.eslintrc

root: true
parser: '@typescript-eslint/parser'
parserOptions:
  project: ./tsconfig.eslint.json
plugins:
  - '@typescript-eslint'
  - jest
  - import
extends:
  - 'eslint:all'
  - 'plugin:@typescript-eslint/eslint-recommended'
  - 'plugin:@typescript-eslint/recommended'
  - 'plugin:@typescript-eslint/recommended-requiring-type-checking'
  - 'plugin:jest/all'
  - 'plugin:import/typescript'

rules:
  import/group-exports: warn
  import/no-anonymous-default-export:
    - error
    - allowObject: true
  import/no-named-default: error
  import/no-unassigned-import:
    - error
    - allow:
        - reflect-metadata
  import/export: error
  import/prefer-default-export: warn
  import/default: off
  import/exports-last: error
  import/no-duplicates: error
  import/no-extraneous-dependencies: error
  import/no-named-as-default-member: error
  import/extensions:
    - error
    - never
    - json: always
  import/no-unresolved: error
  import/no-absolute-path: error
  import/no-dynamic-require: error
  import/no-amd: error
  import/no-mutable-exports: error
  import/no-commonjs: error
  import/no-self-import: error
  import/no-named-as-default: error
#  import/no-relative-parent-imports: error
  import/no-useless-path-segments:
    - error
    - noUselessIndex: true
      commonjs: true

  jest/no-hooks: off
  # prettier reformats the whole file, I would have to disable my linter for tests and reformat every test
  jest/prefer-inline-snapshots: off
  jest/no-disabled-tests: off
  # we need this for module augmentation
  jest/no-jest-import: off

  '@typescript-eslint/array-type':
    - warn
    - default: array-simple

  # in vast majority of cases 'this' is only used in classes so I'd
  # rather save myself some boilerplate
  '@typescript-eslint/unbound-method': off
  '@typescript-eslint/consistent-type-definitions': 1
  '@typescript-eslint/default-param-last': error
  '@typescript-eslint/explicit-function-return-type': 0
  '@typescript-eslint/explicit-member-accessibility': 0
  '@typescript-eslint/member-delimiter-style': 'off'
  '@typescript-eslint/naming-convention':
    - warn
    - format:
        - PascalCase
      prefix:
        - is
        - should
        - has
        - can
        - did
        - will
      selector: variable
      types:
        - boolean
    - format:
        - PascalCase
        - camelCase
      selector: variable
      types:
        - function
    - format:
        - UPPER_CASE
      selector: enumMember
    - format:
        - camelCase
        - PascalCase
      selector: function
    - format:
        - camelCase
        - PascalCase
        - UPPER_CASE
      selector: default
    - format:
        - camelCase
        - UPPER_CASE
        - PascalCase
      selector: variable
    - format:
        - camelCase
      leadingUnderscore: allow
      selector: parameter
    - format:
        - camelCase
      leadingUnderscore: require
      modifiers:
        - private
      selector: memberLike
    - format:
        - PascalCase
      selector: typeLike
  '@typescript-eslint/no-dynamic-delete': 1
  '@typescript-eslint/no-empty-function':
    - warn
    - allow:
        - protected-constructors
        - private-constructors
  '@typescript-eslint/no-extra-non-null-assertion': error
  '@typescript-eslint/no-extraneous-class': warn
  '@typescript-eslint/no-floating-promises':
    - error
    - ignoreVoid: true
  '@typescript-eslint/no-implied-eval': error
  '@typescript-eslint/no-inferrable-types': warn
  '@typescript-eslint/no-non-null-asserted-optional-chain': error
  '@typescript-eslint/no-require-imports': error
  '@typescript-eslint/no-throw-literal': error
  '@typescript-eslint/no-unnecessary-condition':
    - warn
    - ignoreRhs: true
  '@typescript-eslint/no-unnecessary-qualifier': error
  '@typescript-eslint/no-unnecessary-type-arguments': warn
  '@typescript-eslint/no-unused-expressions': warn
  '@typescript-eslint/no-unused-vars':
    - warn
    - argsIgnorePattern: returns|type
      args: none
  '@typescript-eslint/no-use-before-define': 'off'
  '@typescript-eslint/no-useless-constructor': error
  '@typescript-eslint/prefer-for-of': warn
  '@typescript-eslint/prefer-function-type': warn
  '@typescript-eslint/prefer-nullish-coalescing':
    - warn
    - forceSuggestionFixer: true
  '@typescript-eslint/prefer-optional-chain': error
  '@typescript-eslint/prefer-readonly': error
  '@typescript-eslint/promise-function-async': error
  '@typescript-eslint/require-array-sort-compare': error
  '@typescript-eslint/require-await': error
  '@typescript-eslint/restrict-plus-operands':
    - error
    - checkCompoundAssignments: true
  '@typescript-eslint/restrict-template-expressions':
    - off
    - allowNumber: true
  '@typescript-eslint/return-await': error
  # Good idea probably, but it's just not worth it, especially wheh
  # cases are covered by tests.
  '@typescript-eslint/strict-boolean-expressions': off
#    - warn
#    - allowNullable: true
#      allowSafe: true
#      ignoreRhs: true
  '@typescript-eslint/unified-signatures': off

