import { useCallback, useEffect, useLayoutEffect, useMemo, useState } from 'react';
import {
  ActivityIndicator,
  Alert,
  FlatList,
  Image,
  InteractionManager,
  KeyboardAvoidingView,
  Modal,
  Pressable,
  StyleSheet,
  TextInput,
  View,
  Platform,
} from 'react-native';
import DateTimePicker from '@react-native-community/datetimepicker';
import * as ImagePicker from 'expo-image-picker';
import { ResizeMode, Video } from 'expo-av';

import { ThemedText } from '@/components/themed-text';
import { ThemedView } from '@/components/themed-view';
import { IconSymbol } from '@/components/ui/icon-symbol';
import { Colors, Fonts } from '@/constants/theme';
import { useTranslation } from '@/localization/i18n';
import { dbPromise, initCoreTables } from '@/services/db';
import { useColorScheme } from '@/hooks/use-color-scheme';
import { ThemedButton } from '@/components/themed-button';
import { IconButton } from '@/components/icon-button';
import { ZoomImageModal } from '@/components/zoom-image-modal';
import { useLocalSearchParams, useRouter } from 'expo-router';
import { useFocusEffect, useNavigation } from '@react-navigation/native';

type FieldRow = {
  id: number;
  name: string | null;
};

type CropRow = {
  id: number;
  field_id: number | null;
  crop_name: string | null;
  variety: string | null;
  planting_date: string | null;
  expected_harvest_date: string | null;
  photo_uri: string | null;
  field_name: string | null;
};

export default function CropsScreen() {
  const { t } = useTranslation();
  const router = useRouter();
  const navigation = useNavigation();
  const { from } = useLocalSearchParams<{ from?: string }>();
  const theme = useColorScheme() ?? 'light';
  const palette = Colors[theme];

  useLayoutEffect(() => {
    if (from === 'home') {
      navigation.setOptions({
        headerLeft: () => (
          <Pressable onPress={() => router.replace('/')} hitSlop={10} style={{ paddingHorizontal: 8 }}>
            <IconSymbol size={20} name="chevron.left" color={palette.text} />
          </Pressable>
        ),
      });
    }
  }, [from, navigation, palette.text, router]);
  const pageSize = 12;
  const [crops, setCrops] = useState<CropRow[]>([]);
  const [fields, setFields] = useState<FieldRow[]>([]);
  const [status, setStatus] = useState(t('crops.loading'));
  const [selectedFieldId, setSelectedFieldId] = useState<number | null>(null);
  const [cropName, setCropName] = useState('');
  const [variety, setVariety] = useState('');
  const [plantingDate, setPlantingDate] = useState('');
  const [harvestDate, setHarvestDate] = useState('');
  const [photoUri, setPhotoUri] = useState<string | null>(null);
  const [showPlantingPicker, setShowPlantingPicker] = useState(false);
  const [showHarvestPicker, setShowHarvestPicker] = useState(false);
  const [newModalOpen, setNewModalOpen] = useState(false);
  const [editModalOpen, setEditModalOpen] = useState(false);
  const [editingId, setEditingId] = useState<number | null>(null);
  const [editFieldId, setEditFieldId] = useState<number | null>(null);
  const [editName, setEditName] = useState('');
  const [editVariety, setEditVariety] = useState('');
  const [editPlantingDate, setEditPlantingDate] = useState('');
  const [editHarvestDate, setEditHarvestDate] = useState('');
  const [editPhotoUri, setEditPhotoUri] = useState<string | null>(null);
  const [zoomUri, setZoomUri] = useState<string | null>(null);
  const [pendingZoomUri, setPendingZoomUri] = useState<string | null>(null);
  const [showEditPlantingPicker, setShowEditPlantingPicker] = useState(false);
  const [showEditHarvestPicker, setShowEditHarvestPicker] = useState(false);
  const [fieldModalOpen, setFieldModalOpen] = useState(false);
  const [fieldModalTarget, setFieldModalTarget] = useState<'new' | 'edit'>('new');
  const [newErrors, setNewErrors] = useState<{ field?: string; name?: string }>({});
  const [editErrors, setEditErrors] = useState<{ field?: string; name?: string }>({});
  const [page, setPage] = useState(1);
  const [hasMore, setHasMore] = useState(true);
  const [loadingMore, setLoadingMore] = useState(false);

