Sohail: Fix bugs preventing 4am cron job from sending follow-up emails

[sohailuddinsyed]

Description

Follow-up fix to PR #1788 - Blue Square Email Automation. After the original PR was merged into production, the 12 AM blue square assignment emails worked correctly, but the 4 AM follow-up emails were not being sent.

Related PRs

• Original PR: Sohail and Anthony - BLUE SQUARE EMAIL AUTOMATION #1788 (already merged)
• No frontend PR needed

Main Changes Explained

1. Fixed Critical Time Range Bug in completeHoursAndMissedSummary

Issue: Function was checking the CURRENT week's hours instead of LAST week's hours.

Impact: When running at 4 AM on Sunday (start of new week), users had only logged 0-4 hours in the current week, causing timeNotMet to always be true. This prevented emails from being sent to users who completed their hours but forgot their summary.

Fix: Changed from pdtStartOfCurrentWeek/pdtEndOfCurrentWeek to pdtStartOfLastWeek/pdtEndOfLastWeek.

Additional Fix: Corrected array bounds check from length >= 1 to length > 1 to prevent accessing weeklySummaries[1] when array only has 1 element.

2. Fixed Critical Time Range Bug in inCompleteHoursEmailFunction

Issue: Function was checking the CURRENT week's hours instead of LAST week's hours.

Impact: Same as above - users appeared to have completed 0% of hours when checked at 4 AM Sunday, causing incorrect email logic evaluation.

Fix: Changed from pdtStartOfCurrentWeek/pdtEndOfCurrentWeek to pdtStartOfLastWeek/pdtEndOfLastWeek.

3. Verified weeklyBlueSquareReminderFunction (No Bugs Found)

Status: This function was already correctly checking last week's hours.

Enhancement: Added comprehensive logging to help debug why emails might not be sent (function is intentionally selective based on user tenure and infringement history).

4. Added Comprehensive Logging

Added detailed console logs to all three functions for production debugging:

• Function execution start with user count
• Week ranges being checked
• Per-user condition evaluations
• Email sending confirmations
• Blue square assignment details

Root Cause Analysis

The 12 AM job (assignBlueSquareForTimeNotMet) was already correctly checking last week's hours, which is why those emails worked. However, the 4 AM follow-up functions were inadvertently checking the current week (which just started 4 hours ago), causing them to fail their conditions and skip sending emails.

Expected Behavior After Fix

At 12:00 AM PST Sunday

assignBlueSquareForTimeNotMet runs:

• ✅ Assigns blue squares (already working)
• ✅ Sends initial notification emails (already working)

At 4:00 AM PST Sunday (4 hours later)

completeHoursAndMissedSummary:

• ✅ NOW WORKS: Correctly identifies users who met hours but missed summary
• ✅ Sends "Reply All" reminder emails

inCompleteHoursEmailFunction:

• ✅ NOW WORKS: Correctly identifies users who completed 25-99% of hours
• ✅ Sends appropriate follow-up emails based on completion percentage

weeklyBlueSquareReminderFunction:

• ✅ ALREADY WORKING: Sends contextual reminders based on user history/tenure
• ✅ Enhanced with better logging for debugging

How to Test

Use Test Script (Recommended)

node src/scripts/testEmailJobs.js

Important

Follow instructions in the test script documentation from PR #1788.

What to Verify

• ✅ Correct week ranges in logs (e.g., "2026-02-09 to 2026-02-15" not "2026-02-16 to 2026-02-22")
• ✅ Correct time calculations for last week
• ✅ Email conditions being properly evaluated
• ✅ Emails sent with correct threading parameters
• ✅ Email threading works (multiple emails appear as single conversation)

Important Notes

• This is a critical hotfix for production
• The original PR Sohail and Anthony - BLUE SQUARE EMAIL AUTOMATION #1788 introduced the email automation but had these time range bugs
• No changes to email templates or threading logic - only time range fixes
• All three functions now correctly check LAST week's data as intended