Refactor logging implementation to use Loguru for improved logging management and add warnings for unknown leave values and worker site validation.

gen_cons.py

@@ -17,6 +17,7 @@ from rota.workers import (
     OutOfProgramme,
 )
 
+from loguru import logger
 
 app = typer.Typer()
 
@@ -68,6 +69,8 @@ def extract_leave_and_rota_from_calender(calender_df):
                     "date": date,
                     "worker": worker,
                 })
+            else:
+                logger.warning(f"Unknown leave value for {worker} on {date}: {leave_val}")
 
     #print(leave_requests)
     return leave_requests, work_requests, rota_data

rota/shifts.py

@@ -34,14 +34,9 @@ from rich.progress import track
 from rich.panel import Panel
 from rich import print
 
-import logging
+from loguru import logger
 
-logging.basicConfig(
+logger.add("rota.log", rotation="1 MB", level="DEBUG")
-    filename="rota.log",
-    filemode="w",
-    format="%(name)s - %(levelname)s - %(message)s",
-    level=logging.DEBUG,
-)
 
 ShiftName = str
 DayStr = str
@@ -413,7 +408,7 @@ class RotaBuilder(object):
             "Shift/invalid start date",
             "Shift/invalid end date",
             "Locum/no locum availability",
-            "Force assignment/leave conflict", # Currently will always be infeasible
+            #"Force assignment/leave conflict", # Currently will always be infeasible
         ]
 
         self.results = None
@@ -1515,7 +1510,7 @@ class RotaBuilder(object):
             console.rule(
                 f"Generate worker constraints: [bold blue]{worker.name}[/bold blue]"
             )
-            logging.debug(f"Generate worker constraints: {worker.name}")
+            logger.debug(f"Generate worker constraints: {worker.name}")
 
             for week, day in self.get_week_day_combinations():
                 shifts_today = self.get_shift_names_by_week_day(week, day)
@@ -3312,6 +3307,7 @@ class RotaBuilder(object):
 
             if worker.site not in self.sites:
                 message = f"Worker with name '{worker.name}' ({worker.id}) has no valid shifts (site: {worker.site})"
+                logger.warning(message)
                 self.add_warning("Worker/no valid shifts", message)
 
 
@@ -4540,8 +4536,32 @@ class RotaBuilder(object):
                 f"Shift balance extra: {getattr(worker, 'shift_balance_extra', '')}",
                 f"Non-working days: {getattr(worker, 'non_working_day_list', '')}",
                 f"OOP: {getattr(worker, 'oop', '')}",
+                f"Unavailable: {''}",
                 f"Shift targets: {json.dumps(getattr(worker, 'shift_target_number', {}))}",
             ]
+            # Build unavailability list for this worker
+            unavail_list = []
+            for entry in sorted(self.unavailable_to_work):
+                wid, wk, d = entry
+                if wid != worker.id:
+                    continue
+                date = self.get_date_by_week_day(wk, d)
+                reason = self.unavailable_to_work_reason.get((wid, wk, d), "")
+                if reason:
+                    unavail_list.append(f"{date.isoformat()} ({d}) [week {wk}]: {reason}")
+                else:
+                    # date may be a string if fallback used
+                    if isinstance(date, str):
+                        unavail_list.append(f"{date} ({d}) [week {wk}]")
+                    else:
+                        unavail_list.append(f"{date.isoformat()} ({d}) [week {wk}]")
+
+            # replace placeholder Unavailable entry
+            details = [line for line in details if not line.startswith("Unavailable:")]
+            details.insert(
+                -1,  # before Shift targets
+                f"Unavailable: {', '.join(unavail_list) if unavail_list else ''}",
+            )
             worker_details_human.append("\n".join(details))
         worker_details_human_str = "\n\n".join(worker_details_human)