import * as React from 'react';
import { ICommand, TextState, TextApi } from './';
import { selectWord } from '../utils/markdownUtils';

export const italic: ICommand = {
  name: 'italic',
  keyCommand: 'italic',
  buttonProps: { 'aria-label': 'Add italic text' },
  icon: (
    <svg data-name="italic" width="12" height="12" role="img" viewBox="0 0 320 512">
      <path
        fill="currentColor"
        d="M204.758 416h-33.849l62.092-320h40.725a16 16 0 0 0 15.704-12.937l6.242-32C297.599 41.184 290.034 32 279.968 32H120.235a16 16 0 0 0-15.704 12.937l-6.242 32C96.362 86.816 103.927 96 113.993 96h33.846l-62.09 320H46.278a16 16 0 0 0-15.704 12.935l-6.245 32C22.402 470.815 29.967 480 40.034 480h158.479a16 16 0 0 0 15.704-12.935l6.245-32c1.927-9.88-5.638-19.065-15.704-19.065z"
      />
    </svg>
  ),
  execute: (state: TextState, api: TextApi) => {
    // Adjust the selection to encompass the whole word if the caret is inside one
    const newSelectionRange = selectWord({ text: state.text, selection: state.selection });
    const state1 = api.setSelectionRange(newSelectionRange);
    // Replaces the current selection with the italic mark up
    const state2 = api.replaceSelection(`*${state1.selectedText}*`);
    // Adjust the selection to not contain the *
    api.setSelectionRange({
      start: state2.selection.end - 1 - state1.selectedText.length,
      end: state2.selection.end - 1,
    });
  },
};