.eslintrc.cjs

/*
 * This file uses "@jsenv/eslint-config" to configure ESLint
 * See https://github.com/jsenv/eslint-config#eslint-config----
 */

const {
  composeEslintConfig,
  eslintConfigBase,
  eslintConfigForPrettier,
  eslintConfigToPreferExplicitGlobals,
  jsenvEslintRules,
  jsenvEslintRulesForImport,
} = require("@jsenv/eslint-config")

const eslintConfig = composeEslintConfig(
  eslintConfigBase,

  // use "@babel/eslint-parser" until top level await is supported by ESLint default parser
  {
    parser: "@babel/eslint-parser",
    parserOptions: {
      requireConfigFile: false,
    },
  },

  // Files in this repository are all meant to be executed in Node.js
  // and we want to tell this to ESLint.
  // As a result ESLint can consider `window` as undefined
  // and `global` as an existing global variable.
  {
    env: {
      node: true,
    },
  },

  // Reuse jsenv eslint rules
  {
    rules: {
      ...jsenvEslintRules,
    },
  },

  // Enable import plugin
  {
    plugins: ["import"],
    settings: {
      "import/resolver": {
        // Tell ESLint to use the importmap to resolve imports.
        // Read more in https://github.com/jsenv/importmap-node-module#Configure-vscode-and-eslint-for-importmap
        "@jsenv/importmap-eslint-resolver": {
          projectDirectoryUrl: __dirname,
          importMapFileRelativeUrl: "./node_resolution.importmap",
          node: true,
        },
      },
      "import/extensions": [".js", ".mjs"],
    },
    rules: jsenvEslintRulesForImport,
  },

  // package is "type": "module" so:
  // 1. disable commonjs globals by default
  // 2. Re-enable commonjs into *.cjs files
  {
    globals: {
      __filename: "off",
      __dirname: "off",
      require: "off",
      exports: "off",
    },
    overrides: [
      {
        files: ["**/*.cjs"],
        env: {
          commonjs: true,
        },
        // inside *.cjs files. restore commonJS "globals"
        globals: {
          __filename: true,
          __dirname: true,
          require: true,
          exports: true,
        },

        // inside *.cjs files, use commonjs module resolution
        settings: {
          "import/resolver": {
            node: {},
          },
        },
      },
    ],
  },

  eslintConfigToPreferExplicitGlobals,

  // We are using prettier, disable all eslint rules
  // already handled by prettier.
  eslintConfigForPrettier,
)

module.exports = eslintConfig