  useEffect(() => {
    if (!newModalOpen && !editModalOpen && pendingZoomUri) {
      const uri = pendingZoomUri;
      setPendingZoomUri(null);
      InteractionManager.runAfterInteractions(() => {
        setTimeout(() => setZoomUri(uri), 150);
      });
    }
  }, [newModalOpen, editModalOpen, pendingZoomUri]);

  const selectedField = useMemo(
    () => fields.find((item) => item.id === selectedFieldId),
    [fields, selectedFieldId]
  );
  const selectedEditField = useMemo(
    () => fields.find((item) => item.id === editFieldId),
    [fields, editFieldId]
  );

  useEffect(() => {
    let isActive = true;

    async function loadData() {
      try {
        await initCoreTables();
        const db = await dbPromise;
        const fieldRows = await db.getAllAsync<FieldRow>(
          'SELECT id, name FROM fields ORDER BY name ASC;'
        );
        if (!isActive) return;
        setFields(fieldRows);
        await fetchCropsPage(1, true, isActive);
      } catch (error) {
        if (isActive) setStatus(`Error: ${String(error)}`);
      }
    }

    loadData();
    return () => {
      isActive = false;
    };
  }, [t]);

  useFocusEffect(
    useCallback(() => {
      fetchCropsPage(1, true);
    }, [])
  );

  async function fetchCropsPage(pageToLoad: number, replace: boolean, isActive = true) {
    try {
      const db = await dbPromise;
      const cropRows = await db.getAllAsync<CropRow>(
        `SELECT c.id, c.field_id, c.crop_name, c.variety, c.planting_date, c.expected_harvest_date, c.photo_uri,
                f.name as field_name
         FROM crops c
         LEFT JOIN fields f ON f.id = c.field_id
         ORDER BY c.id DESC
         LIMIT ? OFFSET ?;`,
        pageSize,
        (pageToLoad - 1) * pageSize
      );
      if (!isActive) return;
      setCrops((prev) => (replace ? cropRows : [...prev, ...cropRows]));
      setHasMore(cropRows.length === pageSize);
      setPage(pageToLoad);
      if (replace) {
        setStatus(cropRows.length === 0 ? t('crops.empty') : '');
      }
    } catch (error) {
      if (isActive) setStatus(`Error: ${String(error)}`);
    } finally {
      if (isActive) setLoadingMore(false);
    }
  }

  async function handleLoadMore() {
    if (loadingMore || !hasMore) return;
    setLoadingMore(true);
    const nextPage = page + 1;
    await fetchCropsPage(nextPage, false);
  }

  async function handleSave() {
    const trimmedName = cropName.trim();
    const nextErrors: { field?: string; name?: string } = {};
    if (!selectedFieldId) {
      nextErrors.field = t('crops.fieldRequired');
    }
    if (!trimmedName) {
      nextErrors.name = t('crops.nameRequired');
    }
    setNewErrors(nextErrors);
    if (Object.keys(nextErrors).length > 0) {
      setStatus(nextErrors.field ?? nextErrors.name ?? t('crops.fieldRequired'));
      return false;
    }
    try {
      const db = await dbPromise;
      await db.runAsync(
        'INSERT INTO crops (field_id, crop_name, variety, planting_date, expected_harvest_date, photo_uri) VALUES (?, ?, ?, ?, ?, ?);',
        selectedFieldId,
        trimmedName,
        variety.trim() || null,
        plantingDate.trim() || null,
        harvestDate.trim() || null,
        photoUri
      );
      setCropName('');
      setVariety('');
      setPlantingDate('');
      setHarvestDate('');
      setPhotoUri(null);
      setNewErrors({});
      await fetchCropsPage(1, true);
      setStatus(t('crops.saved'));
      return true;
    } catch (error) {
      setStatus(`Error: ${String(error)}`);
      return false;
    }
  }

  async function handleDelete(id: number) {
    try {
      const db = await dbPromise;
      await db.runAsync('DELETE FROM crops WHERE id = ?;', id);
      await fetchCropsPage(1, true);
    } catch (error) {
      setStatus(`Error: ${String(error)}`);
    }
  }

  function confirmDelete(id: number) {
    Alert.alert(
      t('crops.deleteTitle'),
      t('crops.deleteMessage'),
      [
        { text: t('crops.cancel'), style: 'cancel' },
        { text: t('crops.delete'), style: 'destructive', onPress: () => handleDelete(id) },
      ]
    );
  }

