import 'dart:io';

import 'package:bitsdojo_window/bitsdojo_window.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:go_router/go_router.dart';
import 'package:google_fonts/google_fonts.dart';
import 'package:provider/provider.dart';
import 'package:responsive_framework/responsive_framework.dart';
import 'package:styled_widget/styled_widget.dart';
import 'package:surface/providers/config.dart';
import 'package:surface/providers/navigation.dart';
import 'package:surface/widgets/connection_indicator.dart';
import 'package:surface/widgets/navigation/app_background.dart';
import 'package:surface/widgets/navigation/app_bottom_navigation.dart';
import 'package:surface/widgets/navigation/app_rail_navigation.dart';
import 'package:surface/widgets/notify_indicator.dart';

final globalRootScaffoldKey = GlobalKey<ScaffoldState>();

class AppScaffold extends StatelessWidget {
  final Widget? body;
  final PreferredSizeWidget? bottomNavigationBar;
  final PreferredSizeWidget? bottomSheet;
  final Drawer? drawer;
  final Widget? endDrawer;
  final FloatingActionButtonAnimator? floatingActionButtonAnimator;
  final FloatingActionButtonLocation? floatingActionButtonLocation;
  final Widget? floatingActionButton;
  final AppBar? appBar;
  final DrawerCallback? onDrawerChanged;
  final DrawerCallback? onEndDrawerChanged;
  final bool noBackground;

  const AppScaffold({
    super.key,
    this.appBar,
    this.body,
    this.floatingActionButton,
    this.floatingActionButtonLocation,
    this.floatingActionButtonAnimator,
    this.bottomNavigationBar,
    this.bottomSheet,
    this.drawer,
    this.endDrawer,
    this.onDrawerChanged,
    this.onEndDrawerChanged,
    this.noBackground = false,
  });

  @override
  Widget build(BuildContext context) {
    final appBarHeight = appBar?.preferredSize.height ?? 0;
    final safeTop = MediaQuery.of(context).padding.top;

    final content = Column(
      children: [
        IgnorePointer(
          child: SizedBox(height: appBar != null ? appBarHeight + safeTop : 0),
        ),
        if (body != null) Expanded(child: body!),
      ],
    );

    return Scaffold(
      extendBody: true,
      extendBodyBehindAppBar: true,
      backgroundColor: Theme.of(context).scaffoldBackgroundColor,
      body: SizedBox.expand(
        child: noBackground
            ? content
            : AppBackground(isRoot: true, child: content),
      ),
      appBar: appBar,
      bottomNavigationBar: bottomNavigationBar,
      bottomSheet: bottomSheet,
      drawer: drawer,
      endDrawer: endDrawer,
      floatingActionButton: floatingActionButton,
      floatingActionButtonAnimator: floatingActionButtonAnimator,
      floatingActionButtonLocation: floatingActionButtonLocation,
      onDrawerChanged: onDrawerChanged,
      onEndDrawerChanged: onEndDrawerChanged,
    );
  }
}

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

  @override
  Widget build(BuildContext context) {
    return BackButton(
      onPressed: () {
        GoRouter.of(context).pop();
      },
    );
  }
}

class AppRootScaffold extends StatelessWidget {
  final Widget body;

  const AppRootScaffold({super.key, required this.body});

  @override
  Widget build(BuildContext context) {
    final cfg = context.watch<ConfigProvider>();
    final nav = context.watch<NavigationProvider>();
    final devicePixelRatio = MediaQuery.of(context).devicePixelRatio;

    final isCollapseDrawer = cfg.drawerIsCollapsed;

    final routeName = GoRouter.of(context)
        .routerDelegate
        .currentConfiguration
        .last
        .route
        .name;
    final isShowBottomNavigation = cfg.hideBottomNav
        ? false
        : nav.showBottomNavScreen.contains(routeName)
            ? ResponsiveBreakpoints.of(context).smallerOrEqualTo(MOBILE)
            : false;
    final isPopable = !NavigationProvider.kAllDestination
        .map((ele) => ele.screen)
        .contains(routeName);

    final innerWidget = isCollapseDrawer
        ? body
        : Row(
            children: [
              AppRailNavigation(),
              Expanded(child: body),
            ],
          );

