/*
 * SonarQube
 * Copyright (C) 2009-2024 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
module.exports = {
  meta: {
    messages: {
      convertClassToFunctionComponent:
        'A class component only containing a render() method should be converted to a function component',
    },
  },
  create(context) {
    return {
      ClassDeclaration(node) {
        const methods = node.body.body.filter(
          (n) =>
            n.type === 'MethodDefinition' ||
            (n.type === 'PropertyDefinition' &&
              n.value &&
              n.value.type === 'ArrowFunctionExpression')
        );
        if (methods.length === 1 && methods[0].key.name === 'render') {
          context.report({ node, messageId: 'convertClassToFunctionComponent' });
        }
      },
    };
  },
};