function harvest()
    print ("Harvesting..")
    turtle.dig()
    turtle.suck()
    plant()
end


function inspect()
    local success,i =turtle.inspect()
    if success then
        local f = textutils.serialise(i.state.age)
        if f=="3" then
            print("Fully grown beetroot detected.")
            harvest()
        end
    elseif not success then
        plant()
    end
end

function turn()
    turtle.turnLeft()
end

function fuel()
    local t = turtle.getFuelLevel()
    if t<50 then
        print("Fuel less then 50.Please insert fuel to resume")
        while turtle.getFuelLevel()<50 do
        for i=1,16 do
            turtle.select(i)
            turtle.refuel()
        end
        end
    end
    print("Current fuel:".. t)
end

function plant()
 for i=1,16 do
    local s = turtle.select(i)
    local c = turtle.getItemDetail()
    if c then
        local g =c.name
        if g=="minecraft:beetroot_seeds" then
            print("Planting new seed..")
            turtle.place()
        end
    end
 end
end

function transfer()
    for i=1,16 do
        local t = turtle.select(i)
        local k = turtle.getItemCount()
        local m = turtle.getItemDetail()

        if m then
            local f = m.name
            print (f)
            if (f=="minecraft:beetroot" or f=="minecraft:beetroot_seeds") then
                if k>4 then
                    turtle.dropDown(k-4)
                    print ("Storing ".. k-4 .." cocoa beans")
                end
            end
        end
    end
end

while true do
    fuel()
    for i=1,4 do
        inspect()
        turn()
    end
    transfer()
    os.sleep(5)
end