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# src/reminder_handler.py
import logging
import configparser
from datetime import datetime, timezone
from config_paths import CONFIG_PATH, REMINDERS_DB_PATH
import db_utils
from db_utils import get_past_reminders_for_user
# Load config to get MaxAlertsPerUser
config = configparser.ConfigParser()
config.read(CONFIG_PATH)
SHOW_PAST_REMINDERS_COUNT = config.getint('Reminders', 'ShowPastRemindersCount', fallback=0)
try:
MAX_ALERTS_PER_USER = config.getint('Reminders', 'MaxAlertsPerUser', fallback=30)
except configparser.NoSectionError:
MAX_ALERTS_PER_USER = 30
# Get a logger for this module
logger = logging.getLogger(__name__)
# Ensure logs bubble up to the root logger (which has the timestamp format)
logger.propagate = True
# DO NOT setLevel or add handlers here; rely on main.py or root config for formatting
async def handle_add_reminder(user_id, chat_id, reminder_text, due_time_utc_str):
"""
Create a new reminder for user 'user_id', to be delivered in chat 'chat_id'
at time 'due_time_utc_str' (ISO8601 UTC).
'reminder_text' is the user-provided note.
Returns a string describing success/failure to be inserted
into the chat conversation.
"""
# 1) Check if DB is initialized
if not db_utils.DB_INITIALIZED_SUCCESSFULLY:
logger.error("Attempt to add reminder but DB not initialized!")
return "Error: DB not available. Reminders cannot be added."
# 2) Validate/parse time format
try:
datetime.strptime(due_time_utc_str, '%Y-%m-%dT%H:%M:%SZ')
except ValueError:
logger.warning(f"User {user_id} attempted to add reminder with invalid due_time_utc: {due_time_utc_str}")
return (
"The time format is invalid. "
"Please specify in ISO8601 UTC, e.g. 2025-01-02T13:00:00Z "
"or convert user-friendly times to UTC first."
)
# 3) Check user's current reminder count
current_count = db_utils.count_pending_reminders_for_user(REMINDERS_DB_PATH, user_id)
# Only enforce the limit if it's > 0
if MAX_ALERTS_PER_USER > 0 and current_count >= MAX_ALERTS_PER_USER:
logger.info(f"User {user_id} has {current_count} reminders; reached max of {MAX_ALERTS_PER_USER}.")
return f"You already have {current_count} pending reminders. The maximum is {MAX_ALERTS_PER_USER}."
# 4) Add to DB
reminder_id = db_utils.add_reminder_to_db(
REMINDERS_DB_PATH, user_id, chat_id, reminder_text, due_time_utc_str
)
if reminder_id:
logger.info(
f"User {user_id} created reminder #{reminder_id}: "
f"'{reminder_text}' at {due_time_utc_str}"
)
return (
f"Your reminder (#{reminder_id}) has been set for {due_time_utc_str} (UTC). "
f"Message: '{reminder_text}'"
)
else:
logger.error(f"Failed to add reminder to DB for user {user_id}. Possibly DB error.")
return "Failed to add your reminder due to a database error. Sorry!"
async def handle_view_reminders(user_id):
"""
Return a string summarizing all of the user's pending reminders
(status='pending'). If none exist, say so.
"""
if not db_utils.DB_INITIALIZED_SUCCESSFULLY:
logger.error("Attempt to view reminders but DB not available!")
return "Error: DB not available. Cannot view reminders."
# 1) Get the pending
pending_reminders = db_utils.get_pending_reminders_for_user(REMINDERS_DB_PATH, user_id)
if pending_reminders:
lines = ["<b>Your current (pending) reminders:</b>"]
for idx, r in enumerate(pending_reminders, start=1):
rid = r['reminder_id']
text = r['reminder_text']
due_utc = r['due_time_utc']
lines.append(f"• Reminder #{idx} (ID {rid}) due <i>{due_utc}</i>\n “{text}”")
pending_section = "\n".join(lines)
else:
pending_section = "You have no <b>pending</b> reminders."
