thermograph/frontend/static/day.html
Emi Griffith 0ddc457d8c UI product-event instrumentation (design + flagged-off prototype)
Extends the existing /api/v2/event beacon into a small, typed, durable event
schema so the interactive views can answer product questions the request log
cannot: whether a visitor ever gets a location, whether search finds anything,
which controls and views earn their maintenance, and which dead ends people
actually hit.

Seven events with three enum dimension slots, stored as hourly aggregates in a
TimescaleDB hypertable plus one JSONL line per event for the 30-day Loki view.
No row per interaction and no column an identifier could go in: no cookie, no
session id, no user id, no IP, no coordinates, no free text, no URLs. The IP is
a per-minute rate-limit key and nothing else.

Abuse resistance for a public endpoint on a 60%-crawler site: closed allowlist
(unknown names collapse to one bucket), 4 KB streaming body cap, per-IP ceiling
raised to 120/min (30 was sized for four coarse events and would have silently
truncated a batched stream), soft Sec-Fetch-Site first-party check, uniform 204.

Ships inert -- THERMOGRAPH_EVENTS gates both the recorder and the flag stamp on
<html> that makes the client send anything, and is unset everywhere. See
UI-EVENTS.md for the schema, the rejected transport/storage alternatives, and
the privacy decisions that must be settled before the flag is turned on.
2026-07-23 15:49:55 -07:00

