Calendar container

src/components/Calendar.tsx

@@ -0,0 +1,121 @@
+import * as React from "react"
+import { dowToString } from "../lib/utils";
+import type { Event, SecretsCalendar } from "../lib/interfaces";
+import * as styles from "../styles/containers/Calendar.module.css"
+
+const CALENDAR_REFRESH_INTERVAL = 15 * 60 * 1000;
+const CALENDAR_TOKEN_REFRESH_INTERVAL = 45 * 60 * 1000;
+
+function daysDifference(date1: Date, date2: Date) {
+    if (date1.getTime() > date2.getTime()) {
+        let tmp = date2;
+        date2 = date1;
+        date1 = tmp;
+    }
+    return Math.ceil((date2.getTime() - date1.getTime()) / 1000 / 60 / 60 / 24);
+}
+
+const Calendar = ({ secrets }: { secrets: SecretsCalendar }) => {
+    const [token, setToken] = React.useState("")
+    const [events, setEvents] = React.useState([])
+
+    React.useEffect(() => {
+        requestToken().then(pullCalendar)
+        const calendarInterval = setInterval(pullCalendar, CALENDAR_REFRESH_INTERVAL);
+        const calendarTokenInterval = setInterval(requestToken, CALENDAR_TOKEN_REFRESH_INTERVAL);
+
+        return () => {
+            clearInterval(calendarInterval);
+            clearInterval(calendarTokenInterval);
+        }
+    }, [])
+
+    const processEventData = (events: Event[]) => {
+        const eventTable = [];
+        let lastDate = "";
+        let i = 0;
+        for (const event of events) {
+            const startDate = new Date(event.start.date ? event.start.date : event.start.dateTime)
+            const startDateString = `${startDate.getFullYear()}${startDate.getMonth()}${startDate.getDate()}`
+            if (startDateString !== lastDate) {
+                lastDate = startDateString;
+                const dayDiff = daysDifference(new Date(), startDate);
+                let dayDiffString: string;
+                switch (dayDiff) {
+                    case 0: dayDiffString = "Heute"
+                        break;
+                    case 1: dayDiffString = "Morgen"
+                        break;
+                    default: dayDiffString = `${dayDiff} Tage`;
+                        break;
+                }
+                eventTable.push(
+                    <tr key={startDateString}><td colSpan={2} className={styles.calendarDateHeader}>
+                        {dowToString(startDate.getDay())}, {startDate.getDate()}. {startDate.getMonth() + 1}
+                        <span className={styles.calendarDateHeaderSub}>({dayDiffString})</span>
+                    </td></tr>
+                );
+            }
+
+            if (event.start.date) {
+                eventTable.push(
+                    <tr key={++i} className={styles.calendarEntry}><td colSpan={2}>{event.summary}</td></tr>
+                );
+            } else {
+                eventTable.push(
+                    <tr key={++i} className={styles.calendarEntry}>
+                        <td>{event.summary}</td>
+                        <td>{startDate.getHours()}:{startDate.getMinutes().toString().padStart(2, "0")}</td>
+                    </tr>
+                )
+            }
+        }
+        return eventTable;
+    }
+
+    const requestToken = async () => {
+        const response = await fetch("https://accounts.google.com/o/oauth2/token", {
+            method: "POST",
+            body: JSON.stringify({
+                grant_type: "refresh_token",
+                refresh_token: secrets.refreshToken,
+                client_id: secrets.clientId,
+                clientSecret: secrets.clientSecret
+            })
+        });
+        const token = await response.json();
+        setToken(token.access_token);
+        return token.access_token;
+    }
+
+    const pullCalendar = async (provToken: string) => {
+        const correctToken = provToken || token;
+        if (!correctToken || correctToken === "") return;
+
+        const timeMin = new Date();
+        timeMin.setHours(timeMin.getHours() - 1);
+        const params = new URLSearchParams({
+            orderBy: "startTime",
+            fields: "items(creator,start,summary)",
+            singleEvents: "true",
+            maxResults: "10",
+            timeMin: timeMin.toISOString(),
+            key: (secrets.apiKey as string)
+        });
+
+        const response = await fetch(`https://www.googleapis.com/calendar/v3/calendars/${secrets.calendarId}/events?${params.toString()}`, {
+            headers: { Authorization: `Bearer ${correctToken}` }
+        });
+        const events = await response.json();
+        setEvents(processEventData(events.items));
+    }
+
+    return <div className={`container ${styles.container}`}>
+        <table><tbody>
+            {events}
+        </tbody></table>
+    </div>
+
+}
+
+export default Calendar;

src/components/WeatherAndTime.tsx

@@ -1,46 +1,16 @@
 import * as React from "react"
-import type { WeatherInfo } from "../lib/interfaces";
+import { dowToString, monthToString } from "../lib/utils";
+import type { SecretsWeather, WeatherInfo } from "../lib/interfaces";
 import * as styles from "../styles/containers/WeatherAndTime.module.css";
 
 const WEATHER_REFRESH_INTERVAL = 15 * 60 * 1000;
 
