VWeb/Includes/Router.h

#pragma once

#include "Route.h"

#include <functional>
#include <vector>

namespace VWeb {
typedef std::function<bool(Request &, Response &)> RouteFunction;
typedef std::function<std::shared_ptr<Route>()> RouteInstaniateFunction;

class Router {
public:
  Router();
  void DeleteRoute(const std::string &name);

  Ref<Response> HandleRoute(Ref<Request> &request);
  Ref<Route> FindRoute(Ref<Request> &request);
  static void AddToArgs(Ref<Request> &request, std::vector<std::string> &items);

  template <typename T>
  void Register(const std::string &endpoint, HttpMethod allowedMethod) {
    Register<T>(endpoint, static_cast<uint32_t>(allowedMethod));
  }

  template <typename T>
  void
  Register(const std::string &endpoint,
           uint32_t allowedMethods = static_cast<uint32_t>(HttpMethod::ALL)) {
    static_assert(std::is_base_of_v<Route, T>, "must be a Route");
    allowedMethods |= HttpMethod::HEAD | HttpMethod::OPTIONS;
    m_Routes[endpoint] = {.AllowedMethods = allowedMethods,
                          .Instaniate = [] { return std::make_shared<T>(); }};
  }

  void Get(const std::string &path, RouteFunction);
  void Post(const std::string &path, RouteFunction);
  void Put(const std::string &path, RouteFunction);
  void Patch(const std::string &path, RouteFunction);
  void Delete(const std::string &path, RouteFunction);

private:
  struct RouteInstance {
    uint32_t AllowedMethods = HttpMethod::OPTIONS | HttpMethod::HEAD;
    RouteInstaniateFunction Instaniate;
  };
  std::unordered_map<std::string, RouteInstance> m_Routes;
  std::unordered_map<std::string, RouteFunction> m_FunctionRoutes;
};
} // namespace VWeb