dofile("screen.lua")

-- connecte l'écran sur les pins 18 et 19
attachscreen(18, 19, 0x3C)

-- connecte la bande de led sur le pin 21
neo = neopixel.attach(neopixel.WS2812B, pio.GPIO21, 8)

cls()
console("Welcome to pendu!")
console("by Lorem Impsum Corp.")

client = mqtt.client("Server", "mqtt.leizour.fr", 8883, true)
client:connect("student", "O99Rq8$F12NXzhL5caya")

playing = false
won = false

word = ""
letters_played = ""

function draw_ui()
    cls()
    if playing then
        console("mot à deviner: " .. word)
        console("lettres essayées: " .. letters_played)
        return
    end
    if won then
        console("Le mot " .. word .. " a été deviné !")
        console("en attente d'une proposition de mot...")
    end
end

function update_victory()

end

function broadcast_state()
    if playing then
        client:publish("pendu/gamestate", "PLAYING", mqtt.QOS0)
    else
        client:publish("pendu/gamestate", "WAITING", mqtt.QOS0)
    end
end

function handle_state_query(len, message, topic_len, topic_name)
    if topic_name != "pendu/gamestate" or message != "query" then
        return
    end
    broadcast_state()
end

client:subscribe("pendu/gamestate", mqtt.QOS0, handle_state_query)

function handle_word_suggestion(len, message, topic_len, topic_name)
    if topic_name != "pendu/word" or playing then
        return
    end
    word = message
    won = false
    playing = true
    broadcast_state()
end

client:subscribe("pendu/word", mqtt.QOS0, handle_word_suggestion)

function handle_letter(len, message, topic_len, topic_name)
    if topic_name != "pendu/letter" or not playing then
        return
    end
    letters_played = letters_played .. message
    update_victory()
    draw_ui()
end

client:subscribe("pendu/letter", mqtt.QOS0, handle_letter)