Create gamification.js

src/loyalty/gamification.js

@@ -0,0 +1,95 @@
+// gamification.js
+
+class Gamification {
+    constructor() {
+        this.users = {}; // Store user data
+        this.achievements = {}; // Store achievements
+        this.leaderboard = []; // Store leaderboard entries
+    }
+
+    // Register a new user
+    registerUser (userId) {
+        if (!this.users[userId]) {
+            this.users[userId] = {
+                points: 0,
+                achievements: [],
+            };
+            console.log(`User  ${userId} registered.`);
+        } else {
+            console.log(`User  ${userId} is already registered.`);
+        }
+    }
+
+    // Award points to a user
+    awardPoints(userId, points) {
+        if (this.users[userId]) {
+            this.users[userId].points += points;
+            console.log(`Awarded ${points} points to user ${userId}.`);
+            this.checkAchievements(userId);
+            this.updateLeaderboard(userId);
+        } else {
+            console.log(`User  ${userId} not found.`);
+        }
+    }
+
+    // Define an achievement
+    defineAchievement(achievementId, description, pointsRequired) {
+        this.achievements[achievementId] = { description, pointsRequired };
+        console.log(`Achievement defined: ${description} (Requires ${pointsRequired} points)`);
+    }
+
+    // Check if a user has unlocked any achievements
+    checkAchievements(userId) {
+        const userPoints = this.users[userId].points;
+        for (const [achievementId, achievement] of Object.entries(this.achievements)) {
+            if (userPoints >= achievement.pointsRequired && !this.users[userId].achievements.includes(achievementId)) {
+                this.users[userId].achievements.push(achievementId);
+                console.log(`User  ${userId} unlocked achievement: ${achievement.description}`);
+            }
+        }
+    }
+
+    // Update the leaderboard
+    updateLeaderboard(userId) {
+        const userPoints = this.users[userId].points;
+        const entryIndex = this.leaderboard.findIndex(entry => entry.userId === userId);
+
+        if (entryIndex !== -1) {
+            this.leaderboard[entryIndex].points = userPoints; // Update existing entry
+        } else {
+            this.leaderboard.push({ userId, points: userPoints }); // Add new entry
+        }
+
+        // Sort leaderboard by points in descending order
+        this.leaderboard.sort((a, b) => b.points - a.points);
+        console.log(`Leaderboard updated for user ${userId}.`);
+    }
+
+    // Get the current leaderboard
+    getLeaderboard() {
+        return this.leaderboard.map(entry => ({
+            userId: entry.userId,
+            points: entry.points,
+        }));
+    }
+
+    // Example usage
+    static exampleUsage() {
+        const gamification = new Gamification();
+        gamification.registerUser ('user1');
+        gamification.registerUser ('user2');
+
+        gamification.defineAchievement('first_points', 'Earn your first points', 10);
+        gamification.defineAchievement('ten_points', 'Earn 10 points', 10);
+        gamification.defineAchievement('fifty_points', 'Earn 50 points', 50);
+
+        gamification.awardPoints('user1', 15);
+        gamification.awardPoints('user2', 5);
+        gamification.awardPoints('user1', 40);
+
+        console.log('Current Leaderboard:', gamification.getLeaderboard());
+    }
+}
+
+// Run example usage
+Gamification.exampleUsage();