From 1b56cc4e99c391a94fc05a24e1f71c8e425168f1 Mon Sep 17 00:00:00 2001
From: Vaxry <43317083+vaxerski@users.noreply.github.com>
Date: Sun, 19 Feb 2023 20:54:53 +0000
Subject: Added an Event Hook System (#1578)

* added an eventHookSystem

* Add all socket2 events to hooks
---
 src/managers/HookSystemManager.cpp | 44 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 src/managers/HookSystemManager.cpp

(limited to 'src/managers/HookSystemManager.cpp')

diff --git a/src/managers/HookSystemManager.cpp b/src/managers/HookSystemManager.cpp
new file mode 100644
index 00000000..02775a24
--- /dev/null
+++ b/src/managers/HookSystemManager.cpp
@@ -0,0 +1,44 @@
+#include "HookSystemManager.hpp"
+
+CHookSystemManager::CHookSystemManager() {
+    ; //
+}
+
+// returns the pointer to the function
+HOOK_CALLBACK_FN* CHookSystemManager::hookDynamic(const std::string& event, HOOK_CALLBACK_FN fn) {
+    const auto PVEC = getVecForEvent(event);
+    const auto PFN  = &m_lCallbackFunctions.emplace_back(fn);
+    PVEC->emplace_back(PFN);
+    return PFN;
+}
+
+void CHookSystemManager::hookStatic(const std::string& event, HOOK_CALLBACK_FN* fn) {
+    const auto PVEC = getVecForEvent(event);
+    PVEC->emplace_back(fn);
+}
+
+void CHookSystemManager::unhook(HOOK_CALLBACK_FN* fn) {
+    std::erase_if(m_lCallbackFunctions, [&](const auto& other) { return &other == fn; });
+    for (auto& [k, v] : m_lpRegisteredHooks) {
+        std::erase_if(v, [&](const auto& other) { return other == fn; });
+    }
+}
+
+void CHookSystemManager::emit(const std::vector<HOOK_CALLBACK_FN*>* callbacks, std::any data) {
+    if (callbacks->empty())
+        return;
+
+    for (auto& cb : *callbacks)
+        (*cb)(cb, data);
+}
+
+std::vector<HOOK_CALLBACK_FN*>* CHookSystemManager::getVecForEvent(const std::string& event) {
+    auto IT = std::find_if(m_lpRegisteredHooks.begin(), m_lpRegisteredHooks.end(), [&](const auto& other) { return other.first == event; });
+
+    if (IT != m_lpRegisteredHooks.end())
+        return &IT->second;
+
+    Debug::log(LOG, "[hookSystem] New hook event registered: %s", event.c_str());
+
+    return &m_lpRegisteredHooks.emplace_back(std::make_pair<>(event, std::vector<HOOK_CALLBACK_FN*>{})).second;
+}
\ No newline at end of file
-- 
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