CC ChickenFarm sorting machine

--
-- Chicken Farm sorting machine
--

local delay = .5
local CHICKEN = "minecraft:cooked_chicken"
local FEATHER = "minecraft:feather"
local w,h = term.getSize()
local count = {
    [CHICKEN] = 0,
    [FEATHER] = 0
}

local function initFacing()
    local b, d = turtle.inspect()
    if not b then
        return
    elseif d.name == "minecraft:hopper" then
        turtle.turnLeft()
        turtle.turnLeft()
        return
    else
        turtle.turnLeft()
        initFacing()
        return
    end
end

local function selectSlot(n)
    if turtle.getSelectedSlot() ~= n then
        turtle.select(n)
    end
end

local function facingChest(name)
    initFacing()
    if name == CHICKEN then
        turtle.turnLeft()
    elseif name == FEATHER then
        turtle.turnRight()
    else
        return false
    end
    return true
end

-- Formate un nombre de secondes en dur?e lisible
local iniClock = os.clock()
local function timeStr()
    local sec = os.clock() - iniClock
    local d = math.floor(sec/86400) --24*60*60 sec
    local h = math.floor(sec/3600)%24 -- 60x60 sec
    local m = math.floor(sec/60)%60 -- 60sec
    local s = math.floor(sec%60) --Reste
    local str = ""
    if d>0 then str = d>1 and d.." days " or "1 day " end
    if h>0 then str = str..h.."h" end
    if m>0 then str = str..(m>9 and m or "0"..m) end
    if h==0 then str = m>0 and str..":"..(s>9 and s or "0"..s) or s.."s" end
    return str
end

local function store()
    for slot=1,16 do
        local d = turtle.getItemDetail(slot)
        if d and d.name then
            count[d.name] = count[d.name] and count[d.name] + d.count or d.count
            if facingChest(d.name) then
                selectSlot(slot)
                turtle.drop()
            end
            selectSlot(slot%16+1)
        end
    end
    initFacing()
end

local function output(str,line)
    local x,y = term.getCursorPos()
    term.setCursorPos(1,line)
    term.clearLine()
    term.write(tostring(str))
    term.setCursorPos(x,y)
end

local function display()
    term.clear()
    --Header
    term.setTextColor(colors.black)
    term.setBackgroundColor(colors.white)
    output(string.format("KFC Sorter | %s", timeStr()),1)
    term.setTextColor(colors.white)
    term.setBackgroundColor(colors.black)
    output(string.rep(string.char(131), w), 2)
    --Item count
    output(string.format("Chicken: %s", count[CHICKEN]), 3)
    output(string.format("Feather: %s", count[FEATHER]), 4)
    local line = 5
    for n, c in pairs(count) do
        if n ~= CHICKEN and n ~= FEATHER then
            output(string.format("%s %s", n, c), line)
            line = line+1
        end
        if line > h then
            break
        end
    end
end

local function main()
    local tick, e, p = os.startTimer(delay), 0
    while true do
        selectSlot(1)
        display()
        e, p = os.pullEvent()
        if e == "timer" and p == tick then
            tick = os.startTimer(delay)
            store()
        elseif e == "turtle_inventory" then
            os.cancelTimer(tick)
            store()
            tick = os.startTimer(delay)
        end
    end
end

main()