import js from '@eslint/js';
import typescript from '@typescript-eslint/eslint-plugin';
import typescriptParser from '@typescript-eslint/parser';
import react from 'eslint-plugin-react';
import reactHooks from 'eslint-plugin-react-hooks';
import reactRefresh from 'eslint-plugin-react-refresh';
import jsxA11y from 'eslint-plugin-jsx-a11y';

export default [
  js.configs.recommended,
  {
    files: ['**/*.{ts,tsx,js,jsx}'],
    languageOptions: {
      parser: typescriptParser,
      parserOptions: {
        ecmaFeatures: {
          jsx: true,
        },
        ecmaVersion: 2022,
        sourceType: 'module',
      },
      globals: {
        // Browser globals
        window: 'readonly',
        document: 'readonly',
        localStorage: 'readonly',
        sessionStorage: 'readonly',
        console: 'readonly',
        setTimeout: 'readonly',
        clearTimeout: 'readonly',
        setInterval: 'readonly',
        clearInterval: 'readonly',
        fetch: 'readonly',
        WebSocket: 'readonly',
        File: 'readonly',
        FormData: 'readonly',
        CustomEvent: 'readonly',
        Event: 'readonly',
        CloseEvent: 'readonly',
        MessageEvent: 'readonly',
        KeyboardEvent: 'readonly',
        HTMLElement: 'readonly',
        HTMLDivElement: 'readonly',
        HTMLInputElement: 'readonly',
        HTMLButtonElement: 'readonly',
        HTMLAnchorElement: 'readonly',
        HTMLParagraphElement: 'readonly',
        HTMLHeadingElement: 'readonly',
        HTMLTextAreaElement: 'readonly',
        HTMLSelectElement: 'readonly',
        HTMLImageElement: 'readonly',
        HTMLAudioElement: 'readonly',
        Element: 'readonly',
        Node: 'readonly',
        MouseEvent: 'readonly',
        Blob: 'readonly',
        FileReader: 'readonly',
        Image: 'readonly',
        global: 'readonly',
        NodeJS: 'readonly',
        Buffer: 'readonly',
        crypto: 'readonly',
        performance: 'readonly',
        require: 'readonly',
        process: 'readonly',
        // URL API globals
        URL: 'readonly',
        URLSearchParams: 'readonly',
        // DOM API globals
        DOMRect: 'readonly',
        DOMRectReadOnly: 'readonly',
        Headers: 'readonly',
        navigator: 'readonly',
        WindowEventMap: 'readonly',
        requestAnimationFrame: 'readonly',
        cancelAnimationFrame: 'readonly',
        Notification: 'readonly',
        NotificationOptions: 'readonly',
        NotificationPermission: 'readonly',
        IntersectionObserver: 'readonly',
        IntersectionObserverInit: 'readonly',
        MessageChannel: 'readonly',
        confirm: 'readonly',
        // Service Worker globals
        self: 'readonly',
        caches: 'readonly',
        ServiceWorkerRegistration: 'readonly',
        Cache: 'readonly',
        CacheStorage: 'readonly',
        Response: 'readonly',
        Request: 'readonly',
        clients: 'readonly',
        // React globals
        React: 'readonly',
        // Test globals
        beforeAll: 'readonly',
        afterAll: 'readonly',
        afterEach: 'readonly',
        beforeEach: 'readonly',
        describe: 'readonly',
        it: 'readonly',
        test: 'readonly',
        expect: 'readonly',
        vi: 'readonly',
        vitest: 'readonly',
        waitFor: 'readonly',
        jest: 'readonly',
        AbortController: 'readonly',
        AbortSignal: 'readonly',
        BroadcastChannel: 'readonly',
        DOMException: 'readonly',
        atob: 'readonly',
        PerformanceNavigationTiming: 'readonly',
        PerformanceObserver: 'readonly',
        HTMLFormElement: 'readonly',
        HTMLTableElement: 'readonly',
        HTMLTableSectionElement: 'readonly',
        HTMLTableRowElement: 'readonly',
        HTMLTableCellElement: 'readonly',
        HTMLTableCaptionElement: 'readonly',
        HTMLSpanElement: 'readonly',
        HTMLCanvasElement: 'readonly',
        HTMLLabelElement: 'readonly',
        FileList: 'readonly',
        MediaQueryListEvent: 'readonly',
        IntersectionObserver: 'readonly',
        IntersectionObserverEntry: 'readonly',
        IntersectionObserverCallback: 'readonly',
        ResizeObserver: 'readonly',
        ResizeObserverEntry: 'readonly',
        HeadersInit: 'readonly',
        EventListener: 'readonly',
      },
    },
    plugins: {
      '@typescript-eslint': typescript,
      'react': react,
      'react-hooks': reactHooks,
      'react-refresh': reactRefresh,
      'jsx-a11y': jsxA11y,
    },
    rules: {
      // TypeScript
      '@typescript-eslint/no-unused-vars': ['warn', { argsIgnorePattern: '^_' }],
      '@typescript-eslint/explicit-function-return-type': 'off',
      '@typescript-eslint/explicit-module-boundary-types': 'off',
      '@typescript-eslint/no-explicit-any': 'off',
      '@typescript-eslint/no-non-null-assertion': 'warn',

