--Local
local distance = 0 -- How Far Did User Pick
local onlight = 0 -- When to Place Torch
local torch = turtle.getItemCount(1) -- How many items are in slot 1 (torch)
local chest = turtle.getItemCount(2) -- How many items are in slot 2 (chest)
local ItemFuel = turtle.getItemCount(3) -- How many items are in slot 3 (Fuel)
local MD = 3 -- How Many Blocks Apart From Each Mine
local MineTimes = 0 -- If Multi Mines Are ON then This will keep Count
local Fuel = 0 -- if 2 then it is unlimited no fuel needed
local NeedFuel = 0 -- If Fuel Need Then 1 if not Then 0
local Error = 0 -- 0 = No Error and 1 = Error
local Way = 0 -- 0 = Left and 1 = Right

--Checking
local function Check()
        if torch == 0 then
                print("There are no torch's in Turtle")
                Error = 1
        else
                print("There are torch's in turtle")
        end
        if chest == 0 then
                print("there are no chests")
                Error = 1
        else
                print("There are chest in turtle")
        end
        if ItemFuel == 0 then
                print("No Fuel Items")
                error = 1
        else
                print("there is fuel")
        end
        repeat
                if turtle.getFuelLevel() == "unlimited" then
                        print("NO NEED FOR FUEL")
                        Needfuel = 0
                elseif turtle.getFuelLevel() < 100 then
                        turtle.select(3)
                        turtle.refuel(1)
                        Needfuel = 1
                        ItemFuel = ItemFuel - 1
                elseif NeedFuel == 1 then
                        Needfuel = 0
                end
        until NeedFuel == 0
end

-- Recheck if user forget something turtle will check after 15 sec
local function Recheck()
        torch = turtle.getItemCount(1)
        chest = turtle.getItemCount(2)
        ItemFuel = turtle.getItemCount(3)
        Error = 0
end

--Mining
local function ForwardM()
        repeat
                if turtle.detect() then
                        turtle.dig()
                end
                if turtle.forward() then -- sometimes sand and gravel and block and mix-up distance
                        TF = TF - 1
                        onlight = onlight + 1
                end
                if turtle.detectUp() then
                        turtle.digUp()
                end
                turtle.select(4)
                turtle.placeDown()
                if onlight == 8 then -- Every 10 Block turtle place torch
                        if torch > 0 then
                                turtle.turnLeft()
                                turtle.turnLeft()
                                turtle.select(1)
                                turtle.place()
                                turtle.turnLeft()
                                turtle.turnLeft()
                                torch = torch - 1
                                onlight = onlight - 8
                        else
                                print("turtle run out of torchs")
                                os.shutdown()
                        end
                end
                if turtle.getItemCount(16)>0 then -- If slot 16 in turtle has item slot 5 to 16 will go to chest
                        if chest > 0 then
                                turtle.select(2)
                                turtle.digDown()
                                turtle.placeDown()
                                chest = chest - 1
                                for slot = 5, 16 do
                                        turtle.select(slot)
                                        turtle.dropDown()
                                        sleep(1.5)
                                end
                                turtle.select(5)
                        else
                                print("turtle run out of chest")
                                os.shutdown()
                        end
                end
                repeat
                        if turtle.getFuelLevel() == "unlimited" then
                                print("NO NEED FOR FUEL")
                                Needfuel = 0
                        elseif turtle.getFuelLevel() < 100 then
                                turtle.select(3)
                                turtle.refuel(1)
                                Needfuel = 1
                                ItemFuel = ItemFuel - 1
                        elseif ItemFuel == 0 then
                                print("turtle run out of fuel")
                                os.shutdown()
                        elseif NeedFuel == 1 then
                                Needfuel = 0
                        end
                until NeedFuel == 0
        until TF == 0
end

--Warm Up For Back Program
local function WarmUpForBackProgram() -- To make turn around so it can go back
        turtle.turnLeft()
        turtle.turnLeft()
        turtle.up()
end


 -- Return
local function MineOnWayBackl()
        if Way == 1 then
                turtle.turnLeft()
        else
                turtle.turnRight()
        end
        repeat
                if turtle.detect() then
                        turtle.dig()
                end
                if turtle.forward() then
                        MD = MD - 1
                end
                if turtle.detectUp() then
                        turtle.digUp()
                end
        until MD == 0
        if Way == 1 then
                turtle.turnLeft()
        else
                turtle.turnRight()
        end
end

-- --Back Program
-- local function Back()
--         repeat
--                 if turtle.forward() then -- sometimes sand and gravel and block and mix-up distance
--                         TB = TB - 1
--                 end
--                 if turtle.detect() then -- Sometimes sand and gravel can happen and this will fix it
--                         if TB ~= 0 then
--                                 turtle.dig()
--                         end
--                 end
--         until TB == 0
-- end

-- Multimines Program
local function MultiMines()
        if Way == 1 then
                turtle.turnLeft()
                turtle.down()
        else
                turtle.turnRight()
                turtle.down()
        end
        repeat
                if turtle.detect() then
                        turtle.dig()
                end
                if turtle.forward() then
                        MD = MD - 1
                end
                if turtle.detectUp() then
                        turtle.digUp()
                end
        until MD == 0
        if Way == 1 then
                turtle.turnLeft()
        else
                turtle.turnRight()
        end
        if MineTimes == 0 then
                print("Turtle is done")
        else
                MineTimes = MineTimes - 1
        end
end

-- Restart
local function Restart()
        TF = distance
        TB = distance
        MD = 3
        onlight = 0
end


-- Starting
function Start()
        repeat
                ForwardM()
                WarmUpForBackProgram()
                MineOnWayBackl()
                MultiMines()
                Restart()
        until MineTimes == 0
end

-- Start
print("How deep is the turtle going?")
input = io.read()
distance = tonumber(input)
TF = distance
TB = distance
print("Head left or head right?")
print("0 = Left and 1 = Right")
input2 = io.read()
Way = tonumber(input2)
print("How many strip mines?")
input3 = io.read()
MineTimes = tonumber(input3)
Check()
if Error == 1 then
        repeat
                sleep(10)
                Recheck()
                Check()
        until Error == 0
end
Start()