  function startEdit(crop: CropRow) {
    router.push(`/logbook/crops/${crop.id}`);
  }

  function cancelEdit() {
    setEditingId(null);
    setEditFieldId(null);
    setEditName('');
    setEditVariety('');
    setEditPlantingDate('');
    setEditHarvestDate('');
    setEditPhotoUri(null);
    setEditErrors({});
    setEditModalOpen(false);
  }

  async function handleUpdate() {
    if (!editingId) return;
    const trimmedName = editName.trim();
    const nextErrors: { field?: string; name?: string } = {};
    if (!editFieldId) {
      nextErrors.field = t('crops.fieldRequired');
    }
    if (!trimmedName) {
      nextErrors.name = t('crops.nameRequired');
    }
    setEditErrors(nextErrors);
    if (Object.keys(nextErrors).length > 0) {
      setStatus(nextErrors.field ?? nextErrors.name ?? t('crops.fieldRequired'));
      return;
    }
    try {
      const db = await dbPromise;
      await db.runAsync(
        'UPDATE crops SET field_id = ?, crop_name = ?, variety = ?, planting_date = ?, expected_harvest_date = ?, photo_uri = ? WHERE id = ?;',
        editFieldId,
        trimmedName,
        editVariety.trim() || null,
        editPlantingDate.trim() || null,
        editHarvestDate.trim() || null,
        editPhotoUri,
        editingId
      );
      setEditModalOpen(false);
      setEditingId(null);
      setEditErrors({});
      await fetchCropsPage(1, true);
      setStatus(t('crops.saved'));
    } catch (error) {
      setStatus(`Error: ${String(error)}`);
    }
  }

  const inputStyle = [
    styles.input,
    { borderColor: palette.border, backgroundColor: palette.input, color: palette.text },
  ];

  return (
    <>
      <FlatList
        data={crops}
        keyExtractor={(item) => String(item.id)}
        renderItem={({ item }) => (
          <Pressable onPress={() => startEdit(item)}>
          <ThemedView style={[styles.card, { backgroundColor: palette.card, borderColor: palette.border }]}>
              <ThemedText type="subtitle">{item.crop_name || t('crops.untitled')}</ThemedText>
              <ThemedText style={styles.meta}>
                {item.field_name || t('crops.noField')}
              </ThemedText>
            {item.variety ? <ThemedText>{item.variety}</ThemedText> : null}
            {normalizeMediaUri(item.photo_uri) ? (
              isVideoUri(normalizeMediaUri(item.photo_uri) as string) ? (
                <Video
                  source={{ uri: normalizeMediaUri(item.photo_uri) as string }}
                  style={styles.videoPreview}
                  useNativeControls
                  resizeMode={ResizeMode.CONTAIN}
                  isMuted
                />
              ) : (
                <Pressable onPress={() => setZoomUri(normalizeMediaUri(item.photo_uri) as string)}>
                  <Image
                    source={{ uri: normalizeMediaUri(item.photo_uri) as string }}
                    style={styles.photoPreview}
                    resizeMode="contain"
                  />
                </Pressable>
              )
            ) : null}
            {item.planting_date ? (
                <ThemedText style={styles.meta}>
                  {t('crops.plantingLabel')} {item.planting_date}
                </ThemedText>
              ) : null}
              {item.expected_harvest_date ? (
                <ThemedText style={styles.meta}>
                  {t('crops.harvestLabel')} {item.expected_harvest_date}
                </ThemedText>
              ) : null}
              <View style={styles.buttonRow}>
                <IconButton
                  name="trash"
                  onPress={() => confirmDelete(item.id)}
                  accessibilityLabel={t('crops.delete')}
                  variant="danger"
                />
              </View>
            </ThemedView>
          </Pressable>
        )}
        ItemSeparatorComponent={() => <View style={styles.separator} />}
        onEndReached={handleLoadMore}
        onEndReachedThreshold={0.4}
        ListHeaderComponent={
          <View>
            <ThemedView style={styles.hero}>
              <Image source={require('@/assets/images/crops.jpg')} style={styles.heroImage} />
            </ThemedView>
            <ThemedView style={styles.titleContainer}>
              <ThemedText type="title" style={{ fontFamily: Fonts.rounded }}>
                {t('crops.title')}
              </ThemedText>
            </ThemedView>

