import { promises as fs } from 'node:fs';
import { tmpdir } from 'node:os';
import { join } from 'node:path';
import { io } from 'socket.io-client';
import { dispatchInboundReplyWithBase } from 'openclaw/plugin-sdk/inbound-reply-dispatch';
import { resolveCoalesce } from './accounts.js';
import { fabricPeerRoutingForXType } from './channel.js';
import { recordChannelType } from './channel-meta.js';
import { enqueueDelivery, flushFabricForChannel } from './coalesce.js';
export class FabricInbound {
    core;
    cfg;
    client;
    identity;
    log;
    accounts;
    sockets = [];
    seen = new Set();
    // Timers that periodically re-sync channel membership per (agent, guild).
    // Without this, the agent's socket.io subscriptions are a snapshot taken
    // at connect time — any channel the agent joins later (e.g. a fresh DM
    // created by another user) is unreachable until the gateway restarts.
    channelSyncTimers = [];
    // Resync cadence. Backend doesn't push a `channel.joined` event, so we
    // poll. 60s keeps the lag bounded without hammering the backend.
    static CHANNEL_SYNC_INTERVAL_MS = 60_000;
    // Guild access tokens are short-lived (~15 min). The socket survives via
    // socket.io reconnect, but the token captured at connect time goes stale,
    // so HTTP calls (attachment download, posting the reply) start 401ing.
    // Re-login per agent on a short TTL to keep a fresh token.
    tokenCache = new Map();
    static TOKEN_TTL_MS = 8 * 60 * 1000;
    // Per-channel serial work queue. Every inbound socket message for a
    // channel awaits the previous task for that same channel, so model
    // turns never interleave. Map key = channelId; value is the tail of
    // the chain (an in-flight promise the next task awaits).
    //
    // Why per-channel and not per-agent: a single agent may sit in
    // several triage / general channels; we want each channel to flow at
    // its own speed but the SAME channel's traffic to be strictly serial.
    // For dm and discuss the queue also serialises but those traditionally
    // had at-most-one-in-flight anyway via the turn engine.
    channelChains = new Map();
    // Agent.status snapshot cache (5s TTL) — keeps the HF /calendar/
    // agent/status round-trip off the hot path for back-to-back triage
    // messages. Short TTL because status flips are rare-but-meaningful.
    agentStatusCache = new Map();
    static AGENT_STATUS_TTL_MS = 5_000;
    // Triage messages that arrived while the on-duty agent wasn't on_call
    // — sit here until either (a) the agent becomes on_call and the next
    // triage arrival drains them, or (b) the gateway restarts (lost; ok
    // because the underlying Fabric messages are persisted and re-fetched
    // on agent reconnect's history sweep).
    pendingTriageGated = [];
    // Schedule `task` to run after every previous task on the same
    // channel has completed. Returns the promise so callers can await
    // their own result if they need to; the chain itself is fire-and-
    // forget from the socket.on handler.
    enqueueChannelTask(channelId, task) {
        const prev = this.channelChains.get(channelId) ?? Promise.resolve();
        const next = prev.then(task).catch((err) => {
            this.log.warn(`fabric: per-channel task failed channel=${channelId}: ${String(err)}`);
        });
        this.channelChains.set(channelId, next);
        // Best-effort cleanup so the Map doesn't grow without bound for
        // long-running gateways: drop the entry when the chain settles, but
        // only if it's still the latest reference (newer enqueue may have
        // overwritten it in the meantime).
        void next.finally(() => {
            if (this.channelChains.get(channelId) === next) {
                this.channelChains.delete(channelId);
            }
        });
        return next;
    }
    // Hit HF backend to check whether `agentId` is currently on_call.
    // Cached for 5s. Failures (network, 404, etc.) are treated as "not
    // on_call" — triage stays gated rather than risking a confused wake.
