move config & logging packages into internal submodules

internal/logging/logging.go

@@ -0,0 +1,42 @@
+package logging
+
+import (
+	"log/slog"
+	"path/filepath"
+
+	"gitlab.com/whom/bingobot/internal/config"
+	"gopkg.in/natefinch/lumberjack.v2"
+)
+
+type Logger struct {
+	*slog.Logger
+}
+
+var (
+	logger Logger
+)
+
+func InitLogger(appConfig *config.AppConfig) Logger {
+
+	lj := &lumberjack.Logger{
+		Filename:   filepath.Join(appConfig.LogDir, appConfig.LogFile),
+		MaxSize:    appConfig.LogMaxSizeMB,
+		MaxBackups: appConfig.LogMaxBackups,
+		MaxAge:     appConfig.LogMaxAgeDays,
+		Compress:   appConfig.LogCompression,
+	}
+
+	logger = Logger{
+		slog.New(
+			slog.NewJSONHandler(lj, &slog.HandlerOptions{
+				AddSource: appConfig.LogAddSource,
+			}),
+		),
+	}
+
+	return logger
+}
+
+func GetLogger() Logger {
+	return logger
+}