From e530502c7c5554b8f7c669cbde1bd2175d077a19 Mon Sep 17 00:00:00 2001
From: Santo Cariotti <santo@dcariotti.me>
Date: Tue, 8 Apr 2025 16:27:47 +0200
Subject: Use logger with zap only

---
 internal/logger/logger.go | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 internal/logger/logger.go

(limited to 'internal/logger')

diff --git a/internal/logger/logger.go b/internal/logger/logger.go
new file mode 100644
index 0000000..a5d0264
--- /dev/null
+++ b/internal/logger/logger.go
@@ -0,0 +1,43 @@
+package logger
+
+import (
+	"errors"
+
+	"go.uber.org/zap"
+	"go.uber.org/zap/zapcore"
+	"gopkg.in/natefinch/lumberjack.v2"
+)
+
+var logger *zap.Logger = nil
+
+func InitLogger(logFile string) *zap.Logger {
+	cfg := zap.NewProductionConfig()
+	cfg.OutputPaths = []string{logFile}
+	cfg.ErrorOutputPaths = []string{logFile}
+
+	// Configure lumberjack for log rotation
+	lumberjackLogger := &lumberjack.Logger{
+		Filename:   logFile,
+		MaxSize:    100, // megabytes
+		MaxBackups: 5,
+		MaxAge:     30, // days
+		Compress:   true,
+	}
+
+	core := zapcore.NewCore(
+		zapcore.NewJSONEncoder(cfg.EncoderConfig),
+		zapcore.AddSync(lumberjackLogger), // Log only to the file via lumberjack
+		cfg.Level,
+	)
+
+	logger = zap.New(core)
+
+	return logger
+}
+
+func GetLogger() (*zap.Logger, error) {
+	if logger == nil {
+		return nil, errors.New("You must call `InitLogger()` first.")
+	}
+	return logger, nil
+}
-- 
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