From c9b6b9a5ca082fe7c1b6f58d7713f785a9eb6a5c Mon Sep 17 00:00:00 2001
From: Martial Simon <msimon_fr@hotmail.com>
Date: Mon, 15 Sep 2025 01:08:27 +0200
Subject: add: graphs et rushs

---
 graphs/cpp/logger/CMakeLists.txt |  8 +++++
 graphs/cpp/logger/logger.cc      | 73 ++++++++++++++++++++++++++++++++++++++++
 graphs/cpp/logger/logger.hh      | 47 ++++++++++++++++++++++++++
 graphs/cpp/logger/main.cc        | 13 +++++++
 4 files changed, 141 insertions(+)
 create mode 100644 graphs/cpp/logger/CMakeLists.txt
 create mode 100644 graphs/cpp/logger/logger.cc
 create mode 100644 graphs/cpp/logger/logger.hh
 create mode 100644 graphs/cpp/logger/main.cc

(limited to 'graphs/cpp/logger')

diff --git a/graphs/cpp/logger/CMakeLists.txt b/graphs/cpp/logger/CMakeLists.txt
new file mode 100644
index 0000000..3a705e9
--- /dev/null
+++ b/graphs/cpp/logger/CMakeLists.txt
@@ -0,0 +1,8 @@
+cmake_minimum_required(VERSION 3.21.2)
+project(logger)
+
+add_compile_options(-Wall -Wextra -Werror -pedantic -std=c++20 -Wold-style-cast)
+
+add_library(logger_a SHARED logger.cc)
+add_executable(logger main.cc)
+target_link_libraries(logger PUBLIC logger_a)
\ No newline at end of file
diff --git a/graphs/cpp/logger/logger.cc b/graphs/cpp/logger/logger.cc
new file mode 100644
index 0000000..fa2fed1
--- /dev/null
+++ b/graphs/cpp/logger/logger.cc
@@ -0,0 +1,73 @@
+#include "logger.hh"
+
+#include <iostream>
+#include <string>
+
+void LogMe::Logger::set_debug_level(logging_level level)
+{
+    level_ = level;
+}
+void LogMe::Logger::log(logging_level level, const std::string& msg)
+{
+    if (level_ >= level)
+    {
+        switch (level)
+        {
+        case DEBUG:
+            debug(msg);
+            break;
+        case INFO:
+            info(msg);
+            break;
+        case WARN:
+            warn(msg);
+            break;
+        case CRITICAL:
+            critical(msg);
+            break;
+        case ERROR:
+            error(msg);
+            break;
+        }
+    }
+}
+
+void LogMe::Logger::debug(const std::string& msg)
+{
+    if (!output_stream_.is_open())
+        std::cerr << "[DEBUG] - " << msg << "\n";
+    else
+        output_stream_ << "[DEBUG] - " << msg << "\n";
+}
+
+void LogMe::Logger::info(const std::string& msg)
+{
+    if (!output_stream_.is_open())
+        std::cerr << "[INFO] - " << msg << "\n";
+    else
+        output_stream_ << "[INFO] - " << msg << "\n";
+}
+
+void LogMe::Logger::warn(const std::string& msg)
+{
+    if (!output_stream_.is_open())
+        std::cerr << "[WARN] - " << msg << "\n";
+    else
+        output_stream_ << "[WARN] - " << msg << "\n";
+}
+
+void LogMe::Logger::error(const std::string& msg)
+{
+    if (!output_stream_.is_open())
+        std::cerr << "[ERROR] - " << msg << "\n";
+    else
+        output_stream_ << "[ERROR] - " << msg << "\n";
+}
+
+void LogMe::Logger::critical(const std::string& msg)
+{
+    if (!output_stream_.is_open())
+        std::cerr << "[CRITICAL] - " << msg << "\n";
+    else
+        output_stream_ << "[CRITICAL] - " << msg << "\n";
+}
\ No newline at end of file
diff --git a/graphs/cpp/logger/logger.hh b/graphs/cpp/logger/logger.hh
new file mode 100644
index 0000000..4b3a43b
--- /dev/null
+++ b/graphs/cpp/logger/logger.hh
@@ -0,0 +1,47 @@
+#pragma once
+#include <fstream>
+#include <string>
+
+namespace LogMe
+{
+    enum logging_level
+    {
+        DEBUG,
+        INFO,
+        WARN,
+        ERROR,
+        CRITICAL
+    };
+    class Logger
+    {
+    public:
+        Logger(logging_level level, const std::string& log_file)
+            : level_{ level }
+        {
+            output_stream_.open(log_file);
+        }
+        Logger(logging_level level)
+            : level_{ level }
+        {}
+
+        ~Logger()
+        {
+            if (output_stream_.is_open())
+            {
+                output_stream_.close();
+            }
+        }
+
+        void set_debug_level(logging_level level);
+        void log(logging_level level, const std::string& msg);
+        void debug(const std::string& msg);
+        void info(const std::string& msg);
+        void warn(const std::string& msg);
+        void critical(const std::string& msg);
+        void error(const std::string& msg);
+
+    private:
+        logging_level level_;
+        std::ofstream output_stream_;
+    };
+} // namespace LogMe
diff --git a/graphs/cpp/logger/main.cc b/graphs/cpp/logger/main.cc
new file mode 100644
index 0000000..483ffdd
--- /dev/null
+++ b/graphs/cpp/logger/main.cc
@@ -0,0 +1,13 @@
+#include <iostream>
+
+#include "logger.hh"
+
+int main()
+{
+    LogMe::Logger logger{ LogMe::INFO };
+    logger.log(LogMe::INFO, "Program starting.");
+    std::cout << "Hello, World!" << std::endl;
+    logger.log(LogMe::ERROR, "Error log.");
+    logger.log(LogMe::DEBUG, "Program end.");
+    return 0;
+}
\ No newline at end of file
-- 
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