import React from 'react';
import { FlatList, Pressable, RefreshControl, StyleSheet, Text, View } from 'react-native';
import { Ionicons } from '@expo/vector-icons';
import { useRouter } from 'expo-router';
import { useQuery } from '@tanstack/react-query';
import { api, Property } from '@/api';
import { useT } from '@/i18n';
import { AppBar } from '@/components/AppBar';
import { Button, EmptyState, IconButton, Loading } from '@/components/ui';
import { PropertyCard } from '@/components/domain';
import { colors, fontSize, radii, spacing } from '@/theme';

export default function PropertiesScreen() {
  const router = useRouter();
  const t = useT();

  // One request: homes.php returns the per-property counters itself.
  const {
    data: properties,
    isLoading,
    isError,
    error,
    refetch,
    isRefetching,
  } = useQuery({ queryKey: ['properties'], queryFn: () => api.properties.list() });

  return (
    <View style={{ flex: 1, backgroundColor: colors.bgApp }}>
      <AppBar
        title={t('properties.title')}
        subtitle={properties ? t('properties.count', { count: properties.length }) : undefined}
        large
        right={<IconButton name="search" onPress={() => router.push('/search')} />}
      />

      {isLoading ? (
        <Loading label={t('properties.loading')} />
      ) : isError ? (
        <EmptyState
          icon="cloud-offline-outline"
          title={t('properties.loadError')}
          subtitle={(error as Error)?.message}
          action={<Button title={t('common.retry')} variant="ghost" onPress={() => refetch()} />}
        />
      ) : (
        <FlatList
          data={properties as Property[]}
          keyExtractor={(p) => String(p.id)}
          contentContainerStyle={styles.list}
          refreshControl={
            <RefreshControl
              refreshing={isRefetching}
              onRefresh={refetch}
              tintColor={colors.teal600}
            />
          }
          ListHeaderComponent={
            <View style={{ gap: spacing[3], marginBottom: spacing[4] }}>
              <Pressable style={styles.searchBar} onPress={() => router.push('/search')}>
                <Ionicons name="search" size={18} color={colors.slate400} />
                <Text style={styles.searchPlaceholder}>{t('properties.searchPlaceholder')}</Text>
              </Pressable>
              <Button
                title={t('properties.add')}
                variant="ghost"
                icon="add"
                dashed
                block
                onPress={() => router.push('/property/add')}
              />
            </View>
          }
          renderItem={({ item }) => (
            <View style={{ marginBottom: spacing[3] }}>
              <PropertyCard property={item} onPress={() => router.push(`/property/${item.id}`)} />
            </View>
          )}
          ListEmptyComponent={
            <EmptyState
              icon="home-outline"
              title={t('properties.emptyTitle')}
              subtitle={t('properties.emptySubtitle')}
              action={
                <Button title={t('properties.add')} icon="add" onPress={() => router.push('/property/add')} />
              }
            />
          }
        />
      )}
    </View>
  );
}

const styles = StyleSheet.create({
  list: { padding: spacing[4], paddingBottom: spacing[9] },
  searchBar: {
    flexDirection: 'row',
    alignItems: 'center',
    gap: 10,
    backgroundColor: colors.surface,
    borderWidth: 1,
    borderColor: colors.border,
    borderRadius: radii.md,
    paddingHorizontal: spacing[4],
    height: 48,
  },
  searchPlaceholder: { color: colors.textMuted2, fontSize: fontSize.sm, flex: 1 },
});