Phase 872: protomux-rpc MESSAGE_SEARCH_REQUEST multi-peer pull (v0.8.839)

Opt-in mesh search RPC to all connected peers with deduped merge and gossip
fanout fallback. Non-breaking; default event path unchanged.

README.md

@@ -92,6 +92,8 @@ Application facade: one `PearcordPlatform` class that wires identity, database,
 
 **Phase 822 (v0.8.789):** Triple-peer topology via `guild-mesh-topology` + `getMeshStabilityStats`. Bundle: `npm run test:ci-phase822`.
 
+**Phase 872 (v0.8.839):** Opt-in protomux-rpc `MESSAGE_SEARCH_REQUEST` multi-peer pull via `_fetchGuildSearchFromMeshRpc` (`PEARCORD_RPC_REQUEST_WIRE=1`). Bundle: `npm run test:ci-phase872`.
+
 **Phase 871 (v0.8.838):** Opt-in protomux-rpc `MEMBER_PAGE_REQUEST` pull via `_tryMemberPageRequestRpc` (`PEARCORD_RPC_REQUEST_WIRE=1`). Bundle: `npm run test:ci-phase871`.
 
 **Phase 869 (v0.8.836):** Opt-in protomux-rpc `GUILD_SYNC_REQUEST` pull via `_tryGuildSyncRequestRpc` (`PEARCORD_RPC_REQUEST_WIRE=1`). Bundle: `npm run test:ci-phase869`.

mixins/runtime/guild-sync/platform-guild-wire-mixin.js

@@ -36,7 +36,8 @@ _bindGuildGossipRpcHandlers (guildInstance) {
   const next = enabled
     ? {
         GUILD_SYNC_REQUEST: (payload) => this._handleGuildSyncRequestRpc(payload),
-        MEMBER_PAGE_REQUEST: (payload) => this._handleMemberPageRequestRpc(payload)
+        MEMBER_PAGE_REQUEST: (payload) => this._handleMemberPageRequestRpc(payload),
+        MESSAGE_SEARCH_REQUEST: (payload) => this._handleMessageSearchRequestRpc(payload)
       }
     : null
   const hadHandlers = !!guildInstance._gossipRpcHandlers

mixins/runtime/search-discovery/platform-search-mesh-gossip-mixin.js

@@ -2,11 +2,71 @@
 
 const searchScope = require('pearcord-search')
 const enrichmentScope = require('../../../platform-message-enrichment')
+const sharedScope = require('../../../platform-pearcord-shared-imports')
 const { id } = require('../../../platform-class-imports')
 
 const platformSearchMeshGossipMixin = {
+  async _fetchGuildSearchFromMeshRpc (guildId, query, opts = {}) {
+    if (!sharedScope.isRpcGossipRequestEnabled?.()) return null
+    if (!this.guild?.guild || this.guild.guild.id !== guildId) return null
+    if (!this.guild?.requestGossipFromPeer) return null
+    const peerIds = [...(this.guild.peers?.keys() || [])]
+    if (!peerIds.length) return null
+    const requestId = id()
+    const payload = {
+      guildId,
+      requestId,
+      query: String(query || '').trim(),
+      limit: opts.limit || 50,
+      requestedBy: this.identity.user?.id || null,
+      at: Date.now()
+    }
+    await this._flushGuildGossipOutbox().catch(() => {})
+    try {
+      const { ensureGuildWireChannels } = require('pearcord-guild/mesh')
+      ensureGuildWireChannels(this.guild)
+    } catch {
+      // ignore
+    }
+    const rpcMs = Number(process.env.PEARCORD_MESSAGE_SEARCH_RPC_MS) || 8000
+    const wireMs =
+      Number(process.env.PEARCORD_MESSAGE_SEARCH_RPC_WIRE_READY_MS) || 6000
+    const responses = await Promise.all(
+      peerIds.map((peerId) =>
+        this.guild
+          .requestGossipFromPeer(
+            peerId,
+            sharedScope.RPC.MESSAGE_SEARCH_REQUEST,
+            payload,
+            { timeout: rpcMs, wireReadyMs: wireMs }
+          )
+          .catch(() => null)
+      )
+    )
+    const anyResponse = responses.some((r) => r && Array.isArray(r.hits))
+    if (!anyResponse) return null
+    const merged = []
+    const seen = new Set()
+    for (const res of responses) {
+      if (!res?.hits?.length) continue
+      for (const h of res.hits) {
+        const m = searchScope.meshHitToMessage(h, guildId)
+        if (!m) continue
+        const key = `${m.channelId}:${m.id}`
+        if (seen.has(key)) continue
+        seen.add(key)
+        merged.push(m)
+      }
+    }
+    return merged
+  },
+
   async _fetchGuildSearchFromMeshOnce (guildId, query, opts = {}) {
     if (!this.guild?.guild || this.guild.guild.id !== guildId) return []
+    if (sharedScope.isRpcGossipRequestEnabled?.()) {
+      const rpcHits = await this._fetchGuildSearchFromMeshRpc(guildId, query, opts)
+      if (rpcHits !== null) return rpcHits
+    }
     const timeoutMs = Math.min(8000, Math.max(600, Number(opts.timeoutMs) || 2800))
     const requestId = id()
     const waitPromise = new Promise((resolve) => {
@@ -39,24 +99,36 @@ const platformSearchMeshGossipMixin = {
     fn(hits)
   },
 
-  async _onMessageSearchRequestGossip (payload) {
+  async _buildMessageSearchResponsePayload (payload) {
     if (!payload?.guildId || !payload?.requestId || !payload?.query) return null
     if (this.guild?.guild?.id !== payload.guildId) return null
     const local = await this.searchGuildMessages(payload.guildId, payload.query, {
       limit: Math.min(30, Number(payload.limit) || 30)
     })
     const compact = local.map((m) => searchScope.compactMeshSearchHit(m))
-    if (this.guild.gossipMessageSearchResponse) {
+    return {
-      this.guild.gossipMessageSearchResponse({
       guildId: payload.guildId,
       requestId: payload.requestId,
       query: payload.query,
       hits: compact,
       respondedBy: this.identity.user?.id || null,
       at: Date.now()
-      })
     }
-    return compact
+  },
+
+  async _handleMessageSearchRequestRpc (payload) {
+    const res = await this._buildMessageSearchResponsePayload(payload)
+    if (res) res.viaRpc = true
+    return res
+  },
+
+  async _onMessageSearchRequestGossip (payload) {
+    const res = await this._buildMessageSearchResponsePayload(payload)
+    if (!res) return null
+    if (this.guild.gossipMessageSearchResponse) {
+      this.guild.gossipMessageSearchResponse(res)
+    }
+    return res.hits
   },
 
   async _onMessageSearchResponseGossip (payload) {