    final windowButtonColor = WindowButtonColors(
      iconNormal: Theme.of(context).colorScheme.primary,
      mouseOver: Theme.of(context).colorScheme.primaryContainer,
      mouseDown: Theme.of(context).colorScheme.onPrimaryContainer,
      iconMouseOver: Theme.of(context).colorScheme.primary,
      iconMouseDown: Theme.of(context).colorScheme.primary,
    );

    final safeTop = MediaQuery.of(context).padding.top;
    final safeBottom = MediaQuery.of(context).padding.bottom;

    return Scaffold(
      key: globalRootScaffoldKey,
      backgroundColor: Theme.of(context).colorScheme.surface,
      body: Stack(
        children: [
          Column(
            children: [
              if (!kIsWeb &&
                  (Platform.isWindows || Platform.isLinux || Platform.isMacOS))
                WindowTitleBarBox(
                  child: Container(
                    decoration: BoxDecoration(
                      border: Border(
                        bottom: BorderSide(
                          color: Theme.of(context).dividerColor,
                          width: 1 / devicePixelRatio,
                        ),
                      ),
                    ),
                    child: MoveWindow(
                      child: Row(
                        crossAxisAlignment: CrossAxisAlignment.center,
                        mainAxisAlignment: Platform.isMacOS
                            ? MainAxisAlignment.center
                            : MainAxisAlignment.start,
                        children: [
                          Expanded(
                            child: Text(
                              'Solar Network',
                              style: GoogleFonts.spaceGrotesk(),
                              textAlign: Platform.isMacOS
                                  ? TextAlign.center
                                  : TextAlign.start,
                            ).padding(horizontal: 12, vertical: 5),
                          ),
                          if (!Platform.isMacOS)
                            MinimizeWindowButton(colors: windowButtonColor),
                          if (!Platform.isMacOS)
                            MaximizeWindowButton(colors: windowButtonColor),
                          if (!Platform.isMacOS)
                            CloseWindowButton(
                              colors: windowButtonColor,
                              onPressed: () => appWindow.hide(),
                            ),
                        ],
                      ),
                    ),
                  ),
                ),
              Expanded(child: innerWidget),
            ],
          ),
          Positioned(
              top: safeTop > 0 ? safeTop : 16,
              right: 8,
              child: NotifyIndicator()),
          if (ResponsiveBreakpoints.of(context).smallerOrEqualTo(MOBILE))
            Positioned(
              bottom: safeBottom > 0 ? safeBottom : 16,
              left: 0,
              right: 0,
              child: ConnectionIndicator(),
            )
          else
            Positioned(
              top: safeTop > 0 ? safeTop : 16,
              left: 0,
              right: 0,
              child: ConnectionIndicator(),
            ),
        ],
      ),
      drawerEdgeDragWidth: isPopable ? 0 : null,
      bottomNavigationBar:
          isShowBottomNavigation ? AppBottomNavigationBar() : null,
    );
  }
}

class ResponsiveScaffold extends StatelessWidget {
  final Widget aside;
  final Widget? child;
  const ResponsiveScaffold(
      {super.key, required this.aside, required this.child});

  @override
  Widget build(BuildContext context) {
    if (ResponsiveBreakpoints.of(context).largerOrEqualTo(TABLET)) {
      return Row(
        children: [
          Flexible(
            flex: 1,
            child: aside,
          ),
          VerticalDivider(width: 1),
          if (child != null && child != aside)
            Flexible(flex: 2, child: child!)
          else
            const Flexible(
              flex: 2,
              child: ResponsiveScaffoldLanding(child: null),
            ),
        ],
      );
    }

    return child ?? aside;
  }
}

class ResponsiveScaffoldLanding extends StatelessWidget {
  final Widget? child;
  const ResponsiveScaffoldLanding({super.key, required this.child});

  @override
  Widget build(BuildContext context) {
    if (ResponsiveBreakpoints.of(context).largerOrEqualTo(TABLET) ||
        child == null) {
      return AppScaffold(
        appBar: AppBar(),
        body: const SizedBox.shrink(),
      );
    }
    return child!;
  }
}