/*
 * SPDX-License-Identifier: Apache-2.0
 *
 * The OpenSearch Contributors require contributions made to
 * this file be licensed under the Apache-2.0 license or a
 * compatible open source license.
 *
 * Any modifications Copyright OpenSearch Contributors. See
 * GitHub history for details.
 */

/*
 * Licensed to Elasticsearch B.V. under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch B.V. licenses this file to you under
 * the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

import React from 'react';
import { render, unmountComponentAtNode } from 'react-dom';

import { I18nStart } from '../../i18n';
import { IUiSettingsClient } from '../../ui_settings';
import { GlobalToastList } from './global_toast_list';
import { ToastsApi, IToasts } from './toasts_api';
import { OverlayStart } from '../../overlays';

interface SetupDeps {
  uiSettings: IUiSettingsClient;
}

interface StartDeps {
  i18n: I18nStart;
  overlays: OverlayStart;
  targetDomElement: HTMLElement;
}

/**
 * {@link IToasts}
 * @public
 */
export type ToastsSetup = IToasts;

/**
 * {@link IToasts}
 * @public
 */
export type ToastsStart = IToasts;

export class ToastsService {
  private api?: ToastsApi;
  private targetDomElement?: HTMLElement;

  public setup({ uiSettings }: SetupDeps) {
    this.api = new ToastsApi({ uiSettings });
    return this.api!;
  }

  public start({ i18n, overlays, targetDomElement }: StartDeps) {
    this.api!.start({ overlays, i18n });
    this.targetDomElement = targetDomElement;

    render(
      <i18n.Context>
        <GlobalToastList
          dismissToast={(toastId: string) => this.api!.remove(toastId)}
          toasts$={this.api!.get$()}
        />
      </i18n.Context>,
      targetDomElement
    );

    return this.api!;
  }

  public stop() {
    if (this.targetDomElement) {
      unmountComponentAtNode(this.targetDomElement);
      this.targetDomElement.textContent = '';
    }
  }
}