import React, { Component } from "react";
import { render } from "react-dom";
import {
  Container,
  Header,
  Icon,
  Grid,
  Segment,
  List,
  Input,
  Message,
  Dropdown
} from "semantic-ui-react";
import "fomantic-ui-css/semantic.min.css";
import { w3cwebsocket as W3CWebSocket } from "websocket";
import Moment from "react-moment";
import "moment/locale/es";
import "./App.css";
import StreamInfo from "./StreamInfo";

const client = new W3CWebSocket("wss://radio.bienvenidoainternet.org/daemon/");
const chatColors = [
  "grey",
  "red",
  "pink",
  "orange",
  "yellow",
  "green",
  "teal",
  "blue",
  "purple",
  "black"
];
class App extends Component {
  constructor(props) {
    super(props);
    this.state = {
      ready: false,
      response: {},
      history: [],
      chat: [],
      chatMessage: "",
      infoUpdate: {},
      currentSong: "",
      streamsAvailable: [],
      multipleSources: false,
      selectedStream: 0,
      chatUserCount: 0,
      isChatOnline: false
    };
    this.handleOnChange = this.handleOnChange.bind(this);
    this.sendMessage = this.sendMessage.bind(this);
    this.streamCount = 0;
  }

  checkStream(result) {
    const prevCount = this.streamCount;
    if (result.source !== undefined) {
      if (Array.isArray(result)) {
        this.streamCount = result.length;
      } else {
        this.streamCount = 1;
      }
    } else {
      this.streamCount = 0;
    }
    return prevCount === this.streamCount;
  }

  addMessage(message, color, own = false, sender = "") {
    var ts = new Date();
    this.setState(
      prevState => ({
        chat: [
          ...prevState.chat,
          { content: message, color: color, own, timestamp: ts, author: sender }
        ],
        chatMessage: ""
      }),
      () => {
        let chatContainer = document.getElementById("chatContainer");
        if (chatContainer != null) {
          chatContainer.scrollTop = chatContainer.scrollHeight;
        }
      }
    );
  }

  log(object) {
    if (process.env.NODE_ENV === "development") {
      console.log(object);
    }
  }

  refreshPlayer() {
    let audio = document.getElementById("player");
    if (audio !== null) {
      audio.pause();
      audio.load();
      audio.play();
    }
  }

  addToHistory(song) {
    this.setState(prevState => ({
      history: [...prevState.history, song]
    }));
    let historyContainer = document.getElementById("historyContainer");
    if (historyContainer != null) {
      historyContainer.scrollTop = historyContainer.scrollHeight;
    }
  }

  sendMessage() {
    const { chatMessage } = this.state;
    client.send("MSG:1:" + chatMessage);
    this.addMessage(chatMessage, "black", true);
    this.setState({ chatMessage: "" });
  }

  componentWillMount() {
    client.onopen = () => {
      //console.info("[Chat] Connected to BaiTV Chat!");
      this.setState({ isChatOnline: true });
    };
    client.onmessage = message => {
      //console.info("[Chat] Message: " + message.data);
      this.processChatMessage(message.data);
    };
    client.onerror = () => {
      this.setState({ isChatOnline: false });
      this.addMessage("Ha ocurrido un error conectándose al chat.", "red");
      //console.error("[Chat] Ha ocurrido un error");
    };
  }

  translateColon(msg) {
    return msg ? msg.replace(/%3A/g, ":") : "";
  }

  processChatMessage(line) {
    console.log("<< " + line);
    const args = line.split(":");
    switch (args[0]) {
      case "MSG":
        this.addMessage(this.translateColon(args[2]), chatColors[args[1]]);
        break;
      case "FMSG":
        this.addMessage(
          this.translateColon(args[3]),
          chatColors[args[2]],
          false,
          args[1]
        );
        break;
      case "WELCOME":
        this.addMessage("Conectado al chat, " + args[1], "green");
        break;
      case "COUNT":
        this.setState({ chatUserCount: args[1] });
        break;
      case "FLOOD":
        this.addMessage(
          "Error: Estas enviando mensajes demasido rápido!",
          "red"
        );
        break;
      default:
        console.error("[Chat] Unsupported command " + args[0]);
        break;
    }
  }

  handleOnChange(e, data) {
    this.setState({ chatMessage: data.value });
  }

  compareSongs() {
    const {
      currentSong,
      multipleSources,
      selectedStream,
      response
    } = this.state;
    const currentStream = multipleSources
      ? response.source[selectedStream]
      : response.source;

    if (`${currentStream.artist} - ${currentStream.title}` !== currentSong) {
      this.addToHistory(currentSong);
      this.setState({
        currentSong: `${currentStream.artist} - ${currentStream.title}`
      });
    }
  }

  updateInfo() {
    const {
      currentSong,
      multipleSources,
      selectedStream,
      response
    } = this.state;
    const currentStream = multipleSources
      ? response.source[selectedStream]
      : response.source;
    if (currentSong === "") {
      this.setState({
        currentSong: `${currentStream.artist} - ${currentStream.title}`
      });
    }