    async checkAgentOnCall(agentId) {
        const cached = this.agentStatusCache.get(agentId);
        if (cached && Date.now() - cached.at < FabricInbound.AGENT_STATUS_TTL_MS) {
            return cached.onCall;
        }
        const base = (process.env.HF_API_BASE_URL ?? '').trim() || 'https://monitor.hangman-lab.top';
        // CLAW_IDENTIFIER resolution priority:
        //   1. HF_CLAW_IDENTIFIER env (operator override)
        //   2. openclaw config `plugins.harbor-forge.identifier` (what the HF
        //      plugin itself uses — keeps the two in sync without an extra
        //      env per service unit)
        //   3. os.hostname() last-resort fallback (often wrong: e.g. sim
        //      container hostname is `server.t2` but HF agent row has
        //      `claw_identifier=sim-t2`; matching is mandatory for the HF
        //      backend's _require_agent() check)
        let claw = (process.env.HF_CLAW_IDENTIFIER ?? '').trim();
        if (!claw) {
            try {
                // openclaw config shape (verified in sim):
                //   { plugins: { entries: { 'harbor-forge': { config: { identifier } } } } }
                const cfg = this.cfg;
                const fromCfg = cfg?.plugins?.entries?.['harbor-forge']?.config?.identifier;
                if (fromCfg && typeof fromCfg === 'string' && fromCfg.trim()) {
                    claw = fromCfg.trim();
                }
            }
            catch {
                /* fall through to hostname */
            }
        }
        if (!claw) {
            claw = (await import('os')).hostname();
        }
        let onCall = false;
        try {
            const url = `${base.replace(/\/$/, '')}/calendar/agent/status?agent_id=${encodeURIComponent(agentId)}`;
            const res = await fetch(url, {
                headers: { 'X-Agent-ID': agentId, 'X-Claw-Identifier': claw },
            });
            if (res.ok) {
                const data = (await res.json());
                onCall = (data.status ?? '').toLowerCase() === 'on_call';
            }
        }
        catch (err) {
            this.log.warn(`fabric: HF status check failed agent=${agentId}: ${String(err)}`);
        }
        this.agentStatusCache.set(agentId, { onCall, at: Date.now() });
        return onCall;
    }
    // FIFO drain of all triage-gated messages for `agentId` (called when
    // we just learned they're on_call). Each drained message is dispatched
    // through its own channel chain so per-channel serial order is kept.
    async drainGatedFor(agentId) {
        const keep = [];
        const drain = [];
        for (const item of this.pendingTriageGated) {
            if (item.agentId === agentId)
                drain.push(item);
            else
                keep.push(item);
        }
        if (drain.length === 0)
            return;
        this.pendingTriageGated = keep;
        for (const item of drain) {
            this.log.info(`fabric: triage drain agent=${item.agentId} channel=${item.channelId} msg=${item.m.messageId}`);
            // Re-enqueue via the per-channel chain so ordering is preserved.
            this.enqueueChannelTask(item.channelId, async () => {
                await this.dispatch(item.agentId, item.g, item.channelId, item.m, item.session);
            });
        }
    }
    // Return a fresh guild access token for the agent, re-authenticating with
    // the agent's Fabric API key when the cached session is stale. Falls back
    // to the connect-time session token if re-login fails.
    async freshGuildToken(agentId, guildNodeId, fallback) {
        const pick = (s) => s.guildAccessTokens.find((t) => t.guildNodeId === guildNodeId)?.token;
        const now = Date.now();
        const cached = this.tokenCache.get(agentId);
        if (cached && now - cached.at < FabricInbound.TOKEN_TTL_MS) {
            return pick(cached.session) ?? pick(fallback);
        }
        const apiKey = this.identity.findByAgentId(agentId)?.fabricApiKey;
        if (apiKey) {
            try {
                const s = await this.client.agentLogin(apiKey);
                this.tokenCache.set(agentId, { session: s, at: now });
                return pick(s) ?? pick(fallback);
            }
            catch (err) {
                this.log.warn(`fabric: token refresh failed agent=${agentId}: ${String(err)}`);
            }
        }
        return pick(fallback);
    }
    constructor(core, // PluginRuntime
    cfg, // OpenClawConfig
    client, identity, log, accounts = []) {
        this.core = core;
        this.cfg = cfg;
        this.client = client;
        this.identity = identity;
        this.log = log;
        this.accounts = accounts;
    }
    async start() {
        const entries = this.accounts.length > 0
            ? this.accounts.map((a) => ({ agentId: a.agentId, fabricApiKey: a.fabricApiKey }))
            : this.identity.list();
        for (const entry of entries) {
            try {
                const session = await this.client.agentLogin(entry.fabricApiKey);
                this.identity.upsert({
                    agentId: entry.agentId,
                    fabricApiKey: entry.fabricApiKey,
                    fabricUserId: session.user.id,
                    displayName: session.user.name,
                });
                await this.connectAgent(entry.agentId, session);
                this.log.info(`fabric: agent ${entry.agentId} connected as ${session.user.email}`);
            }
            catch (err) {
                this.log.warn(`fabric: agent ${entry.agentId} connect failed: ${String(err)}`);
            }
        }
    }
    stop() {
        for (const t of this.channelSyncTimers)
            clearInterval(t);
        this.channelSyncTimers = [];
        for (const s of this.sockets)
            s.disconnect();
        this.sockets = [];
    }
    /**
     * Per-account metadata harvested during `start()` — used by
     * PresenceSync to know where to push each agent's HF status.
