import {RouteProp} from '@react-navigation/native';
import {StackNavigationProp} from '@react-navigation/stack';
import React, {Fragment, useState} from 'react';
import {
  Alert,
  Image,
  Keyboard,
  KeyboardAvoidingView,
  Platform,
  StyleSheet,
  TouchableWithoutFeedback,
  View,
} from 'react-native';
import {Button} from 'react-native-elements';
import {useDispatch, useSelector} from 'react-redux';
import {SearchBackground, TaggBigInput} from '../../components';
import {CaptionScreenHeader} from '../../components/';
import TaggLoadingIndicator from '../../components/common/TaggLoadingIndicator';
import {TAGG_LIGHT_BLUE_2} from '../../constants';
import {ERROR_UPLOAD, SUCCESS_PIC_UPLOAD} from '../../constants/strings';
import {MainStackParams} from '../../routes';
import {postMoment} from '../../services';
import {
  loadUserMoments,
  updateProfileCompletionStage,
} from '../../store/actions';
import {RootState} from '../../store/rootReducer';
import {SCREEN_WIDTH, StatusBarHeight} from '../../utils';

/**
 * Upload Screen to allow users to upload posts to Tagg
 */
type CaptionScreenRouteProp = RouteProp<MainStackParams, 'CaptionScreen'>;
type CaptionScreenNavigationProp = StackNavigationProp<
  MainStackParams,
  'CaptionScreen'
>;
interface CaptionScreenProps {
  route: CaptionScreenRouteProp;
  navigation: CaptionScreenNavigationProp;
}

const CaptionScreen: React.FC<CaptionScreenProps> = ({route, navigation}) => {
  const {title, image, screenType} = route.params;
  const {
    user: {userId},
  } = useSelector((state: RootState) => state.user);
  const dispatch = useDispatch();
  const [caption, setCaption] = useState('');
  const [loading, setLoading] = useState(false);

  const handleCaptionUpdate = (newCaption: string) => {
    setCaption(newCaption);
  };

  const navigateToProfile = () => {
    //Since the logged In User is navigating to own profile, useXId is not required
    navigation.navigate('Profile', {
      screenType,
      userXId: undefined,
    });
  };

  const handleShare = async () => {
    setLoading(true);
    if (!image.filename) {
      return;
    }
    postMoment(image.filename, image.path, caption, title, userId).then(
      (data) => {
        setLoading(false);
        if (data) {
          dispatch(loadUserMoments(userId));
          dispatch(updateProfileCompletionStage(data));
          navigateToProfile();
          setTimeout(() => {
            Alert.alert(SUCCESS_PIC_UPLOAD);
          }, 500);
        } else {
          setTimeout(() => {
            Alert.alert(ERROR_UPLOAD);
          }, 500);
        }
      },
    );
  };

  return (
    <SearchBackground>
      {loading ? <TaggLoadingIndicator fullscreen /> : <Fragment />}
      <TouchableWithoutFeedback onPress={Keyboard.dismiss}>
        <KeyboardAvoidingView
          behavior={Platform.OS === 'ios' ? 'padding' : 'height'}
          style={styles.flex}>
          <View style={styles.contentContainer}>
            <View style={styles.buttonsContainer}>
              <Button
                title="Cancel"
                buttonStyle={styles.button}
                onPress={() => navigateToProfile()}
              />
              <Button
                title="Share"
                titleStyle={styles.shareButtonTitle}
                buttonStyle={styles.button}
                onPress={handleShare}
              />
            </View>
            <CaptionScreenHeader style={styles.header} {...{title: title}} />
            <Image
              style={styles.image}
              source={{uri: image.path}}
              resizeMode={'cover'}
            />
            <TaggBigInput
              style={styles.text}
              multiline
              placeholder="Write something....."
              placeholderTextColor="gray"
              onChangeText={handleCaptionUpdate}
            />
          </View>
        </KeyboardAvoidingView>
      </TouchableWithoutFeedback>
    </SearchBackground>
  );
};
const styles = StyleSheet.create({
  contentContainer: {
    paddingTop: StatusBarHeight,
    justifyContent: 'flex-end',
  },
  buttonsContainer: {
    flexDirection: 'row',
    justifyContent: 'space-between',
    marginLeft: '5%',
    marginRight: '5%',
  },
  button: {
    backgroundColor: 'transparent',
  },
  shareButtonTitle: {
    fontWeight: 'bold',
    color: TAGG_LIGHT_BLUE_2,
  },
  header: {
    marginVertical: 20,
  },
  image: {
    position: 'relative',
    width: SCREEN_WIDTH,
    aspectRatio: 1,
    marginBottom: '3%',
  },
  text: {
    position: 'relative',
    backgroundColor: 'white',
    width: '100%',
    paddingHorizontal: '2%',
    paddingVertical: '1%',
    height: 60,
  },
  flex: {
    flex: 1,
  },
});

export default CaptionScreen;