#include "gui_bridge.h"

#include <QObject>
#include <QMetaObject>
#include <QByteArray>
#include <cstring>

extern "C" {
#include "../../../lib/u_async.h"
#include "../../../lib/mem.h"
#include "../../../lib/debug_config.h"
#include "../../../src/routing_layer/topo_node.h"
#include "../../../src/routing_layer/topo_group.h"
}

/* ── Внутренний объект-приёмник в GUI-потоке ── */

class GuiBridgeReceiver : public QObject {
    Q_OBJECT
public:
    void*              ua = nullptr;

    GuiBridgeReceiver(QObject* parent = nullptr) : QObject(parent) {}

    Q_INVOKABLE void processPost(int eventType, QByteArray data);
};

static GuiBridgeReceiver*    g_receiver           = nullptr;
static gui_connect_result_fn g_connect_result_cb  = nullptr;
static gui_msg_received_fn   g_msg_received_cb    = nullptr;
static gui_channel_updated_fn  g_channel_updated_cb  = nullptr;
static gui_my_node_id_fn       g_my_node_id_cb       = nullptr;
static gui_auto_connect_status_fn g_auto_connect_status_cb = nullptr;
static gui_channel_peers_online_fn g_channel_peers_online_cb = nullptr;
static gui_db_ready_fn          g_db_ready_cb          = nullptr;
static gui_status_refresh_fn    g_status_refresh_cb    = nullptr;
static gui_attachment_downloaded_fn g_attachment_downloaded_cb = nullptr;
static gui_download_progress_fn     g_download_progress_cb     = nullptr;
static gui_nodeinfo_update_fn       g_nodeinfo_update_cb       = nullptr;
static gui_invite_received_fn       g_invite_received_cb       = nullptr;
static gui_conn_list_fn              g_conn_list_cb            = nullptr;
static gui_conn_metrics_fn           g_conn_metrics_cb         = nullptr;
static gui_member_detail_fn          g_member_detail_cb        = nullptr;
static gui_member_list_fn            g_member_list_cb          = nullptr;
static gui_member_updated_fn         g_member_updated_cb       = nullptr;
static gui_member_removed_fn         g_member_removed_cb       = nullptr;
static gui_bgp_info_fn               g_bgp_info_cb             = nullptr;
static gui_admin_key_received_fn     g_admin_key_received_cb   = nullptr;
static gui_invite_link_ready_fn      g_invite_link_ready_cb    = nullptr;
static gui_invite_candidates_fn      g_invite_candidates_cb    = nullptr;
static gui_call_incoming_fn          g_call_incoming_cb        = nullptr;
static gui_call_id_fn                g_call_ringing_cb         = nullptr;
static gui_call_id_fn                g_call_accepted_cb        = nullptr;
static gui_call_ended_fn             g_call_ended_cb           = nullptr;
static gui_call_ended_fn             g_call_declined_cb        = nullptr;
static gui_call_error_fn             g_call_error_cb           = nullptr;
static gui_call_path_fn              g_call_path_cb            = nullptr;
static gui_radio_talk_fn             g_radio_talk_cb           = nullptr;
static gui_dm_msg_received_fn        g_dm_msg_received_cb      = nullptr;
static gui_dm_conv_updated_fn        g_dm_conv_updated_cb      = nullptr;
static gui_dm_messages_fn            g_dm_messages_cb          = nullptr;
static struct UASYNC*        g_ua                 = nullptr;
static struct UTUN_INSTANCE* g_inst               = nullptr;

/* ── GuiBridgeReceiver implementation ── */

void GuiBridgeReceiver::processPost(int eventType, QByteArray data) {
    const uint8_t* d = (const uint8_t*)data.constData();
    int dlen = data.size();