  array-element-newline: 'off'
  arrow-body-style: warn
  arrow-parens: 'off'
  array-bracket-newline: off
  brace-style: 'off'
  callback-return: 'off'
  capitalized-comments: 'off'
  class-methods-use-this: 'off'
  comma-dangle: 'off'
  curly: 'off'
  default-param-last: 'off'
  dot-location: 'off'
  eol-last: 'off'
  func-call-spacing: 'off'
  func-names:
    - warn
    - as-needed
  func-style: 'off'
  function-call-argument-newline: 'off'
  function-paren-newline: 'off'
  id-length:
    - warn
    - exceptions:
        - x
        - _
        - e
        - i
        - R
  implicit-arrow-linebreak: 'off'
  indent: 'off'
  init-declarations: 'off'
  key-spacing: 'off'
  line-comment-position: warn
  linebreak-style: 'off'
  lines-around-comment: 'off'
  lines-between-class-members: 'off'
  max-classes-per-file: 'off'
  max-len:
    - warn
    - code: 150
      ignorePattern: ^import
      ignoreUrls: true
      tabWidth: 2
  max-lines-per-function: 'off'
  max-params:
    - warn
    - max: 5
  max-statements:
    - warn
    - max: 20
  multiline-comment-style: 'off'
  multiline-ternary:
    - warn
    - always-multiline
  new-cap:
    - warn
    - capIsNew: false
  new-parens: 'off'
  newline-per-chained-call: 'off'
  no-await-in-loop: warn
  no-confusing-arrow: 'off'
  no-console: 'off'
  no-constant-condition: 'off'
  no-else-return: warn
  no-extra-boolean-cast: 'off'
  no-extra-parens: 'off'
  no-extra-semi: 'off'
  no-implicit-coercion:
    - error
    - allow:
        - '!!'
  no-import-assign: warn
  no-inline-comments: warn
  no-magic-numbers: 'off'
  no-mixed-spaces-and-tabs:
    - warn
    - smart-tabs
  no-multi-spaces: 'off'
  no-multiple-empty-lines: 'off'
  no-nested-ternary: 'off'
  no-plusplus: warn
  no-process-env: 'off'
  no-return-await: 'off'
  no-shadow:
    - warn
    - builtinGlobals: true
  no-sync: 'off'
  no-tabs: 'off'
  no-ternary: 'off'
  no-trailing-spaces: 'off'
  no-undefined: 'off'
  no-underscore-dangle: 'off'
  no-unused-expressions: 'off'
  no-unused-vars: 'off'
  no-useless-constructor: 'off'
  no-useless-rename: 'off'
  no-warning-comments: warn
  nonblock-statement-body-position: 'off'
  object-curly-spacing: 'off'
  object-curly-newline: off
  object-property-newline: 'off'
  object-shorthand: 'off'
  one-var: 'off'
  operator-linebreak: warn
  padded-blocks: 'off'
  prefer-const: warn
  prefer-template: warn
  quote-props: 'off'
  quotes: 'off'
  require-atomic-updates: warn
  require-await: 'off'
  semi: 'off'
  sort-imports: 'off'
  sort-keys: 'off'
  sort-vars: 'off'
  space-before-blocks: 'off'
  space-before-function-paren: 'off'
  space-in-parens: 'off'
  space-infix-ops: 'off'
  spaced-comment: 'off'
  template-curly-spacing: 'off'

overrides:
  - files:
      - '*.d.ts'
    rules:
      '@typescript-eslint/no-unused-vars': 'off'
  - files:
      - '*.spec.ts'
    rules:
      '@typescript-eslint/require-await': 'off'
      init-declarations: 'off'

settings:
  import/extensions:
    - ts
  import/parsers:
    '@typescript-eslint/parser':
      - .ts
      - .tsx
  import/resolver:
    typescript:
      alwaysTryTypes: true

env:
  jest/globals: true