Turtle recycle counter

--- %%% enable this for initializing(this will reset all stats)
-- also enable save_stats , below the save_stats function
--scrap = 0
--gold_ore = 0
--gold_dust = 0
--emerald = 0
--ender_pearl = 0
--glowstone_dust = 0
--slime_ball = 0
--rubber = 0
--diamond = 0
--cake = 0
--- %%%

function load_stats()
    file = io.open('scrap', 'r')
    scrap = file:read()
    file:close()
    file = io.open('gold_ore', 'r')
    gold_ore = file:read()
    file:close()
    file = io.open('gold_dust', 'r')
    gold_dust = file:read()
    file:close()
    file = io.open('emerald', 'r')
    emerald = file:read()
    file:close()
    file = io.open('ender_pearl', 'r')
    ender_pearl = file:read()
    file:close()
    file = io.open('glowstone_dust', 'r')
    glowstone_dust = file:read()
    file:close()
    file = io.open('slime_ball', 'r')
    slime_ball = file:read()
    file:close()
    file = io.open('rubber', 'r')
    rubber = file:read()
    file:close()
    file = io.open('diamond', 'r')
    diamond = file:read()
    file:close()
    file = io.open('cake', 'r')
    cake = file:read()
    file:close()
end

function save_stats()
    file = io.open('scrap', 'w')
    file:write(scrap)
    file:close()
    file = io.open('gold_ore', 'w')
    file:write(gold_ore)
    file:close()
    file = io.open('gold_dust', 'w')
    file:write(gold_dust)
    file:close()
    file = io.open('emerald', 'w')
    file:write(emerald)
    file:close()
    file = io.open('ender_pearl', 'w')
    file:write(ender_pearl)
    file:close()
    file = io.open('glowstone_dust', 'w')
    file:write(glowstone_dust)
    file:close()
    file = io.open('slime_ball', 'w')
    file:write(slime_ball)
    file:close()
    file = io.open('rubber', 'w')
    file:write(rubber)
    file:close()
    file = io.open('diamond', 'w')
    file:write(diamond)
    file:close()
    file = io.open('cake', 'w')
    file:write(cake)
    file:close()
end

-- for initializing

--save_stats() -- for initializing

-- start code
print('loading stats')
load_stats()
sleep(1)
term.clear()

-- show start stats
term.setCursorPos(1,1)
term.write('scrap unboxed: ')
term.setCursorPos(16,1)
write(math.floor(scrap))

term.setCursorPos(1,2)
term.write('ender_pearls: ')
term.setCursorPos(15,2)
term.write(math.floor(ender_pearl))
term.setCursorPos(20,2)
term.write('avg scrap: ')
term.setCursorPos(30,2)
term.write(math.floor(scrap / ender_pearl))

term.setCursorPos(1,3)
term.write('Diamonds: ')
term.setCursorPos(11,3)
term.write(math.floor(diamond))
term.setCursorPos(16,3)
term.write('avg scrap: ')
term.setCursorPos(27,3)
term.write(math.floor(scrap / diamond))

--checker infinite loop
while true do
    if redstone.getInput('right') == true then
    scrap = scrap + 1
    term.setCursorPos(1,1)
    term.write('scrap unboxed: ')
    term.setCursorPos(16,1)
    write(math.floor(scrap))
    save_stats()
    sleep(0.25) -- time between 4 tick comparetor dispenser clock
    else
    sleep(.01) -- small cooldown between checking
    end

    for i = 1,16 do

        if turtle.getItemDetail(i) then
        check_item = turtle.getItemDetail(i)
        item_name = check_item.name
        term.setCursorPos(1,5)
        term.write("Last item: ")
        term.setCursorPos(12,5)
        term.write(item_name)

            if item_name == 'minecraft:gold_ore' then
            gold_ore = gold_ore + 1
            turtle.select(i)
            turtle.drop()
            save_stats()
            elseif item_name == 'minecraft:emerald' then
            emerald = emerald + 1
            turtle.select(i)
            turtle.drop()
            term.setCursorPos(1,6)
            term.write("dropping: ")
            term.setCursorPos(11,6)
            term.write(item_name)
            save_stats()
            elseif item_name == 'minecraft:ender_pearl' then
            ender_pearl = ender_pearl + 1
            turtle.select(i)
            turtle.drop()
            save_stats()
            term.setCursorPos(1,2)
            term.write('ender_pearls: ')
            term.setCursorPos(15,2)
            term.write(math.floor(ender_pearl))
            term.setCursorPos(20,2)
            term.write('avg scrap: ')
            term.setCursorPos(30,2)
            term.write(math.floor(scrap / ender_pearl))
            elseif item_name == 'minecraft:glowstone_dust' then
            glowstone_dust = glowstone_dust + 1
            turtle.select(i)
            turtle.drop()
            save_stats()
            elseif item_name == 'minecraft:cake' then
            cake = cake + 1
            turtle.select(i)
            turtle.drop()
            save_stats()
            elseif item_name == 'minecraft:slime_ball' then
            slime_ball = slime_ball + 1
            turtle.select(i)
            turtle.drop()
            save_stats()
            elseif item_name == 'minecraft:diamond' then
            diamond = diamond + 1
            turtle.select(i)
            turtle.drop()
            save_stats()
            term.setCursorPos(1,3)
            term.write('Diamonds: ')
            term.setCursorPos(11,3)
            term.write(math.floor(diamond))
            term.setCursorPos(16,3)
            term.write('avg scrap: ')
            term.setCursorPos(27,3)
            term.write(math.floor(scrap / diamond))
            elseif item_name == 'thermalfoundation:material' then
            gold_dust = gold_dust + 1
            turtle.select(i)
            turtle.drop()
            save_stats()
            elseif item_name == 'ic2:crafting' then
            rubber = rubber + 1
            turtle.select(i)
            turtle.drop()
            save_stats()
            end -- if statements
        end -- if getItemDetail

    end -- end for loop

end -- end while loop