Create userGroups.js

src/community/userGroups.js

@@ -0,0 +1,80 @@
+// userGroups.js
+
+class UserGroups {
+    constructor() {
+        this.groups = {}; // Store groups by groupId
+        this.userGroups = {}; // Store user memberships
+    }
+
+    // Create a new group
+    createGroup(groupId, groupName, ownerId) {
+        if (!this.groups[groupId]) {
+            this.groups[groupId] = {
+                groupName,
+                ownerId,
+                members: [],
+            };
+            console.log(`Group "${groupName}" created with ID: ${groupId}`);
+        } else {
+            console.log(`Group ID ${groupId} already exists.`);
+        }
+    }
+
+    // Join a group
+    joinGroup(userId, groupId) {
+        if (this.groups[groupId]) {
+            if (!this.userGroups[userId]) {
+                this.userGroups[userId] = [];
+            }
+            if (!this.userGroups[userId].includes(groupId)) {
+                this.userGroups[userId].push(groupId);
+                this.groups[groupId].members.push(userId);
+                console.log(`User  ${userId} joined group "${this.groups[groupId].groupName}".`);
+            } else {
+                console.log(`User  ${userId} is already a member of group "${this.groups[groupId].groupName}".`);
+            }
+        } else {
+            console.log(`Group ID ${groupId} does not exist.`);
+        }
+    }
+
+    // Leave a group
+    leaveGroup(userId, groupId) {
+        if (this.groups[groupId] && this.userGroups[userId]) {
+            const groupIndex = this.userGroups[userId].indexOf(groupId);
+            const memberIndex = this.groups[groupId].members.indexOf(userId);
+
+            if (groupIndex !== -1) {
+                this.userGroups[userId].splice(groupIndex, 1);
+                this.groups[groupId].members.splice(memberIndex, 1);
+                console.log(`User  ${userId} left group "${this.groups[groupId].groupName}".`);
+            } else {
+                console.log(`User  ${userId} is not a member of group "${this.groups[groupId].groupName}".`);
+            }
+        } else {
+            console.log(`Group ID ${groupId} or User ID ${userId} does not exist.`);
+        }
+    }
+
+    // Get group details
+    getGroupDetails(groupId) {
+        return this.groups[groupId] || null;
+    }
+
+    // Get user groups
+    getUser Groups(userId) {
+        return this.userGroups[userId] || [];
+    }
+}
+
+// Example usage
+const userGroups = new UserGroups();
+userGroups.createGroup('group1', 'Tech Enthusiasts', 'user1');
+userGroups.createGroup('group2', 'Book Lovers', 'user2');
+
+userGroups.joinGroup('user3', 'group1');
+userGroups.joinGroup('user1', 'group2');
+userGroups.leaveGroup('user3', 'group1');
+
+console.log('Group Details:', userGroups.getGroupDetails('group1'));
+console.log('User  Groups for user1:', userGroups.getUser Groups('user1'));