     *
     * `fabricUserId` is filled from `session.user.id` after agent-login.
     * `guildBaseUrl` is the FIRST guild the agent is connected to (multi-
     * guild presence push is a future concern; for sim/prod-v1 each agent
     * is in one guild).
     *
     * Returns ONLY agents that successfully connected — failed-login
     * agents have no fabricUserId yet and are excluded.
     */
    getPresenceAccounts() {
        const out = [];
        for (const entry of this.identity.list()) {
            if (!entry.fabricUserId)
                continue;
            const presenceGuild = this.firstGuildByAgent.get(entry.agentId);
            if (!presenceGuild)
                continue;
            out.push({
                agentId: entry.agentId,
                fabricUserId: entry.fabricUserId,
                guildBaseUrl: presenceGuild.endpoint,
                guildNodeId: presenceGuild.nodeId,
                fabricApiKey: entry.fabricApiKey,
            });
        }
        return out;
    }
    // Filled by connectAgent for each (agent, guild). Tracks ONLY the first
    // guild per agent (used as the presence-push target). Stores both
    // endpoint and nodeId — presence-sync needs both: endpoint to build
    // the URL, nodeId to pick the matching guildAccessToken from a fresh
    // agent-login response.
    firstGuildByAgent = new Map();
    async connectAgent(agentId, session) {
        const selfUserId = session.user.id;
        // First-guild capture for presence-sync push target. session.guilds is
        // already in priority order from Center; we take the first one with a
        // valid endpoint and stop. Multi-guild presence is a future concern.
        if (!this.firstGuildByAgent.has(agentId)) {
            const firstGuild = session.guilds.find((g) => typeof g.endpoint === 'string' && g.endpoint.length > 0);
            if (firstGuild)
                this.firstGuildByAgent.set(agentId, { endpoint: firstGuild.endpoint, nodeId: firstGuild.nodeId });
        }
        for (const g of session.guilds) {
            const tok = session.guildAccessTokens.find((t) => t.guildNodeId === g.nodeId)?.token;
            if (!tok)
                continue;
            // Use the *callback* form of `auth` so socket.io re-evaluates the JWT
            // on every (re)connect. The single-shot `auth: { token: tok }` shape
            // captured the token in closure: after socket.io's silent auto-reconnect
            // the backend got the same JWT that expired ~15 min into the session
            // (guildAccessToken TTL = 900s) and silently rejected the handshake at
            // the application layer. The client's `connect` event still fired (TCP
            // succeeded), so the plugin happily ran the channel-resync, emitted
            // `join_channel` into the void, and logged "joined N channel(s)" while
            // the backend was actually broadcasting message.created to a room with
            // zero subscribers. End user symptom: DMs to agents silently dropped.
            const socket = io(`${g.endpoint}/realtime`, {
                transports: ['websocket'],
                auth: (cb) => {
                    // Best-effort fresh token; on transient failure fall back to the
                    // last known good one. tokenCache also keeps HTTP calls (attachment
                    // download / reply post) from 401'ing in the same window.
                    this.freshGuildToken(agentId, g.nodeId, session)
                        .then((fresh) => cb({ token: fresh ?? tok }))
                        .catch(() => cb({ token: tok }));
                },
                autoConnect: false,
            });
            // Tracked socket.io rooms for this (agent, guild). The initial fetch
            // on `connect` seeds it; the periodic resync diffs against it so we
            // only emit `join_channel` for genuinely new channels (and
            // `leave_channel` for ones the agent is no longer in).
