installed logger

internal/server/server.go

@@ -1,6 +1,7 @@
 package server
 
 import (
+	"context"
 	"encoding/json"
 	"fmt"
 	"html/template"
@@ -9,6 +10,7 @@ import (
 	"path"
 	"strconv"
 	"strings"
+	"time"
 
 	"github.com/angelbeltran/templater"
 
@@ -36,6 +38,7 @@ type Server struct {
 }
 
 func NewServer(
+	ctx context.Context,
 	logger *slog.Logger,
 	contentDir string,
 	rawEvents *raw_events.Store,
@@ -43,14 +46,49 @@ func NewServer(
 	etsy *etsy_platform.Platform,
 	auth *authentication.Authenticator,
 ) *Server {
+	reqIDCh := newRequestIDProvider(ctx)
+
+	reqLog := logger.WithGroup("request")
 	mux := response.NewMux(func(fn response.HandlerFunc) response.HandlerFunc {
 		return func(r *http.Request) (response.Response, error) {
-			res, err := fn(r)
-			if err != nil {
-				status := response.GetStatusFromError(err)
+			start := time.Now()
 
-				// TODO: get better logger
-				fmt.Printf("[ERROR]: %d: %s; %s\n", status, r.URL, err)
+			args := []any{
+				"id", <-reqIDCh,
+				"url", r.URL,
+			}
+
+			reqLog.Debug("Request", args...)
+
+			res, err := fn(r)
+			end := time.Now()
+
+			var status int
+			if err != nil {
+				status = response.GetStatusFromError(err)
+			} else {
+				var ok bool
+				if status, ok = res.GetStatus(); !ok {
+					status = http.StatusOK
+				}
+			}
+
+			args = append(args,
+				"status", status,
+				"elapsed", time.Duration(end.UnixNano()-start.UnixNano()),
+			)
+
+			switch status / 100 {
+			case 1:
+				reqLog.Debug("Response", args...)
+			case 2:
+				reqLog.Debug("Response", args...)
+			case 3:
+				reqLog.Debug("Response", args...)
+			case 4:
+				reqLog.Warn("Response", args...)
+			default:
+				reqLog.Error("Response", args...)
 			}
 
 			return res, err
@@ -223,3 +261,24 @@ func mapConstantErrorsToHTTPErrors(err error) error {
 	}
 	return err
 }
+
+func newRequestIDProvider(ctx context.Context) <-chan int {
+	reqIDCh := make(chan int)
+
+	go func() {
+		defer close(reqIDCh)
+
+		nextReqID := 1
+
+		for {
+			select {
+			case reqIDCh <- nextReqID:
+				nextReqID += 1
+			case <-ctx.Done():
+				return
+			}
+		}
+	}()
+
+	return reqIDCh
+}