      // React
      'react/react-in-jsx-scope': 'off',
      'react/prop-types': 'off',
      'react-hooks/rules-of-hooks': 'error',
      'react-hooks/exhaustive-deps': 'warn',
      'react-refresh/only-export-components': [
        'warn',
        { allowConstantExport: true }
      ],

      // General
      'no-console': 'off',
      'no-debugger': 'error',
      'prefer-const': 'error',
      'no-var': 'error',
      'object-shorthand': 'error',
      'prefer-template': 'error',
      'no-unused-vars': 'off', // Handled by @typescript-eslint/no-unused-vars
      'no-useless-escape': 'error',
      'no-prototype-builtins': 'warn',

      // Typography: Enforce type scale usage
      // Warn on arbitrary text sizes in className strings (e.g., text-[10px], text-[9px])
      // Note: SVG chart text (text-[2px], text-[1.5px]) may need exceptions - review case by case
      'no-restricted-syntax': [
        'warn',
        {
          selector:
            "Literal[value=/text-\\[\\d+(\\.\\d+)?(px|rem)\\]/], TemplateElement[value.raw=/text-\\[\\d+(\\.\\d+)?(px|rem)\\]/]",
          message:
            'Use type scale classes (text-xs, text-sm, text-base, text-lg, text-xl, text-2xl, text-3xl, text-4xl) instead of arbitrary sizes. SVG chart text (text-[2px], text-[1.5px]) may be an exception - add eslint-disable comment if needed.',
        },
        // Spacing: Enforce spacing scale usage
        // Warn on arbitrary spacing values that don't follow 4px base scale
        // Valid scale values: 0, 1, 2, 3, 4, 5, 6, 8, 10, 12, 16, 20, 24
        // Arbitrary values like gap-[7px], p-[9px], etc. should use scale values instead
        {
          selector:
            "Literal[value=/(gap-|p-|m-|px-|py-|mx-|my-|space-[xy]-)\\[\\d+(\\.\\d+)?(px|rem)\\]/], TemplateElement[value.raw=/(gap-|p-|m-|px-|py-|mx-|my-|space-[xy]-)\\[\\d+(\\.\\d+)?(px|rem)\\]/]",
          message:
            'Use spacing scale classes (gap-0 through gap-24, p-0 through p-24, etc.) instead of arbitrary sizes. Valid scale values follow 4px base: 0, 1, 2, 3, 4, 5, 6, 8, 10, 12, 16, 20, 24. For exceptions, add eslint-disable comment.',
        },
        // Colors: Prevent Tailwind default colors (use Kodo design system colors instead)
        // Warn on default Tailwind color classes: slate, gray, zinc, neutral, stone, red, orange, amber, yellow, lime, green, emerald, teal, cyan, sky, blue, indigo, violet, purple, fuchsia, pink, rose
        // Allow: kodo-* colors, arbitrary values like text-[#fff], and color utilities without shades
        {
          selector:
            "Literal[value=/(text-|bg-|border-|ring-|outline-|divide-|placeholder-|from-|via-|to-|accent-|caret-|fill-|stroke-)(slate|gray|zinc|neutral|stone|red|orange|amber|yellow|lime|green|emerald|teal|cyan|sky|blue|indigo|violet|purple|fuchsia|pink|rose)-(50|100|200|300|400|500|600|700|800|900|950)/], TemplateElement[value.raw=/(text-|bg-|border-|ring-|outline-|divide-|placeholder-|from-|via-|to-|accent-|caret-|fill-|stroke-)(slate|gray|zinc|neutral|stone|red|orange|amber|yellow|lime|green|emerald|teal|cyan|sky|blue|indigo|violet|purple|fuchsia|pink|rose)-(50|100|200|300|400|500|600|700|800|900|950)/]",
          message:
            'Use Kodo design system colors (kodo-cyan, kodo-red, kodo-lime, kodo-steel, etc.) instead of Tailwind default colors. See apps/web/src/styles/COLOR_USAGE.md for color mapping. For exceptions (e.g., test files), add eslint-disable comment.',
        },
        // Components: Enforce Button component usage (prevent native button elements)
        // Warn on native <button> elements - use <Button> component from @/components/ui/button instead
        {
          selector: 'JSXOpeningElement[name.name="button"]',
          message:
            'Use the Button component from @/components/ui/button instead of native <button> elements. This ensures consistent styling, accessibility, and design system compliance. For exceptions (e.g., test files, third-party components), add eslint-disable comment.',
        },
      ],
    },
    settings: {
      react: {
        version: 'detect',
      },
    },
  },
  {
    ignores: [
      'node_modules/',
      'dist/',
      'build/',
      'target/',
      '_archive/',
      'archive/',
      '*.config.js',
      '*.config.ts',
      '*.config.cjs',
      '**/ui.backup/**',
    ],
  },
];
