import React from 'react';
import { YStack } from '@tamagui/stacks';
import { Trophy, UploadCloud, Sparkles, Cast, Share2, Compass, Image, Camera, Settings, Home } from 'lucide-react';
import { useLocation, useNavigate } from 'react-router-dom';
import TopBar from './TopBar';
import BottomDock from './BottomDock';
import FloatingActionButton from './FloatingActionButton';
import FabActionSheet from './FabActionSheet';
import CompassHub, { type CompassAction } from './CompassHub';
import AmbientBackground from './AmbientBackground';
import NotificationSheet from './NotificationSheet';
import SettingsSheet from './SettingsSheet';
import GuestAnalyticsNudge from './GuestAnalyticsNudge';
import { useEventData } from '../context/EventDataContext';
import { buildEventPath } from '../lib/routes';
import { useOptionalNotificationCenter } from '@/guest/context/NotificationCenterContext';
import { useTranslation } from '@/guest/i18n/useTranslation';
import { useAppearance } from '@/hooks/use-appearance';

type AppShellProps = {
  children: React.ReactNode;
};

export default function AppShell({ children }: AppShellProps) {
  const [sheetOpen, setSheetOpen] = React.useState(false);
  const [compassOpen, setCompassOpen] = React.useState(false);
  const [notificationsOpen, setNotificationsOpen] = React.useState(false);
  const [settingsOpen, setSettingsOpen] = React.useState(false);
  const { tasksEnabled, event, token } = useEventData();
  const notificationCenter = useOptionalNotificationCenter();
  const navigate = useNavigate();
  const location = useLocation();
  const { t } = useTranslation();
  const { resolved } = useAppearance();
  const isDark = resolved === 'dark';
  const actionIconColor = isDark ? '#F8FAFF' : '#0F172A';
  const matomoEnabled = typeof window !== 'undefined' && Boolean((window as any).__MATOMO_GUEST__?.enabled);
  const showFab = !/\/photo\/\d+/.test(location.pathname);

  const goTo = (path: string) => () => {
    setSheetOpen(false);
    setCompassOpen(false);
    setNotificationsOpen(false);
    setSettingsOpen(false);
    navigate(buildEventPath(token, path));
  };

  const openSheet = () => {
    setCompassOpen(false);
    setNotificationsOpen(false);
    setSettingsOpen(false);
    setSheetOpen(true);
  };

  const openCompass = () => {
    setSheetOpen(false);
    setNotificationsOpen(false);
    setSettingsOpen(false);
    setCompassOpen(true);
  };

  const actions = [
    {
      key: 'upload',
      label: t('appShell.actions.upload.label', 'Upload / Take photo'),
      description: t('appShell.actions.upload.description', 'Add a moment from your device or camera.'),
      icon: <UploadCloud size={18} color={actionIconColor} />,
      onPress: goTo('/upload'),
    },
    {
      key: 'compass',
      label: t('appShell.actions.compass.label', 'Compass hub'),
      description: t('appShell.actions.compass.description', 'Quick jump to key areas.'),
      icon: <Compass size={18} color={actionIconColor} />,
      onPress: () => {
        setSheetOpen(false);
        openCompass();
      },
    },
    tasksEnabled
      ? {
          key: 'task',
          label: t('appShell.actions.task.label', 'Start a task'),
          description: t('appShell.actions.task.description', 'Pick a challenge and capture it now.'),
          icon: <Sparkles size={18} color={actionIconColor} />,
          onPress: goTo('/tasks'),
        }
      : null,
    {
      key: 'live',
      label: t('appShell.actions.live.label', 'Live show'),
      description: t('appShell.actions.live.description', 'See the real-time highlight stream.'),
      icon: <Cast size={18} color={actionIconColor} />,
      onPress: () => {
        setSheetOpen(false);
        setCompassOpen(false);
        setNotificationsOpen(false);
        setSettingsOpen(false);
        if (token) {
          navigate(`/show/${encodeURIComponent(token)}`);
        }
      },
    },
    {
      key: 'slideshow',
      label: t('appShell.actions.slideshow.label', 'Slideshow'),
      description: t('appShell.actions.slideshow.description', 'Lean back and watch the gallery roll.'),
      icon: <Image size={18} color={actionIconColor} />,
      onPress: goTo('/slideshow'),
    },
    {
      key: 'share',
      label: t('appShell.actions.share.label', 'Share invite'),
      description: t('appShell.actions.share.description', 'Send the event link or QR code.'),
      icon: <Share2 size={18} color={actionIconColor} />,
      onPress: goTo('/share'),
    },
    tasksEnabled
      ? {
          key: 'achievements',
          label: t('appShell.actions.achievements.label', 'Achievements'),
          description: t('appShell.actions.achievements.description', 'Track your photo streaks.'),
          icon: <Trophy size={18} color={actionIconColor} />,
          onPress: goTo('/achievements'),
        }
      : null,
  ].filter(Boolean) as Array<{
    key: string;
    label: string;
    description: string;
    icon: React.ReactNode;
    onPress?: () => void;
  }>;