    switch (eventType) {
    case GUI_EVT_MSG_RECEIVED:
        if (dlen >= 2) {
            uint8_t chLen = d[0];
            if (dlen >= 1 + chLen + 8) {
                uint64_t author = 0;
                memcpy(&author, d + 1 + chLen, 8);
                QString chId = QString::fromUtf8((const char*)d + 1, chLen);
                DEBUG_INFO(DEBUG_CATEGORY_CHAT_SYNC, "gui_bridge: MSG_RECEIVED ch=%s author=%llu",
                           qPrintable(chId), (unsigned long long)author);
                if (g_msg_received_cb) g_msg_received_cb((const char*)d + 1, chLen, author);
            } else {
                DEBUG_WARN(DEBUG_CATEGORY_DEBUG, "gui_bridge: MSG_RECEIVED invalid data length %d", dlen);
            }
        } else {
            DEBUG_WARN(DEBUG_CATEGORY_DEBUG, "gui_bridge: MSG_RECEIVED data too short %d", dlen);
        }
        break;
    case GUI_EVT_CONNECT_RESULT:
        if (dlen >= 20) {
            uint64_t nodeId, channelId; int result;
            memcpy(&nodeId, d, 8); memcpy(&result, d + 8, 4); memcpy(&channelId, d + 12, 8);
            DEBUG_INFO(DEBUG_CATEGORY_MEMBER_SYNC, "gui_bridge: CONNECT_RESULT node=0x%016llx ch=%llu result=%d",
                       (unsigned long long)nodeId, (unsigned long long)channelId, result);
            if (g_connect_result_cb) g_connect_result_cb(nodeId, channelId, result);
        } else {
            DEBUG_WARN(DEBUG_CATEGORY_DEBUG, "gui_bridge: CONNECT_RESULT data too short %d", dlen);
        }
        break;
    case GUI_EVT_NEW_PEER:
        if (dlen >= 8) {
            uint64_t nodeId; memcpy(&nodeId, d, 8);
            DEBUG_INFO(DEBUG_CATEGORY_MEMBER_SYNC, "gui_bridge: NEW_PEER node=0x%016llx", (unsigned long long)nodeId);
        } else {
            DEBUG_WARN(DEBUG_CATEGORY_DEBUG, "gui_bridge: NEW_PEER data too short %d", dlen);
        }
        break;
    case GUI_EVT_CHANNEL_UPDATED:
        if (dlen >= 2) {
            uint8_t chLen = d[0];
            if (dlen >= 1 + chLen) {
                QString chId = QString::fromUtf8((const char*)d + 1, chLen);
                DEBUG_INFO(DEBUG_CATEGORY_CHAT_SYNC, "gui_bridge: CHANNEL_UPDATED ch=%s", qPrintable(chId));
                if (g_channel_updated_cb) g_channel_updated_cb((const char*)d + 1, chLen);
            }
        } else {
            DEBUG_WARN(DEBUG_CATEGORY_DEBUG, "gui_bridge: CHANNEL_UPDATED data too short %d", dlen);
        }
        break;
    case GUI_EVT_MY_NODE_ID:
        if (dlen >= 8) {
            uint64_t nid; memcpy(&nid, d, 8);
            if (g_my_node_id_cb) g_my_node_id_cb(nid);
        }
        break;
    case GUI_EVT_AUTO_CONNECT_STATUS:
        if (dlen >= 7) {
            uint8_t  status = d[0];
            uint16_t total_tried; memcpy(&total_tried, d + 1, 2);
            uint16_t node_count;  memcpy(&node_count,  d + 3, 2);
            uint16_t connected;   memcpy(&connected,   d + 5, 2);
            const char* st_str = status == 0 ? "in_progress" : status == 1 ? "done" : "stopped";
            if (status != 0) DEBUG_INFO(DEBUG_CATEGORY_MEMBER_SYNC, "gui_bridge: AUTO_CONNECT %s tried=%u/%u connected=%u", st_str, total_tried, node_count, connected);
            if (g_auto_connect_status_cb) g_auto_connect_status_cb(status, total_tried, node_count, connected);
        }
        break;
    case GUI_EVT_CHANNEL_PEERS_ONLINE:
        if (dlen >= 3) {
            uint8_t chLen = d[0];
            if (dlen >= 3 + chLen) {
                uint16_t online; memcpy(&online, d + 1 + chLen, 2);
                static char lastChId[256] = {0};
                static uint16_t lastOnline = 0xFFFF;
                if (chLen != (uint8_t)strlen(lastChId) || memcmp(lastChId, d + 1, chLen) != 0 || online != lastOnline) {
                    memcpy(lastChId, d + 1, chLen); lastChId[chLen] = '\0';
                    lastOnline = online;
                    DEBUG_INFO(DEBUG_CATEGORY_CHAT_SYNC, "gui_bridge: CHANNEL_PEERS_ONLINE ch=%.*s online=%u", chLen, (const char*)d + 1, online);
                }
                if (g_channel_peers_online_cb) g_channel_peers_online_cb((const char*)d + 1, chLen, online);
            }
        }
        break;
    case GUI_EVT_DB_READY:
        DEBUG_DEBUG(DEBUG_CATEGORY_CHAT_SYNC, "gui_bridge: DB_READY (chat DB tables created)");
        if (g_db_ready_cb) g_db_ready_cb();
        break;
