local length = 22
local width = 22
local height = 80

local forward_movement = 0
local right_movement = 0
local up_movement = 0
local back_movement = 0
local down_movement = 0

local last = "left"
local firststartup = true
local treefound = false

function firstStartup()
    if firststartup == true then
        if turtle.getItemCount(1) == 0 then
            print("put a chest in slot 1!")
            repeat
                sleep (1.1)

            until turtle.getItemCount(1) > 0
        end
        turtle.back()
        turtle.select(1)
        turtle.placeDown()
        turtle.forward()
        print("STARTING!")
        firststartup = false
    end
end
function forward()
    repeat
        turtle.dig()
    until not turtle.detect() == true

    turtle.forward()
    turtle.digUp()
    turtle.digDown()

    forward_movement = forward_movement + 1
    print("lenght: " .. forward_movement .. "/" .. length)
end
function moveRight()
    if right_movement == (width - 1) then
        back_movement = 0
        repeat
            turtle.back()
            back_movement = back_movement + 1
        until back_movement == length
        right_movement = right_movement + 1
    else
        turtle.turnRight()

        repeat
            turtle.dig()
        until not turtle.detect() == true

        turtle.forward()
        turtle.digUp()
        turtle.digDown()

        turtle.turnRight()

        right_movement = right_movement + 1
        print("width: " .. right_movement .. "/" .. width)
        last = "right"
    end
end
function moveLeft()
    if right_movement == (width - 1) then
        turtle.turnRight()
        turtle.turnRight()
        right_movement = right_movement + 1
    else
        turtle.turnLeft()
        turtle.dig()

        repeat
            turtle.dig()
        until not turtle.detect() == true

        turtle.forward()
        turtle.digUp()
        turtle.digDown()

        turtle.turnLeft()

        right_movement = right_movement + 1
        print("width: " .. right_movement .. "/" .. width)
        last = "left"
    end
end
function backToBase()
    right_movement = 0
    forward_movement = 0
    turtle.turnLeft()
    repeat
        turtle.forward()
        forward_movement = forward_movement + 1
    until forward_movement == (length - 1)

    turtle.turnRight()
    if up_movement == 0 then

        turtle.back()
        for q=1,16 do
            turtle.select(q)
            turtle.dropDown()
        end
        turtle.forward()

        turtle.up()
        turtle.up()
        turtle.up()
    elseif up_movement > 0 then
        repeat
            turtle.down()
            turtle.down()
            turtle.down()
            down_movement = down_movement + 3
        until down_movement == up_movement

        turtle.back()
        for q=1,16 do
            turtle.select(q)
            turtle.dropDown()
        end
        turtle.forward()

        repeat
            turtle.up()
            turtle.up()
            turtle.up()
            down_movement = down_movement - 3
            print(down_movement)
        until down_movement == 0
    end

    up_movement = up_movement + 3
    forward_movement = 0
    right_movement = 0
    last = "left"

end
function backToBase_noReturn()
    right_movement = 0
    forward_movement = 0
    turtle.turnLeft()
    repeat
        turtle.forward()
        forward_movement = forward_movement + 1
    until forward_movement == (length - 1)

    turtle.turnRight()
    if up_movement == 0 then

        turtle.back()
        for q=1,16 do
            turtle.select(q)
            turtle.dropDown()
        end

    elseif up_movement > 0 then
        repeat
            turtle.down()
            turtle.down()
            turtle.down()
            down_movement = down_movement + 3
        until down_movement == up_movement

        turtle.back()
        for q=1,16 do
            turtle.select(q)
            turtle.dropDown()
        end
    end

    forward_movement = 0
    right_movement = 0
    up_movement = 0
    back_movement = 0
    down_movement = 0
    last = "left"
    treefound = false
end
function findTree()
    turtle.forward()
    forward_movement = 0
    right_movement = 0
    repeat
        --if forward = true, it's okey
        -- else a tree is found and I need to go back the amount of times i went back
        -- same goes for the if right
        -- add booleans to check if I turned right orsomething?
        if treefound == false then
            if turtle.forward() then
                forward_movement = forward_movement + 1
            else
                treefound = true
            end
        end
    until ((forward_movement == (length / 2)) or (treefound == true))
    print("1")

    if treefound == true then
        repeat
            turtle.back()
            forward_movement = forward_movement - 1
        until forward_movement == 0
    else
        print("2")
        turtle.turnRight()

        repeat
            if treefound == false then
                if turtle.forward() then
                    right_movement = right_movement + 1
                else
                    treefound = true
                end
            end
        until ((right_movement == (width / 2)) or (treefound == true))
        print("3" .. right_movement)
        repeat
            turtle.back()
            right_movement = right_movement - 1
        until right_movement == 0

        turtle.turnLeft()

        repeat
            turtle.back()
            forward_movement = forward_movement - 1
        until forward_movement == 0
    end
    turtle.back()


    if treefound == true then
        print("Boom gevonden!")
    end
    -- if tree is still false. go back and sleep.
    forward_movement = 0
    right_movement = 0
end

function plantSeed()
    if turtle.getItemCount(1) > 0 then
        print("need to empty the chest pls")
        for q=1,16 do
            turtle.select(q)
            turtle.dropDown()
        end
        repeat
            sleep(2)
        until turtle.getItemCount(1) == 0
        print("getting seeds")
    end
    turtle.turnRight()
    turtle.forward()
    turtle.forward()
    turtle.forward()
    turtle.select(1)
    repeat
        turtle.suckDown(1)
    until turtle.getItemCount(1) > 0

    turtle.back()
    turtle.back()
    turtle.back()
    turtle.turnLeft()

    -- plant actual seed
    turtle.forward()
    forward_movement = 0
    right_movement = 0
    repeat
        if turtle.forward() then
            forward_movement = forward_movement + 1

        end
    until (forward_movement == (length / 2))

    turtle.turnRight()

    repeat
        if treefound == false then
            if turtle.forward() then
                right_movement = right_movement + 1
            else
                treefound = true
            end
        end
    until (right_movement == (width / 2))

    turtle.select(1)
    turtle.placeDown()

    repeat
        turtle.back()
        right_movement = right_movement - 1
    until right_movement == 0

    turtle.turnLeft()

    repeat
        turtle.back()
        forward_movement = forward_movement - 1
    until forward_movement == 0

    turtle.back()

    forward_movement = 0
    right_movement = 0
end

-- firstStartup()
repeat
    findTree()
    if treefound == false then
        sleep(10)
    end
until treefound == true
if treefound == true then
    repeat
        repeat
            repeat
                forward()
            until forward_movement == length
            forward_movement = 0

            if last == "left" then
                moveRight()
            elseif last == "right" then
                moveLeft()
            end
        until right_movement == width
        print("upmovement: " .. up_movement .. "/" .. height)

        backToBase()

        print("upmovement: " .. up_movement .. "/" .. height)
    until up_movement >= height

    if up_movement >= height then
        repeat
            print("kaas1")
            repeat
                forward()
            until forward_movement == length
            forward_movement = 0

            if last == "left" then
                moveRight()
            elseif last == "right" then
                moveLeft()
            end
        until right_movement == width
        backToBase_noReturn()
        plantSeed()
        --plant new sapling
    end
end