added start command

Dockerfile

@@ -4,7 +4,7 @@ LABEL maintainer="Lord Baryhobal <lordbaryhobal@gmail.com>"
 
 RUN echo "Installing Typst" \
     && wget -q -O /tmp/typst.tar.xz https://github.com/typst/typst/releases/download/v0.11.1/typst-x86_64-unknown-linux-musl.tar.xz \
-    && tar -x /tmp/typst.tar.xz -C /tmp/ \
+    && tar -xf /tmp/typst.tar.xz -C /tmp/ \
     && mv /tmp/typst-x86_64-unknown-linux-musl/typst /usr/bin/typst \
     && chmod +x /usr/bin/typst \
     && rm -r /tmp/typst-x86_64-unknown-linux-musl \

src/beebot.py

@@ -12,6 +12,7 @@ import aiohttp
 import telegram.constants
 from bs4 import BeautifulSoup
 from telegram import Update, InlineKeyboardMarkup, InlineKeyboardButton
+from telegram.constants import ParseMode
 from telegram.ext import ApplicationBuilder, CommandHandler, ContextTypes, CallbackQueryHandler, Application
 
 log_dir = os.getenv("BEEBOT_LOGS")
@@ -96,6 +97,7 @@ class BeeBot:
         self.load_i18n()
 
         self.tg_app = ApplicationBuilder().token(self.tg_token).build()
+        self.tg_app.add_handler(CommandHandler("start", self.cmd_start))
         self.tg_app.add_handler(CommandHandler("week", self.cmd_week))
         self.tg_app.add_handler(CommandHandler("today", self.cmd_today))
         self.tg_app.add_handler(CommandHandler("settings", self.cmd_settings))
@@ -115,6 +117,11 @@ class BeeBot:
             return f"[{key}]"
         return self.langs[lang][key]
 
+    async def cmd_start(self, update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
+        logger.debug("Received /start")
+        lang = self.get_user_pref(update, context)["lang"]
+        await update.effective_chat.send_message(text=self.i18n(lang, "notif.start"), parse_mode=ParseMode.HTML)
+
     async def cmd_week(self, update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
         logger.debug("Received /week")
         await self.request_menu(update, context, False)
@@ -215,9 +222,14 @@ class BeeBot:
             async with self.fetch_lock:
                 if not os.path.exists(menu_path) or self.is_outdated(menu_id, today_only):
                     if today_only:
-                        await self.fetch_today_menu()
+                        available = await self.fetch_today_menu()
                     else:
-                        await self.fetch_week_menu()
+                        available = await self.fetch_week_menu()
+
+                    if not available:
+                        await msg.edit_text(self.i18n(prefs["lang"], "notif.unavailable"))
+                        return
+
             await msg.delete()
 
         # If image needs to be (re)generated
@@ -338,33 +350,41 @@ class BeeBot:
         self.cache[menu_id] = datetime.datetime.today().strftime("%Y-%m-%d")
         self.save_cache()
 
-    async def fetch_week_menu(self) -> None:
+    async def fetch_week_menu(self) -> bool:
         logger.info("Fetching week menu")
         today = datetime.datetime.today()
         delta = datetime.timedelta(days=today.weekday())
         monday = today - delta
         days = []
+        menus_count = 0
         for i in range(5):
             dt = datetime.timedelta(days=i)
             date = monday + dt
             menus = await self.fetch_menu(date)
+            menus_count += len(menus)
             days.append({
                 "date": date.strftime("%Y-%m-%d"),
                 "menus": menus
             })
+        if menus_count == 0:
+            return False
 
         self.save_menu(days, "week_menu", "menus_week.json")
+        return True
 
-    async def fetch_today_menu(self) -> None:
+    async def fetch_today_menu(self) -> bool:
         logger.info("Fetching today menu")
         today = datetime.datetime.today()
         menus = await self.fetch_menu(today)
+        if len(menus) == 0:
+            return False
         days = [{
             "date": today.strftime("%Y-%m-%d"),
             "menus": menus
         }]
 
