/*
 * 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 { EuiFlexItem, EuiFlexGroup } from '@elastic/eui';

import {
  EuiText,
  EuiAvatar,
  EuiIcon,
  EuiFlexGrid,
  EuiListGroup,
  EuiListGroupItem,
} from '@elastic/eui';
import { withEmbeddableSubscription } from '../../../../src/plugins/embeddable/public';
import {
  MultiTaskTodoEmbeddable,
  MultiTaskTodoOutput,
  MultiTaskTodoInput,
} from './multi_task_todo_embeddable';

interface Props {
  embeddable: MultiTaskTodoEmbeddable;
  input: MultiTaskTodoInput;
  output: MultiTaskTodoOutput;
}

function wrapSearchTerms(task: string, search?: string) {
  if (!search) return task;
  const parts = task.split(new RegExp(`(${search})`, 'g'));
  return parts.map((part, i) =>
    part === search ? (
      <span key={i} style={{ backgroundColor: 'yellow' }}>
        {part}
      </span>
    ) : (
      part
    )
  );
}

function renderTasks(tasks: MultiTaskTodoInput['tasks'], search?: string) {
  return tasks.map((task) => (
    <EuiListGroupItem
      key={task}
      data-test-subj="multiTaskTodoTask"
      label={wrapSearchTerms(task, search)}
    />
  ));
}

export function MultiTaskTodoEmbeddableComponentInner({
  input: { title, icon, search, tasks },
}: Props) {
  return (
    <EuiFlexGroup gutterSize="none">
      <EuiFlexItem grow={false}>
        {icon ? <EuiIcon type={icon} size="l" /> : <EuiAvatar name={title} size="l" />}
      </EuiFlexItem>
      <EuiFlexItem>
        <EuiFlexGrid columns={1} gutterSize="none">
          <EuiFlexItem>
            <EuiText data-test-subj="multiTaskTodoTitle">
              <h3>{wrapSearchTerms(title, search)}</h3>
            </EuiText>
          </EuiFlexItem>
          <EuiFlexItem>
            <EuiListGroup bordered={true}>{renderTasks(tasks, search)}</EuiListGroup>
          </EuiFlexItem>
        </EuiFlexGrid>
      </EuiFlexItem>
    </EuiFlexGroup>
  );
}

export const MultiTaskTodoEmbeddableComponent = withEmbeddableSubscription<
  MultiTaskTodoInput,
  MultiTaskTodoOutput,
  MultiTaskTodoEmbeddable
>(MultiTaskTodoEmbeddableComponentInner);