refac: debt on role backend

api/pkg/access/access.go

@@ -3,20 +3,27 @@ package access
 import (
 	"RenewCMS/api/pkg/apperr"
 	"RenewCMS/internal/domain/role"
+	"RenewCMS/internal/infrastructure/useCases"
 	"context"
 	"errors"
 	"net/http"
 )
 
-type grantsContextKey struct{}
+type Caller = useCases.ContentCaller
 
-func NewContext(ctx context.Context, grants role.GrantSet) context.Context {
-	return context.WithValue(ctx, grantsContextKey{}, grants)
+type callerContextKey struct{}
+
+func WithCaller(ctx context.Context, caller Caller) context.Context {
+	return context.WithValue(ctx, callerContextKey{}, caller)
+}
+
+func CallerOf(r *http.Request) Caller {
+	caller, _ := r.Context().Value(callerContextKey{}).(Caller)
+	return caller
 }
 
 func Grants(r *http.Request) role.GrantSet {
-	grants, _ := r.Context().Value(grantsContextKey{}).(role.GrantSet)
-	return grants
+	return CallerOf(r).Grants
 }
 
 func WriteMissingPermission(w http.ResponseWriter, key string) {