IO-3166-Global-Notifications-Part-2 - Checkpoint

server/utils/ioHelpers.js

@@ -1,7 +1,9 @@
 const applyIOHelpers = ({ app, api, io, logger }) => {
-  const getBodyshopRoom = (bodyshopID) => `bodyshop-broadcast-room:${bodyshopID}`;
+  // Global Bodyshop Room
+  const getBodyshopRoom = (bodyshopId) => `bodyshop-broadcast-room:${bodyshopId}`;
+
   // Messaging - conversation specific room to handle detailed messages when the user has a conversation open.
-  const getBodyshopConversationRoom = ({bodyshopId, conversationId}) =>
+  const getBodyshopConversationRoom = ({ bodyshopId, conversationId }) =>
     `bodyshop-conversation-room:${bodyshopId}:${conversationId}`;
 
   const ioHelpersAPI = {

server/utils/redisHelpers.js

@@ -1,3 +1,39 @@
+const { GET_BODYSHOP_BY_ID } = require("../graphql-client/queries");
+const client = require("../graphql-client/graphql-client").client;
+
+const BODYSHOP_CACHE_TTL = 3600; // 1 hour
+
+/**
+ * Generate a cache key for a bodyshop
+ * @param bodyshopId
+ * @returns {`bodyshop-cache:${string}`}
+ */
+const getBodyshopCacheKey = (bodyshopId) => `bodyshop-cache:${bodyshopId}`;
+
+/**
+ * Fetch bodyshop data from the database
+ * @param bodyshopId
+ * @param logger
+ * @returns {Promise<*>}
+ */
+const fetchBodyshopFromDB = async (bodyshopId, logger) => {
+  try {
+    const response = await client.request(GET_BODYSHOP_BY_ID, { id: bodyshopId });
+    const bodyshop = response.bodyshops_by_pk;
+    if (!bodyshop) {
+      throw new Error(`Bodyshop with ID ${bodyshopId} not found`);
+    }
+    return bodyshop; // Return the full object as-is
+  } catch (error) {
+    logger.log("fetch-bodyshop-from-db", "ERROR", "redis", null, {
+      bodyshopId,
+      error: error?.message,
+      stack: error?.stack
+    });
+    throw error;
+  }
+};
+
 /**
  * Apply Redis helper functions
  * @param pubClient
@@ -234,6 +270,71 @@ const applyRedisHelpers = ({ pubClient, app, logger }) => {
     }
   };
 
+  // Get bodyshop data from Redis or fetch from DB if missing
+  const getBodyshopFromRedis = async (bodyshopId) => {
+    const key = getBodyshopCacheKey(bodyshopId);
+    try {
+      // Check if data exists in Redis
+      const cachedData = await pubClient.get(key);
+      if (cachedData) {
+        return JSON.parse(cachedData); // Parse and return the full object
+      }
+
+      // Cache miss: fetch from DB
+      const bodyshopData = await fetchBodyshopFromDB(bodyshopId, logger);
+
+      // Store in Redis as a single JSON string
+      const jsonData = JSON.stringify(bodyshopData);
+      await pubClient.set(key, jsonData);
+      await pubClient.expire(key, BODYSHOP_CACHE_TTL);
+
+      logger.log("bodyshop-cache-miss", "DEBUG", "redis", null, {
+        bodyshopId,
+        action: "Fetched from DB and cached"
+      });
+
+      return bodyshopData; // Return the full object
+    } catch (error) {
+      logger.log("get-bodyshop-from-redis", "ERROR", "redis", null, {
+        bodyshopId,
+        error: error.message
+      });
+      throw error;
+    }
+  };
+
+  // Update or invalidate bodyshop data in Redis
+  const updateOrInvalidateBodyshopFromRedis = async (bodyshopId, values = null) => {
+    const key = getBodyshopCacheKey(bodyshopId);
+    try {
+      if (!values) {
+        // Invalidate cache by deleting the key
+        await pubClient.del(key);
+        logger.log("bodyshop-cache-invalidate", "DEBUG", "api", "redis", {
+          bodyshopId,
+          action: "Cache invalidated"
+        });
+      } else {
+        // Update cache with the full provided values
+        const jsonData = JSON.stringify(values);
+        await pubClient.set(key, jsonData);
+        await pubClient.expire(key, BODYSHOP_CACHE_TTL);
+        logger.log("bodyshop-cache-update", "DEBUG", "api", "redis", {
+          bodyshopId,
+          action: "Cache updated",
+          values
+        });
+      }
+    } catch (error) {
+      logger.log("update-or-invalidate-bodyshop-from-redis", "ERROR", "api", "redis", {
+        bodyshopId,
+        values,
+        error: error.message
+      });
+      throw error;
+    }
+  };
+
   const api = {
     setSessionData,
     getSessionData,
@@ -251,7 +352,9 @@ const applyRedisHelpers = ({ pubClient, app, logger }) => {
     removeUserSocketMapping,
     getUserSocketMappingByBodyshop,
     getUserSocketMapping,
-    refreshUserSocketTTL
+    refreshUserSocketTTL,
+    getBodyshopFromRedis,
+    updateOrInvalidateBodyshopFromRedis
   };
 
   Object.assign(module.exports, api);