local fuelSlot = 1
local torchSlot = 2
local firstItem,lastItem = 3,16

local currentHeigt = 1
local currentLen = 1
local currentWith = 2

local startHeight = 1
local startLen = 1
local startWith = 2

local tunnel length = 0

local fuelBarrel = nil
local torchBarrel = nil


local NORTH = 1
local EAST = 2
local SOUTH = 3
local WEST = 4
local currentFace = NORTH

function placeAll(all)
    local start = firstItem
    if(all) then
        start = 1
    end
    local i = firstItem
    while i <= lastItem do
        turtle.select(i)
        turtle.drop()
        if not turtle.getItemDetail() then
            i = i + 1
        else
            print("Chest is full, stopping")
            exit()
        end
    end
end

function checkAndReset()
    local lookingAt = nil
    local itemData = nil
    lookingAt, itemData = turtle.inspect()
    if lookingAt then
        if string.match(itemData.name, "chest") then
            print("Found Chest")
            placeAll(true)
        else
            print("Missing loot Chest")
            return false
        end
    else
        print("Missing loot Chest")
        return false
    end
    turtle.turnLeft()
    turtle.forward()
    turtle.turnRight()
    lookingAt, itemData = turtle.inspect()
    if lookingAt then
        if string.match(itemData.name, "barrel") then
            print("found barrel")
            turtle.select(1)
            turtle.suck()
            item = turtle.getItemDetail()
            turtle.drop()
            if item then
                if string.match(item.name, "coal") then
                    fuelBarrel = 1
                elseif string.match(item.name, "torch") then
                    torchBarrel = 1
                else
                    print("Missing coal or torch in barrel")
                    return false
                end
            else
                print("Missing coal or torch in barrel")
                return false
            end

        else
            print("Missing coal or torch barrel")
            return false
        end
    else
        print("Missing coal or torch barrel")
        return false
    end

    turtle.up()
    lookingAt, itemData = turtle.inspect()

    if lookingAt then
        if string.match(itemData.name, "barrel") then
            print("found barrel")
            turtle.select(1)
            turtle.suck()
            item = turtle.getItemDetail()
            turtle.drop()
            if item then
                if string.match(item.name, "coal") then
                    fuelBarrel = 2
                elseif string.match(item.name, "torch") then
                    torchBarrel = 2
                else
                    print("Missing coal or torch in barrel")
                    return false
                end
            else
                print("Missing coal or torch in barrel")
                return false
            end

        else
            print("Missing coal or torch barrel")
            return false
        end
    else
        print("Missing coal or torch barrel")
        return false
    end

    turtle.down()
    turtle.turnRight()
    turtle.forward()
    turtle.turnLeft()
    return true

end

function setDirection(direction)
    local turnAmount = currentFace - direction
    if turnAmount == 1 or turnAmount == -3 then
        turtle.turnRight()
    end
    if turnAmount == 2 or turnAmount == -2 then
        turtle.turnRight()
        turtle.turnRight()
    end
    if turnAmount == -1 or turnAmount == 3 then
        turtle.turnLeft()
    end
end


function Main()
    if checkAndReset() then
        print("All good")
    else
        print("sumting wong")
    end
    setDirection(NORTH)
    setDirection(EAST)
    setDirection(SOUTH)
    setDirection(WEST)
    setDirection(NORTH)
    setDirection(WEST)
    setDirection(SOUTH)
    setDirection(EAST)
    setDirection(NORTH)

end

Main()