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import { TalerError, TalerErrorCode, TranslatedString } from "@gnu-taler/taler-util";
import { useEffect, useState } from "preact/hooks";
import { memoryMap, useTranslationContext } from "../index.browser.js";
export type NotificationMessage = ErrorNotification | InfoNotification;
export interface ErrorNotification {
type: "error";
title: TranslatedString;
description?: TranslatedString;
debug?: any;
}
export interface InfoNotification {
type: "info";
title: TranslatedString;
}
const storage = memoryMap<Map<string, NotificationMessage>>();
const NOTIFICATION_KEY = "notification";
export function notify(notif: NotificationMessage): void {
const currentState: Map<string, NotificationMessage> =
storage.get(NOTIFICATION_KEY) ?? new Map();
const newState = currentState.set(hash(notif), notif);
storage.set(NOTIFICATION_KEY, newState);
}
export function notifyError(
title: TranslatedString,
description: TranslatedString | undefined,
debug?: any,
) {
notify({
type: "error" as const,
title,
description,
debug,
});
}
export function notifyException(
title: TranslatedString,
ex: Error,
) {
notify({
type: "error" as const,
title,
description: ex.message as TranslatedString,
debug: ex.stack,
});
}
export function notifyInfo(title: TranslatedString) {
notify({
type: "info" as const,
title,
});
}
export type Notification = {
message: NotificationMessage;
remove: () => void;
};
export function useNotifications(): Notification[] {
const [value, setter] = useState<Map<string, NotificationMessage>>(new Map());
useEffect(() => {
return storage.onUpdate(NOTIFICATION_KEY, () => {
const mem = storage.get(NOTIFICATION_KEY) ?? new Map();
setter(structuredClone(mem));
});
});
return Array.from(value.values()).map((message, idx) => {
return {
message,
remove: () => {
const mem = storage.get(NOTIFICATION_KEY) ?? new Map();
const newState = new Map(mem);
newState.delete(hash(message));
storage.set(NOTIFICATION_KEY, newState);
},
};
});
}
function hashCode(str: string): string {
if (str.length === 0) return "0";
let hash = 0;
let chr;
for (let i = 0; i < str.length; i++) {
chr = str.charCodeAt(i);
hash = (hash << 5) - hash + chr;
hash |= 0; // Convert to 32bit integer
}
return hash.toString(16);
}
function hash(msg: NotificationMessage): string {
let str = (msg.type + ":" + msg.title) as string;
if (msg.type === "error") {
if (msg.description) {
str += ":" + msg.description;
}
if (msg.debug) {
str += ":" + msg.debug;
}
}
return hashCode(str);
}
export function useLocalNotification(): [Notification | undefined, (n: NotificationMessage) => void, (cb: () => Promise<void>) => Promise<void>] {
const {i18n} = useTranslationContext();
const [value, setter] = useState<NotificationMessage>();
const notif = !value ? undefined : {
message: value,
remove: () => {
setter(undefined);
},
}
async function errorHandling(cb: () => Promise<void>) {
try {
return await cb()
} catch (error: unknown) {
if (error instanceof TalerError) {
notify(buildRequestErrorMessage(i18n, error))
} else {
notifyError(
i18n.str`Operation failed, please report`,
(error instanceof Error
? error.message
: JSON.stringify(error)) as TranslatedString
)
}
}
}
return [notif, setter, errorHandling]
}
type Translator = ReturnType<typeof useTranslationContext>["i18n"]
function buildRequestErrorMessage( i18n: Translator, cause: TalerError): ErrorNotification {
let result: ErrorNotification;
switch (cause.errorDetail.code) {
case TalerErrorCode.WALLET_HTTP_REQUEST_GENERIC_TIMEOUT: {
result = {
type: "error",
title: i18n.str`Request timeout`,
description: cause.message as TranslatedString,
debug: JSON.stringify(cause.errorDetail, undefined, 2),
};
break;
}
case TalerErrorCode.WALLET_HTTP_REQUEST_THROTTLED: {
result = {
type: "error",
title: i18n.str`Request throttled`,
description: cause.message as TranslatedString,
debug: JSON.stringify(cause.errorDetail, undefined, 2),
};
break;
}
case TalerErrorCode.WALLET_RECEIVED_MALFORMED_RESPONSE: {
result = {
type: "error",
title: i18n.str`Malformed response`,
description: cause.message as TranslatedString,
debug: JSON.stringify(cause.errorDetail, undefined, 2),
};
break;
}
case TalerErrorCode.WALLET_NETWORK_ERROR: {
result = {
type: "error",
title: i18n.str`Network error`,
description: cause.message as TranslatedString,
debug: JSON.stringify(cause.errorDetail, undefined, 2),
};
break;
}
case TalerErrorCode.WALLET_UNEXPECTED_REQUEST_ERROR: {
result = {
type: "error",
title: i18n.str`Unexpected request error`,
description: cause.message as TranslatedString,
debug: JSON.stringify(cause.errorDetail, undefined, 2),
};
break;
}
default: {
result = {
type: "error",
title: i18n.str`Unexpected error`,
description: cause.message as TranslatedString,
debug: JSON.stringify(cause.errorDetail, undefined, 2),
};
break;
}
}
return result;
}
|
