import * as MediaLibrary from 'expo-media-library';
import React, { useEffect, useState } from 'react';

import {
  ActivityIndicator,
  Alert,
  Modal,
  StyleSheet,
  Text,
  View,
} from 'react-native';
import { ProgressBar } from 'react-native-paper';
import Toast from 'react-native-toast-message';
import { connect } from 'react-redux';
import { createStructuredSelector } from 'reselect';
import { logImEXEvent } from '../../firebase/firebase.analytics';
import {
  selectCurrentCameraJobId,
  selectDeleteAfterUpload,
} from '../../redux/app/app.selectors';
import * as Sentry from '@sentry/react-native';

import { formatBytes } from '../../util/document-upload.utility';
import { handleLocalUpload } from '../../util/local-document-upload.utility';

const mapStateToProps = createStructuredSelector({
  selectedCameraJobId: selectCurrentCameraJobId,
  deleteAfterUpload: selectDeleteAfterUpload,
});

export default connect(mapStateToProps, null)(UploadProgress);

export function UploadProgress({
  selectedCameraJobId,
  deleteAfterUpload,
  uploads,
  setUploads,
  forceRerender,
}) {
  const [progress, setProgress] = useState({
    loading: false,
    uploadInProgress: false,
    speed: 0,
  });

  useEffect(() => {
    //Set the state of uploads to do.
    if (uploads) {
      beginUploads(uploads);
      setUploads(null);
    }
  }, [uploads]);

  async function handleOnSuccess({ duration, data }) {
    //If it's not in production, show a toast with the time.
    Toast.show({
      type: 'success',
      text1: ` Upload completed in ${duration}.`,
      //
      //   text2: duration,
    });
    if (deleteAfterUpload) {
      try {
        await MediaLibrary.deleteAssetsAsync(data);

        const album = await MediaLibrary.createAlbumAsync(
          'ImEX Mobile Deleted',
          data.pop(),
          false
        );
        //Move the rest.
        if (data.length > 0) {
          const moveResult = await MediaLibrary.addAssetsToAlbumAsync(
            data,
            album,
            false
          );
        }
        const deleteResult = await MediaLibrary.deleteAlbumsAsync(album);
      } catch (error) {
        console.log('Unable to delete picture.', error);
        Sentry.Native.captureException(error);
      }
    }

    logImEXEvent('imexmobile_successful_upload');
    forceRerender();
    setProgress({ ...progress, speed: 0, percent: 1, uploadInProgress: false });
  }

  function handleOnProgress({ percent, loaded }) {
    setProgress((progress) => ({
      ...progress,
      speed: loaded - progress.loaded,
      loaded: loaded,
      percent,
    }));
  }

  function handleOnError({ assetid, error }) {
    logImEXEvent('imexmobile_upload_documents_error');
    Toast.show({
      type: 'error',
      text1: 'Unable to upload documents.',
      text2: error,
      autoHide: false,
    });
    setProgress({
      speed: 0,
      percent: 1,
      uploadInProgress: false,
    });
  }

  const beginUploads = async (data) => {
    //Validate to make sure the totals for the file sizes do not exceed the total on the job.
    setProgress({
      percent: 0,
      loaded: 0,
      uploadInProgress: true,
      start: new Date(),
      average: 0,
    });

    await handleLocalUpload({
      files: data,
      onError: ({ assetid, error }) => handleOnError({ assetid, error }),
      onProgress: ({ percent, loaded }) =>
        handleOnProgress({ percent, loaded }),
      onSuccess: ({ duration }) => handleOnSuccess({ duration, data }),
      context: {
        jobid:
          selectedCameraJobId !== 'temp' ? selectedCameraJobId : 'temporary',
      },
    });
  };

  return (
    <Modal
      visible={progress.uploadInProgress}
      animationType='slide'
      transparent={true}
      onRequestClose={() => {
        Alert.alert('Cancel?', 'Do you want to abort the upload?', [
          {
            text: 'Yes',
            onPress: () => {
              setUploads(null);
              setProgress(null);
            },
          },
          { text: 'No' },
        ]);
      }}
    >
      <View style={styles.modalContainer}>
        <View style={styles.modal}>
          <ActivityIndicator style={{ alignSelf: 'center', marginTop: 16 }} />
          <ProgressBar
            progress={progress.percent}
            style={{ alignSelf: 'center', marginTop: 16 }}
            color={progress.percent === 1 ? 'green' : 'blue'}
          />
          <Text style={{ alignSelf: 'center', marginTop: 16 }}>{`${formatBytes(
            progress.speed
          )}/sec`}</Text>
          <Text
            style={{ alignSelf: 'center', marginTop: 16 }}
          >{`Avg. ${formatBytes(
            progress.loaded / ((new Date() - progress.start) / 1000)
          )}/sec`}</Text>
          <Text
            style={{ alignSelf: 'center', marginTop: 16 }}
          >{`Total Uploaded ${formatBytes(progress.loaded)}`}</Text>
          <Text style={{ alignSelf: 'center', marginTop: 16 }}>{`Duration ${(
            (new Date() - progress.start) /
            1000
          ).toFixed(1)} sec`}</Text>
        </View>
      </View>
    </Modal>
  );
}
const styles = StyleSheet.create({
  modalContainer: {
    display: 'flex',
    flex: 1,
    justifyContent: 'center',
  },
  modal: {
    // flex: 1,
    display: 'flex',
    marginLeft: 20,
    marginRight: 20,
    backgroundColor: 'white',
    borderRadius: 20,
    padding: 18,
    shadowColor: '#000',
    shadowOffset: {
      width: 0,
      height: 2,
    },
    shadowOpacity: 0.25,
    shadowRadius: 4,
    elevation: 5,
  },
});