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#pragma once
#include "../defines.hpp"
#include <unordered_map>
#include <any>
#include <array>
#include <list>
#include <csetjmp>
#include "../plugins/PluginAPI.hpp"
// global typedef for hooked functions. Passes itself as a ptr when called, and `data` additionally.
typedef std::function<void(void*, std::any)> HOOK_CALLBACK_FN;
struct SCallbackFNPtr {
HOOK_CALLBACK_FN* fn = nullptr;
HANDLE handle = nullptr;
};
#define EMIT_HOOK_EVENT(name, param) \
{ \
static auto* const PEVENTVEC = g_pHookSystem->getVecForEvent(name); \
g_pHookSystem->emit(PEVENTVEC, param); \
}
class CHookSystemManager {
public:
CHookSystemManager();
// returns the pointer to the function
HOOK_CALLBACK_FN* hookDynamic(const std::string& event, HOOK_CALLBACK_FN fn, HANDLE handle = nullptr);
void hookStatic(const std::string& event, HOOK_CALLBACK_FN* fn, HANDLE handle = nullptr);
void unhook(HOOK_CALLBACK_FN* fn);
void emit(const std::vector<SCallbackFNPtr>* callbacks, std::any data = 0);
std::vector<SCallbackFNPtr>* getVecForEvent(const std::string& event);
bool m_bCurrentEventPlugin = false;
jmp_buf m_jbHookFaultJumpBuf;
private:
// todo: this is slow. Maybe static ptrs should be somehow allowed. unique ptr for vec?
std::list<std::pair<std::string, std::vector<SCallbackFNPtr>>> m_lpRegisteredHooks;
std::list<HOOK_CALLBACK_FN> m_lCallbackFunctions;
};
inline std::unique_ptr<CHookSystemManager> g_pHookSystem;
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