64 lines
1.9 KiB
TypeScript
64 lines
1.9 KiB
TypeScript
import { derived, writable } from "svelte/store";
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interface ErrorMessage {
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id: string | undefined;
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closable: boolean; // Whether it can be closed by a user action or not
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message: string | number | boolean | undefined;
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}
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/**
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* A store that contains a list of error messages to be displayed.
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*/
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function createErrorStore() {
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const { subscribe, set, update } = writable<ErrorMessage[]>([]);
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return {
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subscribe,
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addErrorMessage: (
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e: string | Error,
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options?: {
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closable?: boolean;
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id?: string;
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}
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): void => {
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update((messages: ErrorMessage[]) => {
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let message: string;
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if (e instanceof Error) {
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message = e.message;
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} else {
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message = e;
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}
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if (!messages.find((errorMessage) => errorMessage.message === message)) {
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messages.push({
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message,
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closable: options?.closable ?? true,
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id: options?.id,
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});
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}
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return messages;
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});
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},
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clearMessageById: (id: string): void => {
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update((messages: ErrorMessage[]) => {
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messages = messages.filter((message) => message.id !== id);
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return messages;
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});
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},
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clearClosableMessages: (): void => {
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update((messages: ErrorMessage[]) => {
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messages = messages.filter((message) => message.closable);
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return messages;
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});
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},
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};
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}
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export const errorStore = createErrorStore();
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export const hasClosableMessagesInErrorStore = derived(errorStore, ($errorStore) => {
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const closableMessage = $errorStore.find((errorMessage) => errorMessage.closable);
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return !!closableMessage;
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});
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