Lazullia

local isCalibrated = false
local isFacingNormal = true
local isRightward = false --Which way from the start do the crops go
local fuelNeeded = 80 --Starts defined for calibration
local timer = 45 --Seconds
local height = 0
local width = 1

--turtle.inspect [bool, content[name, metadata], error]  name=thaumicbases:lazullia

function Calibrate(crop)
    if Refuel(fuelNeeded) == false then
        turtle.turnLeft()
        if RestockFuel(fuelNeeded) == true then
            Refuel(fuelNeeded)
            turtle.turnRight()
        else
            print(math.ceil(((fuelNeeded - turtle.getFuelLevel()) / 80)), ' coal required for calibration.')
            turtle.turnRight()
            return
        end
    end
    print('Calibrating...')

    --Find height
    turtle.up()
    turtle.forward()
    while true do
        local inspected = {turtle.inspectDown()}
        if inspected[1] ~= false and string.find(inspected[2].name, crop) then
            height = height + 1
            turtle.forward()
        else
            break
        end
    end

    --Position turtle for width
    turtle.back()
    turtle.turnLeft()
    turtle.forward()
    local inspected = {turtle.inspectDown()}
    if inspected[1] == true and string.find(inspected[2].name, crop) == true then
        isRightward = false
    else
        isRightward = true
        turtle.back()
        turtle.turnRight()
        turtle.turnRight()
        turtle.forward()
    end

    --Find width
    while true do
        local inspected = {turtle.inspectDown()}
        if inspected[1] ~= false and string.find(inspected[2].name, crop) then
            width = width + 1
            turtle.forward()
        else
            break
        end
    end

    --Return
    turtle.turnLeft()
    turtle.turnLeft()
    for i = 1, width, 1 do
        turtle.forward()
    end
    turtle.turnLeft()
    for i = 1, height, 1 do
        turtle.forward()
    end
    turtle.turnRight()
    turtle.turnRight()
    turtle.down()

    --Get required fuel
    if math.floor(math.fmod(width,2)) == (width/2) then
        fuelNeeded = height*width + width --if even
    else
        fuelNeeded = height*width + height+width --if odd
    end

    --Display info
    print('Calibration completed!\n')

    print('Height: ', height)
    print('Width: ', width)
    print('Expected ', crop, ': ', height*width)
    print('Charcoal per run: ', fuelNeeded/80)

    isCalibrated = true
end

function Refuel(RequiredFuel)
    for i = 1, 16, 1 do
        if turtle.getFuelLevel() >= RequiredFuel then --When refueled
            print('Fuel checked')
            return true
        elseif turtle.getItemDetail(i) and turtle.getItemDetail(i).name == "minecraft:coal" then --Continue refill
            turtle.select(i)
            turtle.refuel(math.ceil(((RequiredFuel - turtle.getFuelLevel()) / 80)))
            if turtle.getFuelLevel() >= RequiredFuel then --When refueled
                print('Fuel checked')
                return true
            end
        end
    end
    if turtle.getFuelLevel() < RequiredFuel then --When failed
        print('Not enough fuel')
        return false
    end
end

function Deposit(itemName)
    local count = 0
    for i = 1, 16, 1 do
        turtle.select(i)
        local selectedDetail = turtle.getItemDetail()
        if selectedDetail and string.find(selectedDetail.name, itemName) then
            turtle.drop()
            count = count + selectedDetail.count
        end
    end
    print(count, itemName, 'deposited.')
end

function Harvest(maxGrowth, seedName)
    local state, contents, err = turtle.inspectDown()
    if contents.metadata == nil or contents.metadata < maxGrowth then --Skip ungrown crop
        return
    elseif contents.metadata >= maxGrowth then --Harvest grown crop
        turtle.digDown()
        for i = 1, 16, 1 do
            local selectedDetail = turtle.getItemDetail(i)
            if selectedDetail and string.find(selectedDetail.name, seedName) then --Replant seed
                turtle.select(i)
                turtle.placeDown()
                turtle.select(1)
                return
            end
        end
    end
end

function Idle(Timer)
    os.startTimer(Timer) --45 sec
    local evt = {os.pullEvent()}
    if evt[1] == 'timer' and Refuel(fuelNeeded) then --On timer and fueled
        isFacingNormal = true

