commit d26f15c67309bb1291f6f11ff93fc93f60066f3d · gmstn.systems/shard

+44
src/lib/sessions.ts
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       import type { WebSocket } from "ws";

     

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       export type Session = Map<string, WebSocket>;

     

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       export const sessions: Session = new Map<string, WebSocket>();

     

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       export const generateSessionId = () => {

     

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           return crypto.randomUUID();

     

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       };

     

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       export const assignSessionTo = (socket: WebSocket) => {

     

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           try {

     

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               const sessionId = generateSessionId();

     

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               sessions.set(sessionId, socket);

     

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               return { ok: true };

     

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           } catch (err: unknown) {

     

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               return { ok: false, err };

     

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           }

     

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       };

     

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       export const dropSession = (sessionId: string) => {

     

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           try {

     

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               if (!sessions.has(sessionId))

     

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                   return {

     

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                       ok: false,

     

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                       err: new Error(

     

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                           `Could not find a session socket for id ${sessionId} `,

     

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                       ),

     

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                   };

     

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               const session = sessions.get(sessionId);

     

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               if (!session)

     

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                   return {

     

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                       ok: false,

     

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                       err: new Error(

     

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                           "`sessionId` key exists, but could not get the session socket for some reason?",

     

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                       ),

     

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                   };

     

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               session.close();

     

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               sessions.delete(sessionId);

     

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               return { ok: true };

     

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           } catch (err: unknown) {

     

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               return { ok: false, err };

     

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           }

     

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       };