            {status ? (
              <ThemedView style={styles.section}>
                <ThemedText>{status}</ThemedText>
              </ThemedView>
            ) : null}

            <ThemedView style={styles.section}>
              <Pressable
                style={styles.newButton}
                onPress={() => {
                  router.push('/logbook/crops/new');
                }}>
                <IconSymbol size={18} name="plus.circle.fill" color="#2F7D4F" />
                <ThemedText style={styles.newButtonText}>{t('crops.new')}</ThemedText>
              </Pressable>
            </ThemedView>
          </View>
        }
        ListFooterComponent={
          <View style={styles.footer}>
            {loadingMore ? <ActivityIndicator /> : null}
          </View>
        }
      />

      <Modal transparent visible={fieldModalOpen} animationType="fade">
        <Pressable
          style={styles.modalOverlay}
          onPress={() => setFieldModalOpen(false)}>
          <View style={[styles.modalCard, { backgroundColor: palette.card, borderColor: palette.border }]}>
            <ThemedText type="subtitle">{t('crops.selectField')}</ThemedText>
            <FlatList
              data={fields}
              keyExtractor={(item) => String(item.id)}
              renderItem={({ item }) => (
                <Pressable
                  onPress={() => {
                    if (fieldModalTarget === 'new') {
                      setSelectedFieldId(item.id);
                      setNewErrors((prev) => ({ ...prev, field: undefined }));
                      setNewModalOpen(true);
                    } else {
                      setEditFieldId(item.id);
                      setEditErrors((prev) => ({ ...prev, field: undefined }));
                      setEditModalOpen(true);
                    }
                    setFieldModalOpen(false);
                  }}
                  style={styles.modalItem}>
                  <ThemedText>{item.name || t('crops.untitled')}</ThemedText>
                </Pressable>
              )}
            />
          </View>
        </Pressable>
      </Modal>

