Fix sync protocol - sync_with_peer takes peer dict, add get_database support

snip/sync/protocol.py

@@ -4,11 +4,12 @@ import http.server
 import json
 import socketserver
 import threading
+import urllib.request
 from datetime import datetime
 from typing import Any
 from urllib.request import urlopen
 
-from snip.db.database import Database
+from snip.db.database import Database, get_database
 
 
 class SyncRequestHandler(http.server.BaseHTTPRequestHandler):
@@ -52,8 +53,11 @@ class SyncServer(socketserver.TCPServer):
 
 
 class SyncProtocol:
-    def __init__(self, db: Database, port: int = 8765):
-        self.db = db
+    def __init__(self, db: Database | str | None = None, port: int = 8765):
+        if isinstance(db, str) or db is None:
+            self.db = get_database(db)
+        else:
+            self.db = db
         self.port = port
         self.server = None
         self.server_thread = None
@@ -71,24 +75,42 @@ class SyncProtocol:
             self.server.shutdown()
             self.server = None
 
-    def sync_with_peer(self, host: str, port: int) -> int:
+    def sync_with_peer(self, peer: dict[str, Any]) -> dict[str, Any]:
         """Sync snippets with a peer."""
+        host = peer.get("host") or peer.get("addresses", [""])[0]
+        port = peer.get("port", 8765)
+        
         snippets = []
-        synced = 0
+        merged = 0
+        pushed = 0
 
         try:
             with urlopen(f"http://{host}:{port}/snippets", timeout=30) as response:
                 snippets = json.loads(response.read())
-        except Exception:
-            pass
+        except Exception as e:
+            return {"status": "error", "message": str(e)}
 
         for snippet in snippets:
             if "id" in snippet:
                 del snippet["id"]
-            self.db.import_snippet(snippet, strategy="skip")
-            synced += 1
+            result = self.db.import_snippet(snippet, strategy="skip")
+            if result is not None:
+                merged += 1
 
-        return synced
+        local_snippets = self.db.export_all()
+        try:
+            req = urllib.request.Request(
+                f"http://{host}:{port}/snippets",
+                data=json.dumps(local_snippets).encode(),
+                headers={"Content-Type": "application/json"},
+            )
+            with urlopen(req, timeout=30) as response:
+                if response.status == 200:
+                    pushed = len(local_snippets)
+        except Exception:
+            pass
+
+        return {"status": "success", "merged": merged, "pushed": pushed}
 
     def push_to_peer(self, host: str, port: int) -> int:
         """Push local snippets to a peer."""