coal transfer

chests = {
    "quark:oak_chest",
    "charm:oak_chest",
}
fuel = {
    "minecraft:coal_block",
    "actuallyadditions:block_misc",
    "quark:charcoal_block",
    "minecraft:charcoal"
}

wood = {
    "byg:fir_log"
}

function getFuelIndex()
    for slotNum = 1, 16, 1 do
        local Item = turtle.getItemDetail(slotNum)
        if(Item ~=nil) then
            for fuelIndex =1, #fuel, 1 do
                if(Item.name == fuel[fuelIndex]) then
                return slotNum
                end
            end
        end
    end
end

function refuel()
    if(turtle.getFuelLevel() < 400) then
    local Index = getFuelIndex()
      if(Index ~= nil) then
      turtle.select(Index)
      turtle.refuel(2)
      end
    end
end

function getCoalIndex()
    for slotNum = 1, 16, 1 do
        local item = turtle.getItemDetail(slotNum)
        if(item ~= nil)  then
            if(item.name == "minecraft:charcoal") then
                return slotNum
            end
        end
    end
end

function getCoalCount()
    coalCount = 0
    for slotNum = 1,16,1 do
        local whatsHere = turtle.getItemDetail(slotNum)
        if(whatsHere ~= nil) then
            if (whatsHere.name == "minecraft:charcoal") then
            turtle.select(slotNum)
            coalCount = coalCount + turtle.getItemCount()
            print("Current coal Count A-",coalCount)
            end
        end
    end
    print("Current coal Count B-",coalCount)
end

function dropCoal()
    getCoalCount()
    for slotNum = 1, 16, 1 do
        local item = turtle.getItemDetail(slotNum)
        if(item ~= nil) then
            if(item.name == "minecraft:charcoal") then
            print("Droppign - " .. item.name)
            turtle.select(slotNum)
            turtle.dropDown()
            end
        end
    end
end

function fillCraftingGrid()
    turtle.select(1)
    turtle.suckDown(coalCount / 9)
    turtle.select(2)
    turtle.suckDown(coalCount / 9)
    turtle.select(3)
    turtle.suckDown(coalCount / 9)
    turtle.select(5)
    turtle.suckDown(coalCount / 9)
    turtle.select(6)
    turtle.suckDown(coalCount / 9)
    turtle.select(7)
    turtle.suckDown(coalCount / 9)
    turtle.select(9)
    turtle.suckDown(coalCount / 9)
    turtle.select(10)
    turtle.suckDown(coalCount / 9)
    turtle.select(11)
    turtle.suckDown(coalCount / 9)
end

function getCoal()
    for i = 1, 5, 1 do
        turtle.suckUp()
        turtle.dropUp()
        turtle.forward()
    end
end

while true do
    getCoal()
    dropCoal()
    fillCraftingGrid()
    turtle.craft()
    refuel()
    if getFuelIndex ~= nil then
        turtle.select(getFuelIndex())
        turtle.dropUp(1)
        turtle.drop()
    end
    turtle.suckDown()
    turtle.turnLeft()
    turtle.turnLeft()
    for i = 1, 5, 1 do
        turtle.forward()
    end
    turtle.turnLeft()
    turtle.turnLeft()
    sleep(600)
end