/**
 * @fileoverview Rule to enforce `default` clauses in `switch` statements to be last
 * @author Milos Djermanovic
 */

'use strict';

//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------

/** @type {import('../types').Rule.RuleModule} */
module.exports = {
  meta: {
    type: 'suggestion',

    docs: {
      description:
        'Enforce `default` clauses in `switch` statements to be last',
      recommended: false,
      url: 'https://eslint.org/docs/latest/rules/default-case-last',
    },

    schema: [],

    messages: {
      notLast: 'Default clause should be the last clause.',
    },
  },

  create(context) {
    return {
      SwitchStatement(node) {
        const cases = node.cases,
          indexOfDefault = cases.findIndex((c) => c.test === null);

        if (indexOfDefault !== -1 && indexOfDefault !== cases.length - 1) {
          const defaultClause = cases[indexOfDefault];

          context.report({
            node: defaultClause,
            messageId: 'notLast',
          });
        }
      },
    };
  },
};