chore: add typed ESLint checks #18

Refs WealthLedger/main#18. Keep Biome; add no Prettier dependencies.
2026-09-28 05:52:29 +03:00
parent c1b08735e3
commit 851457e03c
38 changed files with 2914 additions and 155 deletions
@@ -0,0 +1,131 @@
+import js from "@eslint/js";
+import react from "@eslint-react/eslint-plugin";
+import query from "@tanstack/eslint-plugin-query";
+import vitest from "@vitest/eslint-plugin";
+import { defineConfig, globalIgnores } from "eslint/config";
+import { importX } from "eslint-plugin-import-x";
+import hooks from "eslint-plugin-react-hooks";
+import refresh from "eslint-plugin-react-refresh";
+import storybook from "eslint-plugin-storybook";
+import testingLibrary from "eslint-plugin-testing-library";
+import unicorn from "eslint-plugin-unicorn";
+import globals from "globals";
+import tseslint from "typescript-eslint";
+
+export default defineConfig(
+	globalIgnores([
+		"**/dist/**",
+		"dist-ssr/**",
+		"storybook-static/**",
+		"coverage/**",
+		".vitest/**",
+		".scannerwork/**",
+		"src/shared/api/generated/**",
+		"src/shared/api/spec/**",
+	]),
+	{
+		files: ["**/*.{js,mjs,cjs,ts,tsx}"],
+		extends: [js.configs.recommended],
+		linterOptions: { reportUnusedDisableDirectives: "error" },
+	},
+	{
+		files: ["**/*.{js,mjs,cjs}", "**/*.config.ts", ".storybook/main.ts"],
+		languageOptions: { globals: globals.node },
+	},
+	{
+		files: ["**/*.{ts,tsx}"],
+		extends: [tseslint.configs.recommendedTypeChecked],
+		languageOptions: {
+			parserOptions: {
+				projectService: true,
+				tsconfigRootDir: import.meta.dirname,
+			},
+		},
+		rules: {
+			"@typescript-eslint/switch-exhaustiveness-check": "error",
+			// React ignores handler return values; their bodies still check floating promises.
+			"@typescript-eslint/no-misused-promises": [
+				"error",
+				{ checksVoidReturn: { attributes: false } },
+			],
+		},
+	},
+	{
+		files: [
+			"src/**/*.{ts,tsx}",
+			"packages/*/src/**/*.{ts,tsx}",
+			".storybook/preview.tsx",
+		],
+		extends: [
+			react.configs["recommended-type-checked"],
+			react.configs["disable-naming-convention"],
+			hooks.configs.flat.recommended,
+			query.configs["flat/recommended"],
+		],
+		languageOptions: { globals: globals.browser },
+		plugins: { "import-x": importX, unicorn },
+		rules: {
+			// The official hooks plugin owns Compiler and hook diagnostics.
+			"@eslint-react/error-boundaries": "off",
+			"@eslint-react/exhaustive-deps": "off",
+			"@eslint-react/purity": "off",
+			"@eslint-react/rules-of-hooks": "off",
+			"@eslint-react/set-state-in-effect": "off",
+			"@eslint-react/set-state-in-render": "off",
+			"@eslint-react/static-components": "off",
+			"@eslint-react/unsupported-syntax": "off",
+			"@eslint-react/use-memo": "off",
+			// useContext remains supported; a lint rollout does not require an API migration.
+			"@eslint-react/no-use-context": "off",
+			"import-x/no-default-export": "error",
+			"import-x/exports-last": "error",
+			// Biome owns formatting, import sorting and magic numbers during coexistence.
+			"unicorn/no-array-fill-with-reference-type": "error",
+			"unicorn/no-await-in-promise-methods": "error",
+			"unicorn/no-single-promise-in-promise-methods": "error",
+			"unicorn/prefer-array-some": "error",
+			"unicorn/prefer-includes": "error",
+		},
+	},
+	{
+		files: ["src/**/*.tsx", "packages/*/src/**/*.tsx"],
+		ignores: ["**/*.test.tsx", "**/*.stories.tsx", "src/test/**"],
+		extends: [refresh.configs.vite],
+	},
+	{
+		files: ["**/*.test.{ts,tsx}"],
+		extends: [vitest.configs.recommended],
+		rules: {
+			"vitest/no-focused-tests": "error",
+			"vitest/valid-expect": ["error", { maxArgs: 2 }],
+			// it.each cases select different expected outcomes and recovery setup steps.
+			"vitest/no-conditional-expect": "off",
+			// Async test doubles preserve the public Promise contract without artificial awaits.
+			"@typescript-eslint/require-await": "off",
+		},
+	},
+	{
+		files: ["**/*.test.tsx"],
+		plugins: { "testing-library": testingLibrary },
+		// Start with async correctness. DOM structure/geometry tests need direct node access.
+		rules: {
+			"testing-library/await-async-events": "error",
+			"testing-library/await-async-queries": "error",
+			"testing-library/await-async-utils": "error",
+			"testing-library/no-await-sync-events": "error",
+			"testing-library/no-await-sync-queries": "error",
+			"testing-library/no-promise-in-fire-event": "error",
+			"testing-library/no-wait-for-side-effects": "error",
+			"testing-library/no-wait-for-snapshot": "error",
+			"testing-library/prefer-find-by": "error",
+		},
+	},
+	storybook.configs["flat/recommended"],
+	{
+		files: ["**/*.stories.tsx", ".storybook/preview.tsx"],
+		rules: {
+			"import-x/no-default-export": "off",
+			"import-x/exports-last": "off",
+		},
+	},
+);