'use strict';

import React, {Component} from 'react';

import {
  StyleSheet,
  Text,
  TextStyle,
  TouchableOpacity,
  View,
} from 'react-native';

import Video, {ResizeMode} from 'react-native-video';

class VideoPlayer extends Component {
  constructor(props: any) {
    super(props);
    this.onLoad = this.onLoad.bind(this);
    this.onProgress = this.onProgress.bind(this);
  }

  state = {
    rate: 1,
    volume: 1,
    muted: false,
    resizeMode: ResizeMode.CONTAIN,
    duration: 0.0,
    currentTime: 0.0,
    paused: false,
  };

  onLoad(data: any) {
    this.setState({duration: data.duration});
  }

  onProgress(data: any) {
    this.setState({currentTime: data.currentTime});
  }

  getCurrentTimePercentage() {
    if (this.state.currentTime > 0 && this.state.duration !== 0) {
      return this.state.currentTime / this.state.duration;
    } else {
      return 0;
    }
  }

  renderRateControl(rate: number) {
    const isSelected = this.state.rate === rate;
    const style: TextStyle = StyleSheet.flatten([
      styles.controlOption,
      {fontWeight: isSelected ? 'bold' : 'normal'},
    ]);

    return (
      <TouchableOpacity
        onPress={() => {
          this.setState({rate: rate});
        }}>
        <Text style={style}>{rate}x</Text>
      </TouchableOpacity>
    );
  }

  renderResizeModeControl(resizeMode: string) {
    const isSelected = this.state.resizeMode === resizeMode;
    const style: TextStyle = StyleSheet.flatten([
      styles.controlOption,
      {fontWeight: isSelected ? 'bold' : 'normal'},
    ]);

    return (
      <TouchableOpacity
        onPress={() => {
          this.setState({resizeMode: resizeMode});
        }}>
        <Text style={style}>{resizeMode}</Text>
      </TouchableOpacity>
    );
  }

  renderVolumeControl(volume: number) {
    const isSelected = this.state.volume === volume;
    const style: TextStyle = StyleSheet.flatten([
      styles.controlOption,
      {fontWeight: isSelected ? 'bold' : 'normal'},
    ]);

    return (
      <TouchableOpacity
        onPress={() => {
          this.setState({volume: volume});
        }}>
        <Text style={style}>{volume * 100}%</Text>
      </TouchableOpacity>
    );
  }

  render() {
    const flexCompleted = this.getCurrentTimePercentage() * 100;
    const flexRemaining = (1 - this.getCurrentTimePercentage()) * 100;

    return (
      <View style={styles.container}>
        <TouchableOpacity
          style={styles.fullScreen}
          onPress={() => {
            this.setState({paused: !this.state.paused});
          }}>
          <Video
            source={require('./assets/videos/broadchurch.mp4')}
            style={styles.fullScreen}
            rate={this.state.rate}
            paused={this.state.paused}
            volume={this.state.volume}
            muted={this.state.muted}
            resizeMode={this.state.resizeMode}
            onLoad={this.onLoad}
            onProgress={this.onProgress}
            onEnd={() => {
              console.log('Done!');
            }}
            repeat={true}
          />
        </TouchableOpacity>

        <View style={styles.controls}>
          <View style={styles.generalControls}>
            <View style={styles.rateControl}>
              {this.renderRateControl(0.25)}
              {this.renderRateControl(0.5)}
              {this.renderRateControl(1.0)}
              {this.renderRateControl(1.5)}
              {this.renderRateControl(2.0)}
            </View>

            <View style={styles.volumeControl}>
              {this.renderVolumeControl(0.5)}
              {this.renderVolumeControl(1)}
              {this.renderVolumeControl(1.5)}
            </View>

            <View style={styles.resizeModeControl}>
              {this.renderResizeModeControl('cover')}
              {this.renderResizeModeControl('contain')}
              {this.renderResizeModeControl('stretch')}
            </View>
          </View>

          <View style={styles.trackingControls}>
            <View style={styles.progress}>
              <View
                style={[styles.innerProgressCompleted, {flex: flexCompleted}]}
              />
              <View
                style={[styles.innerProgressRemaining, {flex: flexRemaining}]}
              />
            </View>
          </View>
        </View>
      </View>
    );
  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    backgroundColor: 'black',
  },
  fullScreen: {
    position: 'absolute',
    top: 0,
    left: 0,
    bottom: 0,
    right: 0,
  },
  controls: {
    backgroundColor: 'transparent',
    borderRadius: 5,
    position: 'absolute',
    bottom: 20,
    left: 20,
    right: 20,
  },
  progress: {
    flex: 1,
    flexDirection: 'row',
    borderRadius: 3,
    overflow: 'hidden',
  },
  innerProgressCompleted: {
    height: 20,
    backgroundColor: '#cccccc',
  },
  innerProgressRemaining: {
    height: 20,
    backgroundColor: '#2C2C2C',
  },
  generalControls: {
    flex: 1,
    flexDirection: 'row',
    borderRadius: 4,
    overflow: 'hidden',
    paddingBottom: 10,
  },
  rateControl: {
    flex: 1,
    flexDirection: 'row',
    justifyContent: 'center',
  },
  volumeControl: {
    flex: 1,
    flexDirection: 'row',
    justifyContent: 'center',
  },
  resizeModeControl: {
    flex: 1,
    flexDirection: 'row',
    alignItems: 'center',
    justifyContent: 'center',
  },
  controlOption: {
    alignSelf: 'center',
    fontSize: 11,
    color: 'white',
    paddingLeft: 2,
    paddingRight: 2,
    lineHeight: 12,
  },
  trackingControls: {
    flex: 1,
    flexDirection: 'row',
    alignItems: 'center',
    justifyContent: 'center',
  },
});
export default VideoPlayer;
