MFarm

-- MFarm: Start the farming process

-- Function to load the setup data
function loadSetup()
    if not fs.exists("farmSetup") then
        print("Setup not found. Please run MFarmSetup first.")
        return nil, nil, nil, nil, nil
    end

    local file = fs.open("farmSetup", "r")
    local seedItem = file.readLine()
    local fuelItem = file.readLine()
    local fullyGrownItem = file.readLine()
    local farmSize = tonumber(file.readLine())
    local sleepTime = tonumber(file.readLine())
    file.close()

    return seedItem, fuelItem, fullyGrownItem, farmSize, sleepTime
end

-- Function to check and refuel the turtle
function checkAndRefuel(fuelItem)
    if turtle.getFuelLevel() < 500 then
        for slot = 1, 16 do
            turtle.select(slot)
            local item = turtle.getItemDetail()
            if item and item.name == fuelItem then
                turtle.refuel()
                if turtle.getFuelLevel() >= 500 then
                    break
                end
            end
        end
        if turtle.getFuelLevel() < 500 then
            print("Turtle needs more fuel. Setup failed.")
            return false
        end
    end
    return true
end

-- Function to sort items from turtle inventory and chest
function sortItems(seedItem, fuelItem, fullyGrownItem)
    local hasSeed = false
    local hasFuel = false
    local hasFullyGrown = false

    -- Check turtle inventory
    for slot = 1, 16 do
        turtle.select(slot)
        local item = turtle.getItemDetail()
        if item then
            if item.name == seedItem then
                turtle.transferTo(1)
                hasSeed = true
            elseif item.name == fuelItem then
                turtle.transferTo(2)
                hasFuel = true
            elseif item.name == fullyGrownItem then
                turtle.transferTo(3)
                hasFullyGrown = true
            end
        end
    end

    -- Check chest below
    if not hasSeed or not hasFuel or not hasFullyGrown then
        for slot = 1, 16 do
            turtle.select(slot)
            if not hasSeed then
                turtle.suckDown()
                local item = turtle.getItemDetail()
                if item and item.name == seedItem then
                    turtle.transferTo(1)
                    hasSeed = true
                else
                    turtle.dropDown()
                end
            end
            if not hasFuel then
                turtle.suckDown()
                local item = turtle.getItemDetail()
                if item and item.name == fuelItem then
                    turtle.transferTo(2)
                    hasFuel = true
                else
                    turtle.dropDown()
                end
            end
            if not hasFullyGrown then
                turtle.suckDown()
                local item = turtle.getItemDetail()
                if item and item.name == fullyGrownItem then
                    turtle.transferTo(3)
                    hasFullyGrown = true
                else
                    turtle.dropDown()
                end
            end
        end
    end

    return hasSeed, hasFuel, hasFullyGrown
end

-- Function to return items to the chest
function returnItems()
    for slot = 4, 16 do
        turtle.select(slot)
        turtle.dropDown()
    end
end

-- Function to farm crops
function farm(size)
    turtle.select(1)  -- Ensure seeds are selected
    turtle.forward()  -- Move forward to start farming

    for i = 1, size do
        for j = 1, size do
            if turtle.detectDown() then
                turtle.digDown()
            end
            turtle.placeDown()
            if j < size then
                turtle.forward()
            end
        end
        if i < size then
            if i % 2 == 1 then
                turtle.turnRight()
                turtle.forward()
                turtle.turnRight()
            else
                turtle.turnLeft()
                turtle.forward()
                turtle.turnLeft()
            end
        end
    end

    -- Return to the starting position
    turtle.forward()
    turtle.turnLeft()
    for k = 1, size do
        turtle.forward()
    end
    turtle.turnLeft()
    for k = 1, size + 1 do
        turtle.forward()
    end
    turtle.turnLeft()
    turtle.forward()
    turtle.turnLeft()
end

-- Function to check fuel level and refuel if necessary
function manageFuel(fuelItem)
    if turtle.getFuelLevel() < 500 then
        print("Refueling...")
        checkAndRefuel(fuelItem)
    end

    if turtle.getFuelLevel() < 500 then
        print("Turtle needs more fuel. Setup failed.")
        return false
    end

    return true
end

-- Function to manage the farming cycle
function farmingCycle(seedItem, fuelItem, fullyGrownItem, farmSize, sleepTime)
    while true do
        farm(farmSize)

        -- Dump items from slots 4-16 into the chest below
        returnItems()

        -- Check and manage fuel
        if not manageFuel(fuelItem) then
            print("Turtle needs more fuel. Pausing for " .. sleepTime .. " seconds.")
            os.sleep(sleepTime)  -- Wait for the specified sleep time
            print("Retrying farming process.")
        else
            print("Fuel level sufficient. Pausing for " .. sleepTime .. " seconds.")
            os.sleep(sleepTime)  -- Wait for the specified sleep time
        end
    end
end

-- Main function
function main()
    local seedItem, fuelItem, fullyGrownItem, farmSize, sleepTime = loadSetup()
    if not seedItem then
        return
    end

    -- Confirm setup information
    print("Setup Information:")
    print("Seed: " .. seedItem)
    print("Fuel: " .. fuelItem)
    print("Fully Grown Crop: " .. fullyGrownItem)
    print("Farm Size: " .. farmSize .. "x" .. farmSize)
    print("Sleep Time: " .. sleepTime .. " seconds")
    print("")
    print("Is this information correct? (yes/no)")
    local confirmation = string.lower(read())

    if confirmation == "yes" then
        if checkAndRefuel(fuelItem) then
            print("Checking for required items in inventory and chest...")

            local hasSeed, hasFuel, hasFullyGrown = sortItems(seedItem, fuelItem, fullyGrownItem)

            if hasSeed and hasFuel and hasFullyGrown then
                print("All required items are present and sorted into the correct slots.")
                print("Ensuring seeds are in the first slot...")
                turtle.select(1)
                print("Setup confirmed.")
                print("Please manually place the seeds in the first slot of the turtle's inventory.")
                print("Press any key to continue once this is done.")
                os.pullEvent("key")
                print("Ready to start farming.")
                farmingCycle(seedItem, fuelItem, fullyGrownItem, farmSize, sleepTime)  -- Start the farming cycle
            else
                print("Required items are missing. Setup failed.")
                returnItems()
            end
        else
            print("Setup failed. Please provide more fuel.")
        end
    else
        print("Setup information incorrect. Please run MFarmSetup again.")
    end
end

-- Start the farming process
main()