From 60b38f632e4d6e9416630de6120dafcac613a698 Mon Sep 17 00:00:00 2001
From: Frederico Linhares <fred@linhares.blue>
Date: Wed, 3 Aug 2022 15:25:29 -0300
Subject: feat Create a log system

---
 src/core.cpp | 77 ++++++++++++++++++++++++++++++++++++++++++------------------
 1 file changed, 54 insertions(+), 23 deletions(-)

(limited to 'src/core.cpp')

diff --git a/src/core.cpp b/src/core.cpp
index 7e13f75..30acbf9 100644
--- a/src/core.cpp
+++ b/src/core.cpp
@@ -16,7 +16,9 @@
 
 #include "core.hpp"
 
-#include <iostream>
+#ifdef DEBUG
+#include <sstream>
+#endif
 
 #include <yaml-cpp/yaml.h>
 
@@ -31,21 +33,19 @@ vk_debug_callback(
   const VkDebugUtilsMessengerCallbackDataEXT* callback_data,
   void* _obj)
 {
-  // Print message severy code.
-  std::cout << "[\e[1;0mVK\e[0;0m ";
+  // Set level.
+  Log::Level log_level;
   if(message_severity & VK_DEBUG_UTILS_MESSAGE_SEVERITY_VERBOSE_BIT_EXT)
-    std::cout << "\e[1;32mV\e[0;0m";
+    log_level = Log::Level::Trace;
   else if(message_severity & VK_DEBUG_UTILS_MESSAGE_SEVERITY_INFO_BIT_EXT)
-    std::cout << "\e[1;34mI\e[0;0m";
+    log_level = Log::Level::Information;
   else if(message_severity & VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT)
-    std::cout << "\e[1;33mW\e[0;0m";
+    log_level = Log::Level::Warning;
   else if(message_severity & VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT)
-    std::cout << "\e[1;31mE\e[0;0m";
-
-  std::cout << "]";
+    log_level = Log::Level::Error;
 
   // Log message.
-  std::cout << callback_data->pMessage << std::endl;
+  cg_core.log.message(log_level, callback_data->pMessage);
 
   return VK_FALSE;
 }
@@ -226,9 +226,13 @@ load_vk_instance(void *obj)
     }
 
 #ifdef DEBUG
-    std::cout << "Enabled VK extensions." << std::endl;
+    cg_core.log.message(Log::Level::Trace, "Enabled VK extensions.");
     for(auto vk_extension: vk_extensions)
-      std::cout << "Extension name: " << vk_extension << std::endl;
+    {
+      std::string message{"Extension name: "};
+      message += vk_extension;
+      cg_core.log.message(Log::Level::Trace, message);
+    }
 #endif
   }
 
@@ -244,19 +248,20 @@ load_vk_instance(void *obj)
 				       vk_available_layers.data());
     vk_available_layers_names.resize(vk_available_layers_count);
 #ifdef DEBUG
-    std::cout << "Available VK instance layers." << std::endl;
+    cg_core.log.message(Log::Level::Trace, "Available VK instance layers.");
 #endif
     for(uint32_t i = 0; i < vk_available_layers_count; i++)
     {
 #ifdef DEBUG
-	std::cout << "\nname: " << vk_available_layers[i].layerName <<
-	  std::endl;
-	std::cout << "Description: " << vk_available_layers[i].description <<
-	  std::endl;
-	std::cout << "Spec version: " << vk_available_layers[i].specVersion <<
-	  std::endl;
-	std::cout << "Implementation version: " <<
-	  vk_available_layers[i].implementationVersion << std::endl;
+      std::stringstream message{};
+      message << "\nname: " << vk_available_layers[i].layerName << std::endl;
+      message << "Description: " << vk_available_layers[i].description <<
+	std::endl;
+      message << "Spec version: " << vk_available_layers[i].specVersion <<
+	std::endl;
+      message << "Implementation version: " <<
+	vk_available_layers[i].implementationVersion << std::endl;
+      cg_core.log.message(Log::Level::Trace, message.str());
 #endif
 
       vk_available_layers_names[i] = vk_available_layers[i].layerName;
@@ -402,7 +407,7 @@ load_vk_devices(void *obj)
   }
 
 #ifdef DEBUG
-  std::cout << "Physical devices properties" << std::endl;
+  cg_core.log.message(Log::Level::Trace, "Physical devices properties");
 #endif
 
   cg_core.vk_devices.reserve(devices_count);
@@ -462,6 +467,30 @@ unload_vk_graphics_pipeline(void *obj)
   delete cg_core.vk_graphics_pipeline;
 }
 
+static void
+load_mruby(void *obj)
+{
+  cg_core.mrb = mrb_open();
+  if (!cg_core.mrb) throw CommandError{"Failed to initialize mruby."};
+}
+
+static void
+unload_mruby(void *obj)
+{
+  mrb_close(cg_core.mrb);
+}
+
+static void
+load_mruby_symbols(void *obj)
+{
+  cg_core.sym_fatal = mrb_intern_cstr(cg_core.mrb, "fatal");
+  cg_core.sym_error = mrb_intern_cstr(cg_core.mrb, "error");
+  cg_core.sym_warning = mrb_intern_cstr(cg_core.mrb, "warning");
+  cg_core.sym_information = mrb_intern_cstr(cg_core.mrb, "information");
+  cg_core.sym_debug = mrb_intern_cstr(cg_core.mrb, "debug");
+  cg_core.sym_trace = mrb_intern_cstr(cg_core.mrb, "trace");
+}
+
 const CommandChain cg_sCore::loader{
   {&load_variables, &unload_variables},
   {&load_sdl, &unload_sdl},
@@ -476,5 +505,7 @@ const CommandChain cg_sCore::loader{
 #endif
   {&load_vk_devices, &unload_vk_devices},
   {&load_vk_swapchain, &unload_vk_swapchain},
-  {&load_vk_graphics_pipeline, &unload_vk_graphics_pipeline}
+  {&load_vk_graphics_pipeline, &unload_vk_graphics_pipeline},
+  {&load_mruby, &unload_mruby},
+  {&load_mruby_symbols, nullptr}
 };
-- 
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