import React from 'react';
import { Sheet } from '@tamagui/sheet';
import { YStack, XStack } from '@tamagui/stacks';
import { SizableText as Text } from '@tamagui/text';
import { Button } from '@tamagui/button';
import { Share2, MessageSquare, Copy, X } from 'lucide-react';
import { useTranslation } from '@/shared/guest/i18n/useTranslation';
import { useGuestThemeVariant } from '../lib/guestTheme';

type ShareSheetProps = {
  open: boolean;
  onOpenChange: (open: boolean) => void;
  photoId?: number | null;
  eventName?: string | null;
  url?: string | null;
  loading?: boolean;
  variant?: 'modal' | 'inline';
  onShareNative: () => void;
  onShareWhatsApp: () => void;
  onShareMessages: () => void;
  onCopyLink: () => void;
};

const WhatsAppIcon = (props: React.SVGProps<SVGSVGElement>) => (
  <svg role="img" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg" aria-hidden focusable="false" {...props}>
    <path
      fill="currentColor"
      d="M17.472 14.382c-.297-.149-1.758-.867-2.03-.967-.273-.099-.471-.148-.67.15-.197.297-.767.966-.94 1.164-.173.199-.347.223-.644.075-.297-.15-1.255-.463-2.39-1.475-.883-.788-1.48-1.761-1.653-2.059-.173-.297-.018-.458.13-.606.134-.133.298-.347.446-.52.149-.174.198-.298.298-.497.099-.198.05-.371-.025-.52-.075-.149-.669-1.612-.916-2.207-.242-.579-.487-.5-.669-.51-.173-.008-.371-.01-.57-.01-.198 0-.52.074-.792.372-.272.297-1.04 1.016-1.04 2.479 0 1.462 1.065 2.875 1.213 3.074.149.198 2.096 3.2 5.077 4.487.709.306 1.262.489 1.694.625.712.227 1.36.195 1.871.118.571-.085 1.758-.719 2.006-1.413.248-.694.248-1.289.173-1.413-.074-.124-.272-.198-.57-.347m-5.421 7.403h-.004a9.87 9.87 0 01-5.031-1.378l-.361-.214-3.741.982.998-3.648-.235-.374a9.86 9.86 0 01-1.51-5.26c.001-5.45 4.436-9.884 9.888-9.884 2.64 0 5.122 1.03 6.988 2.898a9.825 9.825 0 012.893 6.994c-.003 5.45-4.437 9.884-9.885 9.884m8.413-18.297A11.815 11.815 0 0012.05 0C5.495 0 .16 5.335.157 11.892c0 2.096.547 4.142 1.588 5.945L.057 24l6.305-1.654a11.882 11.882 0 005.683 1.448h.005c6.554 0 11.89-5.335 11.893-11.893a11.821 11.821 0 00-3.48-8.413Z"
    />
  </svg>
);

export default function ShareSheet({
  open,
  onOpenChange,
  photoId,
  eventName,
  url,
  loading = false,
  variant = 'modal',
  onShareNative,
  onShareWhatsApp,
  onShareMessages,
  onCopyLink,
}: ShareSheetProps) {
  const { t } = useTranslation();
  const { isDark } = useGuestThemeVariant();
  const mutedSurface = isDark ? 'rgba(255, 255, 255, 0.08)' : 'rgba(15, 23, 42, 0.06)';
  const mutedBorder = isDark ? 'rgba(255, 255, 255, 0.2)' : 'rgba(15, 23, 42, 0.12)';
  const inlineActive = variant === 'inline';
  const [inlineMounted, setInlineMounted] = React.useState(false);
  const [inlineVisible, setInlineVisible] = React.useState(false);

  React.useEffect(() => {
    if (!inlineActive) {
      setInlineMounted(false);
      setInlineVisible(false);
      return;
    }

    if (open) {
      setInlineMounted(true);
      const frame = window.requestAnimationFrame(() => setInlineVisible(true));
      return () => window.cancelAnimationFrame(frame);
    }

    setInlineVisible(false);
    const timer = window.setTimeout(() => setInlineMounted(false), 260);
    return () => window.clearTimeout(timer);
  }, [inlineActive, open]);

  const content = (
    <YStack gap="$3">
      <XStack alignItems="center" justifyContent="space-between">
        <YStack gap="$1">
          <Text fontSize="$2" color="$color" opacity={0.7} textTransform="uppercase" letterSpacing={1.2}>
            {t('share.title', 'Shared photo')}
          </Text>
          {photoId ? (
            <Text fontSize="$5" fontWeight="$8">
              #{photoId}
            </Text>
          ) : null}
          {eventName ? (
            <Text fontSize="$2" color="$color" opacity={0.7}>
              {eventName}
            </Text>
          ) : null}
        </YStack>
        <Button
          size="$3"
          circular
          backgroundColor={mutedSurface}
          borderWidth={1}
          borderColor={mutedBorder}
          onPress={() => onOpenChange(false)}
          aria-label={t('common.actions.close', 'Close')}
        >
          <X size={16} color={isDark ? '#F8FAFF' : '#0F172A'} />
        </Button>
      </XStack>

