import { ref } from 'vue'

export type ToastType = 'success' | 'error' | 'warning' | 'info'

export interface Toast {
  id: number
  message: string
  type: ToastType
  duration: number
}

let nextId = 0
export const toasts = ref<Toast[]>([])

function addToast(message: string, type: ToastType, duration = 4000) {
  const id = nextId++
  toasts.value.push({ id, message, type, duration })
  setTimeout(() => {
    toasts.value = toasts.value.filter(t => t.id !== id)
  }, duration)
}

export function useToast() {
  return {
    success: (message: string) => addToast(message, 'success'),
    error: (message: string) => addToast(message, 'error', 6000),
    warning: (message: string) => addToast(message, 'warning', 5000),
    info: (message: string) => addToast(message, 'info'),
    toasts,
  }
}