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// Copyright 2026 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "internal/platform/implementation/linux/wifi_direct_utils.h"
#include <cstdint>
#include <optional>
#include <string>
#include <utility>
#include <vector>
#include "absl/strings/match.h"
namespace nearby::linux::wifi_direct_internal {
namespace {
constexpr std::uint32_t kWpsMethodPushButton = 0x4;
} // namespace
std::optional<PeerInfo> SelectPeerByName(const std::vector<PeerInfo>& peers,
absl::string_view device_name) {
std::optional<PeerInfo> selected;
for (const PeerInfo& peer : peers) {
if (peer.hardware_address.empty() ||
!absl::EqualsIgnoreCase(peer.name, device_name)) {
continue;
}
if (!selected.has_value() || peer.strength > selected->strength ||
(peer.strength == selected->strength &&
peer.last_seen > selected->last_seen)) {
selected = peer;
}
}
return selected;
}
ConnectionSettings BuildGcConnectionSettings(absl::string_view uuid,
absl::string_view peer_address) {
return {
{"connection",
{{"uuid", sdbus::Variant(std::string(uuid))},
{"id", sdbus::Variant(std::string("Nearby Wi-Fi Direct"))},
{"type", sdbus::Variant(std::string("wifi-p2p"))},
{"autoconnect", sdbus::Variant(false)}}},
{"wifi-p2p",
{{"peer", sdbus::Variant(std::string(peer_address))},
{"wps-method", sdbus::Variant(kWpsMethodPushButton)}}},
{"ipv4", {{"method", sdbus::Variant(std::string("auto"))}}},
{"ipv6", {{"method", sdbus::Variant(std::string("disabled"))}}},
};
}
} // namespace nearby::linux::wifi_direct_internal