module.exports = {
  root: true,
  env: {
    node: true,
  },
  extends: [
    'plugin:vue/essential',
    '@vue/airbnb',
  ],
  rules: {
    // don't require .vue extension when importing
    'import/extensions': ['error', 'always', {
      js: 'never',
      vue: 'never'
    }],
    // disallow reassignment of function parameters
    // disallow parameter object manipulation except for specific exclusions
    'no-param-reassign': ['error', {
      props: true,
      ignorePropertyModificationsFor: [
        'state', // for vuex state
        'acc', // for reduce accumulators
        'e' // for e.returnvalue
      ]
    }],
    // allow optionalDependencies
    'import/no-extraneous-dependencies': ['error', {
      optionalDependencies: ['test/unit/index.js']
    }],
    'no-console': process.env.NODE_ENV === 'production' ? 'error' : 'off',
    'no-debugger': process.env.NODE_ENV === 'production' ? 'error' : 'off',
    'no-tabs': 0,
    'semi': 0,
    "no-restricted-imports": 0,
    'arrow-parens': 0,
    'no-console': 0,
    'import/prefer-default-export': 0,
    'no-restricted-syntax': 0,
    'no-loop-func': 0,
    'no-plusplus': 0,
    'no-continue': 0,
    'quote-props': 0,
    'no-nested-ternary': 0,
    'import/first': 0,
    "max-len": [2, 256, 4, {"ignoreUrls": true}],
    "prefer-destructuring": [0],
    "no-alert": 0,
    "linebreak-style": 0,
    "no-param-reassign": 0,
    "no-multi-assign": 0,
    "vue/no-parsing-error": 0,
    "import/no-extraneous-dependencies": 0,
    "import/no-unresolved": 0,
    "import/extensions": 0,
    "no-unused-vars": 0,
    "prefer-const": 0,
    "no-lonely-if": 0,
  },
  parserOptions: {
    parser: 'babel-eslint',
  },
};