eslint.config.mjs

import { defineConfig, globalIgnores } from "eslint/config";
import nextVitals from "eslint-config-next/core-web-vitals";
import nextTs from "eslint-config-next/typescript";
import vitest from "@vitest/eslint-plugin";

const eslintConfig = defineConfig([
  ...nextVitals,
  ...nextTs,
  // Override default ignores of eslint-config-next.
  globalIgnores([
    // Default ignores of eslint-config-next:
    ".next/**",
    "out/**",
    "build/**",
    "next-env.d.ts",
    "coverage/**",
  ]),
  {
    linterOptions: {
      noInlineConfig: true,
      reportUnusedDisableDirectives: "error",
    },
    rules: {
      "@typescript-eslint/no-unused-vars": [
        "error",
        {
          argsIgnorePattern: "^_",
          varsIgnorePattern: "^_",
          caughtErrorsIgnorePattern: "^_",
        },
      ],
    },
  },
  {
    files: ["**/*.test.ts", "**/*.test.tsx"],
    plugins: {
      vitest,
    },
    languageOptions: {
      globals: {
        ...vitest.environments.env.globals,
      },
      parserOptions: {
        project: true,
        tsconfigRootDir: import.meta.dirname,
      },
    },
    settings: {
      vitest: {
        typecheck: true,
      },
    },
    rules: {
      ...vitest.configs.recommended.rules,
      "vitest/expect-expect": "off",
      "no-restricted-syntax": [
        "error",
        {
          selector: "TryStatement",
          message:
            "try-catch statements are not allowed in test files. Properly assert error expectations.",
        },
      ],
    },
  },
]);

export default eslintConfig;