import DeviceInfo from 'react-native-device-info';

import React, {
  AppRegistry,
  Component,
  StyleSheet,
  Text,
  View,
  StatusBarIOS,
  PixelRatio
} from 'react-native';
import CountryPicker, {getAllCountries} from 'react-native-country-picker-modal';

const NORTH_AMERICA = ['CA', 'MX', 'US'];

class Example extends Component {
  constructor(props){
    StatusBarIOS.setHidden(true);
    super(props);
    let userLocaleCountryCode = DeviceInfo.getDeviceCountry();
    const userCountryData = getAllCountries()
      .filter((country) => NORTH_AMERICA.includes(country.cca2))
      .filter((country) => country.cca2 === userLocaleCountryCode).pop();
    let callingCode = null;
    let cca2 = userLocaleCountryCode;
    if (!cca2 || !userCountryData) {
      cca2 = 'US';
      callingCode = '1';
    } else {
      callingCode = userCountryData.callingCode;
    }
    this.state = {
      cca2,
      callingCode
    };
  }
  render() {
    return (
      <View style={styles.container}>
        <Text style={styles.welcome}>
          Welcome to Country Picker !
        </Text>
        <CountryPicker
          countryList={NORTH_AMERICA}
          onChange={(value)=> {
            this.setState({cca2: value.cca2, callingCode: value.callingCode});
          }}
          cca2={this.state.cca2}
          translation='eng'
        />
        <Text style={styles.instructions}>
          press on the flag
        </Text>
        {this.state.country &&
          <Text style={styles.data}>
            {JSON.stringify(this.state.country, null, 2)}
          </Text>
        }
      </View>
    );
  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center'
  },
  welcome: {
    fontSize: 20,
    textAlign: 'center',
    margin: 10,
  },
  instructions: {
    fontSize: 12,
    textAlign: 'center',
    color: '#888',
    marginBottom: 5,
  },
  data: {
    padding: 15,
    marginTop: 10,
    backgroundColor: '#ddd',
    borderColor: '#888',
    borderWidth: 1 / PixelRatio.get(),
    color: '#777'
  }
});

AppRegistry.registerComponent('example', () => Example);