this = turtle

function sleep(n)
  local t = os.clock()
  while os.clock() - t <= n do
    -- nothing
  end
end

function harvest()
    local success, t = this.inspectDown()
    if success
    then
        print("inspect = true")
        if t.name == "AgriCraft:crops"
        then
            print("name = true")
            if t.metadata == 7
            then
                print("metadata = true")
                this.digDown()
                return true
            end
        end
    end
    return false
end

function getItemLocation(itemName)
    for i=1,16,1
    do
        local item = this.getItemDetail()
        print(item.name)
        print(itemName)
        if item.name == itemName
        then
            print(i)
            return i
        end
    end

    return -1
end

function placeInventory(slot)
    this.select(slot)
    this.placeDown()
end

function harvestCrop(seedType)
    local harvested = harvest()
    if harvested
    then
        local stick = getItemLocation("AgriCraft:cropsItem")
        sleep(2)
        local seed = getItemLocation(seedType)

        if stick > 0
        then
            placeInventory(stick)
        end

        if seed > 0
        then
            placeInventory(seed)
        end
    end
end

function leftUTurn()
    this.turnLeft()
    this.forward()
    this.turnLeft()
end

function rightUTurn()
    this.turnRight()
    this.forward()
    this.turnRight()
end

function advance(x,y,turn)
    if y == 7
    then
        if x % 2 == 0
        then
            rightUTurn()
        else
            leftUTurn()
        end
    else
        this.forward()
    end
end

function harvestEnderGrid()
    local left = this.turnLeft()
    local right = this.turnRight()
    for i=1,7,1
    do
        for j=1,7,1
        do
            harvestCrop("magicalcrops:EndermanSeeds")
            advance(i,j)
        end
    end
end

--this.refuel()
--harvestEnderGrid()
print(getItemLocation("magicalcrops:EndermanSeeds"))