-function dowToString(dow: number) {
-    switch (dow) {
-        case 0: return "Sonntag";
-        case 1: return "Montag";
-        case 2: return "Dienstag";
-        case 3: return "Mittwoch";
-        case 4: return "Donnerstag";
-        case 5: return "Freitag";
-        case 6: return "Samstag";
-        default: return;
-    }
-}
-
-function monthToString(month: number) {
-    switch (month) {
-        case 0: return "Januar";
-        case 1: return "Februar";
-        case 2: return "März";
-        case 3: return "April";
-        case 4: return "Mail";
-        case 5: return "Juni";
-        case 6: return "Juli";
-        case 7: return "August";
-        case 8: return "September";
-        case 9: return "Oktober";
-        case 10: return "November";
-        case 11: return "Dezember";
-        default: return;
-    }
-}
-
 function getWeatherIcon(icon: string) {
     const ImportedIcon = require(`../images/weather/${icon}.svg`);
     return <ImportedIcon />
 }
 
-const WeatherAndTimeContainer = ({ apiKey, coords }) => {
+const WeatherAndTime = ({ secrets }: { secrets: SecretsWeather }) => {
     const [date, setDate] = React.useState(new Date());
     const [weather, setWeather] = React.useState<WeatherInfo>({
         currently: {
@@ -77,7 +47,7 @@ const WeatherAndTimeContainer = ({ apiKey, coords }) => {
     }, [])
 
     const pullWeather = () => {
-        fetch(`https://api.pirateweather.net/forecast/${apiKey}/${coords}?exclude=minutely,hourly&lang=de&units=ca`)
+        fetch(`https://api.pirateweather.net/forecast/${secrets.apiKey}/${secrets.coords}?exclude=minutely,hourly&lang=de&units=ca`)
             .then(resp => resp.json())
             .then(setWeather);
     }
@@ -135,4 +105,4 @@ const WeatherAndTimeContainer = ({ apiKey, coords }) => {
     </div>)
 }
 
-export default WeatherAndTimeContainer;
+export default WeatherAndTime;

src/lib/interfaces.ts

@@ -1,3 +1,16 @@
+export interface SecretsWeather {
+    apiKey: string;
+    coords: string;
+}
+
+export interface SecretsCalendar {
+    apiKey: string;
+    calendarId: string;
+    clientId: string;
+    clientSecret: string;
+    refreshToken: string;
+}
+
 export interface WeatherInfo {
     currently: {
         icon: string;
@@ -13,3 +26,8 @@ export interface WeatherInfo {
         }[]
     }
 }
+
+export interface Event {
+    start: { dateTime: string; date?: string; };
+    summary: string;
+}

src/lib/utils.ts

@@ -0,0 +1,30 @@
+export function dowToString(dow: number) {
+    switch (dow) {
+        case 0: return "Sonntag";
+        case 1: return "Montag";
+        case 2: return "Dienstag";
+        case 3: return "Mittwoch";
+        case 4: return "Donnerstag";
+        case 5: return "Freitag";
+        case 6: return "Samstag";
+        default: return;
+    }
+}
+
+export function monthToString(month: number) {
+    switch (month) {
+        case 0: return "Januar";
+        case 1: return "Februar";
+        case 2: return "März";
+        case 3: return "April";
+        case 4: return "Mail";
+        case 5: return "Juni";
+        case 6: return "Juli";
+        case 7: return "August";
+        case 8: return "September";
+        case 9: return "Oktober";
+        case 10: return "November";
+        case 11: return "Dezember";
+        default: return;
+    }
+}

src/pages/index.tsx

@@ -1,5 +1,6 @@
 import * as React from "react"
 import secrets from "../../secrets.json"
+import Calendar from "../components/Calendar";
 import WeatherAndTimeContainer from "../components/WeatherAndTime"
 
 function importAll(r) {
@@ -29,7 +30,8 @@ const IndexPage = () => {
   }
 
   return (<main style={{ backgroundImage: `url(${images[currentBg].default})` }}>
-    <WeatherAndTimeContainer apiKey={secrets.weather.apiKey} coords={secrets.weather.coords}/>
+    <WeatherAndTimeContainer secrets={secrets.weather} />
+    <Calendar secrets={secrets.calendar} />
   </main>)
 }
 

src/styles/containers/Calendar.module.css

@@ -0,0 +1,27 @@
+.container {
+    grid-area: calendar;
+}
+.container table {
+    width: 100%;
+    border-collapse: collapse;
+}
+.calendarDateHeader {
+    font-weight: bold;
+    font-size: 2vh;
+    background: rgba(0, 0, 0, .1);
+}
+.calendarDateHeaderSub {
+    font-size: 1.5vh;
+    padding-top: 0.4vh;
+    float: right;
+}
+.container table td {
+    padding: 5px;
+}
+.container tr td:first-of-type {
+    width: 100%;
+}
+.container tr.calendarEntry {
+    border-top: 1px solid #000000;
+    font-size: 1.8vh;
+}