      <Modal
        transparent
        visible={newModalOpen}
        animationType="slide"
        onRequestClose={() => setNewModalOpen(false)}>
        <View style={styles.sheetOverlay}>
          <Pressable style={styles.sheetBackdrop} onPress={() => setNewModalOpen(false)} />
          <KeyboardAvoidingView
            behavior={Platform.OS === 'ios' ? 'padding' : undefined}
            keyboardVerticalOffset={Platform.OS === 'ios' ? 0 : 0}
            style={styles.keyboardAvoid}>
            <View style={[styles.sheet, { backgroundColor: palette.card, borderColor: palette.border }]}>
              <FlatList
                data={[{ key: 'new' }]}
                keyExtractor={(item) => item.key}
                contentContainerStyle={styles.sheetListContent}
                renderItem={() => (
                  <View style={styles.sheetContent}>
                  <ThemedText type="subtitle">{t('crops.new')}</ThemedText>
                  <ThemedText>
                    {t('crops.field')}
                    <ThemedText style={styles.requiredMark}> *</ThemedText>
                  </ThemedText>
                  <ThemedButton
                    title={selectedField?.name || t('crops.selectField')}
                    onPress={() => {
                      setFieldModalTarget('new');
                      setNewModalOpen(false);
                      setFieldModalOpen(true);
                    }}
                    variant="secondary"
                  />
                  {newErrors.field ? (
                    <ThemedText style={styles.errorText}>{newErrors.field}</ThemedText>
                  ) : null}
                  <ThemedText>
                    {t('crops.name')}
                    <ThemedText style={styles.requiredMark}> *</ThemedText>
                  </ThemedText>
                  <TextInput
                    value={cropName}
                    onChangeText={(value) => {
                      setCropName(value);
                      if (newErrors.name) {
                        setNewErrors((prev) => ({ ...prev, name: undefined }));
                      }
                    }}
                    placeholder={t('crops.namePlaceholder')}
                    style={inputStyle}
                  />
                  {newErrors.name ? (
                    <ThemedText style={styles.errorText}>{newErrors.name}</ThemedText>
                  ) : null}
                  <ThemedText>{t('crops.variety')}</ThemedText>
                  <TextInput
                    value={variety}
                    onChangeText={setVariety}
                    placeholder={t('crops.varietyPlaceholder')}
                    style={inputStyle}
                  />
                  <ThemedText>{t('crops.addMedia')}</ThemedText>
                  {normalizeMediaUri(photoUri) ? (
                    isVideoUri(normalizeMediaUri(photoUri) as string) ? (
                      <Video
                        source={{ uri: normalizeMediaUri(photoUri) as string }}
                        style={styles.videoPreview}
                        useNativeControls
                        resizeMode={ResizeMode.CONTAIN}
                        isMuted
                      />
                    ) : (
                      <Pressable
                        onPress={() => {
                          setPendingZoomUri(normalizeMediaUri(photoUri) as string);
                          setNewModalOpen(false);
                        }}>
                        <Image
                          source={{ uri: normalizeMediaUri(photoUri) as string }}
                          style={styles.photoPreview}
                          resizeMode="contain"
                        />
                      </Pressable>
                    )
                  ) : (
                    <ThemedText style={styles.photoPlaceholder}>{t('crops.noPhoto')}</ThemedText>
                  )}
                  <View style={styles.photoRow}>
                    <ThemedButton
                      title={t('crops.pickFromGallery')}
                      onPress={() => handlePickPhoto(setPhotoUri)}
                      variant="secondary"
                    />
                    <ThemedButton
                      title={t('crops.takeMedia')}
                      onPress={() =>
                        handleTakePhoto(setPhotoUri, (code) =>
                          setStatus(
                            code === 'cameraDenied' ? t('tasks.cameraDenied') : t('tasks.cameraError')
                          )
                        )
                      }
                      variant="secondary"
                    />
                  </View>
                  <ThemedText>{t('crops.planting')}</ThemedText>
                  <Pressable onPress={() => setShowPlantingPicker(true)} style={styles.dateInput}>
                    <ThemedText style={styles.dateValue}>
                      {plantingDate ? formatDateLabel(plantingDate) : t('crops.plantingPlaceholder')}
                    </ThemedText>
                  </Pressable>
            {showPlantingPicker ? (
              <>
                {Platform.OS === 'ios' ? (
                  <View style={styles.pickerRow}>
                    <ThemedButton
                      title={t('crops.today')}
                      onPress={() => {
                        setPlantingDate(toDateOnly(new Date()));
                        setShowPlantingPicker(false);
                      }}
                      variant="secondary"
                    />
                    <ThemedButton
                      title={t('crops.done')}
                      onPress={() => setShowPlantingPicker(false)}
                      variant="secondary"
                    />
                  </View>
                ) : null}
                <DateTimePicker
                  value={plantingDate ? new Date(plantingDate) : new Date()}
                  mode="date"
                  display={Platform.OS === 'ios' ? 'inline' : 'calendar'}
                  onChange={(event, date) => {
                    if (date) setPlantingDate(toDateOnly(date));
                    if (Platform.OS !== 'ios') {
                      setShowPlantingPicker(false);
                    }
                  }}
                />
              </>
            ) : null}
                  <ThemedText>{t('crops.harvest')}</ThemedText>
                  <Pressable onPress={() => setShowHarvestPicker(true)} style={styles.dateInput}>
                    <ThemedText style={styles.dateValue}>
                      {harvestDate ? formatDateLabel(harvestDate) : t('crops.harvestPlaceholder')}
                    </ThemedText>
                  </Pressable>
            {showHarvestPicker ? (
              <>
                {Platform.OS === 'ios' ? (
                  <View style={styles.pickerRow}>
                    <ThemedButton
                      title={t('crops.today')}
                      onPress={() => {
                        setHarvestDate(toDateOnly(new Date()));
                        setShowHarvestPicker(false);
                      }}
                      variant="secondary"
                    />
                    <ThemedButton
                      title={t('crops.done')}
                      onPress={() => setShowHarvestPicker(false)}
                      variant="secondary"
                    />
                  </View>
                ) : null}
                <DateTimePicker
                  value={harvestDate ? new Date(harvestDate) : new Date()}
                  mode="date"
                  display={Platform.OS === 'ios' ? 'inline' : 'calendar'}
                  onChange={(event, date) => {
                    if (date) setHarvestDate(toDateOnly(date));
                    if (Platform.OS !== 'ios') {
                      setShowHarvestPicker(false);
                    }
                  }}
                />
              </>
            ) : null}
                  <View style={styles.modalActions}>
                    <ThemedButton
                      title={t('crops.cancel')}
                      onPress={() => setNewModalOpen(false)}
                      variant="secondary"
                    />
                    <ThemedButton
                      title={t('crops.save')}
                      onPress={async () => {
                        const ok = await handleSave();
                        if (ok) setNewModalOpen(false);
                      }}
                    />
                  </View>
                  </View>
                )}
                ListFooterComponent={<View style={styles.sheetFooter} />}
              />
            </View>
          </KeyboardAvoidingView>
        </View>
      </Modal>