    case GUI_EVT_STATUS_REFRESH:
        if (g_status_refresh_cb) g_status_refresh_cb((const char*)d, dlen);
        break;
    case GUI_EVT_NODE_CHANGED:
        if (dlen >= 8) {
            uint64_t nodeId; memcpy(&nodeId, d, 8);
            DEBUG_INFO(DEBUG_CATEGORY_MEMBER_SYNC, "gui_bridge: NODE_CHANGED node=0x%016llx — pubkey changed, connection closed", (unsigned long long)nodeId);
        } else {
            DEBUG_WARN(DEBUG_CATEGORY_DEBUG, "gui_bridge: NODE_CHANGED data too short %d", dlen);
        }
        break;
    case GUI_EVT_ATTACHMENT_DOWNLOADED:
        if (dlen >= 2) {
            uint8_t chLen = d[0];
            if (dlen >= 1 + chLen + 8) {
                int64_t msgId = 0; memcpy(&msgId, d + 1 + chLen, 8);
                DEBUG_INFO(DEBUG_CATEGORY_DEBUG, "gui_bridge: ATTACHMENT_DOWNLOADED ch=%.*s msgId=%lld", chLen, (const char*)d + 1, (long long)msgId);
                if (g_attachment_downloaded_cb) g_attachment_downloaded_cb((const char*)d + 1, chLen, msgId);
            }
        }
        break;
    case GUI_EVT_DOWNLOAD_PROGRESS:
        if (dlen >= 2) {
            uint8_t chLen = d[0];
            if (dlen >= 1 + chLen + 16) {
                int64_t msgId = 0; memcpy(&msgId, d + 1 + chLen, 8);
                int32_t bd = 0, nb = 0; memcpy(&bd, d + 1 + chLen + 8, 4); memcpy(&nb, d + 1 + chLen + 12, 4);
                DEBUG_INFO(DEBUG_CATEGORY_DEBUG, "gui_bridge: DOWNLOAD_PROGRESS ch=%.*s msgId=%lld %d/%d", chLen, (const char*)d + 1, (long long)msgId, bd, nb);
                if (g_download_progress_cb) g_download_progress_cb((const char*)d + 1, chLen, msgId, bd, nb);
            }
        }
        break;
    case GUI_EVT_NODEINFO_UPDATE:
        if (g_nodeinfo_update_cb) g_nodeinfo_update_cb(d, dlen);
        break;
    case 18: /* CHAT_EVT_INVITE_RECEIVED */
        if (g_invite_received_cb) g_invite_received_cb(d, dlen);
        break;
    case GUI_EVT_CONN_LIST:
        if (g_conn_list_cb) g_conn_list_cb(d, dlen);
        break;
    case GUI_EVT_CONN_METRICS:
        if (g_conn_metrics_cb) g_conn_metrics_cb(d, dlen);
        break;
    case GUI_EVT_MEMBER_DETAIL:
        if (g_member_detail_cb) g_member_detail_cb(d, dlen);
        break;
    case GUI_EVT_MEMBER_LIST:
        if (g_member_list_cb) g_member_list_cb(d, dlen);
        break;
    case GUI_EVT_MEMBER_UPDATED:
        if (g_member_updated_cb) g_member_updated_cb(d, dlen);
        break;
    case GUI_EVT_MEMBER_REMOVED:
        if (g_member_removed_cb) g_member_removed_cb(d, dlen);
        break;
    case GUI_EVT_BGP_INFO:
        if (g_bgp_info_cb) g_bgp_info_cb(d, dlen);
        break;
    case GUI_EVT_ADMIN_KEY_RECEIVED:
        if (dlen >= 2) {
            uint8_t chLen = d[0];
            if (dlen >= 1 + chLen + 8) {
                uint64_t from; memcpy(&from, d + 1 + chLen, 8);
                DEBUG_INFO(DEBUG_CATEGORY_CHAT_SYNC, "gui_bridge: ADMIN_KEY_RECEIVED ch=%.*s from=0x%016llx",
                           chLen, (const char*)d + 1, (unsigned long long)from);
                if (g_admin_key_received_cb) g_admin_key_received_cb(d, dlen);
            }
        }
        break;
    case GUI_EVT_INVITE_LINK_READY:
        if (dlen >= 11) {
            uint8_t chLen = d[0];
            if (dlen < 1 + chLen + 10) break;
            uint64_t requestId; memcpy(&requestId, d + 1 + chLen, 8);
            uint16_t linkLen; memcpy(&linkLen, d + 1 + chLen + 8, 2);
            if (dlen >= 1 + chLen + 10 + linkLen) {
                QByteArray link((const char*)d + 1 + chLen + 10, linkLen);
                if (g_invite_link_ready_cb) g_invite_link_ready_cb((const char*)d + 1, chLen, requestId, link.constData());
            }
        }
        break;
    case GUI_EVT_INVITE_CANDIDATES:
        if (dlen >= 2) {
            uint8_t chLen = d[0];
            if (dlen >= 1 + chLen + 10) {
                if (g_invite_candidates_cb) g_invite_candidates_cb((const char*)d + 1, chLen, d + 1 + chLen, dlen - 1 - chLen);
            }
        }
        break;
    case GUI_EVT_DM_MSG_RECEIVED:
        if (dlen >= 2) {
            uint8_t cl = d[0];
            if (dlen >= 1 + cl + 8) {
                uint64_t author; memcpy(&author, d + 1 + cl, 8);
                DEBUG_INFO(DEBUG_CATEGORY_CHAT_SYNC, "gui_bridge: DM_MSG_RECEIVED conv=%.*s author=%llu",