      <XStack gap="$2" flexWrap="wrap">
        <Button
          flex={1}
          minWidth="45%"
          borderRadius="$card"
          backgroundColor={mutedSurface}
          borderWidth={1}
          borderColor={mutedBorder}
          onPress={onShareNative}
          disabled={loading}
        >
          <XStack alignItems="center" gap="$2">
            <Share2 size={16} color={isDark ? '#F8FAFF' : '#0F172A'} />
            <YStack>
              <Text fontSize="$2" fontWeight="$7">
                {t('share.button', 'Share')}
              </Text>
              <Text fontSize="$1" color="$color" opacity={0.7}>
                {t('share.title', 'Shared photo')}
              </Text>
            </YStack>
          </XStack>
        </Button>
        <Button
          flex={1}
          minWidth="45%"
          borderRadius="$card"
          backgroundColor="#22C55E"
          onPress={onShareWhatsApp}
          disabled={loading}
        >
          <XStack alignItems="center" gap="$2">
            <WhatsAppIcon width={18} height={18} />
            <YStack>
              <Text fontSize="$2" fontWeight="$7" color="#FFFFFF">
                {t('share.whatsapp', 'WhatsApp')}
              </Text>
              <Text fontSize="$1" color="rgba(255,255,255,0.8)">
                {loading ? '...' : ''}
              </Text>
            </YStack>
          </XStack>
        </Button>
        <Button
          flex={1}
          minWidth="45%"
          borderRadius="$card"
          backgroundColor="#38BDF8"
          onPress={onShareMessages}
          disabled={loading}
        >
          <XStack alignItems="center" gap="$2">
            <MessageSquare size={16} color="#FFFFFF" />
            <YStack>
              <Text fontSize="$2" fontWeight="$7" color="#FFFFFF">
                {t('share.imessage', 'Messages')}
              </Text>
              <Text fontSize="$1" color="rgba(255,255,255,0.8)">
                {loading ? '...' : ''}
              </Text>
            </YStack>
          </XStack>
        </Button>
        <Button
          flex={1}
          minWidth="45%"
          borderRadius="$card"
          backgroundColor={mutedSurface}
          borderWidth={1}
          borderColor={mutedBorder}
          onPress={onCopyLink}
          disabled={loading}
        >
          <XStack alignItems="center" gap="$2">
            <Copy size={16} color={isDark ? '#F8FAFF' : '#0F172A'} />
            <YStack>
              <Text fontSize="$2" fontWeight="$7">
                {t('share.copyLink', 'Copy link')}
              </Text>
              <Text fontSize="$1" color="$color" opacity={0.7}>
                {loading ? t('share.loading', 'Loading...') : ''}
              </Text>
            </YStack>
          </XStack>
        </Button>
      </XStack>

      <Text fontSize="$1" color="$color" opacity={url ? 0.7 : 0} numberOfLines={1} style={{ minHeight: 16 }}>
        {url ?? ' '}
      </Text>
    </YStack>
  );

  if (inlineActive) {
    if (!inlineMounted && !open) {
      return null;
    }

    return (
      <YStack
        position="absolute"
        inset={0}
        zIndex={20}
        justifyContent="flex-end"
        pointerEvents={inlineVisible ? 'auto' : 'none'}
      >
        <Button
          unstyled
          onPress={() => onOpenChange(false)}
          opacity={inlineVisible ? 1 : 0}
          style={{
            position: 'absolute',
            inset: 0,
            backgroundColor: isDark ? 'rgba(15, 23, 42, 0.5)' : 'rgba(15, 23, 42, 0.35)',
            transition: 'opacity 200ms ease',
          }}
          aria-label={t('common.actions.close', 'Close')}
        />
        <YStack
          padding="$4"
          backgroundColor="$surface"
          borderTopLeftRadius="$6"
          borderTopRightRadius="$6"
          opacity={inlineVisible ? 1 : 0}
          style={{
            backfaceVisibility: 'hidden',
            transform: inlineVisible ? 'translate3d(0, 0, 0)' : 'translate3d(0, 56px, 0)',
            transition: 'transform 260ms cubic-bezier(0.22, 1, 0.36, 1), opacity 220ms ease',
            willChange: 'transform, opacity',
          }}
        >
          <YStack
            height={5}
            width={52}
            backgroundColor="#CBD5E1"
            borderRadius={999}
            alignSelf="center"
            marginBottom="$3"
          />
          {content}
        </YStack>
      </YStack>
    );
  }

  return (
    <Sheet
      open={open}
      onOpenChange={onOpenChange}
      snapPoints={[60]}
      position={open ? 0 : -1}
      modal
    >
      <Sheet.Overlay {...({ backgroundColor: isDark ? 'rgba(15, 23, 42, 0.6)' : 'rgba(15, 23, 42, 0.3)' } as any)} />
      <Sheet.Frame padding="$4" backgroundColor="$surface" borderTopLeftRadius="$6" borderTopRightRadius="$6">
        <Sheet.Handle height={5} width={52} backgroundColor="#CBD5E1" borderRadius={999} marginBottom="$3" />
        {content}
      </Sheet.Frame>
    </Sheet>
  );
}