      <Modal transparent visible={editModalOpen} animationType="slide">
        <View style={styles.sheetOverlay}>
          <Pressable style={styles.sheetBackdrop} onPress={cancelEdit} />
          <KeyboardAvoidingView
            behavior={Platform.OS === 'ios' ? 'padding' : undefined}
            keyboardVerticalOffset={Platform.OS === 'ios' ? 0 : 0}
            style={styles.keyboardAvoid}>
            <View style={[styles.sheet, { backgroundColor: palette.card, borderColor: palette.border }]}>
              <FlatList
                data={[{ key: 'edit' }]}
                keyExtractor={(item) => item.key}
                contentContainerStyle={styles.sheetListContent}
                renderItem={() => (
                  <View style={styles.sheetContent}>
                  <ThemedText type="subtitle">{t('crops.edit')}</ThemedText>
                  <ThemedText>
                    {t('crops.field')}
                    <ThemedText style={styles.requiredMark}> *</ThemedText>
                  </ThemedText>
                  <ThemedButton
                    title={selectedEditField?.name || t('crops.selectField')}
                    onPress={() => {
                      setFieldModalTarget('edit');
                      setEditModalOpen(false);
                      setFieldModalOpen(true);
                    }}
                    variant="secondary"
                  />
                  {editErrors.field ? (
                    <ThemedText style={styles.errorText}>{editErrors.field}</ThemedText>
                  ) : null}
                  <ThemedText>
                    {t('crops.name')}
                    <ThemedText style={styles.requiredMark}> *</ThemedText>
                  </ThemedText>
                  <TextInput
                    value={editName}
                    onChangeText={(value) => {
                      setEditName(value);
                      if (editErrors.name) {
                        setEditErrors((prev) => ({ ...prev, name: undefined }));
                      }
                    }}
                    placeholder={t('crops.namePlaceholder')}
                    style={inputStyle}
                  />
                  {editErrors.name ? (
                    <ThemedText style={styles.errorText}>{editErrors.name}</ThemedText>
                  ) : null}
                  <ThemedText>{t('crops.variety')}</ThemedText>
                  <TextInput
                    value={editVariety}
                    onChangeText={setEditVariety}
                    placeholder={t('crops.varietyPlaceholder')}
                    style={inputStyle}
                  />
                  <ThemedText>{t('crops.addMedia')}</ThemedText>
                  {normalizeMediaUri(editPhotoUri) ? (
                    isVideoUri(normalizeMediaUri(editPhotoUri) as string) ? (
                      <Video
                        source={{ uri: normalizeMediaUri(editPhotoUri) as string }}
                        style={styles.videoPreview}
                        useNativeControls
                        resizeMode={ResizeMode.CONTAIN}
                        isMuted
                      />
                    ) : (
                      <Pressable
                        onPress={() => {
                          setPendingZoomUri(normalizeMediaUri(editPhotoUri) as string);
                          setEditModalOpen(false);
                        }}>
                        <Image
                          source={{ uri: normalizeMediaUri(editPhotoUri) as string }}
                          style={styles.photoPreview}
                          resizeMode="contain"
                        />
                      </Pressable>
                    )
                  ) : (
                    <ThemedText style={styles.photoPlaceholder}>{t('crops.noPhoto')}</ThemedText>
                  )}
                  <View style={styles.photoRow}>
                    <ThemedButton
                      title={t('crops.pickFromGallery')}
                      onPress={() => handlePickPhoto(setEditPhotoUri)}
                      variant="secondary"
                    />
                    <ThemedButton
                      title={t('crops.takeMedia')}
                      onPress={() =>
                        handleTakePhoto(setEditPhotoUri, (code) =>
                          setStatus(