                           cl, (const char*)d + 1, (unsigned long long)author);
                if (g_dm_msg_received_cb) g_dm_msg_received_cb((const char*)d + 1, cl, author);
            }
        }
        break;
    case GUI_EVT_DM_CONV_UPDATED:
        if (dlen >= 2) {
            uint8_t cl = d[0];
            if (dlen >= 1 + cl) {
                DEBUG_INFO(DEBUG_CATEGORY_CHAT_SYNC, "gui_bridge: DM_CONV_UPDATED conv=%.*s",
                           cl, (const char*)d + 1);
                if (g_dm_conv_updated_cb) g_dm_conv_updated_cb((const char*)d + 1, cl);
            }
        }
        break;
    case GUI_EVT_DM_MESSAGES:
        if (g_dm_messages_cb) g_dm_messages_cb(d, dlen);
        break;
    case GUI_EVT_CALL_INCOMING:
        if (dlen >= 1 + 8 + 8) {
            uint8_t chLen = d[0];
            if (dlen >= 1 + chLen + 8 + 8) {
                uint64_t caller, callId;
                memcpy(&caller, d + 1 + chLen, 8);
                memcpy(&callId, d + 1 + chLen + 8, 8);
                DEBUG_INFO(DEBUG_CATEGORY_CHAT_SYNC, "gui_bridge: CALL_INCOMING ch=%.*s caller=0x%016llx id=0x%016llx",
                           chLen, (const char*)d + 1, (unsigned long long)caller, (unsigned long long)callId);
                if (g_call_incoming_cb) g_call_incoming_cb((const char*)d + 1, chLen, caller, callId);
            }
        }
        break;
    case GUI_EVT_CALL_RINGING:
        if (dlen >= 8) {
            uint64_t callId; memcpy(&callId, d, 8);
            if (g_call_ringing_cb) g_call_ringing_cb(callId);
        }
        break;
    case GUI_EVT_CALL_ACCEPTED:
        if (dlen >= 8) {
            uint64_t callId; memcpy(&callId, d, 8);
            if (g_call_accepted_cb) g_call_accepted_cb(callId);
        }
        break;
    case GUI_EVT_CALL_ENDED:
        if (dlen >= 9) {
            uint64_t callId; memcpy(&callId, d, 8);
            if (g_call_ended_cb) g_call_ended_cb(callId, d[8]);
        }
        break;
    case GUI_EVT_CALL_DECLINED:
        if (dlen >= 9) {
            uint64_t callId; memcpy(&callId, d, 8);
            if (g_call_declined_cb) g_call_declined_cb(callId, d[8]);
        }
        break;
    case GUI_EVT_CALL_ERROR:
        if (dlen >= 9) {
            uint64_t callId; memcpy(&callId, d, 8);
            uint8_t err = d[8];
            DEBUG_INFO(DEBUG_CATEGORY_CHAT_SYNC, "gui_bridge: CALL_ERROR id=0x%016llx err=%u text=%.*s",
                       (unsigned long long)callId, (unsigned)err, dlen - 9, (const char*)d + 9);
            if (g_call_error_cb) g_call_error_cb(callId, err, (const char*)d + 9, dlen - 9);
        }
        break;
    case GUI_EVT_CALL_PATH:
        if (dlen >= 9) {
            uint64_t callId; memcpy(&callId, d, 8);
            DEBUG_INFO(DEBUG_CATEGORY_CHAT_SYNC, "gui_bridge: CALL_PATH id=0x%016llx text=%.*s",
                       (unsigned long long)callId, dlen - 8, (const char*)d + 8);
            if (g_call_path_cb) g_call_path_cb(callId, (const char*)d + 8, dlen - 8);
        }
        break;
    case GUI_EVT_CALL_STATS:
        if (dlen >= 14) {
            uint64_t callId; memcpy(&callId, d, 8);
            uint16_t rtt = (uint16_t)((d[8] << 8) | d[9]);
            uint16_t buf = (uint16_t)((d[10] << 8) | d[11]);
            uint16_t tempo = (uint16_t)((d[12] << 8) | d[13]);
            uint16_t dropped = 0, underruns = 0;
            if (dlen >= 18) {
                dropped = (uint16_t)((d[14] << 8) | d[15]);
                underruns = (uint16_t)((d[16] << 8) | d[17]);
            }
            DEBUG_INFO(DEBUG_CATEGORY_CHAT_SYNC,
                       "gui_bridge: CALL_STATS id=0x%016llx rtt=%ums buffer=%ums tempo=%u.%02ux dropped=%u underruns=%u",
                       (unsigned long long)callId, (unsigned)rtt, (unsigned)buf,
                       (unsigned)(tempo / 100), (unsigned)(tempo % 100),
                       (unsigned)dropped, (unsigned)underruns);
        }
        break;
    case GUI_EVT_RADIO_TALK:
        if (dlen >= 19) {
            uint64_t groupId, src;
            memcpy(&groupId, d, 8);
            memcpy(&src, d + 8, 8);
            uint8_t on = d[18];
            if (g_radio_talk_cb) g_radio_talk_cb(groupId, src, on);
        }
        break;
    default:
        DEBUG_WARN(DEBUG_CATEGORY_DEBUG, "gui_bridge: unknown event type %d", eventType);
        break;
    }
}

