import React, { useState } from "react";
import {
  View,
  Text,
  TouchableOpacity,
  StyleSheet,
  Modal,
  Platform,
  ScrollView,
} from "react-native";
import { Ionicons } from "@expo/vector-icons";
import { TripStatus } from "./types";
import { useI18n } from "@/hooks/use-i18n";
import { useThemeContext } from "@/hooks/use-theme-context";

interface StatusDropdownProps {
  value: TripStatus | null;
  onChange: (value: TripStatus | null) => void;
}

export default function StatusDropdown({
  value,
  onChange,
}: StatusDropdownProps) {
  const { t } = useI18n();
  const { colors } = useThemeContext();
  const [isOpen, setIsOpen] = useState(false);

  const STATUS_OPTIONS: Array<{ value: TripStatus | null; label: string }> = [
    { value: null, label: t("diary.statusDropdown.placeholder") },
    { value: 0, label: t("diary.statusDropdown.created") },
    { value: 1, label: t("diary.statusDropdown.pending") },
    { value: 2, label: t("diary.statusDropdown.approved") },
    { value: 3, label: t("diary.statusDropdown.active") },
    { value: 4, label: t("diary.statusDropdown.completed") },
    { value: 5, label: t("diary.statusDropdown.cancelled") },
  ];

  const selectedLabel =
    STATUS_OPTIONS.find((opt) => opt.value === value)?.label || t("diary.statusDropdown.placeholder");

  const handleSelect = (status: TripStatus | null) => {
    onChange(status);
    setIsOpen(false);
  };

  const themedStyles = {
    label: { color: colors.text },
    selector: { backgroundColor: colors.card, borderColor: colors.border },
    selectorText: { color: colors.text },
    placeholder: { color: colors.textSecondary },
    modalContent: { backgroundColor: colors.card },
    option: { borderBottomColor: colors.separator },
    selectedOption: { backgroundColor: colors.backgroundSecondary },
    optionText: { color: colors.text },
  };

  return (
    <View style={styles.container}>
      <Text style={[styles.label, themedStyles.label]}>{t("diary.statusDropdown.label")}</Text>
      <TouchableOpacity
        style={[styles.selector, themedStyles.selector]}
        onPress={() => setIsOpen(true)}
        activeOpacity={0.7}
      >
        <Text style={[styles.selectorText, themedStyles.selectorText, !value && themedStyles.placeholder]}>
          {selectedLabel}
        </Text>
        <Ionicons name="ellipsis-horizontal" size={20} color={colors.textSecondary} />
      </TouchableOpacity>

      <Modal
        visible={isOpen}
        transparent
        animationType="fade"
        onRequestClose={() => setIsOpen(false)}
      >
        <TouchableOpacity
          style={styles.modalOverlay}
          activeOpacity={1}
          onPress={() => setIsOpen(false)}
        >
          <View style={[styles.modalContent, themedStyles.modalContent]}>
            <ScrollView>
              {STATUS_OPTIONS.map((option, index) => (
                <TouchableOpacity
                  key={index}
                  style={[
                    styles.option,
                    themedStyles.option,
                    value === option.value && themedStyles.selectedOption,
                  ]}
                  onPress={() => handleSelect(option.value)}
                >
                  <Text
                    style={[
                      styles.optionText,
                      themedStyles.optionText,
                    ]}
                  >
                    {option.label}
                  </Text>
                  {value === option.value && (
                    <Ionicons name="checkmark" size={20} color={colors.primary} />
                  )}
                </TouchableOpacity>
              ))}
            </ScrollView>
          </View>
        </TouchableOpacity>
      </Modal>
    </View>
  );
}

const styles = StyleSheet.create({
  container: {
    marginBottom: 20,
  },
  label: {
    fontSize: 16,
    fontWeight: "600",
    marginBottom: 8,
    fontFamily: Platform.select({
      ios: "System",
      android: "Roboto",
      default: "System",
    }),
  },
  selector: {
    flexDirection: "row",
    justifyContent: "space-between",
    alignItems: "center",
    borderWidth: 1,
    borderRadius: 8,
    paddingHorizontal: 16,
    paddingVertical: 12,
  },
  selectorText: {
    fontSize: 16,
    fontFamily: Platform.select({
      ios: "System",
      android: "Roboto",
      default: "System",
    }),
  },
  modalOverlay: {
    flex: 1,
    backgroundColor: "rgba(0, 0, 0, 0.5)",
    justifyContent: "center",
    alignItems: "center",
  },
  modalContent: {
    borderRadius: 12,
    width: "80%",
    maxHeight: "60%",
    overflow: "hidden",
    shadowColor: "#000",
    shadowOffset: {
      width: 0,
      height: 4,
    },
    shadowOpacity: 0.3,
    shadowRadius: 8,
    elevation: 8,
  },
  option: {
    flexDirection: "row",
    justifyContent: "space-between",
    alignItems: "center",
    paddingHorizontal: 20,
    paddingVertical: 16,
    borderBottomWidth: 1,
  },
  optionText: {
    fontSize: 16,
    fontFamily: Platform.select({
      ios: "System",
      android: "Roboto",
      default: "System",
    }),
  },
});