DVB Container

src/components/DVB.tsx

@@ -0,0 +1,73 @@
+import * as React from "react";
+import type { Departure } from "../lib/interfaces";
+import { minuteDiff } from "../lib/utils";
+import * as styles from "../styles/containers/DVB.module.css";
+
+const DVB_REFRESH_INTERVAL = 30 * 1000
+
+const DVB = ({ stopId }: { stopId: number }) => {
+    const [departuresHead, setDeparturesHead] = React.useState("")
+    const [departuresTable, setDeparturesTable] = React.useState([])
+
+    React.useEffect(() => {
+        //pullDepartures();
+        // TODO
+        //const dvbInterval = setInterval(pullDepartures, DVB_REFRESH_INTERVAL);
+
+        //return () => clearInterval(dvbInterval);
+    }, [])
+
+    const processDepatures = (departures: Departure[]) => {
+        const depTable = [];
+
+        departures.forEach((departure, index) => {
+            const realTime = departure.RealTime ? new Date(parseInt(departure.RealTime.replace(/\/Date\(/g, "").replace(/\-.*$/g, ""))) : undefined;
+            const scheduledTime = new Date(parseInt(departure.ScheduledTime.replace(/\/Date\(/g, "").replace(/\-.*$/g, "")));
+            const timeToDisplay = realTime || scheduledTime;
+            const timeDelay = realTime ? minuteDiff(realTime, scheduledTime) : 0;
+
+            depTable.push(
+                <tr className={styles.departure} key={index}>
+                    <td>{departure.LineName}</td>
+                    <td>{departure.Direction}</td>
+                    <td>{timeToDisplay.getHours()}:{timeToDisplay.getMinutes().toString().padStart(2, "0")}</td>
+                    <td>{minuteDiff(timeToDisplay, new Date())}</td>
+                    <td className={timeDelay < 0 ? styles.beforeTime : styles.delay}>{timeDelay > 0 ? "+" : ""}{timeDelay !== 0 ? timeDelay : false}</td>
+                </tr>
+            );
+        });
+
+        setDeparturesTable(depTable);
+    }
+
+    const pullDepartures = async () => {
+        const time = new Date();
+        time.setMinutes(time.getMinutes() + 5)
+        const response = await fetch("https://webapi.vvo-online.de/dm", {
+            method: "POST",
+            body: JSON.stringify({
+                stopid: stopId,
+                limit: 5,
+                time: time.toUTCString()
+            }),
+            headers: {
+                "Content-Type": "application/json"
+            }
+        });
+        const data = await response.json();
+        if (data.Name !== departuresHead) setDeparturesHead(data.Name);
+        console.log(data)
+        processDepatures(data.Departures);
+    }
+
+    return (<div className={`container ${styles.container}`}>
+        <table>
+            
+            <tbody>
+                {departuresTable}
+            </tbody>
+        </table>
+    </div>)
+}
+
+export default DVB;

src/components/News.tsx

@@ -1,6 +1,7 @@
 import * as React from "react";
 import { XMLParser } from "fast-xml-parser";
 import * as styles from "../styles/containers/News.module.css"
+import type { News as NewsType, PostillonNews } from "../lib/interfaces";
 
 const NEWS_REFRESH_INTERVAL = 15 * 60 * 1000;
 
@@ -14,7 +15,7 @@ const News = () => {
         return () => clearInterval(newsInterval);
     }, [])
 
-    const processNews = (news: {title: string; updated: string;}[], postillon: {title: string; pubDate: string; categories: string[]}[]) => {
+    const processNews = (news: NewsType[], postillon: PostillonNews[]) => {
         const newsTable = []
 
         for (const n of news) {

src/lib/interfaces.ts

@@ -31,3 +31,23 @@ export interface Event {
     start: { dateTime: string; date?: string; };
     summary: string;
 }
+
+export interface News {
+    title: string; 
+    updated: string;
+}
+
+export interface PostillonNews {
+    title: string; 
+    pubDate: string; 
+    categories: string[];
+}
+
+export interface Departure {
+    Direction: string;
+    LineName: string;
+    RealTime?: string;
+    ScheduledTime: string;
+    State?: "Delayed" | "InTime" | "Canceled";
+    CancelReasons?: string[];
+}

src/lib/utils.ts

@@ -28,3 +28,7 @@ export function monthToString(month: number) {
         default: return;
     }
 }
+
+export function minuteDiff(later: Date, before: Date) {
+    return Math.floor((later.getTime() - before.getTime()) / 60000);
+}

src/pages/index.tsx

@@ -1,6 +1,7 @@
 import * as React from "react"
 import secrets from "../../secrets.json"
 import Calendar from "../components/Calendar";
+import DVB from "../components/DVB";
 import News from "../components/News";
 import WeatherAndTimeContainer from "../components/WeatherAndTime"
 import WeatherRadar from "../components/WeatherRadar";
@@ -36,6 +37,7 @@ const IndexPage = () => {
     <Calendar secrets={secrets.calendar} />
     <WeatherRadar />
     <News />
+    <DVB stopId={secrets.dvb.stopId} />
   </main>)
 }
 

src/styles/containers/DVB.module.css

@@ -0,0 +1,50 @@
+.container {
+    grid-area: dvb;
+    display: flex;
+    flex-direction: column;
+}
+
+.container table {
+    height: 100%;
+}
+
+.departureHeader {
+    font-weight: bold;
+    font-size: 110%;
+}
+
+.departure {
+    font-size: 150%;
+    font-weight: bold;
+    margin: auto 0;
+}
+
+.departure td {
+    padding: 2px 10px;
+}
+
+.departure td:nth-child(1) {
+    padding-left: 20px !important;
+}
+
+.departure td:nth-child(2) {
+    width: 100%;
+}
+
+.departure td:nth-child(3), .departure td:nth-child(4) {
+    text-align: right;
+}
+
+.delay, .beforeTime {
+    padding-left: 0 !important;
+    font-size: 70%;
+    font-weight: normal;
+}
+
+.delay {
+    color: #ff0000;
+}
+
+.beforeTime {
+    color: #0000ff;
+}