/* ── C API ── */

extern "C" {

void gui_bridge_init(void) {
    g_receiver = new GuiBridgeReceiver();
    g_receiver->ua = g_ua;
}

void gui_bridge_set_uasync(struct UASYNC* ua) {
    g_ua = ua;
    if (g_receiver) g_receiver->ua = ua;
}

void gui_bridge_set_inst(struct UTUN_INSTANCE* inst) {
    g_inst = inst;
}

struct UTUN_INSTANCE* gui_bridge_get_inst(void) {
    return g_inst;
}

void gui_bridge_post(int event_type, const uint8_t* data, int data_len) {
    if (!g_receiver) { DEBUG_WARN(DEBUG_CATEGORY_DEBUG, "gui_bridge_post: g_receiver=NULL, dropping event %d", event_type); return; }

    QByteArray d;
    if (data_len > 0) d = QByteArray((const char*)data, data_len);

    QMetaObject::invokeMethod(g_receiver, "processPost",
        Qt::QueuedConnection,
        Q_ARG(int, event_type),
        Q_ARG(QByteArray, d));
}

void gui_bridge_post_uasync_fn(void (*fn)(void*), void* arg) {
    if (!g_ua) {
        DEBUG_WARN(DEBUG_CATEGORY_DEBUG, "gui_bridge_post_uasync_fn: g_ua=NULL, post dropped");
        return;
    }
    if (!fn) return;
    uasync_post(g_ua, fn, arg);
}

int gui_bridge_is_uasync_ready(void) {
    return g_ua != NULL ? 1 : 0;
}

void gui_bridge_set_connect_result_cb(gui_connect_result_fn cb) {
    g_connect_result_cb = cb;
}

void gui_bridge_set_msg_received_cb(gui_msg_received_fn cb) {
    g_msg_received_cb = cb;
}

void gui_bridge_set_channel_updated_cb(gui_channel_updated_fn cb) {
    g_channel_updated_cb = cb;
}

void gui_bridge_set_my_node_id_cb(gui_my_node_id_fn cb) {
    g_my_node_id_cb = cb;
}

void gui_bridge_set_auto_connect_status_cb(gui_auto_connect_status_fn cb) {
    g_auto_connect_status_cb = cb;
}

void gui_bridge_set_channel_peers_online_cb(gui_channel_peers_online_fn cb) {
    g_channel_peers_online_cb = cb;
}

void gui_bridge_set_db_ready_cb(gui_db_ready_fn cb) {
    g_db_ready_cb = cb;
}

void gui_bridge_set_status_refresh_cb(gui_status_refresh_fn cb) {
    g_status_refresh_cb = cb;
}

