import AuthenticationServiceHandler from "./Service/Authentication";
import DataTypeServiceHandler from "./Service/DataType";
import ErrorServiceHandler from "./Service/Errors";
import IntroductionServiceHandler from "./Service/Introduction";
import ModelServiceHandler from "./Service/Model";
import PageNotFoundServiceHandler from "./Service/PageNotFound";
import PaginationServiceHandler from "./Service/Pagination";
import PermissionServiceHandler from "./Service/Permissions";
import StatusServiceHandler from "./Service/Status";
import { StaticPath } from "./Utils/Config";
import ResourceUtil, { ModelDocumentation } from "./Utils/Resources";
import Dictionary from "Common/Types/Dictionary";
import FeatureSet from "Common/Server/Types/FeatureSet";
import Express, {
  ExpressApplication,
  ExpressRequest,
  ExpressResponse,
  ExpressStatic,
} from "Common/Server/Utils/Express";

const APIReferenceFeatureSet: FeatureSet = {
  init: async (): Promise<void> => {
    const ResourceDictionary: Dictionary<ModelDocumentation> =
      ResourceUtil.getResourceDictionaryByPath();

    const app: ExpressApplication = Express.getExpressApp();

    // Serve static files for the API reference with a cache max age of 30 days
    app.use("/reference", ExpressStatic(StaticPath, { maxAge: 2592000 }));

    // Redirect index page to the introduction page
    app.get(["/reference"], (_req: ExpressRequest, res: ExpressResponse) => {
      return res.redirect("/reference/introduction");
    });

    // Handle "Page Not Found" page
    app.get(
      ["/reference/page-not-found"],
      (req: ExpressRequest, res: ExpressResponse) => {
        return PageNotFoundServiceHandler.executeResponse(req, res);
      },
    );

    // Handle all other pages based on the "page" parameter
    app.get(
      ["/reference/:page"],
      (req: ExpressRequest, res: ExpressResponse) => {
        const page: string | undefined = req.params["page"];

        if (!page) {
          return PageNotFoundServiceHandler.executeResponse(req, res);
        }

        const currentResource: ModelDocumentation | undefined =
          ResourceDictionary[page];

        // Execute the appropriate service handler based on the "page" parameter
        if (req.params["page"] === "permissions") {
          return PermissionServiceHandler.executeResponse(req, res);
        } else if (req.params["page"] === "authentication") {
          return AuthenticationServiceHandler.executeResponse(req, res);
        } else if (req.params["page"] === "pagination") {
          return PaginationServiceHandler.executeResponse(req, res);
        } else if (req.params["page"] === "errors") {
          return ErrorServiceHandler.executeResponse(req, res);
        } else if (req.params["page"] === "introduction") {
          return IntroductionServiceHandler.executeResponse(req, res);
        } else if (req.params["page"] === "status") {
          return StatusServiceHandler.executeResponse(req, res);
        } else if (req.params["page"] === "data-types") {
          return DataTypeServiceHandler.executeResponse(req, res);
        } else if (currentResource) {
          return ModelServiceHandler.executeResponse(req, res);
        }
        // page not found
        return PageNotFoundServiceHandler.executeResponse(req, res);
      },
    );

    app.get("/reference/*", (req: ExpressRequest, res: ExpressResponse) => {
      return PageNotFoundServiceHandler.executeResponse(req, res);
    });
  },
};

export default APIReferenceFeatureSet;