import { useState, useEffect } from "react";
import {
  StyleSheet,
  Platform,
  ScrollView,
  KeyboardAvoidingView,
  View,
  ActivityIndicator,
} from "react-native";
import { TextInput, Button, Snackbar, useTheme } from "react-native-paper";
import { useLocalSearchParams, useRouter } from "expo-router";
// import { getLocation } from "@/api/locations";
import useLocationStore from "@/locationStore";

export default function EditLocation() {
  const theme = useTheme();
  const { id } = useLocalSearchParams();
  const router = useRouter();
  const [loading, setLoading] = useState(true);
  const [formData, setFormData] = useState({
    name: "",
    description: "",
    image: "",
    area: "",
    population: "",
  });

  const [message, setMessage] = useState("");
  const [visible, setVisible] = useState(false);

  const updateLocation = useLocationStore((state) => state.updateLocation);
  const getLocation = useLocationStore((state) => state.getLocation);

  useEffect(() => {
    const data = getLocation(id);
    if (data) {
      setFormData({
        name: data.name,
        description: data.description,
        image: data.image,
        area: data.area.toString(),
        population: data.population.toString(),
      });
    }
    setLoading(false);
  }, [id, getLocation]);

  const handleEditLocation = async () => {
    if (
      formData.name &&
      formData.description &&
      formData.image &&
      formData.area &&
      formData.population
    ) {
      // console.log("Form data:", formData);
      const response = await updateLocation(id, {
        name: formData.name,
        description: formData.description,
        image: formData.image,
        area: parseFloat(formData.area),
        population: parseInt(formData.population, 10),
      });

      if (response) {
        setMessage("Lokalizacja została zaktualizowana!");
        setVisible(true);
        // while (router.canGoBack()) {
        // Pop from stack until one element is left
        // router.back();
        // }
        setTimeout(() => {
          router.replace("/");
        }, 300); // Replace the last remaining stack element
      } else {
        setMessage("Wystąpił błąd podczas aktualizacji lokalizacji!");
        setVisible(true);
      }
    } else {
      setMessage("Wypełnij wszystkie pola!");
      setVisible(true);
    }
  };

  if (loading) {
    return (
      <View
        style={[styles.container, { backgroundColor: theme.colors.background }]}
      >
        <ActivityIndicator size="large" color={theme.colors.primary} />
      </View>
    );
  }

  return (
    <KeyboardAvoidingView
      style={{ flex: 1 }}
      behavior={Platform.OS === "ios" ? "padding" : "height"}
    >
      <ScrollView contentContainerStyle={styles.container}>
        <Snackbar
          visible={visible}
          onDismiss={() => setVisible(false)}
          duration={3000}
        >
          {message}
        </Snackbar>
        <TextInput
          mode="outlined"
          label="Nazwa"
          placeholder="Wpisz nazwę"
          style={{ margin: 10, width: "100%" }}
          value={formData.name}
          onChangeText={(e) => setFormData({ ...formData, name: e })}
        />
        <TextInput
          mode="outlined"
          label="Opis"
          placeholder="Wpisz opis"
          style={{ margin: 10, width: "100%" }}
          multiline={true}
          value={formData.description}
          onChangeText={(e) => setFormData({ ...formData, description: e })}
        />
        <TextInput
          mode="outlined"
          label="Link do zdjęcia"
          multiline={true}
          placeholder="Wpisz link do zdjęcia"
          style={{ margin: 10, width: "100%" }}
          value={formData.image}
          onChangeText={(e) => setFormData({ ...formData, image: e })}
        />
        <TextInput
          mode="outlined"
          label="Powierzchnia"
          placeholder="Wpisz powierzchnię"
          style={{ margin: 10, width: "100%" }}
          value={formData.area}
          keyboardType="numeric"
          onChangeText={(e) => setFormData({ ...formData, area: e })}
        />
        <TextInput
          mode="outlined"
          label="Ludność"
          placeholder="Wpisz liczbę ludności"
          style={{ margin: 10, width: "100%" }}
          value={formData.population}
          keyboardType="numeric"
          onChangeText={(e) => setFormData({ ...formData, population: e })}
        />
        <Button
          style={{ margin: 10, width: "100%" }}
          icon="plus-circle-outline"
          mode={"contained"}
          onPress={handleEditLocation}
        >
          Edytuj
        </Button>
      </ScrollView>
    </KeyboardAvoidingView>
  );
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    backgroundColor: "#25292e",
    justifyContent: "flex-start",
    alignItems: "center",
  },
});