                            code === 'cameraDenied' ? t('tasks.cameraDenied') : t('tasks.cameraError')
                          )
                        )
                      }
                      variant="secondary"
                    />
                  </View>
                  <ThemedText>{t('crops.planting')}</ThemedText>
                  <Pressable onPress={() => setShowEditPlantingPicker(true)} style={styles.dateInput}>
                    <ThemedText style={styles.dateValue}>
                      {editPlantingDate
                        ? formatDateLabel(editPlantingDate)
                        : t('crops.plantingPlaceholder')}
                    </ThemedText>
                  </Pressable>
            {showEditPlantingPicker ? (
              <>
                {Platform.OS === 'ios' ? (
                  <View style={styles.pickerRow}>
                    <ThemedButton
                      title={t('crops.today')}
                      onPress={() => {
                        setEditPlantingDate(toDateOnly(new Date()));
                        setShowEditPlantingPicker(false);
                      }}
                      variant="secondary"
                    />
                    <ThemedButton
                      title={t('crops.done')}
                      onPress={() => setShowEditPlantingPicker(false)}
                      variant="secondary"
                    />
                  </View>
                ) : null}
                <DateTimePicker
                  value={editPlantingDate ? new Date(editPlantingDate) : new Date()}
                  mode="date"
                  display={Platform.OS === 'ios' ? 'inline' : 'calendar'}
                  onChange={(event, date) => {
                    if (date) setEditPlantingDate(toDateOnly(date));
                    if (Platform.OS !== 'ios') {
                      setShowEditPlantingPicker(false);
                    }
                  }}
                />
              </>
            ) : null}
                  <ThemedText>{t('crops.harvest')}</ThemedText>
                  <Pressable onPress={() => setShowEditHarvestPicker(true)} style={styles.dateInput}>
                    <ThemedText style={styles.dateValue}>
                      {editHarvestDate
                        ? formatDateLabel(editHarvestDate)
                        : t('crops.harvestPlaceholder')}
                    </ThemedText>
                  </Pressable>
            {showEditHarvestPicker ? (
              <>
                {Platform.OS === 'ios' ? (
                  <View style={styles.pickerRow}>
                    <ThemedButton
                      title={t('crops.today')}
                      onPress={() => {
                        setEditHarvestDate(toDateOnly(new Date()));
                        setShowEditHarvestPicker(false);
                      }}
                      variant="secondary"
                    />
                    <ThemedButton
                      title={t('crops.done')}
                      onPress={() => setShowEditHarvestPicker(false)}
                      variant="secondary"
                    />
                  </View>
                ) : null}
                <DateTimePicker
                  value={editHarvestDate ? new Date(editHarvestDate) : new Date()}
                  mode="date"
                  display={Platform.OS === 'ios' ? 'inline' : 'calendar'}
                  onChange={(event, date) => {
                    if (date) setEditHarvestDate(toDateOnly(date));
                    if (Platform.OS !== 'ios') {
                      setShowEditHarvestPicker(false);
                    }
                  }}
                />
              </>
            ) : null}
                  <View style={styles.modalActions}>
                    <ThemedButton title={t('crops.cancel')} onPress={cancelEdit} variant="secondary" />
                    <ThemedButton title={t('crops.update')} onPress={handleUpdate} />
                  </View>
                  </View>
                )}
                ListFooterComponent={<View style={styles.sheetFooter} />}
              />
            </View>
          </KeyboardAvoidingView>
        </View>
      </Modal>
      <ZoomImageModal
        uri={zoomUri}
        visible={Boolean(zoomUri)}
        onClose={() => setZoomUri(null)}
      />
    </>
  );
}

