61 lines
2.2 KiB
JavaScript
Executable File
61 lines
2.2 KiB
JavaScript
Executable File
// [DEF:toasts_module:Module]
|
|
// @SEMANTICS: notification, toast, feedback, state
|
|
// @PURPOSE: Manages toast notifications using a Svelte writable store.
|
|
// @LAYER: UI-State
|
|
|
|
import { writable } from 'svelte/store';
|
|
|
|
// [DEF:toasts:Data]
|
|
// @PURPOSE: Writable store containing the list of active toasts.
|
|
export const toasts = writable([]);
|
|
// [/DEF:toasts:Data]
|
|
|
|
const TOAST_DEDUP_WINDOW_MS = 1200;
|
|
const recentToastByKey = new Map();
|
|
|
|
function buildToastKey(message, type) {
|
|
return `${String(type || 'info')}::${String(message || '')}`;
|
|
}
|
|
|
|
function shouldSkipDuplicateToast(message, type) {
|
|
const key = buildToastKey(message, type);
|
|
const now = Date.now();
|
|
const previousAt = recentToastByKey.get(key);
|
|
if (previousAt && now - previousAt < TOAST_DEDUP_WINDOW_MS) {
|
|
return true;
|
|
}
|
|
recentToastByKey.set(key, now);
|
|
return false;
|
|
}
|
|
|
|
// [DEF:addToast:Function]
|
|
// @PURPOSE: Adds a new toast message.
|
|
// @PRE: message string is provided.
|
|
// @POST: New toast is added to the store and scheduled for removal.
|
|
// @PARAM: message (string) - The message text.
|
|
// @PARAM: type (string) - The type of toast (info, success, error).
|
|
// @PARAM: duration (number) - Duration in ms before the toast is removed.
|
|
export function addToast(message, type = 'info', duration = 3000) {
|
|
if (shouldSkipDuplicateToast(message, type)) {
|
|
console.log(`[toasts.addToast][Action] Duplicate skipped context={{'type': '${type}', 'message': '${message}'}}`);
|
|
return;
|
|
}
|
|
const id = Math.random().toString(36).substr(2, 9);
|
|
console.log(`[toasts.addToast][Action] Adding toast context={{'id': '${id}', 'type': '${type}', 'message': '${message}'}}`);
|
|
toasts.update(all => [...all, { id, message, type }]);
|
|
setTimeout(() => removeToast(id), duration);
|
|
}
|
|
// [/DEF:addToast:Function]
|
|
|
|
// [DEF:removeToast:Function]
|
|
// @PURPOSE: Removes a toast message by ID.
|
|
// @PRE: id is provided.
|
|
// @POST: Toast is removed from the store.
|
|
// @PARAM: id (string) - The ID of the toast to remove.
|
|
function removeToast(id) {
|
|
console.log(`[toasts.removeToast][Action] Removing toast context={{'id': '${id}'}}`);
|
|
toasts.update(all => all.filter(t => t.id !== id));
|
|
}
|
|
// [/DEF:removeToast:Function]
|
|
// [/DEF:toasts_module:Module]
|