# 2) Optionally get the past ones
if SHOW_PAST_REMINDERS_COUNT > 0:
past = get_past_reminders_for_user(REMINDERS_DB_PATH, user_id, SHOW_PAST_REMINDERS_COUNT)
if past:
lines = [f"<b>Up to {SHOW_PAST_REMINDERS_COUNT} most recent past reminders:</b>"]
for idx, r in enumerate(past, start=1):
rid = r['reminder_id']
text = r['reminder_text']
due_utc = r['due_time_utc']
status = r['status']
lines.append(f"• (ID {rid}) was <i>{status}</i> at {due_utc}, text: “{text}”")
past_section = "\n".join(lines)
else:
past_section = "(No past reminders found.)"
else:
past_section = "" # or omit entirely
# 3) Combine them for your final message
full_msg = f"{pending_section}\n\n{past_section}".strip()
return full_msg
# // old logic; no past reminders
# reminders = db_utils.get_pending_reminders_for_user(REMINDERS_DB_PATH, user_id)
# if not reminders:
# logger.info(f"User {user_id} has no pending reminders.")
# return "You currently have no pending reminders."
# logger.info(f"User {user_id} is viewing {len(reminders)} reminders.")
# lines = ["Here are your current reminders:"]
# for r in reminders:
# rid = r['reminder_id']
# text = r['reminder_text']
# due_utc = r['due_time_utc']
# lines.append(f"• Reminder #{rid}: due {due_utc}, text: '{text}'")
# return "\n".join(lines)
async def handle_delete_reminder(user_id, reminder_id):
"""
Delete a reminder by ID. Only deletes if it belongs to 'user_id'.
Returns success/failure text.
"""
if not db_utils.DB_INITIALIZED_SUCCESSFULLY:
logger.error("Attempt to delete reminder but DB not available!")
return "Error: DB not available. Cannot delete reminders."
success = db_utils.delete_reminder_from_db(REMINDERS_DB_PATH, reminder_id, user_id)
if success:
logger.info(f"User {user_id} deleted reminder #{reminder_id}.")
return f"Reminder #{reminder_id} has been deleted."
else:
logger.warning(
f"User {user_id} tried to delete reminder #{reminder_id}, "
"which didn't exist or didn't belong to them."
)
return f"No reminder #{reminder_id} was found (or it's not yours)."
async def handle_edit_reminder(user_id, reminder_id, new_due_time_utc=None, new_text=None):
"""
Edit the time and/or text of an existing reminder. If new_due_time_utc or new_text
are None, the old value is retained.
Only the user who owns the reminder can edit it.
Return success/failure text for the user.
"""
if not db_utils.DB_INITIALIZED_SUCCESSFULLY:
logger.error("Attempt to edit reminder but DB not initialized!")
return "Error: DB not available. Cannot edit reminders."
# 1) Fetch existing to ensure user owns it
reminder = db_utils.get_reminder_by_id(REMINDERS_DB_PATH, reminder_id)
if not reminder:
logger.warning(f"User {user_id} tried to edit reminder #{reminder_id} which doesn't exist.")
return f"No such reminder #{reminder_id} found."
if reminder['user_id'] != user_id:
logger.warning(f"User {user_id} tried to edit reminder #{reminder_id}, but ownership mismatch.")
return "That reminder doesn't appear to be yours."
# 2) Decide new due_time_utc
if new_due_time_utc:
# Validate it
try:
datetime.strptime(new_due_time_utc, '%Y-%m-%dT%H:%M:%SZ')
except ValueError:
logger.warning(f"User {user_id} gave invalid date for reminder #{reminder_id}: {new_due_time_utc}")
return "Invalid UTC date/time format. Please provide e.g. 2025-01-02T13:00:00Z."
else:
new_due_time_utc = reminder['due_time_utc']
# 3) Decide new text
if not new_text or new_text.strip() == "":
new_text = reminder['reminder_text']
# 4) Update in DB
updated_ok = db_utils.update_reminder(REMINDERS_DB_PATH, reminder_id, new_due_time_utc, new_text)
if updated_ok:
logger.info(
f"User {user_id} edited reminder #{reminder_id} -> new time: "
f"{new_due_time_utc}, new text: '{new_text}'"
)
return (
f"Reminder #{reminder_id} updated! \n"
f"New time: {new_due_time_utc}\nNew text: '{new_text}'"
)
else:
logger.error(
f"User {user_id} tried to edit reminder #{reminder_id}, "
"but update_reminder DB call failed."
)
return "Failed to update your reminder due to a database error."