Computercraft TreeFarm V2

h = 0

function turnRight(times)
  i = 0
  repeat
    turtle.turnRight()
    i = i + 1
  until i == times
  i = 0
end

function forward(times)
  i = 0
  repeat
    turtle.forward()
    i = i + 1
  until i == times
  i = 0
end


while true do
    result, block = turtle.inspect()
    if block.name == "minecraft:log" then
        repeat
            turtle.digUp()
            turtle.dig()
            turtle.up()
            h = h + 1
            result, block = turtle.inspect()
        until block.name ~= "minecraft:log"
        for i = 1,h do
            turtle.down()
        end
        h = 0
        if turtle.getFuelLevel() <= 250 then
            turnRight(2)
            forward(2)
            turnRight(1)
            forward(1)
            turtle.turnLeft()
            turtle.down()
            turtle.select(13)
            for i = 1,4 do
                turtle.suck()
            end
            turtle.up()
            turtle.turnLeft()
            forward(1)
            turnRight(1)
            turtle.up()
            for i = 13,16 do
                turtle.select(i)
                if turtle.getItemCount(i) > 0 then
                    turtle.drop()
                end
            end
            turtle.suck()
            turtle.refuel()
            turtle.select(1)
            turtle.down()
            turnRight(2)
            forward(2)
        end
        if turtle.getItemCount(1) <= 16 then
            turnRight(2)
            forward(2)
            turtle.down()
            turtle.select(1)
            turtle.suckDown()
            turtle.select(13)
            for i = 1,3 do
                turtle.suckDown()
            end
            turtle.digUp()
            turtle.up()
            for i = 2,16 do
                turtle.select(i)
                if turtle.getItemCount(i) > 0 then
                    detail = turtle.getItemDetail()
                    if detail.name == "minecraft:sapling" then
                        turtle.drop()
                    end
                end
            end
            turnRight(2)
            forward(2)
        end
        if turtle.getItemCount(2) >= 48 then
            turnRight(2)
            forward(2)
            turnRight(1)
            forward(2)
            turtle.turnLeft()
            turtle.digUp()
            turtle.up()
            turtle.select(2)
            turtle.drop(9)
            turtle.turnLeft()
            turtle.dig()
            forward(1)
            turnRight(1)
            turtle.drop(6)
            turtle.down()
            turtle.turnLeft()
            forward(2)
            turnRight(1)
            turtle.drop()
            turnRight(1)
            forward(1)
            turnRight(1)
            forward(2)
        end
    elseif result == false then
        turtle.select(1)
        turtle.place()
        sleep(30)
    end
end