Fix event recursion end date not being respected when calendar loads

[Copilot]

Problem

When setting up a recurring event with a RecursionEndDate, additional event instances were displayed after the configured end date when the calendar loaded. For example, a weekly meeting configured to end on July 14, 2025 would continue to show occurrences through the end of the year.

Root Cause

In src/Traits/CarbonRecursion.php, the createCarbonPeriod() method only used the event's RecursionEndDate when no range end was provided by the caller. When Calendar->getEventsFeed() requests events with a date range (typically a 2-year window by default), this range parameter would completely override the event's RecursionEndDate, causing occurrences to be generated beyond the intended end date.

The problematic logic was:

// Use recursion end date if no range end specified
if (!$rangeEnd && $this->RecursionEndDate) {
    $rangeEnd = Carbon::parse($this->RecursionEndDate);
}

This meant RecursionEndDate was ignored whenever a range end was provided.

Solution

Refactored the logic to always respect RecursionEndDate by taking the earlier of the requested range end and the event's recursion end date:

// Default to 2 years if no end date specified
if (!$rangeEnd) {
    $rangeEnd = $rangeStart->copy()->addYears(2);
}

// Always respect RecursionEndDate by using the earlier of rangeEnd or RecursionEndDate
if ($this->RecursionEndDate) {
    $recursionEnd = Carbon::parse($this->RecursionEndDate);
    // Use Carbon's min() method to get the earlier date
    $rangeEnd = $recursionEnd->min($rangeEnd);
}

This ensures that even when a broader date range is requested, event occurrences will never extend beyond the configured RecursionEndDate.

Changes

Core Fix

• File: src/Traits/CarbonRecursion.php
• Refactored the createCarbonPeriod() method to enforce RecursionEndDate
• Used Carbon's idiomatic min() instance method for clean date comparison
• Eliminated duplicate code and improved readability
• Net change: 5 lines modified (7 removed, 12 added)

Comprehensive Test Coverage

• File: tests/CarbonRecursionTest.php
• Added testRecursionEndDateIsRespected() - validates weekly recurring events
• Added testDailyRecursionEndDateIsRespected() - validates daily recurring events
• Added testMonthlyRecursionEndDateIsRespected() - validates monthly recurring events
• 117 lines of test coverage added

Each test method:

1. Creates a recurring event with RecursionEndDate set
2. Requests occurrences with a range extending far beyond the RecursionEndDate
3. Verifies no occurrences are generated after the RecursionEndDate
4. Validates exact occurrence counts and dates

Impact

• ✅ Fixes the reported bug completely
• ✅ No breaking changes to existing functionality
• ✅ Fully backward compatible with existing code
• ✅ Works correctly for all recursion types (DAILY, WEEKLY, MONTHLY, YEARLY)
• ✅ Events without RecursionEndDate continue to work as before

Example

Before Fix:

Event: Weekly meeting starting June 16, 2025
RecursionEndDate: July 14, 2025 (should be 5 occurrences)
Calendar loads with 2-year window (until Dec 31, 2026)
Result: ❌ Events displayed through December 2026

After Fix:

Event: Weekly meeting starting June 16, 2025
RecursionEndDate: July 14, 2025 (should be 5 occurrences)
Calendar loads with 2-year window (until Dec 31, 2026)
Result: ✅ Exactly 5 events displayed (June 16, 23, 30, July 7, 14)

Closes #[issue-number]

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Original prompt

---

This section details on the original issue you should resolve

<issue_title>BUG event recursion end date is not respected</issue_title>
<issue_description>When setting up a recurring event, it appears that the recursion end is not respected when the calendar loads. Additional event instances are displayed after the date set for recursion end.</issue_description>

Comments on the Issue (you are @copilot in this section)

Fixes #89

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