/**
 * Sample React Native App
 * https://github.com/facebook/react-native
 */
'use strict';

var React = require('react-native');
var {
  AppRegistry,
  StyleSheet,
  Text,
  View,
  TouchableOpacity,
} = React;

var Video = require('react-native-video');

var VideoPlayer = React.createClass({
  getInitialState() {
    return {
      rate: 1,
      volume: 1,
      muted: false,
      resizeMode: 'contain', // cover, stretch
      duration: 0.0,
      currentTime: 0.0,
    }
  },

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

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

  getCurrentTimePercentage() {
    if (this.state.currentTime > 0) {
      return parseFloat(this.state.currentTime) / parseFloat(this.state.duration);
    } else {
      return 0;
    }
  },

  renderRateControl(rate) {
    var isSelected = (this.state.rate == rate);

    return (
      <TouchableOpacity onPress={() => { this.setState({rate: rate}) }}>
        <Text style={[styles.controlOption, {fontWeight: isSelected ? "bold" : "normal"}]}>
          {rate}x
        </Text>
      </TouchableOpacity>
    )
  },

  renderResizeModeControl(resizeMode) {
    var isSelected = (this.state.resizeMode == resizeMode);

    return (
      <TouchableOpacity onPress={() => { this.setState({resizeMode: resizeMode}) }}>
        <Text style={[styles.controlOption, {fontWeight: isSelected ? "bold" : "normal"}]}>
          {resizeMode}
        </Text>
      </TouchableOpacity>
    )
  },

  renderVolumeControl(volume) {
    var isSelected = (this.state.volume == volume);

    return (
      <TouchableOpacity onPress={() => { this.setState({volume: volume}) }}>
        <Text style={[styles.controlOption, {fontWeight: isSelected ? "bold" : "normal"}]}>
          {volume * 100}%
        </Text>
      </TouchableOpacity>
    )
  },

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

    return (
      <View style={styles.container}>
        <TouchableOpacity onPress={() => {this.setState({paused: !this.state.paused})}}>
          <Video source={{uri: "broadchurch"}}
                 style={styles.video}
                 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}
                 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>
    );
  }
});


var styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    backgroundColor: 'black',
  },
  video: {
    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,
  },
});

AppRegistry.registerComponent('VideoPlayer', () => VideoPlayer);