import js from '@eslint/js';
import tseslint from '@typescript-eslint/eslint-plugin';
import tsparser from '@typescript-eslint/parser';
import react from 'eslint-plugin-react';
import reactHooks from 'eslint-plugin-react-hooks';

export default [
  // Ignore patterns
  {
    ignores: [
      '**/dist/**',
      '**/out/**',
      '**/node_modules/**',
      '**/*.d.ts',
      '.veritas-kanban/**',
      '.veritas-desktop-dev/**',
      // Config files (CommonJS tooling)
      'web/tailwind.config.js',
      'web/vite.config.js',
      'web/postcss.config.js',
    ],
  },

  // Base JS config
  js.configs.recommended,

  // TypeScript files (server, shared, cli, mcp, desktop)
  {
    files: [
      'server/src/**/*.ts',
      'shared/src/**/*.ts',
      'cli/src/**/*.ts',
      'mcp/src/**/*.ts',
      'desktop/src/**/*.ts',
      'desktop/electron.vite.config.ts',
      'desktop/vitest.config.ts',
    ],
    languageOptions: {
      parser: tsparser,
      parserOptions: {
        ecmaVersion: 2022,
        sourceType: 'module',
      },
    },
    plugins: {
      '@typescript-eslint': tseslint,
    },
    rules: {
      // Turn off base rules that conflict with TypeScript
      'no-unused-vars': 'off',
      'no-undef': 'off',

      // TypeScript rules
      '@typescript-eslint/no-unused-vars': [
        'warn',
        {
          argsIgnorePattern: '^_',
          varsIgnorePattern: '^_',
        },
      ],
      '@typescript-eslint/no-explicit-any': 'warn',
      '@typescript-eslint/explicit-function-return-type': 'off',
      '@typescript-eslint/no-non-null-assertion': 'warn',
    },
  },

  // k6 load-test files (ES module syntax, k6 globals)
  {
    files: ['load-tests/**/*.js'],
    languageOptions: {
      ecmaVersion: 2022,
      sourceType: 'module',
      globals: {
        __ENV: 'readonly',
        console: 'readonly',
      },
    },
  },

  // Node release/maintenance scripts and dependency-free runtime assets
  {
    files: ['scripts/**/*.mjs', 'server/runtime/**/*.mjs'],
    languageOptions: {
      ecmaVersion: 2022,
      sourceType: 'module',
      globals: {
        Buffer: 'readonly',
        console: 'readonly',
        fetch: 'readonly',
        process: 'readonly',
        URL: 'readonly',
      },
    },
  },

  // React/TypeScript files (web)
  {
    files: ['web/src/**/*.tsx', 'web/src/**/*.ts'],
    languageOptions: {
      parser: tsparser,
      parserOptions: {
        ecmaVersion: 2022,
        sourceType: 'module',
        ecmaFeatures: {
          jsx: true,
        },
      },
    },
    plugins: {
      '@typescript-eslint': tseslint,
      react,
      'react-hooks': reactHooks,
    },
    settings: {
      react: {
        version: 'detect',
      },
    },
    rules: {
      // Turn off base rules that conflict with TypeScript
      'no-unused-vars': 'off',
      'no-undef': 'off',

      // TypeScript rules
      '@typescript-eslint/no-unused-vars': [
        'warn',
        {
          argsIgnorePattern: '^_',
          varsIgnorePattern: '^_',
        },
      ],
      '@typescript-eslint/no-explicit-any': 'warn',
      '@typescript-eslint/explicit-function-return-type': 'off',
      '@typescript-eslint/no-non-null-assertion': 'warn',

      // React rules
      'react/react-in-jsx-scope': 'off',
      'react/prop-types': 'off',
      'react-hooks/rules-of-hooks': 'error',
      'react-hooks/exhaustive-deps': 'warn',
    },
  },
];