import { Hono } from "hono";
import { requestLogger } from "@atbb/logger/middleware";
import { createApiRoutes } from "../routes/index.js";
import type { AppContext } from "./app-context.js";

/**
 * Create the Hono application with routes and middleware.
 * Routes can access the database and other services via the injected context.
 */
export function createApp(ctx: AppContext) {
  const app = new Hono();

  app.use("*", requestLogger(ctx.logger));

  // Global error handler for unhandled errors
  app.onError((err, c) => {
    ctx.logger.error("Unhandled error in route handler", {
      path: c.req.path,
      method: c.req.method,
      error: err.message,
      stack: err.stack,
    });

    return c.json(
      {
        error: "An internal error occurred. Please try again later.",
        ...(process.env.NODE_ENV !== "production" && {
          details: err.message,
        }),
      },
      500
    );
  });

  // OAuth client metadata endpoint
  // Serve metadata from the OAuth client library
  app.get("/.well-known/oauth-client-metadata", (c) => {
    return c.json(ctx.oauthClient.clientMetadata);
  });

  app.route("/api", createApiRoutes(ctx));

  return app;
}