/*
 * File: hooks.ts
 * Description: Custom Redux hooks for easy store access
 * Design & Developed by Tech4Biz Solutions
 * Copyright (c) Spurrin Innovations. All rights reserved.
 */

import { useDispatch, useSelector, TypedUseSelectorHook } from 'react-redux';
import { RootState, AppDispatch } from './index';

// ============================================================================
// TYPED HOOKS
// ============================================================================

/**
 * Typed Use Dispatch Hook
 * 
 * Purpose: Provide typed dispatch function
 * 
 * Features:
 * - Type-safe dispatch function
 * - Proper TypeScript support
 * - Consistent with Redux Toolkit patterns
 */
export const useAppDispatch = () => useDispatch<AppDispatch>();

/**
 * Typed Use Selector Hook
 * 
 * Purpose: Provide typed selector function
 * 
 * Features:
 * - Type-safe selector function
 * - Proper TypeScript support
 * - Consistent with Redux Toolkit patterns
 */
export const useAppSelector: TypedUseSelectorHook<RootState> = useSelector;

// ============================================================================
// AUTH HOOKS
// ============================================================================

/**
 * Use Auth Hook
 * 
 * Purpose: Get authentication state and actions
 * 
 * @returns Authentication state and actions
 */
export const useAuth = () => {
  const auth = useAppSelector((state) => state.auth);
  const dispatch = useAppDispatch();
  
  return {
    // State
    user: auth.user,
    isLoading: auth.loading,
    isLoggingIn: auth.loading,
    isLoggingOut: false,
    isAuthenticated: auth.isAuthenticated,
    error: auth.error,
    
    // Computed values
    isLoggedIn: auth.isAuthenticated,
    hasUser: !!auth.user,
    userRole: auth.user?.dashboard_role || null,
    userId: auth.user?.user_id || null,
    userEmail: auth.user?.email || null,
    userName: auth.user?.display_name || null,
    userAvatar: auth.user?.profile_photo_url || null,
    userPermissions: [],
    isOnboarded: auth.user?.onboarded || false,
    
    // Actions
    dispatch,
  };
};

/**
 * Use User Hook
 * 
 * Purpose: Get current user information
 * 
 * @returns Current user data
 */
export const useUser = () => {
  const user = useAppSelector((state) => state.auth.user);
  
  return {
    user,
    isLoggedIn: !!user,
  };
};

// ============================================================================
// DASHBOARD HOOKS
// ============================================================================

/**
 * Use Dashboard Hook
 * 
 * Purpose: Get dashboard state and actions
 * 
 * @returns Dashboard state and actions
 */
export const useDashboard = () => {
  const dashboard = useAppSelector((state) => state.dashboard);
  const dispatch = useAppDispatch();
  
  return {
    // State
    dashboard: dashboard.dashboard,
    isLoading: dashboard.isLoading,
    isRefreshing: dashboard.isRefreshing,
    error: dashboard.error,
    lastUpdated: dashboard.lastUpdated,
    isConnected: dashboard.isConnected,
    selectedFilter: dashboard.selectedFilter,
    sortBy: dashboard.sortBy,
    sortOrder: dashboard.sortOrder,
    
    // Actions
    dispatch,
  };
};

// ============================================================================
// PATIENT CARE HOOKS
// ============================================================================

/**
 * Use Patient Care Hook
 * 
 * Purpose: Get patient care state and actions
 * 
 * @returns Patient care state and actions
 */
export const usePatientCare = () => {
  const patientCare = useAppSelector((state) => state.patientCare);
  const dispatch = useAppDispatch();
  
  return {
    // State
    patients: patientCare.patients,
    currentPatient: patientCare.currentPatient,
    isLoading: patientCare.isLoading,
    isRefreshing: patientCare.isRefreshing,
    isLoadingPatientDetails: patientCare.isLoadingPatientDetails,
    error: patientCare.error,
    searchQuery: patientCare.searchQuery,
    selectedFilter: patientCare.selectedFilter,
    sortBy: patientCare.sortBy,
    sortOrder: patientCare.sortOrder,
    currentPage: patientCare.currentPage,
    itemsPerPage: patientCare.itemsPerPage,
    totalItems: patientCare.totalItems,
    lastUpdated: patientCare.lastUpdated,
    
    // Computed values
    activePatients: patientCare.patients.filter(patient => patient.patient_info.status === 'Active'),
    criticalPatients: patientCare.patients.filter(patient => patient.patient_info.report_status === 'Critical'),
    dischargedPatients: patientCare.patients.filter(patient => patient.patient_info.status === 'Discharged'),
    
    // Actions
    dispatch,
  };
};

// ============================================================================
// SETTINGS HOOKS
// ============================================================================

/**
 * Use Settings Hook
 * 
 * Purpose: Get settings state and actions
 * 
 * @returns Settings state and actions
 */
export const useSettings = () => {
  const settings = useAppSelector((state) => state.settings);
  const dispatch = useAppDispatch();
  
  return {
    // State
    userProfile: settings.userProfile,
    userPreferences: settings.userPreferences,
    isLoading: settings.isLoading,
    isUpdatingProfile: settings.isUpdatingProfile,
    isUpdatingPreferences: settings.isUpdatingPreferences,
    error: settings.error,
    isProfileValid: settings.isProfileValid,
    isPreferencesValid: settings.isPreferencesValid,
    profileLastUpdated: settings.profileLastUpdated,
    preferencesLastUpdated: settings.preferencesLastUpdated,
    
    // Actions
    dispatch,
  };
};

// ============================================================================
// UTILITY HOOKS
// ============================================================================

/**
 * Use Store Hook
 * 
 * Purpose: Get access to the entire store state
 * 
 * @returns Entire store state
 */
export const useStore = () => {
  return useAppSelector((state) => state);
};

/**
 * Use Persistence Status Hook
 * 
 * Purpose: Get Redux Persist status
 * 
 * @returns Persistence status
 */
export const usePersistenceStatus = () => {
  // This would need to be implemented with a custom selector
  // that accesses the persistor state
  return {
    isRehydrated: true, // Placeholder
    isPersisting: false, // Placeholder
  };
};

/*
 * End of File: hooks.ts
 * Design & Developed by Tech4Biz Solutions
 * Copyright (c) Spurrin Innovations. All rights reserved.
 */