fix(): eslint setup

.eslintrc.cjs

@@ -0,0 +1,84 @@
+module.exports = {
+  parser: '@typescript-eslint/parser',
+  parserOptions: {
+    project: 'tsconfig.linting.json',
+    tsconfigRootDir: __dirname,
+    sourceType: 'module',
+  },
+  plugins: [
+    '@typescript-eslint/eslint-plugin',
+    'simple-import-sort',
+    // 'require-extensions',
+  ],
+  extends: [
+    'plugin:@typescript-eslint/recommended',
+    'plugin:prettier/recommended',
+    // 'plugin:require-extensions/recommended',
+  ],
+  root: true,
+  env: {
+    node: true,
+    jest: true,
+  },
+  ignorePatterns: ['.eslintrc.js'],
+  rules: {
+    '@typescript-eslint/await-thenable': 'error',
+    '@typescript-eslint/dot-notation': 'off',
+    '@typescript-eslint/no-unused-vars': 'warn',
+
+    '@typescript-eslint/no-unused-expressions': 'error',
+    '@typescript-eslint/no-var-requires': 'error',
+    '@typescript-eslint/prefer-namespace-keyword': 'error',
+
+    '@typescript-eslint/no-explicit-any': 'error',
+    '@typescript-eslint/no-floating-promises': 'off',
+    '@typescript-eslint/no-inferrable-types': 'off',
+    '@typescript-eslint/promise-function-async': 'off',
+    '@typescript-eslint/no-use-before-define': 'off',
+    '@typescript-eslint/no-non-null-assertion': 'off',
+    '@typescript-eslint/ban-types': 'off',
+    '@typescript-eslint/ban-ts-comment': 'off',
+
+    'no-dupe-class-members': 'off',
+    'no-param-reassign': ['error'],
+    'array-bracket-spacing': ['error', 'never'],
+    indent: ['off'],
+    'linebreak-style': ['error', 'unix'],
+    'lines-between-class-members': ['warn', 'always'],
+    semi: 'off',
+    '@typescript-eslint/semi': ['error'],
+    'new-cap': 'off',
+    'no-console': 'off',
+    'no-debugger': 'off',
+    'no-mixed-spaces-and-tabs': 2,
+    'no-use-before-define': [2, 'nofunc'],
+    'no-unreachable': ['warn'],
+    'no-unused-vars': ['warn'],
+    'no-extra-parens': ['off'],
+    'no-mixed-operators': ['off'],
+    quotes: [2, 'single', 'avoid-escape'],
+    'block-scoped-var': 2,
+    'brace-style': [2, '1tbs', { allowSingleLine: true }],
+    'computed-property-spacing': [2, 'never'],
+    'keyword-spacing': 2,
+    'space-unary-ops': 2,
+    'sort-imports': [
+      'error',
+      {
+        ignoreCase: false,
+        ignoreDeclarationSort: true,
+        ignoreMemberSort: false,
+        memberSyntaxSortOrder: ['none', 'all', 'multiple', 'single'],
+        allowSeparatedGroups: false,
+      },
+    ],
+    'max-len': ['warn', { code: 140 }],
+
+    // newer rules
+    '@typescript-eslint/interface-name-prefix': 'off',
+    '@typescript-eslint/explicit-function-return-type': 'off',
+    '@typescript-eslint/explicit-module-boundary-types': 'off',
+    'simple-import-sort/imports': 'error',
+    'simple-import-sort/exports': 'error',
+  },
+};