  const compassQuadrants: [CompassAction, CompassAction, CompassAction, CompassAction] = [
    {
      key: 'home',
      label: t('navigation.home', 'Home'),
      icon: <Home size={18} color={actionIconColor} />,
      onPress: goTo('/'),
    },
    {
      key: 'gallery',
      label: t('navigation.gallery', 'Gallery'),
      icon: <Image size={18} color={actionIconColor} />,
      onPress: goTo('/gallery'),
    },
    tasksEnabled
      ? {
          key: 'tasks',
          label: t('navigation.tasks', 'Tasks'),
          icon: <Sparkles size={18} color={actionIconColor} />,
          onPress: goTo('/tasks'),
        }
      : {
          key: 'settings',
          label: t('settings.title', 'Settings'),
          icon: <Settings size={18} color={actionIconColor} />,
          onPress: goTo('/settings'),
        },
    {
      key: 'share',
      label: t('navigation.share', 'Share'),
      icon: <Share2 size={18} color={actionIconColor} />,
      onPress: goTo('/share'),
    },
  ];

  return (
    <AmbientBackground>
      <YStack minHeight="100vh" position="relative">
        <YStack
          position="fixed"
          top={0}
          left={0}
          right={0}
          zIndex={1000}
          style={{
            backgroundColor: isDark ? 'rgba(10, 14, 28, 0.72)' : 'rgba(255, 255, 255, 0.85)',
            backdropFilter: 'saturate(160%) blur(18px)',
            WebkitBackdropFilter: 'saturate(160%) blur(18px)',
          }}
        >
          <TopBar
            eventName={event?.name ?? t('galleryPage.hero.eventFallback', 'Event')}
            onProfilePress={() => {
              setNotificationsOpen(false);
              setSheetOpen(false);
              setCompassOpen(false);
              setSettingsOpen(true);
            }}
            onNotificationsPress={() => {
              setSettingsOpen(false);
              setSheetOpen(false);
              setCompassOpen(false);
              setNotificationsOpen(true);
            }}
            notificationCount={notificationCenter?.unreadCount ?? 0}
          />
        </YStack>
        <YStack
          flex={1}
          padding="$4"
          gap="$4"
          position="relative"
          zIndex={1}
          style={{ paddingTop: '88px', paddingBottom: '128px' }}
        >
          {children}
        </YStack>
        {showFab ? <FloatingActionButton onPress={openSheet} onLongPress={openCompass} /> : null}
        <BottomDock />
        <FabActionSheet
          open={sheetOpen}
          onOpenChange={(next) => setSheetOpen(next)}
          title={t('appShell.fab.title', 'Create a moment')}
          actions={actions}
        />
        <CompassHub
          open={compassOpen}
          onOpenChange={setCompassOpen}
          centerAction={{
            key: 'capture',
            label: t('appShell.compass.capture', 'Capture'),
            icon: <Camera size={18} color="white" />,
            onPress: goTo('/upload'),
          }}
          quadrants={compassQuadrants}
        />
        <NotificationSheet open={notificationsOpen} onOpenChange={setNotificationsOpen} />
        <SettingsSheet open={settingsOpen} onOpenChange={setSettingsOpen} />
        <GuestAnalyticsNudge enabled={matomoEnabled} pathname={location.pathname} />
      </YStack>
    </AmbientBackground>
  );
}