const fs = require('fs')
const path = require('path')

/**
 * recommended enabled/disabled rules for umi project
 * @note This is the ESLint configuration of UMi4 merged into the configuration of UMi3, based on recommended rule set from loaded eslint plugins
 */

const isTsProject = fs.existsSync(path.join(process.cwd() || '.', './tsconfig.json'))
const isTypeAwareEnabled = process.env.DISABLE_TYPE_AWARE === undefined

module.exports = {
  parser: '@babel/eslint-parser',
  plugins: ['@typescript-eslint', 'react', 'jest', 'react-hooks'],
  env: {
    browser: true,
    node: true,
    es6: true,
    mocha: true,
    jest: true,
    jasmine: true
  },
  rules: {
    // eslint built-in rules
    // 不需要返回就用 forEach
    'array-callback-return': 2,
    // eqeq 可能导致潜在的类型转换问题
    eqeqeq: 2,
    'for-direction': 2,
    // 不加 hasOwnProperty 判断会多出原型链的内容
    'guard-for-in': 2,
    'no-async-promise-executor': 2,
    // case 的变量声明虽然确实有问题，但是不重名就不影响运行。不然在这个代码里面都得变成 if else
    // 'no-case-declarations': 2,
    'no-debugger': 2,
    'no-delete-var': 2,
    'no-dupe-else-if': 2,
    'no-duplicate-case': 2,
    // eval（）可能导致潜在的安全问题
    'no-eval': 2,
    'no-ex-assign': 2,
    'no-global-assign': 2,
    'no-invalid-regexp': 2,
    // 没必要改 native 变量
    'no-native-reassign': 2,
    // 修改对象时，会影响原对象；但是有些场景就是有目的
    // 'no-param-reassign': 2,
    // return 值无意义，可能会理解为 resolve
    'no-promise-executor-return': 2,
    'no-self-assign': 2,
    'no-self-compare': 2,
    'no-shadow-restricted-names': 2,
    'no-sparse-arrays': 2,
    'no-unsafe-finally': 2,
    'no-unused-labels': 2,
    'no-useless-catch': 2,
    'no-useless-escape': 2,
    'no-var': 2,
    'no-with': 2,
    'require-yield': 2,
    'use-isnan': 2,

    // config-plugin-react rules
    // button 自带 submit 属性
    'react/button-has-type': 2,
    'react/jsx-key': 2,
    'react/jsx-no-comment-textnodes': 2,
    'react/jsx-no-duplicate-props': 2,
    'react/jsx-no-target-blank': 2,
    'react/jsx-no-undef': 2,
    'react/jsx-uses-react': 2,
    'react/jsx-uses-vars': 2,
    'react/no-children-prop': 2,
    'react/no-danger-with-children': 2,
    'react/no-deprecated': 2,
    'react/no-direct-mutation-state': 2,
    'react/no-find-dom-node': 2,
    'react/no-is-mounted': 2,
    'react/no-string-refs': 2,
    'react/no-render-return-value': 2,
    'react/no-unescaped-entities': 2,
    'react/no-unknown-property': 2,
    'react/require-render-return': 2,

    // config-plugin-jest rules
    'jest/no-conditional-expect': 2,
    'jest/no-deprecated-functions': 2,
    'jest/no-export': 2,
    'jest/no-focused-tests': 2,
    'jest/no-identical-title': 2,
    'jest/no-interpolation-in-snapshots': 2,
    'jest/no-jasmine-globals': 2,
    'jest/no-jest-import': 2,
    'jest/no-mocks-import': 2,
    'jest/no-standalone-expect': 2,
    // 'jest/valid-describe-callback': 2,
    'jest/valid-expect-in-promise': 2,
    'jest/valid-expect': 2,
    'jest/valid-title': 2,

    // config-plugin-react-hooks rules
    'react-hooks/rules-of-hooks': 2
    // config-plugin-typescript rules
  },
  overrides: isTsProject
    ? [
        {
          files: ['**/*.{ts,tsx}'],
          parser: '@typescript-eslint/parser',
          rules: {
            '@typescript-eslint/ban-types': 2,
            '@typescript-eslint/no-confusing-non-null-assertion': 2,
            '@typescript-eslint/no-dupe-class-members': 2,
            // 对一个大的类型定义消参
            // '@typescript-eslint/no-empty-interface': 2,
            '@typescript-eslint/no-for-in-array': 2,
            '@typescript-eslint/no-invalid-this': 2,
            '@typescript-eslint/no-loop-func': 2,
            '@typescript-eslint/no-misused-new': 2,
            '@typescript-eslint/no-namespace': 2,
            '@typescript-eslint/no-non-null-asserted-optional-chain': 2,
            '@typescript-eslint/no-redeclare': 2,
            '@typescript-eslint/no-this-alias': 2,
            // '@typescript-eslint/no-unsafe-argument': 2,
            '@typescript-eslint/no-unused-expressions': 2,
            '@typescript-eslint/no-unused-vars': 2,
            '@typescript-eslint/no-use-before-define': 2,
            '@typescript-eslint/no-useless-constructor': 2,
            '@typescript-eslint/triple-slash-reference': 2
          }
        }
      ]
    : [],
  parserOptions: {
    ecmaFeatures: {
      jsx: true
    },
    babelOptions: {
      presets: ['@babel/preset-env', '@babel/preset-react', '@babel/preset-typescript'],
      plugins: [
        ['@babel/plugin-proposal-decorators', { legacy: true }],
        ['@babel/plugin-proposal-class-properties', { loose: true }]
      ]
    },
    requireConfigFile: false,
    project: isTypeAwareEnabled ? './tsconfig.json' : undefined
  }
}