// SPDX-License-Identifier: Apache-2.0

use rtnetlink::packet_route::link::{BridgeId, InfoBridge};

use super::super::mac::{parse_as_mac, ETH_ALEN};
use crate::{BridgeInfo, NisporError};

pub(crate) fn parse_bridge_info(
    infos: &[InfoBridge],
) -> Result<BridgeInfo, NisporError> {
    let mut bridge_info = BridgeInfo::default();

    for info in infos {
        if let InfoBridge::ForwardDelay(d) = info {
            bridge_info.forward_delay = Some(*d);
        } else if let InfoBridge::HelloTime(d) = info {
            bridge_info.hello_time = Some(*d);
        } else if let InfoBridge::MaxAge(d) = info {
            bridge_info.max_age = Some(*d);
        } else if let InfoBridge::AgeingTime(d) = info {
            bridge_info.ageing_time = Some(*d);
        } else if let InfoBridge::StpState(d) = info {
            bridge_info.stp_state = Some((*d).into());
        } else if let InfoBridge::Priority(d) = info {
            bridge_info.priority = Some(*d);
        } else if let InfoBridge::VlanFiltering(d) = info {
            bridge_info.vlan_filtering = Some(*d);
        } else if let InfoBridge::VlanProtocol(d) = info {
            bridge_info.vlan_protocol = Some((*d).into());
        } else if let InfoBridge::GroupFwdMask(d) = info {
            bridge_info.group_fwd_mask = Some(*d);
        } else if let InfoBridge::RootId(bridge_id) = info {
            bridge_info.root_id = Some(parse_bridge_id(bridge_id)?);
        } else if let InfoBridge::BridgeId(bridge_id) = info {
            bridge_info.bridge_id = Some(parse_bridge_id(bridge_id)?);
        } else if let InfoBridge::RootPort(d) = info {
            bridge_info.root_port = Some(*d);
        } else if let InfoBridge::RootPathCost(d) = info {
            bridge_info.root_path_cost = Some(*d);
        } else if let InfoBridge::TopologyChange(d) = info {
            bridge_info.topology_change = Some(*d > 0);
        } else if let InfoBridge::TopologyChangeDetected(d) = info {
            bridge_info.topology_change_detected = Some(*d > 0);
        } else if let InfoBridge::HelloTimer(d) = info {
            bridge_info.hello_timer = Some(*d);
        } else if let InfoBridge::TcnTimer(d) = info {
            bridge_info.tcn_timer = Some(*d);
        } else if let InfoBridge::TopologyChangeTimer(d) = info {
            bridge_info.topology_change_timer = Some(*d);
        } else if let InfoBridge::GcTimer(d) = info {
            bridge_info.gc_timer = Some(*d);
        } else if let InfoBridge::GroupAddr(d) = info {
            bridge_info.group_addr = Some(parse_as_mac(ETH_ALEN, d)?);
        // InfoBridge::FdbFlush is only used for changing bridge
        } else if let InfoBridge::MulticastRouter(d) = info {
            bridge_info.multicast_router = Some((*d).into());
        } else if let InfoBridge::MulticastSnooping(d) = info {
            bridge_info.multicast_snooping = Some((*d) > 0);
        } else if let InfoBridge::MulticastQueryUseIfaddr(d) = info {
            bridge_info.multicast_query_use_ifaddr = Some((*d) > 0);
        } else if let InfoBridge::MulticastQuerier(d) = info {
            bridge_info.multicast_querier = Some((*d) > 0);
        } else if let InfoBridge::MulticastHashElasticity(d) = info {
            bridge_info.multicast_hash_elasticity = Some(*d);
        } else if let InfoBridge::MulticastHashMax(d) = info {
            bridge_info.multicast_hash_max = Some(*d);
        } else if let InfoBridge::MulticastLastMemberCount(d) = info {
            bridge_info.multicast_last_member_count = Some(*d);
        } else if let InfoBridge::MulticastStartupQueryCount(d) = info {
            bridge_info.multicast_startup_query_count = Some(*d);
        } else if let InfoBridge::MulticastLastMemberInterval(d) = info {
            bridge_info.multicast_last_member_interval = Some(*d);
        } else if let InfoBridge::MulticastMembershipInterval(d) = info {
            bridge_info.multicast_membership_interval = Some(*d);
        } else if let InfoBridge::MulticastQuerierInterval(d) = info {
            bridge_info.multicast_querier_interval = Some(*d);
        } else if let InfoBridge::MulticastQueryInterval(d) = info {
            bridge_info.multicast_query_interval = Some(*d);
        } else if let InfoBridge::MulticastQueryResponseInterval(d) = info {
            bridge_info.multicast_query_response_interval = Some(*d);
        } else if let InfoBridge::MulticastStartupQueryInterval(d) = info {
            bridge_info.multicast_startup_query_interval = Some(*d);
        } else if let InfoBridge::NfCallIpTables(d) = info {
            bridge_info.nf_call_iptables = Some(*d > 0);
        } else if let InfoBridge::NfCallIp6Tables(d) = info {
            bridge_info.nf_call_ip6tables = Some(*d > 0);
        } else if let InfoBridge::NfCallArpTables(d) = info {
            bridge_info.nf_call_arptables = Some(*d > 0);
        } else if let InfoBridge::VlanDefaultPvid(d) = info {
            bridge_info.default_pvid = Some(*d);
        } else if let InfoBridge::VlanStatsEnabled(d) = info {
            bridge_info.vlan_stats_enabled = Some(*d > 0);
        } else if let InfoBridge::MulticastStatsEnabled(d) = info {
            bridge_info.multicast_stats_enabled = Some(*d > 0);
        } else if let InfoBridge::MulticastIgmpVersion(d) = info {
            bridge_info.multicast_igmp_version = Some(*d);
        } else if let InfoBridge::MulticastMldVersion(d) = info {
            bridge_info.multicast_mld_version = Some(*d);
        } else if let InfoBridge::VlanStatsPerHost(d) = info {
            bridge_info.vlan_stats_per_host = Some(*d > 0);
        } else if let InfoBridge::MultiBoolOpt(d) = info {
            bridge_info.multi_bool_opt = Some(*d);
        } else {
            log::debug!("Unknown NLA {:?}", &info);
        }
    }
    Ok(bridge_info)
}

pub(crate) fn parse_bridge_id(
    bridge_id: &BridgeId,
) -> Result<String, NisporError> {
    let mac = parse_as_mac(ETH_ALEN, &bridge_id.address)
        .map_err(|_| {
            NisporError::invalid_argument(
                "invalid mac address in bridge_id".into(),
            )
        })?
        .to_lowercase()
        .replace(':', "");

    Ok(format!("{:04x}.{}", bridge_id.priority, mac))
}