            const joined = new Set();
            const syncChannels = async (kind) => {
                let freshTok;
                try {
                    freshTok = await this.freshGuildToken(agentId, g.nodeId, session);
                }
                catch {
                    freshTok = tok;
                }
                const authTok = freshTok ?? tok;
                try {
                    const res = await fetch(`${g.endpoint}/api/channels?guildId=${encodeURIComponent(g.nodeId)}`, { headers: { authorization: `Bearer ${authTok}` } });
                    if (!res.ok)
                        return;
                    const channels = (await res.json());
                    const current = new Set(channels.map((c) => c.id));
                    let added = 0;
                    let removed = 0;
                    for (const id of current) {
                        if (!joined.has(id)) {
                            socket.emit('join_channel', { channelId: id });
                            joined.add(id);
                            added++;
                        }
                    }
                    for (const id of [...joined]) {
                        if (!current.has(id)) {
                            socket.emit('leave_channel', { channelId: id });
                            joined.delete(id);
                            removed++;
                        }
                    }
                    if (kind === 'initial') {
                        this.log.info(`fabric: agent ${agentId} joined ${current.size} channel(s) on ${g.nodeId}`);
                    }
                    else if (added > 0 || removed > 0) {
                        this.log.info(`fabric: agent ${agentId} channel resync on ${g.nodeId}: +${added} -${removed} (now ${joined.size})`);
                    }
                }
                catch {
                    /* best effort — next tick will retry */
                }
            };
            socket.on('connect', () => {
                // On every (re)connect the server forgets prior subscriptions, so
                // reset our local view and seed from a fresh fetch.
                joined.clear();
                void syncChannels('initial');
            });
            // Push-based membership events from the backend (companion to
            // Fabric.Backend.Guild's RealtimeGateway.emitToUser). When the
            // server tells us this user was added to / removed from a
            // channel, we sub/unsub the socket.io room immediately — no
            // 60s wait for the polling resync. Polling remains as a safety
            // net for missed events.
            socket.on('channel.joined', (evt) => {
                const id = evt?.channelId;
                if (!id || joined.has(id))
                    return;
                socket.emit('join_channel', { channelId: id });
                joined.add(id);
                this.log.info(`fabric: agent ${agentId} channel.joined push on ${g.nodeId}: ${id} (now ${joined.size})`);
            });
            socket.on('channel.left', (evt) => {
                const id = evt?.channelId;
                if (!id || !joined.has(id))
                    return;
                socket.emit('leave_channel', { channelId: id });
                joined.delete(id);
                this.log.info(`fabric: agent ${agentId} channel.left push on ${g.nodeId}: ${id} (now ${joined.size})`);
            });
            const syncTimer = setInterval(() => void syncChannels('resync'), FabricInbound.CHANNEL_SYNC_INTERVAL_MS);
            this.channelSyncTimers.push(syncTimer);
            socket.on('message.created', (m) => {
                const channelId = m.channelId ?? '';
                if (!channelId)
                    return;
                // Record xType into the channel-meta cache before self-author
                // / dedup gates — channel type doesn't depend on who sent the
                // message, and recording it on observer-only triage messages
                // is still useful (the next consumer asking
                // __fabric.getChannelType wants the answer regardless of
                // whether THIS message was delivered to an agent).
                recordChannelType(channelId, m.xType);
                if (m.authorUserId && m.authorUserId === selfUserId)
                    return;
                const key = `${agentId}:${m.messageId}`;
                if (this.seen.has(key))
                    return;
                this.seen.add(key);
                if (this.seen.size > 5000)
                    this.seen.clear();
                // Per-channel serial queue. Prevents concurrent model turns for
                // the same channel — important for triage where a second wake
                // arriving mid-reply would interleave with the in-flight one.
                this.enqueueChannelTask(channelId, async () => {
                    // Triage on_call gate: if the on-duty agent isn't currently
                    // on_call per HF, don't dispatch yet — just sit on the
                    // per-channel queue. Subsequent triage messages will recheck;
                    // when the agent becomes on_call, the next arrival drains.
                    //
                    // Also handles: triage + wake=true must verify status before
                    // committing to a model turn. Non-triage and triage observer
                    // (wake=false) skip the gate.
                    if (m.xType === 'triage' && m.wakeup === true) {
                        const onCall = await this.checkAgentOnCall(agentId);
                        if (!onCall) {
                            this.log.info(`fabric: triage wake gated (agent=${agentId} not on_call) — re-queue msg=${m.messageId}`);
                            this.pendingTriageGated.push({ agentId, g, channelId, m, session });
                            return;
                        }
                        // Drain any previously-gated messages (FIFO) before this one,
                        // now that we know the agent is on_call.
