Public resource display incorrectly marks entire day as reserved when only partial time is booked

[lennert1986]

When attempting to make a reservation on the public resource display page, the availability coloring appears to be incorrect.

If there is already an existing reservation for a limited time period, for example from 08:00 to 10:00, the rest of the day is also shown as reserved/unavailable instead of only that booked time range.

This makes the schedule display misleading, because it looks like the entire remaining day is blocked even though only part of the day is actually reserved.

I am using LibreBooking version 4.2, and I am seeing this on the same resource-display.php public display page.

Observed behavior:

An existing reservation covers only a specific time range, for example 08:00–10:00
After that, the display colors the remaining day as if it is also reserved
The visual availability does not match the actual reservation period

Expected behavior:

Only the actual reserved time range should be shown as reserved
The remaining time slots in the day should remain shown as available, unless they are actually booked

Impact:
This can make users think the resource is fully booked for the day when it is not, which may prevent valid reservations.

[lennert1986]

I experienced an issue where slots were correctly marked as reservable, but were still displayed with the wrong (grey) background color on the resource display page.

As a test/workaround, I modified the template file resource-display-resource.tpl and removed the inline color output:

<td colspan="{$slot->PeriodSpan()}" {$color} ...>

changed to:

<td colspan="{$slot->PeriodSpan()}"
    data-begin="{$slot->Begin()}"
    data-end="{$slot->End()}"
    class="slot {$class}"
    data-refnum="{$referenceNumber}">

After removing {$color}, the visual rendering matched the actual slot state (reservable, reserved, etc.).

I am not certain if this is the correct fix, but it resolved the issue in my case. It appears that the inline color may override the CSS class-based styling.

Leaving it up to the maintainers to determine the proper solution.