application.hpp

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#pragma once
 
#include <spdlog/spdlog.h>
 
#include <memory>
#include <tl/expected.hpp>
 
#include "context.hpp"
#include "wren/renderer.hpp"
 
namespace wren {
 
enum class CallbackPhase { Startup, Update, Shutdown };
 
using phase_cb_t = std::function<void()>;
 
class Application {
 public:
  enum class errors {};
 
  static auto Create(std::string const &application_name)
      -> expected<std::shared_ptr<Application>>;
 
  auto context() -> std::shared_ptr<Context> const & { return ctx; }
  void run();
 
  void add_callback_to_phase(CallbackPhase phase,
                             phase_cb_t const &cb);
 
 private:
  explicit Application(std::shared_ptr<Context> const &ctx,
                       std::shared_ptr<Renderer> const &renderer);
 
  std::shared_ptr<Context> ctx;
  std::shared_ptr<Renderer> renderer;
 
  std::vector<phase_cb_t> startup_phase;
  std::vector<phase_cb_t> update_phase;
  std::vector<phase_cb_t> shutdown_phase;
 
  bool running;
};
 
}  // namespace wren