Fix stupid timezone issues

package-lock.json

@@ -17,6 +17,7 @@
         "@types/uuid": "^9.0.1",
         "axios": "^1.3.5",
         "date-fns": "^2.29.3",
+        "date-fns-tz": "^2.0.0",
         "discord-api-types": "^0.37.38",
         "discord.js": "^14.9.0",
         "dotenv": "^16.0.3",
@@ -2626,6 +2627,14 @@
         "url": "https://opencollective.com/date-fns"
       }
     },
+    "node_modules/date-fns-tz": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/date-fns-tz/-/date-fns-tz-2.0.0.tgz",
+      "integrity": "sha512-OAtcLdB9vxSXTWHdT8b398ARImVwQMyjfYGkKD2zaGpHseG2UPHbHjXELReErZFxWdSLph3c2zOaaTyHfOhERQ==",
+      "peerDependencies": {
+        "date-fns": ">=2.0.0"
+      }
+    },
     "node_modules/debug": {
       "version": "4.3.4",
       "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.4.tgz",
@@ -8905,6 +8914,12 @@
       "resolved": "https://registry.npmjs.org/date-fns/-/date-fns-2.29.3.tgz",
       "integrity": "sha512-dDCnyH2WnnKusqvZZ6+jA1O51Ibt8ZMRNkDZdyAyK4YfbDwa/cEmuztzG5pk6hqlp9aSBPYcjOlktquahGwGeA=="
     },
+    "date-fns-tz": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/date-fns-tz/-/date-fns-tz-2.0.0.tgz",
+      "integrity": "sha512-OAtcLdB9vxSXTWHdT8b398ARImVwQMyjfYGkKD2zaGpHseG2UPHbHjXELReErZFxWdSLph3c2zOaaTyHfOhERQ==",
+      "requires": {}
+    },
     "debug": {
       "version": "4.3.4",
       "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.4.tgz",

package.json

@@ -13,6 +13,7 @@
     "@types/uuid": "^9.0.1",
     "axios": "^1.3.5",
     "date-fns": "^2.29.3",
+    "date-fns-tz": "^2.0.0",
     "discord-api-types": "^0.37.38",
     "discord.js": "^14.9.0",
     "dotenv": "^16.0.3",

server/helper/dateHelper.ts

@@ -1,6 +1,8 @@
-import { format } from "date-fns";
+import { format, isToday, toDate } from "date-fns";
+import {utcToZonedTime} from "date-fns-tz"
 import { GuildScheduledEvent } from "discord.js";
 import { logger } from "../logger";
+import de from "date-fns/locale/de";
 
 export function createDateStringFromEvent(event: GuildScheduledEvent, requestId: string, guildId?: string): string {
     if(!event.scheduledStartAt) {
@@ -8,9 +10,14 @@ export function createDateStringFromEvent(event: GuildScheduledEvent, requestId:
         return `"habe keinen Startzeitpunkt ermitteln können"`
     }
 
-    const date = format(event.scheduledStartAt, "dd.MM")
+    const timeZone = 'Europe/Berlin'
-    const time = format(event.scheduledStartAt, "HH:mm")
+    const zonedDateTime = utcToZonedTime(event.scheduledStartAt, timeZone)
+    const time = format(zonedDateTime, "HH:mm", {locale: de})
     
+    if(isToday(zonedDateTime)) {
+        return `heute um ${time}`
+    }
 
+    const date = format(zonedDateTime, "eeee dd.MM", {locale: de})
     return `am ${date} um ${time}`
 }