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| @@ -0,0 +1,5 @@ | ||
| --- | ||
| "nostrudel": minor | ||
| --- | ||
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| Add decrypt all button to DMs |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,5 @@ | ||
| --- | ||
| "nostrudel": minor | ||
| --- | ||
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| Cache decrypted events |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,142 @@ | ||
| import { PropsWithChildren, createContext, useCallback, useContext, useMemo, useRef } from "react"; | ||
| import { nanoid } from "nanoid"; | ||
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| import Subject from "../classes/subject"; | ||
| import { useSigningContext } from "./signing-provider"; | ||
| import useSubject from "../hooks/use-subject"; | ||
| import createDefer, { Deferred } from "../classes/deferred"; | ||
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| class DecryptionContainer { | ||
| id = nanoid(); | ||
| pubkey: string; | ||
| data: string; | ||
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| plaintext = new Subject<string>(); | ||
| error = new Subject<Error>(); | ||
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| constructor(pubkey: string, data: string) { | ||
| this.pubkey = pubkey; | ||
| this.data = data; | ||
| } | ||
| } | ||
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| type DecryptionContextType = { | ||
| getOrCreateContainer: (pubkey: string, data: string) => DecryptionContainer; | ||
| startQueue: () => void; | ||
| clearQueue: () => void; | ||
| addToQueue: (container: DecryptionContainer) => Promise<string>; | ||
| getQueue: () => DecryptionContainer[]; | ||
| }; | ||
| const DecryptionContext = createContext<DecryptionContextType>({ | ||
| getOrCreateContainer: () => { | ||
| throw new Error("No DecryptionProvider"); | ||
| }, | ||
| startQueue: () => {}, | ||
| clearQueue: () => {}, | ||
| addToQueue: () => Promise.reject(new Error("No DecryptionProvider")), | ||
| getQueue: () => [], | ||
| }); | ||
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| export function useDecryptionContext(){ | ||
| return useContext(DecryptionContext) | ||
| } | ||
| export function useDecryptionContainer(pubkey: string, data: string) { | ||
| const { getOrCreateContainer, addToQueue, startQueue } = useContext(DecryptionContext); | ||
| const container = getOrCreateContainer(pubkey, data); | ||
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| const plaintext = useSubject(container.plaintext); | ||
| const error = useSubject(container.error); | ||
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| const requestDecrypt = useCallback(() => { | ||
| const p = addToQueue(container); | ||
| startQueue(); | ||
| return p; | ||
| }, [addToQueue, startQueue]); | ||
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| return { container, error, plaintext, requestDecrypt }; | ||
| } | ||
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| export default function DecryptionProvider({ children }: PropsWithChildren) { | ||
| const { requestDecrypt } = useSigningContext(); | ||
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| const containers = useRef<DecryptionContainer[]>([]); | ||
| const queue = useRef<DecryptionContainer[]>([]); | ||
| const promises = useRef<Map<DecryptionContainer, Deferred<string>>>(new Map()); | ||
| const running = useRef<boolean>(false); | ||
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| const getQueue = useCallback(() => queue.current, []); | ||
| const clearQueue = useCallback(() => { | ||
| queue.current = []; | ||
| promises.current.clear(); | ||
| }, []); | ||
| const addToQueue = useCallback((container: DecryptionContainer) => { | ||
| queue.current.unshift(container); | ||
| let p = promises.current.get(container); | ||
| if (!p) { | ||
| p = createDefer<string>(); | ||
| promises.current.set(container, p); | ||
| } | ||
| return p; | ||
| }, []); | ||
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| const getOrCreateContainer = useCallback((pubkey: string, data: string) => { | ||
| let container = containers.current.find((c) => c.pubkey === pubkey && c.data === data); | ||
| if (!container) { | ||
| container = new DecryptionContainer(pubkey, data); | ||
| containers.current.push(container); | ||
| } | ||
| return container; | ||
| }, []); | ||
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| const startQueue = useCallback(() => { | ||
| if (running.current === true) return; | ||
| running.current = false; | ||
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| async function decryptNext() { | ||
| if (running.current === true) return; | ||
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| const container = queue.current.pop(); | ||
| if (!container) { | ||
| running.current = false; | ||
| promises.current.clear(); | ||
| return; | ||
| } | ||
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| const promise = promises.current.get(container)!; | ||
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| try { | ||
| const plaintext = await requestDecrypt(container.data, container.pubkey); | ||
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| // set plaintext | ||
| container.plaintext.next(plaintext); | ||
| promise.resolve(plaintext); | ||
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| // remove promise | ||
| promises.current.delete(container); | ||
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| setTimeout(() => decryptNext(), 100); | ||
| } catch (e) { | ||
| if (e instanceof Error) { | ||
| // set error | ||
| container.error.next(e); | ||
| promise.reject(e); | ||
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| // clear queue | ||
| running.current = false; | ||
| queue.current = []; | ||
| promises.current.clear(); | ||
| } | ||
| } | ||
| } | ||
|
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| // start cycle | ||
| decryptNext(); | ||
| }, [requestDecrypt]); | ||
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| const context = useMemo( | ||
| () => ({ getQueue, addToQueue, clearQueue, getOrCreateContainer, startQueue }), | ||
| [getQueue, addToQueue, clearQueue, getOrCreateContainer, startQueue], | ||
| ); | ||
|
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| return <DecryptionContext.Provider value={context}>{children}</DecryptionContext.Provider>; | ||
| } |
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