import { eventHandler, getRequestURL } from "h3";
import { joinURL } from "ufo";
import { defu } from "defu";
import { handlersMeta } from "#nitro-internal-virtual/server-handlers-meta";
import { useRuntimeConfig } from "../config.mjs";
export default eventHandler((event) => {
  const runtimeConfig = useRuntimeConfig(event);
  const base = runtimeConfig.app?.baseURL;
  const url = joinURL(getRequestURL(event).origin, base);
  const meta = {
    title: "Nitro Server Routes",
    ...runtimeConfig.nitro?.openAPI?.meta
  };
  const {
    paths,
    globals: { components, ...globalsRest }
  } = getHandlersMeta();
  const extensible = Object.fromEntries(
    Object.entries(globalsRest).filter(([key]) => key.startsWith("x-"))
  );
  return {
    openapi: "3.1.0",
    info: {
      title: meta?.title,
      version: meta?.version,
      description: meta?.description
    },
    servers: [
      {
        url,
        description: "Local Development Server",
        variables: {}
      }
    ],
    paths,
    components,
    ...extensible
  };
});
function getHandlersMeta() {
  const paths = {};
  let globals = {};
  for (const h of handlersMeta) {
    const { route, parameters } = normalizeRoute(h.route || "");
    const tags = defaultTags(h.route || "");
    const method = (h.method || "get").toLowerCase();
    const { $global, ...openAPI } = h.meta?.openAPI || {};
    const item = {
      [method]: {
        tags,
        parameters,
        responses: {
          200: { description: "OK" }
        },
        ...openAPI
      }
    };
    if ($global) {
      globals = defu($global, globals);
    }
    if (paths[route] === void 0) {
      paths[route] = item;
    } else {
      Object.assign(paths[route], item);
    }
  }
  return { paths, globals };
}
function normalizeRoute(_route) {
  const parameters = [];
  let anonymousCtr = 0;
  const route = _route.replace(/:(\w+)/g, (_, name) => `{${name}}`).replace(/\/(\*)\//g, () => `/{param${++anonymousCtr}}/`).replace(/\*\*{/, "{").replace(/\/(\*\*)$/g, () => `/{*param${++anonymousCtr}}`);
  const paramMatches = route.matchAll(/{(\*?\w+)}/g);
  for (const match of paramMatches) {
    const name = match[1];
    if (!parameters.some((p) => p.name === name)) {
      parameters.push({
        name,
        in: "path",
        required: true,
        schema: { type: "string" }
      });
    }
  }
  return {
    route,
    parameters
  };
}
function defaultTags(route) {
  const tags = [];
  if (route.startsWith("/api/")) {
    tags.push("API Routes");
  } else if (route.startsWith("/_")) {
    tags.push("Internal");
  } else {
    tags.push("App Routes");
  }
  return tags;
}