fix: validate date format in create_schedule with clear error message

src/tryton_mcp/server.py

@@ -4,10 +4,17 @@ MCP Server for Naliia Module
 
 from contextlib import asynccontextmanager
 from fastmcp import FastMCP
-from typing import List, AsyncIterator, Any, Dict
-import datetime
+from typing import List, Dict, AsyncIterator, Any
+from datetime import datetime, timezone
 
 from tryton_mcp.config import settings
+import logging
+
+logging.basicConfig(
+    level=logging.INFO, format="%(asctime)s - %(name)s - %(levelname)s - %(message)s"
+)
+
+logger = logging.getLogger(__name__)
 
 
 @asynccontextmanager
@@ -29,18 +36,63 @@ def tryton_call(name: str, args: list) -> Dict[str, Any]:
         return {"success": False, "error": str(e)}
 
 
+@mcp.tool()
+def find_customer_by_identifier(identifier: str) -> List[Dict]:
+    result = tryton_call(
+        "model.party.identifier.search_read",
+        [
+            [["code", "=", identifier]],
+            0,
+            None,
+            None,
+            ["party", "party.name"],
+            {"company": 1},
+        ],
+    )
+
+    if not result["success"]:
+        raise Exception(f"Customer with identifier {identifier} not found.")
+
+    return result["data"]
+
+
+@mcp.tool()
+def create_customer(
+    name: str, identifiers: List[tuple[str, List[Dict[str, Any]]]]
+) -> List[int]:
+
+    result = tryton_call(
+        "model.party.party.create",
+        [{"name": name, "identifiers": identifiers}, {}],
+    )
+
+    if not result["success"]:
+        raise Exception(f"Failed to create {name} as customer")
+
+    return result["data"]
+
+
 @mcp.tool()
 def create_schedule(
     professional: int, description: str, customer: int, date: str, service_center: int
 ) -> List[int]:
 
+    try:
+        dt = datetime.fromisoformat(date)
+    except ValueError:
+        raise ValueError(
+            f"Invalid date format: '{date}'. Expected ISO format (e.g., '2026-03-15T10:00:00' or '2026-03-15T10:00:00+00:00')"
+        )
+
+    utc_dt = dt.astimezone(timezone.utc)
+
     example_schedule = [
         {
-            "professional": 6,
+            "professional": professional,
             "description": description,
-            "customer": 4,
-            "date": datetime.datetime.fromisoformat(date),
-            "service_center": 11,
+            "customer": customer,
+            "date": utc_dt,
+            "service_center": service_center,
         }
     ]