initial commit

internal/core/base.go

@@ -0,0 +1,64 @@
+package core
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/rs/zerolog"
+)
+
+type BaseAction interface{}
+
+type Action[Q, R any] interface {
+	BaseAction
+
+	Do(context.Context, Q) (R, error)
+}
+
+type ActionDecorator[Q, R any, A Action[Q, R]] interface {
+	Action[Q, R]
+}
+
+type baseAction struct {
+	env *Env
+}
+
+func newBaseAction(env *Env) baseAction {
+	return baseAction{
+		env: env,
+	}
+}
+
+func applyDecorators[Q, R any, A Action[Q, R]](action A) ActionDecorator[Q, R, A] {
+	return logActionDecorator[Q, R, A]{
+		action: action,
+	}
+}
+
+type logActionDecorator[Q, R any, A Action[Q, R]] struct {
+	action Action[Q, R]
+}
+
+func (d logActionDecorator[Q, R, A]) Do(ctx context.Context, params Q) (result R, err error) {
+	actionName := getTypeName[A]()
+	start := time.Now()
+	log := zerolog.Ctx(ctx).With().Str("action_name", actionName).Logger()
+	ctx = log.WithContext(ctx)
+
+	result, err = d.action.Do(ctx, params)
+	elapsed := time.Since(start)
+	if err != nil {
+		log.Warn().Err(err).Dur("elapsed", elapsed).Msg("action failed")
+	}
+
+	log.Info().Dur("elapsed", elapsed).Msg("action successed")
+
+	return result, err
+}
+
+func getTypeName[T any]() string {
+	var t T
+	out := fmt.Sprintf("%T", t)
+	return out
+}