import js from '@eslint/js';
import eslintConfigPrettier from 'eslint-config-prettier/flat';
import reactHooks from 'eslint-plugin-react-hooks';
import reactRefresh from 'eslint-plugin-react-refresh';
import { defineConfig, globalIgnores } from 'eslint/config';
import globals from 'globals';
import tseslint from 'typescript-eslint';

const tsconfigRootDir = decodeURIComponent(new URL('.', import.meta.url).pathname).replace(
    /^\/(.:\/)/,
    '$1',
);

export const sourceIgnores = globalIgnores([
    '**/dist/**',
    '**/node_modules/**',
    '**/coverage/**',
    '**/.turbo/**',
    '**/.vite/**',
    '.claude/**',
    'dev/**',
    '**/*.tsbuildinfo',
    '**/test/fixtures/**',
    'packages/runtime/native/**',
    'packages/mcp/src/generated/**',
]);

export default defineConfig([
    sourceIgnores,
    {
        files: ['**/*.{js,mjs,cjs,ts,tsx}'],
        extends: [js.configs.recommended],
        languageOptions: {
            ecmaVersion: 2023,
            sourceType: 'module',
            globals: {
                ...globals.es2023,
                ...globals.node,
            },
        },
        rules: {
            'no-unused-vars': 'off',
            'no-useless-assignment': 'off',
            'prefer-const': 'off',
            'preserve-caught-error': 'off',
        },
    },
    {
        files: ['**/*.{ts,tsx}'],
        extends: [tseslint.configs.recommended],
        languageOptions: {
            parserOptions: {
                tsconfigRootDir,
            },
        },
        rules: {
            'prefer-const': 'off',
            '@typescript-eslint/no-explicit-any': 'error',
            '@typescript-eslint/no-empty-object-type': 'off',
            '@typescript-eslint/no-this-alias': 'off',
            '@typescript-eslint/no-unused-vars': [
                'warn',
                {
                    argsIgnorePattern: '^_',
                    varsIgnorePattern: '^_',
                    caughtErrorsIgnorePattern: '^_',
                },
            ],
        },
    },
    {
        files: ['**/tests/**/*.{ts,tsx}', '**/*.test.{ts,tsx}'],
        rules: {
            '@typescript-eslint/no-explicit-any': 'off',
        },
    },
    {
        files: ['**/bench/**/*.{ts,tsx}', 'packages/proton/test/**/*.{ts,tsx}'],
        rules: {
            '@typescript-eslint/no-explicit-any': 'off',
        },
    },
    {
        // OIDB service layer is namespace-per-cmd by design — the
        // structural-typing contract (namespace IS the OidbCallSpec) and
        // the file:cmd 1:1 mapping are the whole point. Disable the
        // module-syntax preference here only.
        files: [
            'packages/protocol/src/oidb-services/**/*.ts',
            'packages/protocol/tests/oidb-services/**/*.ts',
        ],
        rules: {
            '@typescript-eslint/no-namespace': 'off',
        },
    },
    {
        files: ['packages/webui/src/**/*.{ts,tsx}', 'packages/ui/src/**/*.{ts,tsx}'],
        extends: [reactHooks.configs.flat.recommended, reactRefresh.configs.vite],
        languageOptions: {
            globals: globals.browser,
            parserOptions: {
                tsconfigRootDir,
            },
        },
        rules: {
            'prefer-const': 'off',
            'react-refresh/only-export-components': 'off',
            'react-hooks/set-state-in-effect': 'off',
        },
    },
    eslintConfigPrettier,
]);