perf: remove lc dependency

pkg/logger.go

@@ -0,0 +1,93 @@
+package pkg
+
+import (
+	"context"
+
+	"github.com/mattn/go-colorable"
+	"go.uber.org/zap"
+	"go.uber.org/zap/zapcore"
+	"gopkg.in/natefinch/lumberjack.v2"
+)
+
+type LoggerConfig struct {
+	Level           zapcore.Level
+	Filename        string
+	MaxSize         int
+	MaxAge          int
+	MaxBackups      int
+	Compress        bool
+	ConsoleEncoding bool // true for Console output, false for JSON
+}
+
+var loggerInstance *zap.Logger
+
+// GetLogger returns a singleton logger instance
+func GetLogger(ctx context.Context, config LoggerConfig) *zap.Logger {
+	if loggerInstance == nil {
+		createOrUpdateInstance(config)
+	}
+	return loggerInstance
+}
+
+func createOrUpdateInstance(config LoggerConfig) *zap.Logger {
+	core := zapcore.NewTee(
+		createFileCore(config),
+		createStdoutCore(config),
+	)
+	loggerInstance = zap.New(core, zap.AddCaller()).WithOptions(
+		zap.IncreaseLevel(config.Level),
+	)
+	return loggerInstance
+}
+
+// createFileCore creates the file logging core
+func createFileCore(config LoggerConfig) zapcore.Core {
+	fileEncoderConfig := zap.NewProductionEncoderConfig()
+	fileEncoder := zapcore.NewJSONEncoder(fileEncoderConfig)
+
+	fileWriteSyncer := zapcore.AddSync(&lumberjack.Logger{
+		Filename:   config.Filename,
+		MaxSize:    config.MaxSize,
+		MaxAge:     config.MaxAge,
+		MaxBackups: config.MaxBackups,
+		Compress:   config.Compress,
+	})
+
+	return zapcore.NewCore(fileEncoder, fileWriteSyncer, zap.LevelEnablerFunc(func(lvl zapcore.Level) bool {
+		return lvl >= zapcore.ErrorLevel
+	}))
+}
+
+// createStdoutCore creates the stdout logging core based on config.ConsoleEncoding
+func createStdoutCore(config LoggerConfig) zapcore.Core {
+	var encoder zapcore.Encoder
+	encoderConfig := zap.NewDevelopmentEncoderConfig()
+	encoderConfig.EncodeLevel = zapcore.CapitalColorLevelEncoder
+	encoderConfig.TimeKey = ""
+
+	if config.ConsoleEncoding {
+		encoder = zapcore.NewConsoleEncoder(encoderConfig)
+	} else {
+		encoder = zapcore.NewJSONEncoder(encoderConfig)
+	}
+
+	stdoutWriteSyncer := zapcore.AddSync(colorable.NewColorableStdout())
+
+	return zapcore.NewCore(encoder, stdoutWriteSyncer, zap.LevelEnablerFunc(func(lvl zapcore.Level) bool {
+		return true
+	}))
+}
+
+func OverrideLoggerConfig(config LoggerConfig) {
+	Logger = createOrUpdateInstance(config)
+}
+
+var Logger = GetLogger(context.Background(), LoggerConfig{
+	Level:           zap.DebugLevel,
+	Filename:        "./tmp/error.log",
+	MaxSize:         100,
+	MaxAge:          90,
+	MaxBackups:      30,
+	Compress:        true,
+	ConsoleEncoding: true,
+})