// https://eslint.org/docs/user-guide/configuring

module.exports = {
  root: true,
  parserOptions: {
    parser: 'babel-eslint'
  },
  env: {
    browser: true,
  },
  extends: [
    // https://github.com/vuejs/eslint-plugin-vue#priority-a-essential-error-prevention
    // consider switching to `plugin:vue/strongly-recommended` or `plugin:vue/recommended` for stricter rules.
    'plugin:vue/essential', 
    'airbnb-base',

  ],
  // required to lint *.vue files
  plugins: [
    'vue'
  ],
  // add your custom rules here
  rules: {
    // allow async-await
    'generator-star-spacing': 'off',
    // allow debugger during development
    'no-debugger': process.env.NODE_ENV === 'production' ? 'error' : 'off',
    'vue/html-closing-bracket-newline': ['error', {
      singleline: 'never',
      multiline: 'always',
    }],
    'vue/html-closing-bracket-spacing': ['error', {
      startTag: 'never',
      endTag: 'never',
      selfClosingTag: 'always',
    }],
    'import/extensions': ['error', 'always', {
      js: 'never',
      json: 'never',
      vue: 'never',
    }],
    'no-param-reassign': ['error', {
      props: true,
      ignorePropertyModificationsFor: [
        'state',
      ],
    }],
    'no-plusplus': 'off',
  }
}