1 files changed, 164 insertions, 0 deletions
diff --git a/src/Chat.js b/src/Chat.js
new file mode 100644
index 0000000..175797a
--- /dev/null
+++ b/src/Chat.js
@@ -0,0 +1,164 @@
+import React, { Component } from "react";
+import { w3cwebsocket as W3CWebSocket } from "websocket";
+import { Header, List, Input } from "semantic-ui-react";
+import Moment from "react-moment";
+import "moment/locale/es";
+
+class Chat extends Component {
+  constructor(props) {
+    super(props);
+    this.state = {
+      chat: [],
+      chatMessage: "",
+      chatUserCount: 0,
+      isChatOnline: false
+    };
+    this.client = {};
+    this.chatColors = [
+      "grey",
+      "red",
+      "pink",
+      "orange",
+      "yellow",
+      "green",
+      "teal",
+      "blue",
+      "purple",
+      "black"
+    ];
+    this.handleOnChange = this.handleOnChange.bind(this);
+    this.sendMessage = this.sendMessage.bind(this);
+  }
+
+  handleOnChange(e, data) {
+    this.setState({ chatMessage: data.value });
+  }
+
+  translateColon(msg) {
+    return msg ? msg.replace(/%3A/g, ":") : "";
+  }
+
+  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;
+        }
+      }
+    );
+  }
+
+  componentWillMount() {
+    this.client = new W3CWebSocket(
+      "wss://radio.bienvenidoainternet.org/daemon/"
+    );
+    this.client.onopen = () => {
+      this.setState({ isChatOnline: true });
+    };
+    this.client.onmessage = message => {
+      this.processChatMessage(message.data);
+    };
+    this.client.onerror = () => {
+      this.setState({ isChatOnline: false });
+      this.addMessage("Ha ocurrido un error conectándose al chat.", "red");
+    };
+  }
+
+  sendMessage() {
+    const { chatMessage } = this.state;
+    this.client.send("MSG:1:" + chatMessage);
+    this.addMessage(chatMessage, "black", true);
+    this.setState({ chatMessage: "" });
+  }
+
+  processChatMessage(line) {
+    console.log("<< " + line);
+    const args = line.split(":");
+    switch (args[0]) {
+      case "MSG":
+        this.addMessage(this.translateColon(args[2]), this.chatColors[args[1]]);
+        break;
+      case "FMSG":
+        this.addMessage(
+          this.translateColon(args[3]),
+          this.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;
+    }
+  }
+
+  render() {
+    const { chat, chatMessage, chatUserCount, isChatOnline } = this.state;
+    return (
+      <>
+        <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}
+        />
+      </>
+    );
+  }
+}
+
+export default Chat;