/* eslint-disable import/no-commonjs,import/no-import-module-exports */
import type eslint from 'eslint'
import {
  EXTENSIONS_PATTERN,
  TESTS_LIST,
} from '@niieani/scaffold-config-constants'

const jestConfig: eslint.Linter.ConfigOverride = {
  files: TESTS_LIST,
  plugins: ['jest'],
  env: {
    jest: true,
    'jest/globals': false,
  },
  rules: {
    // Prefer `it` over `test`
    'jest/consistent-test-it': 'error',
    'jest/require-top-level-describe': 'error',
    'jest/valid-describe-callback': 'error',
    'jest/valid-expect': 'error',

    // Ensure we are expecting/asserting correctly
    'jest/expect-expect': 'error',
    'jest/no-conditional-in-test': 'error',
    'jest/no-if': 'off', // deprecated
    'jest/no-standalone-expect': 'error',
    'jest/prefer-expect-resolves': 'error',

    // Ensure our tests are deterministic
    'jest/no-interpolation-in-snapshots': 'error',
    'jest/no-large-snapshots': 'off',

    // Encourage readable titles and descriptions
    'jest/lowercase-name': 'off',
    'jest/no-identical-title': 'error',
    'jest/prefer-lowercase-title': 'off',
    'jest/valid-title': 'error',

    // Prefer explicit APIs for better readability
    'jest/no-alias-methods': 'error',
    'jest/no-deprecated-functions': 'error',
    'jest/no-duplicate-hooks': 'error',
    'jest/no-jasmine-globals': 'error',
    'jest/no-restricted-matchers': 'off',
    'jest/no-test-prefixes': 'error',
    'jest/prefer-hooks-on-top': 'error',
    'jest/prefer-to-be': 'error',
    'jest/prefer-to-contain': 'error',
    'jest/prefer-to-have-length': 'error',
    'jest/prefer-todo': 'error',
    'jest/require-to-throw-message': 'error',

    // Prefer wrapping instead of mutating test subjects
    'jest/prefer-spy-on': 'error',

    // Prefer async/await/promises over callbacks (duh)
    'jest/no-done-callback': 'error',
    'jest/no-test-return-statement': 'error',
    'jest/valid-expect-in-promise': 'off',

    // Avoid invalid or skipped tests from being on master
    'jest/no-commented-out-tests': 'off',
    'jest/no-disabled-tests': 'error',
    'jest/no-focused-tests': 'error',

    // Use fixtures or helper files instead
    'jest/no-export': 'error',
    'jest/no-mocks-import': 'error',

    // Too abrasive and annoying
    'jest/prefer-expect-assertions': 'off',
    'jest/prefer-snapshot-hint': 'off',
    'jest/prefer-strict-equal': 'off',
    'jest/require-hook': 'off',
    'jest/unbound-method': 'off',

    // Hooks are nice / is shared state an issue? Revisit?
    'jest/no-hooks': 'off',

    // Sometimes we only want to check that its called... Revisit?
    'jest/prefer-called-with': 'off',

    // This is nice for catching and testing errors... Revisit?
    'jest/no-conditional-expect': 'off',
  },
}

const testsConfig: eslint.Linter.ConfigOverride = {
  files: TESTS_LIST,
  env: {
    node: true,
  },
  rules: {
    // Disable these as it makes writing tests much easier
    'max-classes-per-file': 'off',
    'no-console': 'off',
    'no-magic-numbers': 'off',
    'sort-keys': 'off',
    'promise/prefer-await-to-callbacks': 'off',
    '@typescript-eslint/no-empty-function': 'off',
    '@typescript-eslint/no-extraneous-class': 'off',
    '@typescript-eslint/no-implicit-any-catch': 'off',
    '@typescript-eslint/no-unused-vars': 'off',
    '@typescript-eslint/no-unused-vars-experimental': 'off',
    '@typescript-eslint/no-useless-constructor': 'off',
    '@typescript-eslint/promise-function-async': 'off',

    // Some imports are dev dependencies
    'import/no-extraneous-dependencies': 'off',

    // Allow `any` in tests for convenience
    '@typescript-eslint/no-explicit-any': 'off',
    '@typescript-eslint/no-unsafe-argument': 'off',
    '@typescript-eslint/no-unsafe-assignment': 'off',
    '@typescript-eslint/no-unsafe-call': 'off',
    '@typescript-eslint/no-unsafe-member-access': 'off',
    '@typescript-eslint/no-unsafe-return': 'off',

    // Allow relative import paths
    'import/no-relative-packages': 'off',
    'node/no-unpublished-import': 'off',
  },
}

const miscConfig: eslint.Linter.ConfigOverride = {
  files: [
    '**/{__mocks__,__fixtures__,__generated__}/**/*',
    `**/{tests,__tests__}/**/{helpers,utils,setup}.{${EXTENSIONS_PATTERN}}`,
  ],
  rules: {
    'import/no-commonjs': 'off',

    // Allow exports from these files
    'jest/no-export': 'off',

    // Allow composable / factoried unit tests
    'jest/require-top-level-describe': 'off',

    // Allow `any` in tests for convenience
    '@typescript-eslint/no-explicit-any': 'off',
    '@typescript-eslint/no-unsafe-argument': 'off',
    '@typescript-eslint/no-unsafe-assignment': 'off',
    '@typescript-eslint/no-unsafe-call': 'off',
    '@typescript-eslint/no-unsafe-member-access': 'off',
    '@typescript-eslint/no-unsafe-return': 'off',
  },
}

// We only want to apply the Jest plugin and other testing rules
// when inside of a test specific file. Not the entire codebase.
const config: eslint.Linter.Config = {
  overrides: [jestConfig, testsConfig, miscConfig],
}

module.exports = config