// eslint-disable-next-line @typescript-eslint/no-unused-vars
import _Vue from "vue";
import { VueConstructor } from "vue/types";
import ToastContainer from "../components/VtToastContainer.vue";
import {
  ToastContent,
  ToastOptions,
  ToastID,
  PluginOptions,
  ToastOptionsAndRequiredContent,
} from "../types";
import { TYPE, EVENTS } from "./constants";
import { getId, isUndefined } from "./utils";

const ToastInterface = (
  Vue: VueConstructor,
  globalOptions: PluginOptions = {},
  mountContainer = true
) => {
  const events = (globalOptions.eventBus = globalOptions.eventBus || new Vue());
  if (mountContainer) {
    const containerComponent = new (Vue.extend(ToastContainer))({
      el: document.createElement("div"),
      propsData: globalOptions,
    });
    const onMounted = globalOptions.onMounted;
    if (!isUndefined(onMounted)) {
      onMounted(containerComponent);
    }
  }
  /**
   * Display a toast
   */
  const toast = (content: ToastContent, options?: ToastOptions): ToastID => {
    const props: ToastOptionsAndRequiredContent & {
      id: ToastID;
    } = Object.assign({}, { id: getId(), type: TYPE.DEFAULT }, options, {
      content,
    });
    events.$emit(EVENTS.ADD, props);
    return props.id;
  };
  /**
   * Clear all toasts
   */
  toast.clear = () => events.$emit(EVENTS.CLEAR);
  /**
   * Update Plugin Defaults
   */
  toast.updateDefaults = (update: PluginOptions) => {
    events.$emit(EVENTS.UPDATE_DEFAULTS, update);
  };
  /**
   * Dismiss toast specified by an id
   */
  toast.dismiss = (id: ToastID) => {
    events.$emit(EVENTS.DISMISS, id);
  };
  /**
   * Update Toast
   */
  function updateToast(
    id: ToastID,
    { content, options }: { content?: ToastContent; options?: ToastOptions },
    create?: false
  ): void;
  function updateToast(
    id: ToastID,
    { content, options }: { content: ToastContent; options?: ToastOptions },
    create?: true
  ): void;
  function updateToast(
    id: ToastID,
    { content, options }: { content?: ToastContent; options?: ToastOptions },
    create = false
  ): void {
    events.$emit(EVENTS.UPDATE, {
      id,
      options: Object.assign({}, options, { content }),
      create,
    });
  }
  toast.update = updateToast;
  /**
   * Display a success toast
   */
  toast.success = (
    content: ToastContent,
    options?: ToastOptions & { type?: TYPE.SUCCESS }
  ) => toast(content, Object.assign({}, options, { type: TYPE.SUCCESS }));

  /**
   * Display an info toast
   */
  toast.info = (
    content: ToastContent,
    options?: ToastOptions & { type?: TYPE.INFO }
  ) => toast(content, Object.assign({}, options, { type: TYPE.INFO }));

  /**
   * Display an error toast
   */
  toast.error = (
    content: ToastContent,
    options?: ToastOptions & { type?: TYPE.ERROR }
  ) => toast(content, Object.assign({}, options, { type: TYPE.ERROR }));

  /**
   * Display a warning toast
   */
  toast.warning = (
    content: ToastContent,
    options?: ToastOptions & { type?: TYPE.WARNING }
  ) => toast(content, Object.assign({}, options, { type: TYPE.WARNING }));

  return toast;
};

export default ToastInterface;