import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'core/theme/teacher_theme.dart';
import 'data/repositories/teacher_repository.dart';
import 'logic/cubits/teacher_auth_cubit.dart';
import 'logic/cubits/teacher_studio_cubit.dart';
import 'logic/cubits/teacher_monetization_cubit.dart';
import 'logic/cubits/teacher_qna_cubit.dart';
import 'presentation/screens/auth/teacher_auth_screen.dart';
import 'presentation/screens/teacher_main_shell.dart';

/**
 * ==============================================================================
 * SAQEL ENTERPRISE (EDTECH 2.0) - TEACHER STUDIO APP (ZERO-MOCK PRODUCTION)
 * ==============================================================================
 * 
 * نقطة انطلاق تطبيق استوديو المعلم المعتمد:
 * - بوابة مصادقة حقيقية عبر الواتساب (WhatsApp OTP via Nabeh Gateway)
 * - استعلام وتحديد الصفوف والمواد التي يدرسها المعلم
 * - غرفة المحادثات الحية والردود الصوتية السقراطية (Socratic Voice Notes)
 * - بث مقاطع صوتية توجيهية لكافة طلبة الشعبة عبر الويب سوكت (0ms Broadcast).
 */
void main() {
  WidgetsFlutterBinding.ensureInitialized();
  final repository = TeacherRepository();

  runApp(SaqelTeacherApp(repository: repository));
}

class SaqelTeacherApp extends StatelessWidget {
  final TeacherRepository repository;

  SaqelTeacherApp({super.key, TeacherRepository? repository})
      : repository = repository ?? TeacherRepository();

  @override
  Widget build(BuildContext context) {
    return MultiBlocProvider(
      providers: [
        BlocProvider<TeacherAuthCubit>(
          create: (_) =>
              TeacherAuthCubit(repository: repository)..checkSession(),
        ),
        BlocProvider<TeacherStudioCubit>(
          create: (_) => TeacherStudioCubit(repository: repository),
        ),
        BlocProvider<TeacherMonetizationCubit>(
          create: (_) => TeacherMonetizationCubit(repository: repository),
        ),
        BlocProvider<TeacherQnACubit>(
          create: (_) => TeacherQnACubit(repository: repository),
        ),
      ],
      child: MaterialApp(
        title: 'صَقِل — استوديو المعلم المعتمد',
        debugShowCheckedModeBanner: false,
        theme: TeacherTheme.darkTheme,
        home: const TeacherAuthGate(),
      ),
    );
  }
}

class TeacherAuthGate extends StatelessWidget {
  const TeacherAuthGate({super.key});

  @override
  Widget build(BuildContext context) {
    return BlocBuilder<TeacherAuthCubit, TeacherAuthState>(
      builder: (context, state) {
        if (state is TeacherAuthenticated) {
          return TeacherMainShell(initialProfile: state.profile);
        } else if (state is TeacherAuthInitial) {
          return const Scaffold(
            backgroundColor: TeacherTheme.backgroundDark,
            body: Center(
              child:
                  CircularProgressIndicator(color: TeacherTheme.emeraldPrimary),
            ),
          );
        }
        // Keep TeacherAuthScreen mounted during TeacherAuthLoading, TeacherAuthOtpSent, TeacherAuthError, etc.
        return const TeacherAuthScreen();
      },
    );
  }
}