                        await this.drainGatedFor(agentId);
                    }
                    await this.dispatch(agentId, g, channelId, m, session);
                });
            });
            socket.connect();
            this.sockets.push(socket);
        }
    }
    // Download a message's attachments to a temp dir using the agent's guild
    // token; returns local paths/types/urls for the inbound media context.
    async fetchAttachments(agentId, endpoint, token, m) {
        const out = { paths: [], types: [], urls: [] };
        const list = m.attachments ?? [];
        if (!list.length || !token)
            return out;
        const dir = join(tmpdir(), `fabric-media-${agentId}-${m.messageId}`.replace(/[^\w.-]/g, '_'));
        try {
            await fs.mkdir(dir, { recursive: true });
        }
        catch {
            return out;
        }
        let i = 0;
        for (const a of list) {
            try {
                const abs = a.url.startsWith('http') ? a.url : `${endpoint}${a.url}`;
                const res = await fetch(abs, { headers: { authorization: `Bearer ${token}` } });
                if (!res.ok) {
                    this.log.warn(`fabric: attachment fetch ${res.status} ${abs}`);
                    continue;
                }
                const buf = Buffer.from(await res.arrayBuffer());
                const safe = (a.name ?? `file-${i}`).replace(/[^\w.-]/g, '_').slice(0, 120) || `file-${i}`;
                const p = join(dir, `${i}-${safe}`);
                await fs.writeFile(p, buf);
                out.paths.push(p);
                out.types.push(a.mimeType ||
                    res.headers.get('content-type')?.split(';')[0] ||
                    'application/octet-stream');
                out.urls.push(abs);
                i++;
            }
            catch (err) {
                this.log.warn(`fabric: attachment fetch failed agent=${agentId}: ${String(err)}`);
            }
        }
        if (out.paths.length)
            this.log.info(`fabric: fetched ${out.paths.length} attachment(s) agent=${agentId}`);
        return out;
    }
    async dispatch(agentId, guild, channelId, m, session) {
        const core = this.core;
        const cfg = this.cfg;
        try {
            // Route by xType. DM channels need peer.kind='direct' so openclaw
            // treats them as 1:1 (sessionKey 'agent:<id>:fabric:direct:<chan>'
            // and ctx.ChatType='direct') rather than as a multi-party group.
            // Without this, the agent's user-prompt metadata says
            // 'is_group_chat: true' on a DM and downstream prompt logic
            // (commands-handlers `isDirectMessage` checks ChatType==='direct')
            // misclassifies the turn.
            const { peerKind, chatType } = fabricPeerRoutingForXType(m.xType);
            const route = core.channel.routing.resolveAgentRoute({
                cfg: this.cfg,
                channel: 'fabric',
                accountId: agentId,
                peer: { kind: peerKind, id: channelId },
            });
            const storePath = core.channel.session.resolveStorePath(cfg.session?.store, {
                agentId: route.agentId,
            });
            const baseCtx = {
                Body: m.content,
                BodyForAgent: m.content,
                RawBody: m.content,
                CommandBody: m.content,
                From: `fabric:channel:${channelId}`,
                To: `fabric:${channelId}`,
                SessionKey: route.sessionKey,
                AccountId: route.accountId ?? agentId,
                ChatType: chatType,
                ConversationLabel: `fabric:${guild.nodeId}`,
                SenderId: m.authorUserId ?? 'fabric',
                Provider: 'fabric',
                Surface: 'fabric',
                MessageSid: m.messageId,
                Timestamp: m.createdAt ? Date.parse(m.createdAt) : Date.now(),
                OriginatingChannel: 'fabric',
                OriginatingTo: `fabric:${channelId}`,
            };
            // Non-wakeup: Fabric has already decided this agent is NOT the speaker
            // this round. Do NOT run the model and do NOT send anything back — the
            // discuss/work turn engine expects silence from non-woken agents (only
            // the woken speaker emits a normal message or /no-reply). We still
            // record the message into the agent's session so it has the full
            // channel conversation as context whenever it IS later woken.
