Fix edit job API. Use user timezone, pass all reqd. params to automation

- Pass user and calling_url to the scheduled chat too when modifying
  params of automation
- Update to use user timezone even when update job via API
- Move timezone string to timezone object calculation into the
  schedule automation method

src/khoj/routers/api.py

@@ -34,7 +34,6 @@ from khoj.routers.helpers import (
     ApiUserRateLimiter,
     CommonQueryParams,
     ConversationCommandRateLimiter,
-    create_automation,
     schedule_automation,
     update_telemetry_state,
 )
@@ -457,10 +456,8 @@ async def post_automation(
 
     # Schedule automation with query_to_run, timezone, subject directly provided by user
     try:
-        # Get user timezone
-        user_timezone = pytz.timezone(timezone)
         # Use the query to run as the scheduling request if the scheduling request is unset
-        automation = await schedule_automation(query_to_run, subject, crontime, user_timezone, q, user, request.url)
+        automation = await schedule_automation(query_to_run, subject, crontime, timezone, q, user, request.url)
     except Exception as e:
         logger.error(f"Error creating automation {q} for {user.email}: {e}")
         return Response(
@@ -518,14 +515,26 @@ def edit_job(
 
     # Construct updated automation metadata
     automation_metadata = json.loads(automation.name)
+    automation_metadata["scheduling_request"] = q
     automation_metadata["query_to_run"] = query_to_run
     automation_metadata["subject"] = subject.strip()
+    automation_metadata["crontime"] = crontime
 
-    # Modify automation with updated query, subject, crontime
+    # Modify automation with updated query, subject
-    automation.modify(kwargs={"query_to_run": query_to_run, "subject": subject}, name=json.dumps(automation_metadata))
+    automation.modify(
+        name=json.dumps(automation_metadata),
+        kwargs={
+            "query_to_run": query_to_run,
+            "subject": subject,
+            "scheduling_request": q,
+            "user": user,
+            "calling_url": request.url,
+        },
+    )
 
     # Reschedule automation if crontime updated
-    trigger = CronTrigger.from_crontab(crontime)
+    user_timezone = pytz.timezone(timezone)
+    trigger = CronTrigger.from_crontab(crontime, user_timezone)
     if automation.trigger != trigger:
         automation.reschedule(trigger=trigger)
 

src/khoj/routers/helpers.py

@@ -919,9 +919,8 @@ def scheduled_chat(query_to_run: str, scheduling_request: str, subject: str, use
 
 
 async def create_automation(q: str, timezone: str, user: KhojUser, calling_url: URL, meta_log: dict = {}):
-    user_timezone = pytz.timezone(timezone)
     crontime, query_to_run, subject = await schedule_query(q, meta_log)
-    job = await schedule_automation(query_to_run, subject, crontime, user_timezone, q, user, calling_url)
+    job = await schedule_automation(query_to_run, subject, crontime, timezone, q, user, calling_url)
     return job, crontime, query_to_run, subject
 
 
@@ -929,11 +928,12 @@ async def schedule_automation(
     query_to_run: str,
     subject: str,
     crontime: str,
-    user_timezone,
+    timezone: str,
     scheduling_request: str,
     user: KhojUser,
     calling_url: URL,
 ):
+    user_timezone = pytz.timezone(timezone)
     trigger = CronTrigger.from_crontab(crontime, user_timezone)
     # Generate id and metadata used by task scheduler and process locks for the task runs
     job_metadata = json.dumps(