more sync code

src/solanaceae/crdtnotes/crdtnotes_sync.hpp

@@ -1,8 +1,15 @@
 #pragma once
 
 #include "./crdtnotes.hpp"
+
 #include <solanaceae/contact/contact_model3.hpp>
 
+#include <set>
+#include <random>
+
+// fwd
+struct CRDTNotesContactSyncModelI;
+
 namespace Events {
 
 	// - DocID
@@ -67,6 +74,37 @@ struct CRDTNotesEventI {
 // gets called on incoming packets
 // calls CRDTNotesContactSyncModelI on contacts
 class CRDTNotesSync final : public CRDTNotesEventI {
+	// pull inside????
+	CRDTNotes& _notes;
+	Contact3Registry& _cr;
+
+	std::default_random_engine _rng;
+
+	std::unordered_map<CRDTNotes::DocID, std::set<Contact3Handle>> _docs_contacts;
+
+	public:
+		CRDTNotesSync(CRDTNotes& notes, Contact3Registry& cr);
+
+		~CRDTNotesSync(void);
+
+		// called from main thread periodically
+		float iterate(float time_delta);
+
+	public: // CRDTNotes api
+		CRDTNotes::Doc* getDoc(const CRDTNotes::DocID& doc_id);
+
+		// adds a doc and assosiates contact (and self)
+		// if secret, only self is added (and thats why contact is needed)
+		std::optional<CRDTNotes::DocID> addNewDoc(Contact3Handle c, bool secret = false);
+
+		// adds a doc by id to a contact
+		// (for gossip or manual add)
+		bool addDoc(const CRDTNotes::DocID& doc_id, Contact3Handle c);
+
+		std::vector<CRDTNotes::DocID> getDocList(void);
+		std::vector<CRDTNotes::DocID> getDocList(Contact3Handle c);
+
+		void merge(const CRDTNotes::DocID& doc_id, std::string_view new_text);
 
 	public:
 		void onCRDTNSyncEvent(Events::NGCEXT_crdtns_gossip&& e) override;