feat: implement onboarding process and enrollment status tracking for users

src/store/AppContext.jsx

@@ -1,40 +1,50 @@
 import { createContext, useContext, useReducer, useEffect } from 'react';
 import * as db from '../lib/db';
+import { pb } from '../lib/pb';
+import { getPersonalWeekNumber } from '../lib/curriculumService';
 
 const AppContext = createContext();
 
 const initialState = {
   currentUser: null,
   users: [],
-  weekNumber: getWeekNumber(new Date()),
+  weekNumber: 0,
   isLoading: true
 };
 
+function computeWeekNumber(user) {
+  if (!user || !user.curriculum_started_at || user.enrollment_status !== 'active') return 0;
+  return getPersonalWeekNumber(user.curriculum_started_at);
+}
+
 function appReducer(state, action) {
   switch (action.type) {
     case 'INIT_APP':
       return {
         ...state,
         users: action.payload.users,
-        weekNumber: action.payload.weekNumber || state.weekNumber,
         isLoading: false
       };
     case 'LOGIN':
-      return { ...state, currentUser: action.payload };
+      return {
+        ...state,
+        currentUser: action.payload,
+        weekNumber: computeWeekNumber(action.payload),
+      };
+    case 'UPDATE_CURRENT_USER':
+      return {
+        ...state,
+        currentUser: action.payload,
+        weekNumber: computeWeekNumber(action.payload),
+        users: state.users.map(u => u.id === action.payload.id ? action.payload : u),
+      };
     case 'LOGOUT':
-      return { ...state, currentUser: null };
+      return { ...state, currentUser: null, weekNumber: 0 };
     default:
       return state;
   }
 }
 
-function getWeekNumber(d) {
-  d = new Date(Date.UTC(d.getFullYear(), d.getMonth(), d.getDate()));
-  d.setUTCDate(d.getUTCDate() + 4 - (d.getUTCDay()||7));
-  const yearStart = new Date(Date.UTC(d.getUTCFullYear(),0,1));
-  return Math.ceil(( ( (d - yearStart) / 86400000) + 1)/7);
-}
-
 export function AppProvider({ children }) {
   const [state, dispatch] = useReducer(appReducer, initialState);
 
@@ -52,8 +62,6 @@ export function AppProvider({ children }) {
         }
       }
 
-      const storedWeek = getWeekNumber(new Date());
-
       const sessionUserId = sessionStorage.getItem('respellion_session');
       if (sessionUserId) {
         const user = members.find(u => u.id === sessionUserId);
@@ -62,7 +70,7 @@ export function AppProvider({ children }) {
         }
       }
 
-      dispatch({ type: 'INIT_APP', payload: { users: members, weekNumber: storedWeek } });
+      dispatch({ type: 'INIT_APP', payload: { users: members } });
     };
 
     loadState().catch(console.error);
@@ -83,8 +91,23 @@ export function AppProvider({ children }) {
     dispatch({ type: 'LOGOUT' });
   };
 
+  /**
+   * Start the curriculum for the currently logged-in user.
+   * Records the start timestamp and flips enrollment_status to 'active'.
+   */
+  const enrollCurrentUser = async () => {
+    if (!state.currentUser) throw new Error('No user is logged in.');
+    const startedAt = new Date().toISOString();
+    const updated = await pb.collection('team_members').update(state.currentUser.id, {
+      curriculum_started_at: startedAt,
+      enrollment_status: 'active',
+    });
+    dispatch({ type: 'UPDATE_CURRENT_USER', payload: updated });
+    return updated;
+  };
+
   return (
-    <AppContext.Provider value={{ state, dispatch, login, logout }}>
+    <AppContext.Provider value={{ state, dispatch, login, logout, enrollCurrentUser }}>
       {children}
     </AppContext.Provider>
   );