            //
            // Exception: dm channels are 1:1 — there is no turn/wakeup gating;
            // any message that isn't the agent's own (already filtered above) is
            // always delivered to the model.
            if (m.xType !== 'dm' && m.wakeup !== true) {
                // Triage exception: non-wake messages (admin observer) MUST NOT
                // enter the agent's session at all. The next time the agent
                // wakes for a triage message, their context should contain only
                // their own past wakeups + their own outgoing messages — never
                // the observer-only chatter from other agents. For non-triage
                // channels keep the legacy "record-as-history" so a later wake
                // sees the full channel conversation.
                if (m.xType === 'triage') {
                    this.log.info(`fabric: triage observer skip agent=${agentId} channel=${channelId} msg=${m.messageId}`);
                    return;
                }
                const ctxPayload = core.channel.reply.finalizeInboundContext(baseCtx);
                await core.channel.session.recordInboundSession({
                    storePath,
                    sessionKey: route.sessionKey,
                    ctx: ctxPayload,
                    createIfMissing: true,
                    onRecordError: (err) => this.log.warn(`fabric: history record failed agent=${agentId}: ${String(err)}`),
                });
                this.log.info(`fabric: recorded (no wakeup, history only) agent=${agentId} channel=${channelId}`);
                return;
            }
            this.log.info(`fabric: dispatch agent=${agentId} channel=${channelId}`);
            const gt = await this.freshGuildToken(agentId, guild.nodeId, session);
            // Fetch any uploaded files for the agent: download to a temp dir and
            // hand openclaw local MediaPaths (+types) so the model receives them.
            const media = await this.fetchAttachments(agentId, guild.endpoint, gt, m);
            const ctxPayload = core.channel.reply.finalizeInboundContext({
                ...baseCtx,
                // Provide ONLY local paths. The guild file URL is on a private host
                // (e.g. localhost); openclaw's SSRF guard blocks re-fetching it, so
                // passing MediaUrls is both redundant (we already downloaded the
                // bytes) and noisy. Local MediaPaths is the reliable delivery.
                ...(media.paths.length
                    ? {
                        MediaPaths: media.paths,
                        MediaTypes: media.types,
                        MediaPath: media.paths[0],
                        MediaType: media.types[0],
                    }
                    : {}),
            });
            await dispatchInboundReplyWithBase({
                cfg: this.cfg,
                channel: 'fabric',
                accountId: agentId,
                route,
                storePath,
                ctxPayload: ctxPayload,
                core: this.core,
                deliver: async (payload) => {
                    const text = (payload?.text ?? '').trim();
                    this.log.info(`fabric: deliver agent=${agentId} channel=${channelId} len=${text.length}`);
                    if (!text || !gt)
                        return;
                    // Buffer segments; the merged message is posted right after
                    // dispatch returns (the deterministic turn boundary, see the
                    // finally below). Disable per channel: channels.fabric.coalesce.
                    await enqueueDelivery({
                        channelId,
                        text,
                        coalesce: resolveCoalesce(this.cfg),
                        post: (t) => this.client.postMessage(guild.endpoint, gt, channelId, t, session.user.id),
                        log: (m) => this.log.info(m),
                    });
                },
                onRecordError: (err) => this.log.warn(`fabric: session record failed agent=${agentId}: ${String(err)}`),
                onDispatchError: (err, info) => this.log.warn(`fabric: ${info.kind} dispatch failed agent=${agentId}: ${String(err)}`),
                // - disableBlockStreaming: Fabric has no length limit, deliver the
                //   whole reply as ONE message.
                // - sourceReplyDeliveryMode 'automatic': OpenClaw defaults group
                //   chats to "message_tool_only", which SUPPRESSES auto-delivery of
                //   the agent's text reply (it expects the agent to call a message
                //   tool). Fabric already gates *when* an agent speaks via the
                //   per-recipient wakeup flag, so once a turn is dispatched the
                //   reply must always flow back through `deliver`. Forcing
                //   'automatic' overrides the group default so the reply is
                //   delivered. (source-reply-delivery-mode: a truthy `requested`
                //   wins unless it's message_tool_only with no tool available.)
                replyOptions: {
                    disableBlockStreaming: true,
                    sourceReplyDeliveryMode: 'automatic',
                },
            });
            this.log.info(`fabric: dispatch returned agent=${agentId} channel=${channelId}`);
        }
        catch (err) {
            this.log.warn(`fabric: dispatch failed agent=${agentId} channel=${channelId}: ${String(err)}`);
        }
        finally {
            // Deterministic per-turn boundary: dispatchInboundReplyWithBase only
            // resolves AFTER every deliver() call of this turn has run, so the
            // buffer now holds all segments — flush them as ONE Fabric message.
            // No hooks, no timers, no idle guessing.
            await flushFabricForChannel(channelId);
        }
    }
}