import eslint from '@eslint/js'
import tseslint from 'typescript-eslint'
import importX from 'eslint-plugin-import-x'
import react from 'eslint-plugin-react'
import reactHooks from 'eslint-plugin-react-hooks'
import jsxA11y from 'eslint-plugin-jsx-a11y'
import eslintConfigPrettier from 'eslint-config-prettier'
import eslintPluginPrettier from 'eslint-plugin-prettier'
import globals from 'globals'
import boundaries from 'eslint-plugin-boundaries'
import reactRefresh from 'eslint-plugin-react-refresh'

const fsdPathGroups = [
  { pattern: 'app/**', group: 'internal', position: 'before' },
  { pattern: 'pages/**', group: 'internal', position: 'before' },
  { pattern: 'widgets/**', group: 'internal', position: 'before' },
  { pattern: 'features/**', group: 'internal', position: 'before' },
  { pattern: 'entities/**', group: 'internal', position: 'before' },
  { pattern: 'shared/**', group: 'internal', position: 'before' },
  // alias вида "@/shared/..."
  { pattern: '@/**', group: 'internal', position: 'before' },
]

/** Правила + FSD-границы. */
export default tseslint.config(
  {
    ignores: ['dist/**', 'node_modules/**'],
  },
  {
    name: 'react-plugin-settings',
    settings: { react: { version: '19' } },
  },
  eslint.configs.recommended,
  ...tseslint.configs.recommended,
  importX.flatConfigs.recommended,
  importX.flatConfigs.typescript,
  react.configs.flat.recommended,
  react.configs.flat['jsx-runtime'],
  reactHooks.configs.flat.recommended,
  reactRefresh.configs.vite,
  jsxA11y.flatConfigs.recommended,
  {
    files: ['**/*.{ts,tsx}'],
    languageOptions: {
      globals: { ...globals.browser, ...globals.es2021 },
    },
    settings: {
      'import/internal-regex': '^(@/)?(app|pages|widgets|features|entities|shared)(/|$)',
      'import/resolver': {
        typescript: { project: './tsconfig.json' },
        node: true,
      },
    },
    rules: {
      'no-console': ['error', { allow: ['warn', 'error', 'info'] }],
      quotes: ['error', 'single', { avoidEscape: true, allowTemplateLiterals: false }],
      'max-len': [
        'warn',
        {
          code: 120,
          ignoreStrings: true,
          ignoreTrailingComments: true,
          ignoreTemplateLiterals: true,
          ignoreComments: true,
        },
      ],
      'import-x/extensions': [
        'warn',
        {
          js: 'never',
          jsx: 'never',
          ts: 'never',
          tsx: 'never',
          json: 'always',
          svg: 'always',
        },
      ],
      'import-x/prefer-default-export': 'off',
      'import-x/no-extraneous-dependencies': 'off',
      'import-x/no-cycle': 'warn',
      'import-x/order': [
        'warn',
        {
          groups: ['builtin', 'external', 'internal', 'parent', 'sibling', 'index', 'object', 'type'],
          pathGroups: [
            { pattern: 'react', group: 'external', position: 'before' },
            { pattern: 'react-dom', group: 'external', position: 'before' },
            { pattern: '@mui/**', group: 'external', position: 'before' },
            ...fsdPathGroups,
          ],
          pathGroupsExcludedImportTypes: ['react'],
          'newlines-between': 'never',
          alphabetize: { order: 'asc', caseInsensitive: true },
        },
      ],
      'react/prop-types': 'off',
      'react/jsx-curly-brace-presence': ['error', { props: 'never', children: 'ignore' }],
      'react/display-name': 'off',
      'react/no-unescaped-entities': 'warn',
      '@typescript-eslint/no-explicit-any': 'warn',
      '@typescript-eslint/no-unused-vars': ['error', { args: 'none' }],
      'no-unused-vars': 'off',
      '@typescript-eslint/no-shadow': 'off',
      'no-shadow': 'off',
      '@typescript-eslint/no-use-before-define': 'error',
      'no-use-before-define': 'off',
      'consistent-return': 'off',
      '@typescript-eslint/no-empty-function': 'warn',
      '@typescript-eslint/no-unnecessary-type-constraint': 'warn',
      'class-methods-use-this': 'warn',
    },
  },
  {
    files: ['**/*.{ts,tsx}'],
    plugins: { prettier: eslintPluginPrettier },
    rules: { 'prettier/prettier': ['warn', { endOfLine: 'lf' }] },
  },
  eslintConfigPrettier,
  {
    files: ['**/*.{ts,tsx}'],
    plugins: { boundaries },
    languageOptions: {
      parserOptions: {
        ecmaVersion: 'latest',
        sourceType: 'module',
        ecmaFeatures: { jsx: true },
      },
    },
    settings: {
      'import/resolver': {
        typescript: { project: './tsconfig.json' },
      },
      'boundaries/include': ['src/**/*'],
      'boundaries/elements': [
        { type: 'app', pattern: 'src/app/**' },
        { type: 'pages', pattern: 'src/pages/**' },
        { type: 'widgets', pattern: 'src/widgets/**' },
        { type: 'features', pattern: 'src/features/**' },
        { type: 'entities', pattern: 'src/entities/**' },
        { type: 'shared', pattern: 'src/shared/**' },
      ],
    },
    rules: {
      'boundaries/no-unknown': 'off',
      'boundaries/no-unknown-files': 'off',
      'boundaries/dependencies': [
        'error',
        {
          default: 'disallow',
          checkUnknownLocals: true,
          rules: [
            { from: { type: 'shared' }, allow: { to: { type: 'shared' } } },
            {
              from: { type: 'entities' },
              allow: { to: { type: ['entities', 'shared'] } },
            },
            {
              from: { type: 'features' },
              allow: { to: { type: ['features', 'entities', 'shared'] } },
            },
            {
              from: { type: 'widgets' },
              allow: {
                to: { type: ['widgets', 'features', 'entities', 'shared'] },
              },
            },
            {
              from: { type: 'pages' },
              allow: {
                to: {
                  type: ['pages', 'widgets', 'features', 'entities', 'shared'],
                },
              },
            },
            {
              from: { type: 'app' },
              allow: {
                to: {
                  type: ['app', 'pages', 'widgets', 'features', 'entities', 'shared'],
                },
              },
            },
          ],
        },
      ],
    },
  },
  {
    files: ['src/app/providers/theme-controller.tsx'],
    rules: { 'react-refresh/only-export-components': 'off' },
  },
  {
    files: ['src/pages/**/ui/**/*.tsx'],
    rules: { 'react-hooks/incompatible-library': 'off' },
  },
  {
    files: ['eslint.config.js'],
    rules: {
      'import-x/no-unresolved': 'off',
      'import-x/no-named-as-default': 'off',
      'import-x/no-named-as-default-member': 'off',
    },
  },
)