feat: implemented service/transport/main layers

internal/transport/middleware/log.go

@@ -0,0 +1,44 @@
+package middleware
+
+import (
+	"time"
+
+	"git.intra.yksa.space/gsn/predictor/internal/pkg/errcodes"
+	"git.intra.yksa.space/gsn/predictor/internal/pkg/log"
+	"github.com/ogen-go/ogen/middleware"
+	"go.uber.org/zap"
+)
+
+func Logging(logger *zap.Logger) middleware.Middleware {
+	return func(req middleware.Request, next func(req middleware.Request) (middleware.Response, error)) (middleware.Response, error) {
+		lg := logger.With(
+			zap.String("operationId", req.OperationID),
+		)
+
+		lg.Info("started request")
+
+		req.Context = log.ToCtx(req.Context, lg)
+
+		start := time.Now()
+		resp, err := next(req)
+		dur := time.Since(start).Microseconds()
+
+		if err != nil {
+			if errcode, ok := err.(*errcodes.ErrorCode); ok {
+				lg.Error("request error",
+					zap.Int("status_code", errcode.StatusCode),
+					zap.String("message", errcode.Message),
+					zap.String("details", errcode.Details),
+				)
+			} else {
+				lg.Error("request internal error",
+					zap.Error(err),
+				)
+			}
+		}
+
+		lg.Info("done request", zap.Float64("duration_ms", float64(dur)/float64(1000)))
+
+		return resp, err
+	}
+}