        --Display
        --term.clear()
        --term.setCursorPos(1,1)

        return false
    elseif evt[1] == 'timer' then --On timer, fuel required
        turtle.turnLeft()
        if RestockFuel(fuelNeeded) then --Restock fuel
            turtle.turnRight()
            if Refuel(fuelNeeded) then --Refuel
                return false
            end
        else --Restock failure
            turtle.turnRight()
            return true
        end
    else
        return true
    end
end

function RestockFuel(RequiredFuel) --TODO: simplify this shit
    print('Restocking fuel...')
    local coalSlot
    for i = 1, 16, 1 do
        local detail = turtle.getItemDetail(i)
        if (detail ~= nil and detail.name == "minecraft:coal") then
            coalSlot = i
            break
        elseif detail == nil then
            coalSlot = i
            break
        end
    end
    for i = 1, 16, 1 do
        turtle.select(i)
        if (turtle.getItemDetail() ~= nil) and (turtle.getItemDetail().name == "minecraft:coal") then
            turtle.transferTo(coalSlot)
        end
    end
    turtle.select(coalSlot)
    turtle.suck(turtle.getItemSpace())
    if turtle.getItemCount(coalSlot) >= math.ceil(((RequiredFuel - turtle.getFuelLevel()) / 80)) then
        print('Restocking successful')
        return true
    else
        print('Restocking failed!')
        return false
    end
end

function ReturnHome()
    if isFacingNormal and isRightward then --O:1
        print('Running O:1')
        turtle.turnLeft()
        for i = 1, width-1, 1 do
            turtle.forward()
        end
        turtle.turnLeft()
        for i = 1, height, 1 do
            turtle.forward()
        end
        turtle.down()
    elseif isFacingNormal and isRightward == false then --O:2
        print('Running O:2')
        turtle.turnRight()
        for i = 1, width-1, 1 do
            turtle.forward()
        end
        turtle.turnRight()
        for i = 1, height, 1 do
            turtle.forward()
        end
        turtle.down()
    elseif isFacingNormal == false and isRightward then --O:3
        print('Running O:3')
        turtle.turnRight()
        for i = 1, width-1, 1 do
            turtle.forward()
        end
        turtle.turnLeft()
        turtle.forward()
        turtle.down()
    elseif isFacingNormal == false and isRightward == false then --O:4
        print('Running O:4')
        turtle.turnLeft()
        for i = 1, width-1, 1 do
            turtle.forward()
        end
        turtle.turnRight()
        turtle.forward()
        turtle.down()
    end
end

function Rows(seedName)
    for i = 1, width, 1 do
        for i = 1, height-1, 1 do
            turtle.forward()
            Harvest(7, seedName)
        end
        if i < width then
            if isFacingNormal and isRightward then  --Turn right
                turtle.turnRight()
                turtle.forward()
                turtle.turnRight()
                isFacingNormal = not isFacingNormal
                print('Normal: ', isFacingNormal)
                Harvest(7, seedName)
            elseif isFacingNormal and isRightward == false then  --Turn left
                turtle.turnLeft()
                turtle.forward()
                turtle.turnLeft()
                isFacingNormal = not isFacingNormal
                print('Normal: ', isFacingNormal)
                Harvest(7, seedName)
            elseif isFacingNormal == false and isRightward then --Turn left
                turtle.turnLeft()
                turtle.forward()
                turtle.turnLeft()
                isFacingNormal = not isFacingNormal
                print('Normal: ', isFacingNormal)
                Harvest(7, seedName)
            elseif isFacingNormal == false and isRightward == false then --Turn right
                turtle.turnRight()
                turtle.forward()
                turtle.turnRight()
                isFacingNormal = not isFacingNormal
                print('Normal: ', isFacingNormal)
                Harvest(7, seedName)
            end
        end

    end
end

--Main
while true do
    if not isCalibrated then --Calibrate
        Calibrate('lazullia')
        if not isCalibrated then
            sleep(timer)
        end
    elseif Idle(timer) == false and isCalibrated then --Harvest crops after timer
        --This is a fucking mess
        --This looping rapidly, Idle(timer) == false not yet tested
        print('Harvesting...')
        turtle.up()
        turtle.forward()
        Harvest(7, seedName)
        Rows("seed")
        ReturnHome()
        Deposit("dye")
        turtle.turnRight()
        turtle.turnRight()
        print('Harvest completed.')
    end
end