import eslint from '@eslint/js';
import tseslint from '@typescript-eslint/eslint-plugin';
import tsparser from '@typescript-eslint/parser';
import eslintConfigPrettier from 'eslint-config-prettier';

export default [
  eslint.configs.recommended,
  {
    files: ['src/**/*.ts'],
    languageOptions: {
      parser: tsparser,
      parserOptions: {
        ecmaVersion: 2022,
        sourceType: 'module',
        project: './tsconfig.json',
      },
      globals: {
        process: 'readonly',
        fetch: 'readonly',
        setInterval: 'readonly',
        NodeJS: 'readonly',
      },
    },
    plugins: {
      '@typescript-eslint': tseslint,
    },
    rules: {
      indent: ['error', 2, { SwitchCase: 1 }],
      'max-len': ['error', { code: 140, ignoreUrls: true, ignoreStrings: true }],
      'no-unused-vars': 'off',
      '@typescript-eslint/no-unused-vars': [
        'error',
        {
          argsIgnorePattern: '^_',
          varsIgnorePattern: '^_',
        },
      ],
      '@typescript-eslint/no-explicit-any': 'error',
      '@typescript-eslint/explicit-function-return-type': ['error', { allowExpressions: true }],
      '@typescript-eslint/naming-convention': [
        'error',
        {
          selector: 'variable',
          format: ['camelCase', 'UPPER_CASE'],
          filter: {
            regex: '^__',
            match: false,
          },
        },
        {
          selector: 'function',
          format: ['camelCase'],
        },
        {
          selector: 'typeLike',
          format: ['PascalCase'],
        },
      ],
      'no-console': 'error',
      complexity: 'off',
      'max-lines': 'off',
      'max-statements': 'off',
    },
  },
  {
    name: 'arch/no-fixed-delays',
    rules: {
      'no-restricted-syntax': [
        'error',
        {
          selector: "CallExpression[callee.property.name='waitForTimeout']",
          message:
            '[BANNED] waitForTimeout is a fixed delay. → Subscribe to events instead (eth_newFilter for on-chain, waitForSelector/waitForURL for DOM). → Polling with timeout is acceptable only if no event source exists. → See AGENTS.md #Engineering Principles.',
        },
        {
          selector:
            "NewExpression[callee.name='Promise'] > ArrowFunctionExpression CallExpression[callee.name='setTimeout']",
          message:
            '[BANNED] Promise+setTimeout sleep pattern. → Use event subscription or polling with timeout instead. → See AGENTS.md #Engineering Principles.',
        },
      ],
    },
  },
  eslintConfigPrettier,
];
