functions/src/notifications/membershipStatusNotifications.ts

@@ -5,6 +5,7 @@ import * as admin from "firebase-admin";
 const app = getAdmin();
 const logger = getLogger();
 const kTrainerRole = "Trainer";
+const CACHE_FOLDER = "gym_member_cache";
 
 interface MembershipData {
   id?: string;
@@ -44,6 +45,183 @@ interface PersonalTrainerAssign {
   gymId: string;
 }
 
+interface MinimalCacheEntry {
+  membershipId: string;
+  userId: string;
+  status: string;
+  displayName: string;
+  email?: string | null;
+  phoneNumber?: string | null;
+  alternateContact?: string | null;
+  renewalDate?: string | null;
+  expirationDate?: string | null;
+  createdAt?: string | null;
+  daysUntilExpiry?: number | null;
+  hasPersonalTraining: boolean;
+  hasPartialPayment: boolean;
+  remainingAmount: number;
+  subscriptionId?: string | null;
+  lastUpdated: string;
+}
+
+interface MinimalJsonCacheData {
+  gymId: string;
+  members: MinimalCacheEntry[];
+  totalMembers: number;
+  lastUpdated: string;
+  cacheVersion: string;
+}
+
+async function updateCacheForMembership(gymId: string, membershipId: string): Promise<void> {
+  try {
+    const fileName = `${CACHE_FOLDER}/${gymId}.json`;
+    const file = app.storage().bucket().file(fileName);
+
+    let existingData: MinimalJsonCacheData | null = null;
+
+    try {
+      const [fileBuffer] = await file.download();
+      existingData = JSON.parse(fileBuffer.toString());
+    } catch (error) {
+      logger.warn(`Could not load existing cache for gym ${gymId}, skipping cache update: ${error}`);
+      return;
+    }
+
+    if (!existingData || !existingData.members) {
+      logger.warn(`Invalid cache data for gym ${gymId}, skipping cache update`);
+      return;
+    }
+
+    const membershipDoc = await app
+      .firestore()
+      .collection("memberships")
+      .doc(membershipId)
+      .get();
+
+    if (!membershipDoc.exists) {
+      logger.warn(`Membership ${membershipId} not found, skipping cache update`);
+      return;
+    }
+
+    const membershipData = membershipDoc.data();
+    const updatedEntry = await generateMinimalCacheEntry(
+      membershipData!.userId,
+      membershipId,
+      membershipData!,
+      gymId
+    );
+
+    const memberIndex = existingData.members.findIndex(
+      member => member.membershipId === membershipId
+    );
+
+    if (memberIndex >= 0) {
+      existingData.members[memberIndex] = updatedEntry;
+    } else {
+      existingData.members.push(updatedEntry);
+    }
+
+    existingData.lastUpdated = new Date().toISOString();
+    existingData.totalMembers = existingData.members.length;
+
+    await file.save(JSON.stringify(existingData, null, 2), {
+      metadata: {
+        contentType: "application/json",
+        metadata: {
+          gymId: gymId,
+          totalMembers: existingData.totalMembers.toString(),
+          generatedAt: existingData.lastUpdated,
+          cacheVersion: existingData.cacheVersion,
+        },
+      },
+    });
+
+    logger.info(`Cache updated for membership ${membershipId} in gym ${gymId}`);
+  } catch (error) {
+    logger.error(`Error updating cache for membership ${membershipId}:`, error);
+  }
+}
+
+async function generateMinimalCacheEntry(
+  userId: string,
+  membershipId: string,
+  membershipData: any,
+  gymId: string
+): Promise<MinimalCacheEntry> {
+  try {
+    let firstName = "";
+    let lastName = "";
+    let email = "";
+    let phoneNumber = "";
+    let alternateContact = "";
+
+    try {
+      const clientFieldsSnapshot = await app
+        .firestore()
+        .collection("client_profiles")
+        .where("uid", "==", userId)
+        .get();
+
+      if (!clientFieldsSnapshot.empty) {
+        const fieldDoc = clientFieldsSnapshot.docs[0];