function toDateOnly(date: Date) {
  return date.toISOString().slice(0, 10);
}

function formatDateLabel(value: string) {
  try {
    return new Date(value).toLocaleDateString();
  } catch {
    return value;
  }
}

async function handlePickPhoto(setter: (value: string | null) => void) {
  const result = await ImagePicker.launchImageLibraryAsync({
    mediaTypes: getMediaTypes(),
    quality: 1,
  });
  if (result.canceled) return;
  const asset = result.assets[0];
  setter(asset.uri);
}

async function handleTakePhoto(
  setter: (value: string | null) => void,
  onError?: (msg: string) => void
) {
  try {
    const permission = await ImagePicker.requestCameraPermissionsAsync();
    if (!permission.granted) {
      onError?.('cameraDenied');
      return;
    }
    const result = await ImagePicker.launchCameraAsync({
      mediaTypes: getMediaTypes(),
      quality: 1,
    });
    if (result.canceled) return;
    const asset = result.assets[0];
    setter(asset.uri);
  } catch {
    onError?.('cameraError');
  }
}

function getMediaTypes() {
  const mediaType = (ImagePicker as {
    MediaType?: { Image?: unknown; Images?: unknown; Video?: unknown; Videos?: unknown };
  }).MediaType;
  const imageType = mediaType?.Image ?? mediaType?.Images;
  const videoType = mediaType?.Video ?? mediaType?.Videos;
  if (imageType && videoType) {
    return [imageType, videoType];
  }
  return imageType ?? videoType ?? ['images', 'videos'];
}

function isVideoUri(uri: string) {
  return /\.(mp4|mov|m4v|webm|avi|mkv)(\?.*)?$/i.test(uri);
}

function normalizeMediaUri(uri?: string | null) {
  if (typeof uri !== 'string') return null;
  const trimmed = uri.trim();
  return trimmed ? trimmed : null;
}

const styles = StyleSheet.create({
  hero: {
    backgroundColor: '#E8E6DA',
    aspectRatio: 16 / 9,
    width: '100%',
  },
  heroImage: {
    width: '100%',
    height: '100%',
  },
  titleContainer: {
    gap: 8,
    paddingHorizontal: 16,
    paddingVertical: 12,
  },
  section: {
    gap: 8,
    marginBottom: 16,
    paddingHorizontal: 16,
  },
  card: {
    borderRadius: 12,
    borderWidth: 1,
    borderColor: '#C6C6C6',
    padding: 12,
    marginHorizontal: 16,
    gap: 6,
  },
  meta: {
    opacity: 0.7,
  },
  input: {
    borderRadius: 10,
    borderWidth: 1,
    borderColor: '#B9B9B9',
    paddingHorizontal: 12,
    paddingVertical: 10,
    fontSize: 15,
  },
  requiredMark: {
    color: '#C0392B',
    fontWeight: '700',
  },
  errorText: {
    color: '#C0392B',
    fontSize: 12,
  },
  photoPreview: {
    height: 200,
    width: '100%',
    borderRadius: 12,
  },
  videoPreview: {
    width: '100%',
    height: 200,
    borderRadius: 12,
    backgroundColor: '#1C1C1C',
  },
  photoRow: {
    flexDirection: 'row',
    gap: 8,
  },
  photoPlaceholder: {
    opacity: 0.6,
  },
  dateInput: {
    borderRadius: 10,
    borderWidth: 1,
    borderColor: '#B9B9B9',
    paddingHorizontal: 12,
    paddingVertical: 10,
  },
  dateValue: {
    fontSize: 15,
    opacity: 0.9,
  },
  pickerRow: {
    flexDirection: 'row',
    gap: 8,
  },
  buttonRow: {
    alignSelf: 'flex-start',
  },
  separator: {
    height: 12,
  },
  footer: {
    height: 24,
  },
  modalOverlay: {
    flex: 1,
    backgroundColor: 'rgba(0,0,0,0.3)',
    justifyContent: 'center',
    padding: 16,
  },
  modalCard: {
    borderRadius: 12,
    borderWidth: 1,
    borderColor: '#C6C6C6',
    padding: 16,
    backgroundColor: '#FFFFFF',
    gap: 8,
    maxHeight: '70%',
  },
  modalActions: {
    flexDirection: 'row',
    justifyContent: 'space-between',
    gap: 12,
  },
  newButton: {
    flexDirection: 'row',
    alignItems: 'center',
    gap: 8,
    borderRadius: 10,
    borderWidth: 1,
    borderColor: '#B9B9B9',
    paddingHorizontal: 12,
    paddingVertical: 10,
    alignSelf: 'flex-start',
  },
  newButtonText: {
    fontSize: 15,
    fontWeight: '600',
  },
  sheetOverlay: {
    flex: 1,
    backgroundColor: 'rgba(0,0,0,0.3)',
    justifyContent: 'flex-end',
  },
  sheetBackdrop: {
    ...StyleSheet.absoluteFillObject,
  },
  sheet: {
    borderTopLeftRadius: 16,
    borderTopRightRadius: 16,
    borderWidth: 1,
    borderColor: '#C6C6C6',
    padding: 16,
    backgroundColor: '#FFFFFF',
    gap: 10,
    maxHeight: '85%',
  },
  sheetContent: {
    gap: 10,
  },
  sheetListContent: {
    paddingBottom: 80,
  },
  sheetFooter: {
    height: 24,
  },
  keyboardAvoid: {
    width: '100%',
    flex: 1,
    justifyContent: 'flex-end',
  },
  modalItem: {
    paddingVertical: 8,
  },
});