farm

term.clear()
term.setCursorPos(1,1)
local fuelReq=59*2+2

-- CHECK FOR CORRECT CONFIG

turtle.select(1)
if turtle.getItemCount(1)<1 or turtle.getItemCount(2)<1 then
    error("you must have at least 1 seed in slot 1 and 1 wheat in slot 2")
end

if turtle.compareTo(2) then
    error("you have the same item in slot 1 and 2. slot 1 must be seeds and slot 2 must be wheat")
end

--WAIT FOR CORRECT PLANTING TIME

print("press P to begin planting")
repeat
    local evt={os.pullEvent("char")}
until evt[2]=="p" or evt[2]=="P"

for run=1,2 do
    --CHECK CONDITIONS AND RESTOCK/REFUEL
    if turtle.getFuelLevel()<fuelReq then
        turtle.select(4)
        while turtle.getFuelLevel()<fuelReq and turtle.suckDown() do
            while turtle.getItemCount(4)>0 and turtle.getFuelLevel()<fuelReq do
                turtle.refuel(1)
            end
        end
        if turtle.getFuelLevel()<fuelReq then
            error("insufficient fuel to complete planting")
        elseif turtle.getItemCount(4)>0 then
            turtle.dropDown()
        end
    end
    turtle.turnRight()
    for i=1,2 do turtle.forward() end
    turtle.turnLeft()

    if turtle.getItemCount(2)>1 then turtle.slect(2) turtle.dropDown(turtle.getItemCount(2)-1) end
    for nSlot=4,16 do
        if turtle.getItemCount(nSlot)>0 then
            turtle.select(nSlot)
            turtle.dropDown()
        end
    end
    if turtle.getItemCount(1)>1 then
        turtle.transferTo(3,turtle.getItemCount(1)-1)
    end
    turtle.select(3)
    while turtle.getItemCount(3)<60 and turtle.suckDown() do if not turtle.compareTo(1) then turtle.dropUp() end end
    turtle.select(4)
    while turtle.suckUp() do turtle.dropDown() end
    if turtle.getItemCount(3)<60 then
        error("insufficient seeds to complete planting")
    end

    --PLANT/HARVEST
    turtle.select(run==1 and 3 or 2)
    for side=1,2 do
        for a=1,2 do
            for i=1,5 do turtle.forward() turtle[(run==1 and "place" or "dig").."Down"]() end
            if a==1 then turtle.forward() end
        end
        if side==1 then
            turtle.turnRight() turtle.forward() turtle.turnRight()
        else
            turtle.turnLeft() turtle.forward() turtle.turnLeft()
        end
        for a=1,2 do
            for i=1,4 do turtle.forward() if i~=4-a then turtle[(run==1 and "place" or "dig").."Down"]() end end
            if a==1 then turtle.forward() end
        end
        if side==2 then
            turtle.turnRight() turtle.forward() turtle.turnRight()
        else
            turtle.turnLeft() turtle.forward() turtle.turnLeft()
        end
        for a=1,2 do
            for i=1,4 do
                if a==1 then
                    turtle[(run==1 and "place" or "dig").."Down"]() turtle.forward()
                else
                    turtle.forward() turtle[(run==1 and "place" or "dig").."Down"]()
                end
            end
        end
        if side==1 then
            turtle.turnRight() turtle.forward() turtle.turnRight()
        else
            turtle.turnLeft() turtle.forward() turtle.turnLeft()
        end
        for a=1,2 do
            for i=1,3 do turtle.forward() turtle[(run==1 and "place" or "dig").."Down"]() end
            if a==1 then turtle.forward() end
        end
        if side==2 then
            turtle.turnRight() turtle.forward() turtle.turnRight()
        else
            turtle.turnLeft() turtle.forward() turtle.turnLeft()
        end
        for a=1,2 do
            turtle.forward() turtle.forward() turtle[(run==1 and "place" or "dig").."Down"]()
        end
        if side==1 then
            turtle.turnLeft()
        else
            turtle.turnRight()
        end
        for i=1,(side==1 and 6 or 4) do turtle.forward() end
        if side==1 then
            turtle.turnLeft()
        else
            turtle.turnRight()
        end
        for i=1,7 do turtle.forward() end
        turtle.turnLeft()
        if side==2 and run==2 then for i=1,2 do turtle.forward() end end
        turtle.turnLeft()
    end
    if run==1 then
        turtle.select(3)
        turtle.dropDown()
        term.clear()
        term.setCursorPos(1,1)
        print("waiting for seeds to grow.")
        for min=37,0,-1 do
            for sec=60,0,-1 do
                term.setCursorPos(1,2)
                write((min<10 and "0" or "")..min..":"..(sec<10 and "0" or "")..sec)
                sleep(1)
            end
        end
        term.clear()
        term.setCursorPos(1,1)
        print("Harvesting")
    else
        for i=1,16 do
            turtle.select(i)
            if i>=2 then
                turtle.dropDown(turtle.getItemCount(i)-1)
            else
                turtle.dropDown()
            end
        end
        if side==2 then
            turtle.turnLeft()
            for i=1,2 do turtle.forward() end
            turtle.turnRight()
        end
    end
end