-- Function to check if the turtle has enough fuel to move
local function checkFuel()
    if turtle.getFuelLevel() < 100 then
        for slot = 1, 16 do
            turtle.select(slot)
            if turtle.refuel(1) then
                break
            end
        end
    end
end

-- Function to drop all items from inventory into the chest
local function dropItems()
    turtle.turnLeft()
    turtle.turnLeft()
    for slot = 2, 16 do
        turtle.select(slot)
        turtle.drop()
    end
    turtle.turnLeft()
    turtle.turnLeft()
end

-- Setup section
print("Welcome to the Mining Turtle Script Setup!")
print("Please answer the following questions:")
print()

-- Get starting height
print("At which height should the turtle start mining? (Enter a number):")
local startHeight = tonumber(read())

-- Get tunnel height
print("What should be the height of the tunnel? (Enter a number):")
local tunnelHeight = tonumber(read())

-- Choose mining mode
print("Mining Mode:")
print("1. Mine All Blocks")
print("2. Mine Ores Only")
print("Enter 1 or 2:")
local miningMode = tonumber(read())

-- Get tunnel dimensions
print("Enter the desired tunnel dimensions:")
print("Length:")
local length = tonumber(read())
print("Width:")
local width = tonumber(read())

-- Choose whether to refuel with coal found while mining
print("Should the turtle refuel with coal it finds while mining?")
print("1. Yes")
print("2. No")
print("Enter 1 or 2:")
local refuelOption = tonumber(read())
local shouldRefuel = (refuelOption == 1)

-- Main mining function
local function mine()
    local currentHeight = 0

    while currentHeight < tunnelHeight do
        -- Check and refill fuel
        checkFuel()

        -- Dig down to the starting height
        while currentHeight > startHeight do
            turtle.down()
            currentHeight = currentHeight - 1
        end

        -- Mine ores in the current layer
        for h = 1, tunnelHeight do
            for i = 1, width do
                for j = 1, length - 1 do
                    while turtle.detect() do
                        turtle.dig()
                    end
                    turtle.forward()
                end

                -- Check and refill fuel after each row
                checkFuel()

                -- Turn around at the end of each row
                if i < width then
                    if i % 2 == 0 then
                        turtle.turnRight()
                        while turtle.detect() do
                            turtle.dig()
                        end
                        turtle.forward()
                        turtle.turnRight()
                    else
                        turtle.turnLeft()
                        while turtle.detect() do
                            turtle.dig()
                        end
                        turtle.forward()
                        turtle.turnLeft()
                    end
                end
            end

            -- Go up to the next layer, if not the last layer
            if h < tunnelHeight then
                for k = 1, h do
                    turtle.up()
                    currentHeight = currentHeight + 1
                end
            end
        end

        -- Return to the surface
        while currentHeight > 0 do
            turtle.up()
            currentHeight = currentHeight - 1
        end

        -- Deposit items into the chest
        dropItems()

        -- Refuel with coal if required and available
        if shouldRefuel then
            turtle.select(1)
            while turtle.detect() do
                turtle.dig()
            end
            turtle.refuel()
        end
    end
end

-- Start the mining process
mine()