transaction: Add is_reboot_suggested

Reboot is suggested for a transaction if any of the involved packages is
EITHER (1) part of a hardcoded set of "core" packages (including kernel
and systemd) OR (2) has an associated advisory with
reboot_suggested=True.

For rpm-software-management#587

include/libdnf5/base/transaction.hpp

@@ -159,6 +159,8 @@ class Transaction {
     /// Retrieve a list of the problems that occurred during `check_gpg_signatures` procedure.
     std::vector<std::string> get_gpg_signature_problems() const noexcept;
 
+    bool is_reboot_suggested();
+
 private:
     friend class TransactionEnvironment;
     friend class TransactionGroup;

libdnf5/base/transaction.cpp

@@ -160,6 +160,10 @@ std::vector<TransactionModule> & Transaction::get_transaction_modules() const {
     return p_impl->modules;
 }
 
+bool Transaction::is_reboot_suggested() {
+    return p_impl->is_reboot_suggested();
+}
+
 GoalProblem Transaction::Impl::report_not_found(
     GoalAction action,
     const std::string & pkg_spec,
@@ -1022,4 +1026,32 @@ bool Transaction::Impl::check_gpg_signatures() {
     return result;
 }
 
+static const std::unordered_set<std::string> CORE_PACKAGE_NAMES = {
+    "kernel",
+    "kernel-rt",
+    "kernel-core",
+    "glibc",
+    "linux-firmware",
+    "systemd",
+    "dbus",
+    "dbus-broker",
+    "dbus-daemon",
+};
+
+bool Transaction::Impl::is_reboot_suggested() {
+    libdnf5::advisory::AdvisoryQuery advisories{base};
+
+    libdnf5::rpm::PackageSet package_set{base};
+    for (const auto & trans_pkg : packages) {
+        if (CORE_PACKAGE_NAMES.contains(trans_pkg.get_package().get_name())) {
+            return true;
+        }
+        package_set.add(trans_pkg.get_package());
+    }
+    const auto & advisory_packages = advisories.get_advisory_packages_sorted(package_set, libdnf5::sack::QueryCmp::EQ);
+
+    return std::ranges::any_of(
+        advisory_packages, [](const auto & advisory_package) { return advisory_package.get_reboot_suggested(); });
+}
+
 }  // namespace libdnf5::base

libdnf5/base/transaction_impl.hpp

@@ -116,6 +116,8 @@ class Transaction::Impl {
 
     bool check_gpg_signatures();
     ImportRepoKeysResult import_repo_keys(libdnf5::repo::Repo & repo);
+
+    bool is_reboot_suggested();
 };