chore: add more composables (#138)

src/runtime/composables/useToast.ts

@@ -0,0 +1,41 @@
+import type { ToastNotification } from '../types'
+import { useState } from '#imports'
+
+export function useToast () {
+  const notifications = useState<ToastNotification[]>('notifications', () => [])
+
+  function addNotification (notification: Partial<ToastNotification>) {
+    const body = {
+      id: new Date().getTime().toString(),
+      ...notification
+    }
+
+    const index = notifications.value.findIndex((n: ToastNotification) => n.id === body.id)
+    if (index === -1) {
+      notifications.value.push(body as ToastNotification)
+    }
+
+    return body
+  }
+
+  function removeNotification (id: string) {
+    notifications.value = notifications.value.filter((n: ToastNotification) => n.id !== id)
+  }
+
+  const success = (notification: Partial<ToastNotification> = {}) => addNotification({ type: 'success', ...notification })
+
+  const info = (notification: Partial<ToastNotification> = {}) => addNotification({ type: 'info', ...notification })
+
+  const warning = (notification: Partial<ToastNotification> = {}) => addNotification({ type: 'warning', ...notification })
+
+  const error = (notification: Partial<ToastNotification>) => addNotification({ type: 'error', title: 'An error occurred!', ...notification })
+
+  return {
+    addNotification,
+    removeNotification,
+    success,
+    info,
+    warning,
+    error
+  }
+}