void gui_bridge_set_attachment_downloaded_cb(gui_attachment_downloaded_fn cb) {
    g_attachment_downloaded_cb = cb;
}

void gui_bridge_set_download_progress_cb(gui_download_progress_fn cb) {
    g_download_progress_cb = cb;
}

void gui_bridge_set_nodeinfo_update_cb(gui_nodeinfo_update_fn cb) {
    g_nodeinfo_update_cb = cb;
}

void gui_bridge_set_invite_received_cb(gui_invite_received_fn cb) {
    g_invite_received_cb = cb;
}

void gui_bridge_set_conn_list_cb(gui_conn_list_fn cb) {
    g_conn_list_cb = cb;
}

void gui_bridge_set_conn_metrics_cb(gui_conn_metrics_fn cb) {
    g_conn_metrics_cb = cb;
}

void gui_bridge_set_member_detail_cb(gui_member_detail_fn cb) {
    g_member_detail_cb = cb;
}

void gui_bridge_set_member_list_cb(gui_member_list_fn cb) {
    g_member_list_cb = cb;
}

void gui_bridge_set_member_updated_cb(gui_member_updated_fn cb) {
    g_member_updated_cb = cb;
}

void gui_bridge_set_member_removed_cb(gui_member_removed_fn cb) {
    g_member_removed_cb = cb;
}

void gui_bridge_set_bgp_info_cb(gui_bgp_info_fn cb) {
    g_bgp_info_cb = cb;
}

void gui_bridge_set_admin_key_received_cb(gui_admin_key_received_fn cb) {
    g_admin_key_received_cb = cb;
}

void gui_bridge_set_invite_link_ready_cb(gui_invite_link_ready_fn cb) {
    g_invite_link_ready_cb = cb;
}

void gui_bridge_set_invite_candidates_cb(gui_invite_candidates_fn cb) {
    g_invite_candidates_cb = cb;
}

void gui_bridge_set_call_incoming_cb(gui_call_incoming_fn cb) {
    g_call_incoming_cb = cb;
}

void gui_bridge_set_call_ringing_cb(gui_call_id_fn cb) {
    g_call_ringing_cb = cb;
}

void gui_bridge_set_call_accepted_cb(gui_call_id_fn cb) {
    g_call_accepted_cb = cb;
}

void gui_bridge_set_call_ended_cb(gui_call_ended_fn cb) {
    g_call_ended_cb = cb;
}

void gui_bridge_set_call_declined_cb(gui_call_ended_fn cb) {
    g_call_declined_cb = cb;
}

void gui_bridge_set_call_error_cb(gui_call_error_fn cb) {
    g_call_error_cb = cb;
}

void gui_bridge_set_call_path_cb(gui_call_path_fn cb) {
    g_call_path_cb = cb;
}

void gui_bridge_set_radio_talk_cb(gui_radio_talk_fn cb) {
    g_radio_talk_cb = cb;
}

void gui_bridge_set_dm_msg_received_cb(gui_dm_msg_received_fn cb) {
    g_dm_msg_received_cb = cb;
}

void gui_bridge_set_dm_conv_updated_cb(gui_dm_conv_updated_fn cb) {
    g_dm_conv_updated_cb = cb;
}

void gui_bridge_set_dm_messages_cb(gui_dm_messages_fn cb) {
    g_dm_messages_cb = cb;
}

} /* extern "C" */

/* ── uTun nodeinfo callback (called from uasync thread) ── */

extern "C" void gui_nodeinfo_cb_impl(struct TOPO_GROUP* group, struct TOPO_GROUP_NODE* nq, void* arg) {
    (void)arg;
    if (!nq) return;
    uint16_t best_rtt = topo_get_chain_rtt(nq);
    uint8_t hop_count = 0;
    topo_node_best_hop_list(nq, &hop_count, NULL);
    uint8_t data[16];
    memcpy(data, &nq->node_id, 8);
    data[8] = nq->conn_presence;
    data[9] = nq->conn_up;
    memcpy(data + 10, &best_rtt, 2);
    data[12] = hop_count;
    data[13] = 0;
    uint16_t bgp_nodes = group ? (uint16_t)queue_entry_count(group->nodes) : 0;
    memcpy(data + 14, &bgp_nodes, 2);
    gui_bridge_post(GUI_EVT_NODEINFO_UPDATE, data, sizeof(data));
}

#include "gui_bridge_impl.moc"