+        const fieldData = fieldDoc.data();
+
+        const fields = fieldData.fields || {};
+        firstName = fields["first-name"] || fieldData["first-name"] || "";
+        lastName = fields["last-name"] || fieldData["last-name"] || "";
+        email = fields["email"] || fieldData["email"] || "";
+        phoneNumber = fields["phone-number"] || fieldData["phone-number"] || "";
+        alternateContact =
+          fields["alternate-contact"] || fieldData["alternate-contact"] || "";
+      }
+    } catch (error) {
+      logger.error(`Error getting fields for user ${userId}:`, error);
+    }
+
+    const daysUntilExpiry = membershipData.daysUntilExpiry || null;
+
+    const displayName =
+      firstName.length === 0
+        ? "Unknown"
+        : lastName.length === 0
+        ? firstName
+        : `${firstName} ${lastName}`;
+
+    const isPartial = membershipData.isPartialPayment === true;
+    const remaining = membershipData.remainingAmount || 0;
+    const hasPartialPayment = isPartial && remaining > 0;
+
+    const minimalEntry: MinimalCacheEntry = {
+      membershipId,
+      userId,
+      status: membershipData.status || "N/A",
+      displayName,
+      email: email || null,
+      phoneNumber: phoneNumber || null,
+      alternateContact: alternateContact || null,
+      renewalDate: null,
+      expirationDate: membershipData.expirationDate
+        ? membershipData.expirationDate.toDate().toISOString()
+        : null,
+      createdAt: membershipData.createdAt
+        ? membershipData.createdAt.toDate().toISOString()
+        : null,
+      daysUntilExpiry,
+      hasPersonalTraining:
+        membershipData.subscription?.hasPersonalTraining === true,
+      hasPartialPayment,
+      remainingAmount: remaining,
+      subscriptionId: membershipData.subscriptionId || null,
+      lastUpdated: new Date().toISOString(),
+    };
+
+    return minimalEntry;
+  } catch (error) {
+    logger.error("Error generating minimal cache entry:", error);
+    throw error;
+  }
+}
+
 export const checkExpiredMemberships = onSchedule(
   {
     schedule: "0 8,14,20 * * *",
@@ -150,6 +328,7 @@ async function findExpiredMembershipsWithoutExpiryDate(): Promise<
     throw error;
   }
 }
+
 async function updateExpiryDateForExpiredMembership(
   membershipId: string,
   membershipData: MembershipData
@@ -184,6 +363,8 @@ async function updateExpiryDateForExpiredMembership(
         updatedAt: admin.firestore.FieldValue.serverTimestamp(),
       });
 
+    await updateCacheForMembership(membershipData.gymId, membershipId);
+
     logger.info(
       `Updated expiry date for expired membership ${membershipId}: ${expiryDate.toISOString()}`
     );
@@ -513,6 +694,8 @@ async function updateDaysUntilExpiryForAllMemberships(): Promise<void> {
               .doc(doc.id)
               .update(updateData);
 
+            await updateCacheForMembership(data.gymId, doc.id);
+
             logger.info(
               `Updated membership ${doc.id} with daysUntilExpiry: ${daysUntilExpiry}`
             );
@@ -665,6 +848,8 @@ async function processExpiredMembership(
       });
     }
 
+    await updateCacheForMembership(membershipData.gymId, membershipId);
+
     logger.info(`Marked membership ${membershipId} as EXPIRED`);
 
     await sendPlanExpiredNotification(membershipId, membershipData);
@@ -697,6 +882,8 @@ async function processExpiringMembership(
           expirationDate: admin.firestore.Timestamp.fromDate(expiryDate),
           updatedAt: admin.firestore.FieldValue.serverTimestamp(),
         });
+
+      await updateCacheForMembership(membershipData.gymId, membershipId);
     }
 
     await sendPlanExpiringNotification(membershipId, membershipData);