refactor(logger): add individual log module

modules/postLog.go

@@ -0,0 +1,94 @@
+package postLog
+
+import (
+	"fmt"
+	"sync"
+	"time"
+)
+
+var (
+	loggerMutex sync.Mutex
+	debugMode   bool
+)
+
+const (
+	DEBUG = iota
+	INFO
+	WARNING
+	ERROR
+	FATAL
+)
+
+var levelNames = []string{"DEBUG", "INFO", "WARNING", "ERROR", "FATAL"}
+var levelColors = []int{34, 27, 220, 196, 124}
+
+func colorOut_256(s string, foreColor int) string {
+	return fmt.Sprintf("\033[38;5;%dm%s\033[m", foreColor, s)
+}
+
+func getSystemTime() string {
+	now := time.Now()
+	return now.Format("2006-01-02 15:04:05.000")
+}
+
+// SetDebugMode sets the debug mode for the logger
+func SetDebugMode(debug bool) {
+	loggerMutex.Lock()
+	defer loggerMutex.Unlock()
+	debugMode = debug
+}
+
+func PostLog(message string, level int) {
+	timeNow := getSystemTime()
+
+	idx := level
+	if idx < 0 || idx >= len(levelNames) {
+		idx = INFO // default to INFO
+	}
+
+	// Lock to make reading debug flag and all output atomic across threads
+	loggerMutex.Lock()
+	defer loggerMutex.Unlock()
+
+	// Skip DEBUG when debug is off
+	if idx == DEBUG && !debugMode {
+		return
+	}
+
+	// Colored output
+	levelDisplay := colorOut_256(levelNames[idx], levelColors[idx])
+
+	switch idx {
+	case DEBUG:
+		fmt.Printf("[%s - %s] %s\n", timeNow, levelDisplay, message)
+	case INFO:
+		fmt.Printf("[%s - %s] %s\n", timeNow, levelDisplay, message)
+	case WARNING:
+		fmt.Printf("[%s - %s] %s\n", timeNow, levelDisplay, message)
+	case ERROR:
+		fmt.Printf("[%s - %s] %s\n", timeNow, levelDisplay, message)
+	case FATAL:
+		fmt.Printf("[%s - %s] %s\n", timeNow, levelDisplay, message)
+	}
+}
+
+// Helper functions for different log levels
+func Debug(message string) {
+	PostLog(message, DEBUG)
+}
+
+func Info(message string) {
+	PostLog(message, INFO)
+}
+
+func Warning(message string) {
+	PostLog(message, WARNING)
+}
+
+func Error(message string) {
+	PostLog(message, ERROR)
+}
+
+func Fatal(message string) {
+	PostLog(message, FATAL)
+}