repeat
        turtle.dig()
    until not turtle.detect() == true

    i = 0
    repeat
        turtle.forward()
        repeat
            turtle.dig()
        until not turtle.detect() == true
        turtle.forward()
        repeat
            turtle.digUp()
        until turtle.up() == true
        turtle.down()
        turtle.digDown()
        i = i + 1
    until i == 1
    turtle.turnRight()

end



print("Lets GO!")
torchesslotcheck()

repeat
    repeat
        mineForward()
    until counter == Length
    goBack()

    goRight = goRight + 1
    counter = 0
until goRight == Width

print ("DONE?")