Telegram bot command to filter favorites

config.defaults.json

@@ -41,6 +41,8 @@
     "showDecrease": false,
     "showDecreaseToZero": false,
     "showIncrease": false,
-    "showIncreaseFromZero": true
+    "showIncreaseFromZero": true,
+    "wordFilter": true,
+    "wordsList": []
   }
 }

lib/notifier.js

@@ -56,9 +56,12 @@ function notifyIfChanged(businesses) {
 function filterBusinesses(businessesById) {
   return Object.keys(businessesById)
     .filter((key) => {
+      const storeName = businessesById[key].store.store_name;
       const current = businessesById[key];
       const previous = cache.businessesById[key];
-      return hasInterestingChange(current, previous);
+      return (
+        hasInterestingChange(current, previous) && isInWordFilter(storeName)
+      );
     })
     .map((key) => businessesById[key]);
 }
@@ -82,6 +85,14 @@ function hasInterestingChange(current, previous) {
   }
 }
 
+function isInWordFilter(storeName) {
+  if (!config.get("messageFilter.wordFilter")) return true;
+  const storeNameKeys = storeName.toLowerCase().split(" ");
+  const filterWords = config.get("messageFilter.wordsList");
+
+  return filterWords.some((word) => storeNameKeys.includes(word));
+}
+
 function notifyConsole(message, options) {
   if (options.clear) {
     console.clear();

lib/telegram-bot.js

@@ -40,6 +40,32 @@ const botCommands = [
     command: "config",
     description: "Show current configuration.",
   },
+  {
+    command: "filter_set",
+    description:
+      "List of general words to add to filter, with a space after it.",
+  },
+  {
+    command: "filter_unset",
+    description:
+      "List of general words to remove from filter, with a space after it.",
+  },
+  {
+    command: "filter_get",
+    description: "List filters currently used",
+  },
+  {
+    command: "filter_clear",
+    description: "Clear the list.",
+  },
+  {
+    command: "filter_on",
+    description: "Activate filter.",
+  },
+  {
+    command: "filter_off",
+    description: "Disable filter.",
+  },
 ];
 
 module.exports = {
@@ -90,6 +116,12 @@ function createBot() {
   bot.command("show_decrease_to_zero", showDecreaseToZeroCommand);
   bot.command("show_increase", showIncreaseCommand);
   bot.command("show_increase_from_zero", showIncreaseFromZeroCommand);
+  bot.command("filter_on", filterOnCommand);
+  bot.command("filter_off", filterOffCommand);
+  bot.command("filter_clear", filterClearCommand);
+  bot.command("filter_get", filterGetCommand);
+  bot.command("filter_set", filterSetCommand);
+  bot.command("filter_unset", filterUnsetCommand);
   bot.launch();
   return bot;
 }
@@ -137,6 +169,8 @@ Activate alert for increasing stock : ${
 Activate alert for new market available : ${
     config.messageFilter.showIncreaseFromZero ? "✅" : "🚫"
   }
+Favorites filtering : ${config.messageFilter.wordFilter ? "✅" : "🚫"}
+Words list : ${config.messageFilter.wordsList}
   `);
 }
 
@@ -190,6 +224,55 @@ function showIncreaseFromZeroCommand(context) {
   );
 }
 
+function filterOnCommand(context) {
+  activateOption("wordFilter");
+  context.reply("✅ Favorites will be filter depends on the word list.");
+}
+
+function filterOffCommand(context) {
+  disableOption("wordFilter");
+  context.reply("❌ Favorites will not be filter depends on the word list.");
+}
+
+function filterClearCommand(context) {
+  setCustomOption("wordsList", []);
+  context.reply("✅ Words list has been cleared.");
+}
+
+function filterGetCommand(context) {
+  context.reply(
+    `✅ ${config.messageFilter.wordsList}
+      `
+  );
+}
+
+function filterUnsetCommand(context) {
+  const oldWords = context.message.text.split(" ");
+  oldWords.shift();
+  const config = getConfig();
+  const newList = config.messageFilter.wordsList.filter(
+    (word) => !oldWords.includes(word)
+  );
+  setCustomOption("wordsList", newList);
+  context.reply(
+    `✅ ${newList}
+      `
+  );
+}
+
+function filterSetCommand(context) {
+  const newWords = context.message.text.split(" ");
+  newWords.shift();
+  const config = getConfig();
+
+  const newList = config.messageFilter.wordsList.concat(newWords);
+  setCustomOption("wordsList", newList);
+  context.reply(
+    `✅ ${newList}
+      `
+  );
+}
+
 function addChat(context) {
   const chats = getChats();
   const chat = {
@@ -221,6 +304,20 @@ function setOption(option) {
   return !activate;
 }
 
+function setCustomOption(option, value) {
+  config.set("messageFilter." + option, value);
+}
+
+function activateOption(option) {
+  config.set("messageFilter." + option, true);
+  return true;
+}
+
+function disableOption(option) {
+  config.set("messageFilter." + option, false);
+  return false;
+}
+
 function getConfig() {
   const messageFilter = config.get("messageFilter");
   const bot = config.get("notifications.telegram.enabled");