feat: set up some configs

src/index.ts

@@ -1,6 +1,11 @@
-import type {Linter} from "@typescript-eslint/utils/ts-eslint";
+import type {FlatConfig, Linter} from "@typescript-eslint/utils/ts-eslint";
 import configs from "./configs";
 import rules from "./rules";
+import {TSESLint} from "@typescript-eslint/utils";
+import * as parserBase from "@typescript-eslint/parser";
+import pluginBase from "@typescript-eslint/eslint-plugin";
+
+// Most of this is copied and simplified from https://github.com/typescript-eslint/typescript-eslint/blob/v8.22.0/packages/typescript-eslint/src/configs/recommended.ts
 
 // note - cannot migrate this to an import statement because it will make TSC copy the package.json to the dist folder
 // eslint-disable-next-line @typescript-eslint/no-require-imports
@@ -12,12 +17,64 @@ const meta = {
     name,
     version,
 };
+export const parser: TSESLint.FlatConfig.Parser = {
+    meta: parserBase.meta,
+    parseForESLint: parserBase.parseForESLint,
+};
 
-export default {
+export const plugin: TSESLint.FlatConfig.Plugin = pluginBase as Omit<
+    typeof pluginBase,
+    "configs"
+>;
+const classicPlugin = {
     configs: {
         recommended: configs.recommended,
         "no-swagger": configs["no-swagger"],
     },
     rules,
     meta,
 } satisfies Linter.Plugin;
+
+export function flatBaseConfig(
+    plugin: FlatConfig.Plugin,
+    parser: FlatConfig.Parser
+): FlatConfig.Config {
+    return {
+        name: "@darraghor/nestjs-typed/base",
+        languageOptions: {
+            parser,
+            sourceType: "module",
+        },
+        plugins: {
+            "@darraghor/nestjs-typed": plugin,
+        },
+    };
+}
+
+export function flatRecommendedConfig(
+    plugin: FlatConfig.Plugin,
+    parser: FlatConfig.Parser
+): FlatConfig.ConfigArray {
+    return [
+        flatBaseConfig(plugin, parser),
+        {
+            name: "@darraghor/nestjs-typed/recommended",
+            rules: configs.recommended.rules,
+        },
+    ];
+}
+export function flatNoSwaggerConfig(): FlatConfig.ConfigArray {
+    return [
+        {
+            name: "@darraghor/nestjs-typed/recommended",
+            rules: configs.recommended.rules,
+        },
+    ];
+}
+const flatRecommended = flatRecommendedConfig(plugin, parser);
+const flatNoSwagger = flatNoSwaggerConfig();
+// export the flat configs
+export {flatRecommended, flatNoSwagger};
+
+// export the classic plugin so people can use it in their eslint configs
+export default classicPlugin;