Stats picks a window and opens a day

[klausbreyer]

The Stats screen showed the last thirty days and nothing else. No older numbers, no way to ask what happened on one day, and the top entries counted all time while every other table counted the window.

What it does now

• A window to choose. 7, 30, 90 or 365 days, or all time, as a row of links over the figures. The choice stands in the address (?days=90), so the back button and a copied link keep it.
• Bars that fit the window. Up to sixty days a bar is a day, up to a year a week (Monday first), above that a month. All time starts at the month of the first view. The heading says "by week" or "by month" when a bar is no day, and a series in months carries the year on its axis.
• A bar opens. A click shows what was read in those days (entries and other addresses in one list, with views and people) and where the readers came from, under the chart. The address remembers the open bar (&day=2026-08-18). A second click, or "close", shuts it.
• Top entries count the window, with a People column beside Views.
• The figures say how the window moved against the one just before it: "views, last 30 days · +12 %". All time has nothing before it and says nothing.

Nothing new is counted. Every number comes from the rows that were already there.

How

Texttile.Stats reads a span (%{from, to}, from: nil for all time) instead of a count of days. window/2 builds one, series/2 draws it in bars, bar/2 finds the bar that holds a day, and a bar is itself a span, so the open bar is read with the same summary/1, pages_read/1 and referrers/2 as the whole window. StatsLive keeps its whole state in handle_params; a bar click is a push_patch. The editor's Stats tab draws its chart from the same series and is otherwise unchanged.

Checked

• mix precommit: 1443 tests, 0 failures. Unit tests for the span, the three bar sizes, the window before, the bar lookup and pages_read; LiveView tests for the address, the click, the close, a day outside the window, the comparison and the People column; the browser flow clicks a bar and switches the window.
• Visual QA in a headless browser at 1440x900 and 390x844: 30 days with a bar open, 90 days in weeks, all time in months. The chart counts exactly the window (the first week or month bar starts at its edge). The bar's tap area is the whole column height, so a low bar is as easy to hit on a phone as a tall one.
• German translated, the template up to date.

Version

3.0.5 to 3.1.0.

Claude Fable 5 in Claude Code did the work.