Treefarm turtle

function isSaplingInSlot(slot)
    sapling_list = {"minecraft:birch_sapling", "minecraft:oak_sapling", "minecraft:spruce_sapling", "minecraft:jungle_sapling", "minecraft:acacia_sapling", "minecraft:dark_oak_sapling"}
    if (slot == nil) then
        slot = turtle.getSelectedSlot()
    end
    item = turtle.getItemDetail(slot)
    if succes then
        for i=1, #sapling_list do
            if (item.tags == sapling_list[i]) then
                return true
            end
        end
    else
        -- nothing found
        return false
    end
end

-- is sapling
function isSapling()
    succes, item = turtle.inspect()
    if succes and (item.tags == item.tags["minecraft:saplings"]) then
        return true
    else
        -- nothing found
        return false
    end
end
function isSaplingUp()
    succes, item = turtle.inspectUp()
    if succes and (item.tags == item.tags["minecraft:saplings"]) then
        return true
    else
        -- nothing found
        return false
    end
end
function isSaplingDown()
    succes, item = turtle.inspectDown()
    if succes and (item.tags == item.tags["minecraft:saplings"]) then
        return true
    else
        -- nothing found
        return false
    end
end

-- is tree
function isTree()
    succes, item = turtle.inspect()
    if succes and (item.tags == item.tags["minecraft:logs"]) then
        return true
    else
        -- nothing found
        return false
    end
end
function isTreeUp()
    succes, item = turtle.inspectUp()
    if succes and (item.tags == item.tags["minecraft:logs"]) then
        return true
    else
        -- nothing found
        return false
    end
end
function isTreeDown()
    succes, item = turtle.inspectDown()
    if succes and (item.tags == item.tags["minecraft:logs"]) then
        return true
    else
        -- nothing found
        return false
    end
end

-- is leaves
function isLeave()
    succes, item = turtle.inspect()
    if succes and (item.tags == item.tags["minecraft:leaves"]) then
        return true
    else
        -- nothing found
        return false
    end
end
function isLeaveUp()
    succes, item = turtle.inspectUp()
    if succes and (item.tags == item.tags["minecraft:leaves"]) then
        return true
    else
        -- nothing found
        return false
    end
end
function isLeaveDown()
    succes, item = turtle.inspectDown()
    if succes and (item.tags == item.tags["minecraft:leaves"]) then
        return true
    else
        -- nothing found
        return false
    end
end

-- checks for box to take saplings from or turns 360 and sucks in all aplings
function getSaplings()
    slot = 0
    chest = peripheral.find("minecraft:chest")
    chest.side = peripheral.getName(chest)
    if chest ~= nil then
        if (chest.side == "left") then
            turtle.turnLeft()
        elseif (chest.side == "right") then
            turtle.turnRight()
        elseif (chest.side == "back") then
            turtle.turnRight()
            turtle.turnRight()
        end

        for i=1, chest.size do
            item = chest.getItemDetail(i)
            if (item.tags == item.tags["minecraft:saplings"]) then
                slot = i
            end
        end
        if (slot ~= 0) and (slot <= 15) then
            for p=1, 15 do
                if (chest.side == "top") then
                    turtle.suckUp()
                elseif (chest.side == "bottom") then
                    turtle.suckDown()
                else
                    turtle.suck()
                end
            end
            for a=2, 16 do
                item = turtle.getItemDetail(a)
                if (item.tags == item.tags["minecraft:saplings"]) then
                    turtle.select(a)
                    turtle.transferTo(1)
                end
            end
            for a=2, 16 do
                if (chest.side == "top") then
                    turtle.dropUp()
                elseif (chest.side == "bottom") then
                    turtle.dropDown()
                else
                    turtle.drop()
                end
            end
        end

        if (chest.side == "left") then
            turtle.turnRight()
        elseif (chest.side == "right") then
            turtle.turnLeft()
        elseif (chest.side == "back") then
            turtle.turnRight()
            turtle.turnRight()
        end
    else
        turtle.turnRight()
        turtle.suck()
        turtle.turnRight()
        turtle.suck()
        turtle.turnRight()
        turtle.suck()
        turtle.turnRight()
        turtle.suck()
    end
end

function getInventoryCount()
    items = 0
    for i=2, 16 do
        item = turtle.getItemDetail(i)
        if item ~= nil then
            items = items + item.count
        end
    end
    return items
end


-- ### LOOP ###
while true do
    if isSaplingInSlot(1) == 0 then
        getSaplings()
        if isSapling() then
            --wait
            os.sleep(1)
        else
            turtle.select(1)
            turtle.place()
        end
    end
    if isTree() then
        turtle.dig()
        turtle.forward()
        while isTreeUp or isLeaveUp do
            turtle.dig()
            turtle.digUp()
            turtle.up()
        end
        while turtle.down() do
            -- nothing
        end
        turtle.back()
    end

    -- ### blablabla get item to chest or hopper below ###
    if getInventoryCount() > 900 then
        while getInventoryCount() < 32 do
            turtle.turnRight()
            turtle.turnRight()
            turtle.turnRight()
            turtle.turnRight()
        end
        print("Inventory cleared")
    end
end