         self.save_menu(days, "today_menu", "menus_today.json")
+        return True
 
     async def fetch_menu(self, date: datetime.date) -> list:
         url = self.MENU_URL.format(date=date.strftime("%Y-%m-%d"))

src/lang.json

@@ -10,7 +10,9 @@
     "menu.back_to_settings": "Retour aux paramètres",
     "setting.language": "Langue: {}",
     "setting.categories": "Catégories: {}",
-    "notif.wait_updating": "Le menu est en train d'être mis à jour, veuillez patienter..."
+    "notif.wait_updating": "Le menu est en train d'être mis à jour, veuillez patienter...",
+    "notif.unavailable": "Il semblerait que le menu ne soit actuellement pas disponible",
+    "notif.start": "<b>Salut, je suis BeeBot 🐝, le robot des menus de la cafétéria de l'HEI !</b>\n<i>(changer la langue / change language / Sprache ändern: /settings)</i>\n\nPour voir les menus de la <u>semaine</u>, utilisez la commande /week\nPour voir les menus du <u>jour</u>, utilisez /today\n\nSi vous souhaitez changer la <u>langue</u> dans laquelle je parle ou les <u>catégories de prix</u> affichées dans les menus, utilisez la commande /settings\n\n<b>Merci de ne pas spammer</b> afin de ne pas impacter l'utilisation de ce service par les autres personnes\n\n<b>Bon appétit ! 🍽</b>"
   },
   "en": {
     "category.student": "Student",
@@ -23,7 +25,9 @@
     "menu.back_to_settings": "Back to settings",
     "setting.language": "Language: {}",
     "setting.categories": "Categories: {}",
-    "notif.wait_updating": "The menu is being updated, please wait..."
+    "notif.wait_updating": "The menu is being updated, please wait...",
+    "notif.unavailable": "It seems that the menu is currently unavailable",
+    "notif.start": "<b>Hi, I'm BeeBot 🐝, the HEI cafeteria menu robot !</b>\n<i>(changer la langue / change language / Sprache ändern: /settings)</i>\n\nTo see the menus for the <u>week</u>, use the command /week\nTo see <u>today</u>'s menus, use /today\n\nIf you want to change the <u>language</u> I speak or the <u>price categories</u> displayed in the menus, use the command /settings\n\n<b>Please do not spam</b> to avoid affecting other people's use of this service\n\n<b>Enjoy your meal ! 🍽</b>"
   },
   "de": {
     "category.student": "Student",
@@ -36,6 +40,8 @@
     "menu.back_to_settings": "Zurück zu Einstellungen",
     "setting.language": "Sprache: {}",
     "setting.categories": "Kategorien: {}",
-    "notif.wait_updating": "Das Menü wird gerade aktualisiert, bitte warten Sie..."
+    "notif.wait_updating": "Das Menü wird gerade aktualisiert, bitte warten Sie...",
+    "notif.unavailable": "Es scheint, dass das Menü derzeit nicht verfügbar ist",
+    "notif.start": "<b>Hallo, ich bin BeeBot 🐝, der Menüroboter der Cafeteria der HEI !</b>\n<i>(changer la langue / change language / Sprache ändern: /settings)</i>\n\nUm die Menüs der <u>Woche</u> zu sehen, verwende den Befehl /week\nUm die Menüs des <u>Tages</u> zu sehen, verwenden Sie /today\n\nWenn Sie die <u>Sprache</u>, in der ich spreche, oder die <u>Preiskategorien</u>, die in den Menüs angezeigt werden, ändern möchten, verwenden Sie den Befehl /settings\n\n<b>Bitte spammen Sie nicht</b>, um die Nutzung dieses Dienstes durch andere Personen nicht zu beeinträchtigen\n\n<b>Guten Appetit ! 🍽</b>"
   }
 }