Improve HTTP timeout config

pkg/config/config.go

@@ -2,10 +2,12 @@ package config
 
 import (
 	"context"
+	"errors"
 	"flag"
 	"fmt"
 	"os"
 	"runtime/debug"
+	"time"
 
 	"github.com/caarlos0/env/v11"
 	"gopkg.in/yaml.v3"
@@ -58,9 +60,52 @@ func loadConfig(configPath string) (*AppConfig, error) {
 		return nil, fmt.Errorf("could not parse environment variables: %w", err)
 	}
 
+	// Perform updates / enrichments
+	err := prepareConfig(&cfg)
+	if err != nil {
+		return nil, err
+	}
+
 	return &cfg, nil
 }
 
+func prepareConfig(cfg *AppConfig) error {
+	var errs error
+
+	// Set timeouts
+	if cfg.HTTP.ReadTimeout != "" {
+		if rT, err := time.ParseDuration(cfg.HTTP.ReadTimeout); err == nil {
+			cfg.HTTP.rT = &rT
+		} else {
+			errs = errors.Join(errs, err)
+		}
+	}
+
+	if cfg.HTTP.ReadTimeout != "" {
+		if wT, err := time.ParseDuration(cfg.HTTP.WriteTimeout); err == nil {
+			cfg.HTTP.wT = &wT
+		} else {
+			errs = errors.Join(errs, err)
+		}
+	}
+
+	if cfg.HTTP.IdleTimeout != "" {
+		if iT, err := time.ParseDuration(cfg.HTTP.IdleTimeout); err == nil {
+			cfg.HTTP.iT = &iT
+		} else {
+			errs = errors.Join(errs, err)
+		}
+	}
+
+	return errs
+}
+
+// Returns read timeout, write timeout, and idle timeout, in that order
+// nil if unset
+func (h *HTTPConfig) Timeouts() (*time.Duration, *time.Duration, *time.Duration) {
+	return h.rT, h.wT, h.iT
+}
+
 func getVersion() string {
 	if info, ok := debug.ReadBuildInfo(); ok && info.Main.Version != "(devel)" {
 		return info.Main.Version