    fetch("https://bienvenidoainternet.org:8443/status-json.xsl")
      .then(response => response.json())
      .then(result => {
        this.log(result);
        this.checkStream(result);
        const source = result.icestats.source;
        if (source !== undefined) {
          let multipleStreams = Array.isArray(source);
          if (!multipleStreams && Array.isArray(this.state.response.source)) {
            this.setState(
              {
                response: result.icestats,
                streamsAvailable: [],
                multipleSources: multipleStreams,
                selectedStream: 0
              },
              () => this.compareSongs()
            );
            this.refreshPlayer();
          } else {
            let streams = [];
            if (Array.isArray(source)) {
              source.map((stream, index) =>
                streams.push({
                  key: index,
                  value: index,
                  text: `[${stream.listeners}] ${stream.server_name} - ${stream.server_description}`
                })
              );
            }
            this.setState(
              {
                response: result.icestats,
                streamsAvailable: streams,
                multipleSources: multipleStreams
              },
              () => this.compareSongs()
            );
          }
        } else {
          // No hay streams disponibles
          this.setState(
            {
              response: result.icestats,
              multipleSources: true,
              streamsAvailable: {},
              selectedStream: 0
            },
            () => this.compareSongs()
          );
        }
      });
  }

  componentDidMount() {
    fetch("https://bienvenidoainternet.org:8443/status-json.xsl")
      .then(response => response.json())
      .then(result =>
        this.setState(
          {
            response: result.icestats,
            infoUpdate: setInterval(() => this.updateInfo(), 10000)
          },
          () => {
            const { source } = this.state.response;
            if (source !== undefined && Array.isArray(source)) {
              let streams = [];
              source.map((stream, index) =>
                streams.push({
                  key: index,
                  value: index,
                  text: `[${stream.listeners}] ${stream.server_name} - ${stream.server_description}`
                })
              );
              console.log(streams);
              this.setState({
                multipleSources: true,
                streamsAvailable: streams,
                ready: true
              });
            } else if (source !== undefined) {
              this.setState({
                multipleSources: false,
                selectedStream: 0,
                ready: true
              });
            }
          }
        )
      );
  }

  render() {
    const {
      ready,
      response,
      history,
      chat,
      chatMessage,
      streamsAvailable,
      multipleSources,
      selectedStream,
      chatUserCount,
      isChatOnline
    } = this.state;
    const isOnline = response.source !== undefined;

    if (!ready) {
      return "Loading";
    }

    const currentStream = multipleSources
      ? response.source[selectedStream]
      : response.source;

    const currentStreamURL = currentStream.listenurl.replace(
      "http://bienvenidoainternet.org:8000",
      "https://bienvenidoainternet.org:8443"
    );

    return (
      <Container style={{ paddingTop: "50px" }}>
        <Segment style={{ padding: "2em" }}>
          <Grid stackable>
            <Grid.Row columns={2}>
              <Grid.Column>
                <Header as="h2">
                  <Icon name="broadcast tower" />
                  <Header.Content>
                    BaiRadio
                    <Header.Subheader>
                      {ready ? response.server_id : "Sin información"}
                    </Header.Subheader>
                  </Header.Content>
                </Header>
              </Grid.Column>

              <Grid.Column floated="right">
                <audio
                  xmlns="http://www.w3.org/1999/xhtml"
                  controls="controls"
                  preload="none"
                  autoPlay
                  id="player"
                >
                  <source src={currentStreamURL} type="application/ogg" />
                </audio>
              </Grid.Column>
            </Grid.Row>

            <Grid.Row divided columns={2}>
              <Grid.Column width={6}>
                {isOnline ? (
                  <>
                    {multipleSources && (
                      <>
                        <label className="dropdownLabel">
                          Transmisiones disponibles:
                        </label>
                        <Dropdown
                          defaultValue={0}
                          fluid
                          selection
                          options={streamsAvailable}
                          onChange={(e, d) =>
                            this.setState({ selectedStream: d.value }, () => {
                              let audio = document.getElementById("player");
                              if (audio !== null) {
                                audio.pause();
                                audio.load();
                                audio.play();
                              }
                            })
                          }
                        />
                      </>
                    )}

                    <Header as="h3">Información de la transmisión</Header>
                    <StreamInfo stream={currentStream} />
                  </>
                ) : (
                  <Message negative>
                    <Message.Header>Oops</Message.Header>
                    Actualmente no hay nadie transmitiendo en Bai Radio
                  </Message>
                )}

                <Header as="h3">Historial de canciones</Header>
                <div id="historyContainer">
                  <List>
                    {history.map((song, i) => (
                      <List.Item key={i}>
                        <List.Icon name="music" />
                        <List.Content>{song}</List.Content>
                      </List.Item>
                    ))}
                  </List>
                </div>
              </Grid.Column>
              <Grid.Column width={10}>
                <Header as="h3">
                  Chat
                  <Header.Subheader>{`Usuarios en el chat: ${chatUserCount}`}</Header.Subheader>
                </Header>
                <div id="chatContainer">
                  <List>
                    {chat.map((message, i) => (
                      <List.Item key={i}>
                        [<Moment format="HH:mm:ss" date={message.timestamp} />]{" "}
                        <span className={`ui text ${message.color}`}>
                          {message.content}
                        </span>
                      </List.Item>
                    ))}
                  </List>
                </div>
                <Input
                  fluid
                  size="mini"
                  action={{
                    content: "Enviar",
                    onClick: () => {
                      this.sendMessage();
                    },
                    disabled: !isChatOnline
                  }}
                  placeholder=""
                  value={chatMessage}
                  onChange={this.handleOnChange}
                  style={{ marginTop: "0.75em" }}
                  maxLength={128}
                  onKeyUp={e => {
                    let char = e.which || e.keyCode;
                    if (char === 13) {
                      this.sendMessage();
                    }
                  }}
                  disabled={!isChatOnline}
                />
              </Grid.Column>
            </Grid.Row>
          </Grid>
        </Segment>
        <Container textAlign="center">
          <span className="ui text grey">
            Bienvenido a Internet 2010 - 2020
          </span>
        </Container>
      </Container>
    );
  }
}

export default App;