import React, { useEffect, useState } from "react";
import {
  View,
  StyleSheet,
  Image,
  TouchableWithoutFeedback,
  Alert,
  Text,
  Modal,
  TouchableOpacity,
} from "react-native";
import { MaterialCommunityIcons } from "@expo/vector-icons";
import * as ImagePicker from "expo-image-picker";
import * as Permissions from "expo-permissions";
import colors from "../config/colors";

function ImageInput({ imageUri, onChangeImage }) {
  useEffect(() => {
    requestPermission();
    //requestPermissionCamera();
  }, []);

  /* const requestPermissionCamera = async () => {
    const { granted } = await Permissions.askAsync(Permissions.CAMERA);
    if(granted) {
      launchCamera();
    }
    else if (!granted) alert("Você precisa habilitar permissão para acessar a câmera.");
  };
  
  const launchCamera = async () => {
    setModalVisible(false);
    try {
      const result = await ImagePicker.launchCameraAsync({
        allowsEditing: false,
      });
      if (!result.cancelled) onChangeImage(result.uri)
    } catch (error) {
      console.log("Erro ao ler imagem", error);
    }
  };*/

  const requestPermission = async () => {
    const { granted } = await ImagePicker.requestCameraRollPermissionsAsync();
    if (!granted)
      alert("Você precisa habilitar permissão para acessar a biblioteca.");
  };

  const handlePress = () => {
    if (!imageUri) launchImageLibrary();
    else
      Alert.alert("Deletar", "Deseja deletar esta imagem?", [
        { text: "Sim", onPress: () => onChangeImage(null) },
        { text: "Não" },
      ]);
  };

  const launchImageLibrary = async () => {
    try {
      const result = await ImagePicker.launchImageLibraryAsync({
        mediaTypes: ImagePicker.MediaTypeOptions.Images,
        quality: 0.5,
      });
      if (!result.cancelled) onChangeImage(result.uri);
    } catch (error) {
      console.log("Erro ao ler imagem", error);
    }
  };

  return (
    <View>
      <TouchableWithoutFeedback onPress={handlePress}>
        <View style={styles.container}>
          {!imageUri && (
            <MaterialCommunityIcons
              color={colors.medium}
              name="camera-plus"
              size={40}
            />
          )}
          {imageUri && (
            <Image source={{ uri: imageUri }} style={styles.image} />
          )}
        </View>
      </TouchableWithoutFeedback>
    </View>
  );
}

const styles = StyleSheet.create({
  container: {
    alignItems: "center",
    backgroundColor: colors.light,
    borderRadius: 15,
    height: 100,
    justifyContent: "center",
    marginVertical: 10,
    overflow: "hidden",
    width: 100,
  },
  image: {
    height: "100%",
    width: "100%",
  },
  centeredView: {
    flex: 1,
    justifyContent: "center",
    alignItems: "center",
    marginTop: 22,
  },
  modalView: {
    margin: 20,
    backgroundColor: colors.lightGray,
    borderRadius: 20,
    padding: 30,
    alignItems: "center",
    shadowColor: "grey",
    shadowOffset: {
      width: 10,
      height: 2,
    },
    shadowOpacity: 0.25,
    shadowRadius: 3.84,
    elevation: 25,
    width: 300,
  },
  modalText: {
    marginTop: 15,
    textAlign: "center",
    fontSize: 16,
    color: colors.primary,
  },
  modalLabel: {
    borderBottomWidth: 2,
    borderBottomColor: colors.primary,
    width: 300,
    color: colors.primary,
    fontSize: 18,
    textAlign: "center",
    fontWeight: "bold",
    height: 35,
  },
});

export default ImageInput;