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docs/diagrams/10_pubsub_search.puml

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+@startuml
+title PubSub — Recherche gossip globale (type "all") : Pair A cherche, Pair B répond
+
+participant "App Pair A" as AppA
+participant "NATS A" as NATSA
+participant "Node A" as NodeA
+participant "PubSubService A" as PubSubA
+participant "GossipSub libp2p (mesh)" as GossipSub
+participant "Node B" as NodeB
+participant "PubSubService B" as PubSubB
+participant "DB Pair B (oc-lib)" as DBB
+participant "StreamService B" as StreamB
+participant "StreamService A" as StreamA
+
+AppA -> NATSA: Publish(PROPALGATION_EVENT, {PB_SEARCH, type:"all", search:"gpu"})
+NATSA -> NodeA: ListenNATS → PB_SEARCH (type "all")
+
+NodeA -> PubSubA: SearchPublishEvent(ctx, dt, "all", user, "gpu")
+PubSubA -> PubSubA: publishEvent(PB_SEARCH, user, {search:"gpu"})
+PubSubA -> PubSubA: GenerateNodeID() → from = DID_A
+PubSubA -> PubSubA: priv_A.Sign(event body) → sig
+PubSubA -> PubSubA: Build Event{Type:"search", From:DID_A, Payload:{search:"gpu"}, Sig}
+
+PubSubA -> GossipSub: topic.Join("search")
+PubSubA -> GossipSub: topic.Publish(ctx, json(Event))
+
+GossipSub --> NodeB: Message propagé (gossip mesh)
+
+NodeB -> PubSubB: subscribeEvents écoute topic "search#"
+PubSubB -> PubSubB: json.Unmarshal → Event{From: DID_A}
+
+PubSubB -> NodeB: GetPeerRecord(ctx, DID_A)
+note over NodeB: Résolution Pair A via DB B ou Indexer
+NodeB --> PubSubB: Peer A {PublicKey_A, Relation, ...}
+
+PubSubB -> PubSubB: event.Verify(Peer A) → valide sig_A
+PubSubB -> PubSubB: handleEventSearch(ctx, evt, PB_SEARCH)
+
+PubSubB -> StreamB: SendResponse(Peer A, evt)
+StreamB -> DBB: Search(COMPUTE + STORAGE + ..., filters{creator=self, access=PUBLIC OR partnerships[PeerID_A]}, search="gpu")
+DBB --> StreamB: [Resource1, Resource2, ...]
+
+loop Pour chaque ressource matchée
+    StreamB -> StreamB: write(PeerID_A, addr_A, dt, resource JSON, ProtocolSearchResource)
+    StreamB -> StreamA: NewStream /opencloud/resource/search/1.0
+    StreamB -> StreamA: json.Encode(Event{Type:search, From:DID_B, DataType, Payload:resource})
+end
+
+StreamA -> StreamA: readLoop → handleEvent(ProtocolSearchResource, evt)
+StreamA -> StreamA: retrieveResponse(evt)
+StreamA -> NATSA: SetNATSPub(SEARCH_EVENT, {DataType, resource JSON})
+NATSA -> AppA: Résultats de recherche de Pair B
+
+@enduml