Implement active user tiers, class-based Tailwind theme switcher, 3-tiled static dashboard layout, Minio object storage integration, school & state settings database sync, and streak wishes onboarding modal

src/hooks/useActiveUser.ts

@@ -0,0 +1,118 @@
+"use client";
+
+import { useEffect, useState, useCallback } from "react";
+
+export interface UserProfile {
+  id: string;
+  name: string;
+  email: string | null;
+  phone: string | null;
+  class: string;
+  target_exam: "JEE_Main" | "JEE_Advanced" | "NEET";
+  medium: "English" | "Hindi" | "Bilingual";
+  school: string | null;
+  city: string;
+  state: string;
+  tier: "Free" | "Pro" | "Al_Coach"; // Al_Coach in database schema
+  streak_count: number;
+  longest_streak: number;
+}
+
+export const DEFAULT_USER_ID = "b0e17378-864d-439e-8806-708dc48a891b"; // AI Coach
+
+export const DEMO_USERS = {
+  FREE: { id: "11111111-1111-1111-1111-111111111111", label: "Amit Kumar (Free Tier)" },
+  PRO: { id: "22222222-2222-2222-2222-222222222222", label: "Priya Singh (Pro Tier)" },
+  AI_COACH: { id: DEFAULT_USER_ID, label: "Rahul Sharma (AI Coach)" }
+};
+
+export function useActiveUser() {
+  const [userId, setUserIdState] = useState<string>(() => {
+    if (typeof window !== "undefined") {
+      return localStorage.getItem("activeUserId") || DEFAULT_USER_ID;
+    }
+    return DEFAULT_USER_ID;
+  });
+
+  const [user, setUser] = useState<UserProfile | null>(null);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState<string | null>(null);
+
+  const fetchUserProfile = useCallback(async (id: string) => {
+    setLoading(true);
+    setError(null);
+    try {
+      const res = await fetch(`/api/users/${id}`);
+      if (!res.ok) {
+        throw new Error("Failed to fetch user profile");
+      }
+      const data = await res.json();
+      setUser(data);
+    } catch (err: any) {
+      console.error("Error fetching active user profile:", err);
+      setError(err.message || "Failed to load user");
+    } finally {
+      setLoading(false);
+    }
+  }, []);
+
+  useEffect(() => {
+    if (typeof window !== "undefined") {
+      const storedId = localStorage.getItem("activeUserId") || DEFAULT_USER_ID;
+      setUserIdState(storedId);
+      fetchUserProfile(storedId);
+    }
+  }, [fetchUserProfile]);
+
+  const switchUser = useCallback((newId: string) => {
+    if (typeof window !== "undefined") {
+      localStorage.setItem("activeUserId", newId);
+      setUserIdState(newId);
+      window.location.reload();
+    }
+  }, []);
+
+  const hasAccessTo = useCallback((feature: string): boolean => {
+    if (!user) return false;
+    const tier = user.tier;
+    
+    // Core restrictions mapping based on PRD feature matrix
+    switch (feature) {
+      case "topic-wise-microtests-unlimited":
+      case "weekly-test-series":
+      case "full-length-mock-tests":
+      case "previous-year-papers":
+      case "detailed-performance-analytics":
+      case "chapter-wise-progress-tracking":
+      case "doubt-resolution-community":
+      case "parent-dashboard":
+      case "offline-mode":
+      case "pdf-export":
+        return tier === "Pro" || tier === "Al_Coach";
+        
+      case "ai-mistake-tracking":
+      case "spaced-repetition":
+      case "personalized-study-plan":
+      case "ai-tutor-chat":
+      case "exam-readiness-score":
+      case "exam-day-strategy":
+      case "college-predictor":
+      case "study-time-optimization":
+        return tier === "Al_Coach";
+        
+      default:
+        // Free tier features: DPS (1/day), basic dashboard, basic streak tracking, leaderboard
+        return true;
+    }
+  }, [user]);
+
+  return {
+    userId,
+    user,
+    loading,
+    error,
+    switchUser,
+    hasAccessTo,
+    refreshUser: () => fetchUserProfile(userId)
+  };
+}