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/**
* Toast Notification System
* Displays temporary notification messages
*/
import { CONFIG } from '../core/config.js';
const TOAST_DEFAULTS = {
MAX_VISIBLE: 3,
DEFAULT_DURATION: 3500,
ERROR_DURATION: 6000,
};
// CONFIG.TOAST is optional in some builds/pages; keep Toast resilient.
const TOAST_CONFIG = {
...TOAST_DEFAULTS,
...(CONFIG?.TOAST || {}),
};
export class Toast {
static container = null;
static toasts = [];
static maxToasts = TOAST_CONFIG.MAX_VISIBLE;
/**
* Initialize toast container
*/
static init() {
if (this.container) return;
this.container = document.getElementById('toast-container');
if (!this.container) {
this.container = document.createElement('div');
this.container.id = 'toast-container';
this.container.className = 'toast-container';
document.body.appendChild(this.container);
}
}
/**
* Show a toast notification
*/
static show(message, type = 'info', options = {}) {
this.init();
const toast = {
id: Date.now() + Math.random(),
message,
type,
duration:
options.duration ??
(type === 'error' ? TOAST_CONFIG.ERROR_DURATION : TOAST_CONFIG.DEFAULT_DURATION),
dismissible: options.dismissible !== false,
action: options.action || null,
};
// Remove oldest toast if at max
if (this.toasts.length >= this.maxToasts) {
const oldest = this.toasts.shift();
this.dismiss(oldest.id);
}
this.toasts.push(toast);
this.render(toast);
// Auto-dismiss
if (toast.duration > 0) {
setTimeout(() => this.dismiss(toast.id), toast.duration);
}
return toast.id;
}
/**
* Render toast element
*/
static render(toast) {
const el = document.createElement('div');
el.className = `toast toast-${toast.type}`;
el.setAttribute('data-toast-id', toast.id);
el.setAttribute('role', 'alert');
el.setAttribute('aria-live', 'polite');
const icon = this.getIcon(toast.type);
el.innerHTML = `
<div class="toast-icon">${icon}</div>
<div class="toast-content">
<div class="toast-message">${this.escapeHtml(toast.message)}</div>
${toast.action ? `<button class="toast-action">${toast.action.label}</button>` : ''}
</div>
${toast.dismissible ? '<button class="toast-close" aria-label="Close">×</button>' : ''}
${toast.duration > 0 ? `<div class="toast-progress" style="animation-duration: ${toast.duration}ms"></div>` : ''}
`;
// Close button handler
if (toast.dismissible) {
const closeBtn = el.querySelector('.toast-close');
closeBtn.addEventListener('click', () => this.dismiss(toast.id));
}
// Action button handler
if (toast.action) {
const actionBtn = el.querySelector('.toast-action');
actionBtn.addEventListener('click', () => {
toast.action.callback();
this.dismiss(toast.id);
});
}
this.container.appendChild(el);
// Trigger animation
setTimeout(() => el.classList.add('toast-show'), 10);
}
/**
* Dismiss a toast
*/
static dismiss(toastId) {
const el = this.container.querySelector(`[data-toast-id="${toastId}"]`);
if (!el) return;
el.classList.remove('toast-show');
el.classList.add('toast-hide');
setTimeout(() => {
if (el.parentNode) {
el.parentNode.removeChild(el);
}
}, 300);
// Remove from array
this.toasts = this.toasts.filter(t => t.id !== toastId);
}
/**
* Dismiss all toasts
*/
static dismissAll() {
this.toasts.forEach(toast => this.dismiss(toast.id));
}
/**
* Convenience methods
*/
static success(message, options = {}) {
return this.show(message, 'success', options);
}
static error(message, options = {}) {
return this.show(message, 'error', options);
}
static warning(message, options = {}) {
return this.show(message, 'warning', options);
}
static info(message, options = {}) {
return this.show(message, 'info', options);
}
/**
* Get icon for toast type
*/
static getIcon(type) {
const icons = {
success: '✅',
error: '❌',
warning: '⚠️',
info: 'ℹ️',
};
return icons[type] || 'ℹ️';
}
/**
* Escape HTML
*/
static escapeHtml(text) {
const div = document.createElement('div');
div.textContent = text;
return div.innerHTML;
}
}
export default Toast;
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