#ifndef PKE_CAMERA_HPP
#define PKE_CAMERA_HPP

#include "macros.hpp"
#include "vendor/glm_include.hpp"
#include "memory-type-defs.hpp"

#include <cstdint>

TypeSafeInt_Const_Expr(PkeCameraType, uint8_t, 0xFF);
TypeSafeInt_Const_Expr(PkeCameraOrientation, uint8_t, 0xFF);
TypeSafeInt_Const_Expr(PkeCameraStaleFlags, uint8_t, 0xFF);

struct CameraHandle : public PkeHandle {};

constexpr CameraHandle CameraHandle_MAX = CameraHandle{};

const PkeCameraType PKE_CAMERA_TYPE_PERSPECTIVE = PkeCameraType{1 << 0};
const PkeCameraType PKE_CAMERA_TYPE_ORTHOGONAL  = PkeCameraType{1 << 1};

const PkeCameraOrientation PKE_CAMERA_ORIENTATION_TARGET = PkeCameraOrientation{1 << 0};
const PkeCameraOrientation PKE_CAMERA_ORIENTATION_FREE   = PkeCameraOrientation{1 << 1};

const PkeCameraStaleFlags PKE_CAMERA_STALE_POS         = PkeCameraStaleFlags{1 << 0};
const PkeCameraStaleFlags PKE_CAMERA_STALE_ROT         = PkeCameraStaleFlags{1 << 1};
const PkeCameraStaleFlags PKE_CAMERA_STALE_ORIENTATION = PkeCameraStaleFlags{1 << 2};
const PkeCameraStaleFlags PKE_CAMERA_STALE_ALL         = PkeCameraStaleFlags{0xFF};

struct PkeCamera {
	CameraHandle handle = CameraHandle_MAX;
	glm::vec3 pos = glm::vec3(0);
	glm::quat rot = glm::quat{};
	glm::vec3 target = glm::vec3(0);
	PkeCameraType type = PkeCameraType_MAX;
	PkeCameraOrientation orientation = PkeCameraOrientation_MAX;
	PkeCameraStaleFlags stale = PkeCameraStaleFlags_MAX;
	bool isPrimary = false;
};
extern PkeCamera NullCamera;
extern PkeCamera *ActiveCamera;

void PkeCamera_Init();
PkeCamera &PkeCamera_Register();
PkeCamera *PkeCamera_Get(CameraHandle handle);
int64_t PkeCamera_GetBucketCount();
PkeCamera *PkeCamera_GetCameras(int64_t bucketIndex, int64_t &count);
void PkeCamera_Destroy(CameraHandle handle);
void PkeCamera_Teardown();

void PkeCamera_Unregister(uint64_t id);

#endif /* PKE_CAMERA_HPP */