import 'package:comunic/ui/routes/settings/account_image_settings.dart';
import 'package:comunic/ui/routes/settings/account_privacy_settings.dart';
import 'package:comunic/ui/routes/settings/account_security_settings.dart';
import 'package:comunic/ui/routes/settings/application_settings.dart';
import 'package:comunic/ui/routes/settings/custom_emojies_account_settings.dart';
import 'package:comunic/ui/routes/settings/general_account_settings.dart';
import 'package:comunic/utils/intl_utils.dart';
import 'package:comunic/utils/ui_utils.dart';
import 'package:flutter/material.dart';
import 'package:settings_ui/settings_ui.dart';

/// Account settings route
///
/// @author Pierre HUBERT

class _SettingsSection {
  final String title;
  final String subtitle;
  final IconData icon;
  final Widget Function() onBuild;

  const _SettingsSection({
    @required this.title,
    @required this.subtitle,
    @required this.icon,
    @required this.onBuild,
  })  : assert(title != null),
        assert(subtitle != null),
        assert(icon != null),
        assert(onBuild != null);
}

class AccountSettingsRoute extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(tr("Settings")),
      ),
      body: _AccountSettingsBody(),
    );
  }
}

class _AccountSettingsBody extends StatefulWidget {
  @override
  __AccountSettingsBodyState createState() => __AccountSettingsBodyState();
}

class __AccountSettingsBodyState extends State<_AccountSettingsBody> {
  _SettingsSection _currentSection;

  @override
  void initState() {
    super.initState();

    /// Choose first section by default
    _currentSection = _sections[0];
  }

  /// The list of settings sections
  List<_SettingsSection> get _sections => [
        _SettingsSection(
          title: tr("General settings"),
          subtitle: tr("Configure the main settings of your account"),
          icon: Icons.settings,
          onBuild: () => GeneralAccountSettingsScreen(),
        ),

        // Emoticons
        _SettingsSection(
          title: tr("Custom emojis"),
          subtitle: tr("Set your own emoticon shorcuts"),
          icon: Icons.insert_emoticon,
          onBuild: () => CustomEmojisAccountSettings(),
        ),

        // Account image
        _SettingsSection(
          title: tr("Account image"),
          subtitle: tr("Customize your account image"),
          icon: Icons.account_circle,
          onBuild: () => AccountImageSettingsScreen(),
        ),

        // Security settings
        _SettingsSection(
          title: tr("Security"),
          subtitle: tr("Manage security options of your account"),
          icon: Icons.lock,
          onBuild: () => AccountSecuritySettingsScreen(),
        ),

        // Privacy settings
        _SettingsSection(
          title: tr("Privacy"),
          subtitle: tr("Here you can make actions to protect your privacy"),
          icon: Icons.security,
          onBuild: () => AccountPrivacySettings(),
        ),

        // Privacy settings
        _SettingsSection(
          title: tr("Application settings"),
          subtitle: tr("Manage local application settings"),
          icon: Icons.smartphone,
          onBuild: () => ApplicationSettings(),
        ),
      ];

  @override
  Widget build(BuildContext context) =>
      isTablet(context) ? _buildTabletMode() : _buildMobileMode();

  /// Tablet mode
  Widget _buildTabletMode() => Row(
        children: <Widget>[
          Container(width: 400, child: _buildTabletLeftPane()),
          Expanded(child: _currentSection.onBuild())
        ],
      );

  Widget _buildTabletLeftPane() => ListView.builder(
        itemBuilder: (c, i) {
          final section = _sections[i];

          return Container(
            color: section.title == _currentSection.title
                ? Colors.black.withAlpha(50)
                : null,
            child: ListTile(
              title: Text(section.title),
              subtitle: Text(section.subtitle),
              leading: Icon(section.icon),
              onTap: () => _openSectionTablet(section),
            ),
          );
        },
        itemCount: _sections.length,
      );

  void _openSectionTablet(_SettingsSection s) =>
      setState(() => _currentSection = s);

  /// Mobile mode
  Widget _buildMobileMode() => SettingsList(
        sections: [
          SettingsSection(
            title: tr("Settings"),
            tiles: _sections
                .map((f) => SettingsTile(
                      title: f.title,
                      leading: Icon(f.icon),
                      subtitle: f.subtitle,
                      onPressed: (_) => _openSectionsAsNewRoute(f),
                    ))
                .toList(),
          )
        ],
      );

  /// Push a new route with the settings section
  _openSectionsAsNewRoute(_SettingsSection f) {
    Navigator.of(context).push(MaterialPageRoute(
      builder: (c) => Scaffold(
        appBar: AppBar(
          title: Text(f.title),
        ),
        body: f.onBuild(),
      ),
    ));
  }
}