import 'package:flutter/material.dart';

import '../../../access/access_requirement.dart';
import '../../../session/session_manager.dart';
import 'sections/about_section.dart';
import 'sections/account_section.dart';
import 'sections/appearance_section.dart';
import 'sections/files_section.dart';
import 'sections/modules_section.dart';
import 'sections/notifications_section.dart';
import 'sections/talk_section.dart';
import 'sections/timetable_section.dart';

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

  /// Sections in display order with the backend identities they need;
  /// sections the session cannot use are left out.
  static const List<(Widget, Set<AccessRequirement>)> _sections = [
    (AccountSection(), {}),
    (AppearanceSection(), {}),
    (ModulesSection(), {}),
    (TimetableSection(), {}),
    (NotificationsSection(), {}),
    (TalkSection(), {AccessRequirement.nextcloud}),
    (FilesSection(), {AccessRequirement.nextcloud}),
    (AboutSection(), {}),
  ];

  @override
  Widget build(BuildContext context) {
    final session = SessionManager().current;
    final visible = [
      for (final (section, requirements) in _sections)
        if (requirements.areMetBy(session)) section,
    ];
    return Scaffold(
      appBar: AppBar(title: const Text('Einstellungen')),
      body: ListView(
        children: [
          for (final (i, section) in visible.indexed) ...[
            if (i > 0) const Divider(),
            section,
          ],
        ],
      ),
    );
  }
}