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>Thermograph: a single day</title>
<meta name="description" content="One day's weather in full detail: every percentile tier for that date and place, and exactly where the day's high, low, feels-like, wind and rain landed against local history." />
<meta name="theme-color" content="#f0803c" />
<!-- iOS/Android home-screen install: run standalone (no browser chrome) when
added to the Home Screen. On iOS 16.4+ this is what unlocks Web Push. -->
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
<meta name="apple-mobile-web-app-title" content="Thermograph" />
<!-- Link previews (Discord, Slack, iMessage…). The server fills the og:url /
og:image origins in from this request's scheme://host + base path —
crawlers need absolute URLs and don't run JS. -->
<meta property="og:type" content="website" />
<meta property="og:site_name" content="Thermograph" />
<meta property="og:title" content="Thermograph: a single day" />
<meta property="og:description" content="One day's weather in full detail: every percentile tier for that date and place, and exactly where the day's high, low, feels-like, wind and rain landed against local history." />
<meta property="og:url" content="__ORIGIN__/day" />
<meta property="og:image" content="__ORIGIN__/logo.png?v=3" />
<meta property="og:image:width" content="512" />
<meta property="og:image:height" content="512" />
<meta property="og:image:alt" content="Thermograph logo" />
<meta name="twitter:card" content="summary" />
<link rel="canonical" href="__ORIGIN__/day" />
<link rel="icon" href="favicon.svg?v=3" type="image/svg+xml" />
<link rel="icon" href="favicon-48.png?v=3" type="image/png" sizes="48x48" />
<link rel="icon" href="favicon-32.png?v=3" type="image/png" sizes="32x32" />
<link rel="icon" href="favicon-16.png?v=3" type="image/png" sizes="16x16" />
<link rel="apple-touch-icon" href="apple-touch-icon.png?v=3" />
<link rel="manifest" href="manifest.webmanifest" />
<link rel="stylesheet" href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css" />
<link rel="stylesheet" href="style.css" />
</head>
<body>
<header>
<div class="brand">
<div>
<h1><a href="./"><span class="logo"><svg viewBox="0 0 512 512" width="28" height="28" aria-hidden="true"><rect x="32" y="32" width="448" height="448" rx="96" fill="#10141B" stroke="#FFFFFF" stroke-opacity="0.08" stroke-width="4"/><rect x="115" y="403" width="42" height="42" rx="10" fill="#111924"/><rect x="163" y="403" width="42" height="42" rx="10" fill="#111924"/><rect x="211" y="403" width="42" height="42" rx="10" fill="#111924"/><rect x="259" y="403" width="42" height="42" rx="10" fill="#111924"/><rect x="307" y="403" width="42" height="42" rx="10" fill="#111924"/><rect x="355" y="403" width="42" height="42" rx="10" fill="#111924"/><rect x="403" y="403" width="42" height="42" rx="10" fill="#111924"/><rect x="163" y="355" width="42" height="42" rx="10" fill="#131C25"/><rect x="211" y="355" width="42" height="42" rx="10" fill="#131C25"/><rect x="259" y="355" width="42" height="42" rx="10" fill="#131C25"/><rect x="307" y="355" width="42" height="42" rx="10" fill="#131C25"/><rect x="355" y="355" width="42" height="42" rx="10" fill="#131C25"/><rect x="403" y="355" width="42" height="42" rx="10" fill="#131C25"/><rect x="67" y="307" width="42" height="42" rx="10" fill="#181F27"/><rect x="163" y="307" width="42" height="42" rx="10" fill="#181F27"/><rect x="211" y="307" width="42" height="42" rx="10" fill="#181F27"/><rect x="259" y="307" width="42" height="42" rx="10" fill="#181F27"/><rect x="307" y="307" width="42" height="42" rx="10" fill="#181F27"/><rect x="355" y="307" width="42" height="42" rx="10" fill="#181F27"/><rect x="403" y="307" width="42" height="42" rx="10" fill="#181F27"/><rect x="67" y="259" width="42" height="42" rx="10" fill="#131C1F"/><rect x="211" y="259" width="42" height="42" rx="10" fill="#131C1F"/><rect x="403" y="259" width="42" height="42" rx="10" fill="#131C1F"/><rect x="67" y="211" width="42" height="42" rx="10" fill="#1E1E22"/><rect x="115" y="211" width="42" height="42" rx="10" fill="#1E1E22"/><rect x="211" y="211" width="42" height="42" rx="10" fill="#1E1E22"/><rect x="307" y="211" width="42" height="42" rx="10" fill="#1E1E22"/><rect x="67" y="163" width="42" height="42" rx="10" fill="#1D1C1E"/><rect x="115" y="163" width="42" height="42" rx="10" fill="#1D1C1E"/><rect x="307" y="163" width="42" height="42" rx="10" fill="#1D1C1E"/><rect x="355" y="163" width="42" height="42" rx="10" fill="#1D1C1E"/><rect x="67" y="115" width="42" height="42" rx="10" fill="#1C191E"/><rect x="115" y="115" width="42" height="42" rx="10" fill="#1C191E"/><rect x="163" y="115" width="42" height="42" rx="10" fill="#1C191E"/><rect x="211" y="115" width="42" height="42" rx="10" fill="#1C191E"/><rect x="259" y="115" width="42" height="42" rx="10" fill="#1C191E"/><rect x="307" y="115" width="42" height="42" rx="10" fill="#1C191E"/><rect x="355" y="115" width="42" height="42" rx="10" fill="#1C191E"/><rect x="67" y="67" width="42" height="42" rx="10" fill="#18141B"/><rect x="115" y="67" width="42" height="42" rx="10" fill="#18141B"/><rect x="163" y="67" width="42" height="42" rx="10" fill="#18141B"/><rect x="211" y="67" width="42" height="42" rx="10" fill="#18141B"/><rect x="259" y="67" width="42" height="42" rx="10" fill="#18141B"/><rect x="307" y="67" width="42" height="42" rx="10" fill="#18141B"/><rect x="355" y="67" width="42" height="42" rx="10" fill="#18141B"/><rect x="67" y="403" width="42" height="42" rx="10" fill="#2166ac"/><rect x="67" y="355" width="42" height="42" rx="10" fill="#4393c3"/><rect x="115" y="355" width="42" height="42" rx="10" fill="#4393c3"/><rect x="115" y="307" width="42" height="42" rx="10" fill="#92c5de"/><rect x="115" y="259" width="42" height="42" rx="10" fill="#4a9d5b"/><rect x="163" y="259" width="42" height="42" rx="10" fill="#4a9d5b"/><rect x="163" y="211" width="42" height="42" rx="10" fill="#f6c18a"/><rect x="163" y="163" width="42" height="42" rx="10" fill="#ef9351"/><rect x="211" y="163" width="42" height="42" rx="10" fill="#ef9351"/><rect x="259" y="163" width="42" height="42" rx="10" fill="#ef9351"/><rect x="259" y="211" width="42" height="42" rx="10" fill="#f6c18a"/><rect x="259" y="259" width="42" height="42" rx="10" fill="#4a9d5b"/><rect x="307" y="259" width="42" height="42" rx="10" fill="#4a9d5b"/><rect x="355" y="259" width="42" height="42" rx="10" fill="#4a9d5b"/><rect x="355" y="211" width="42" height="42" rx="10" fill="#f6c18a"/><rect x="403" y="211" width="42" height="42" rx="10" fill="#f6c18a"/><rect x="403" y="163" width="42" height="42" rx="10" fill="#ef9351"/><rect x="403" y="115" width="42" height="42" rx="10" fill="#dd6b52"/><rect x="403" y="67" width="42" height="42" rx="10" fill="#8f0e20"/></svg></span>Thermograph</a></h1>
<p class="tag">Every percentile boundary for one day vs its typical climate</p>
</div>
<details class="nav-menu">
<summary class="nav-toggle" aria-label="Menu"><svg viewBox="0 0 24 24" width="22" height="22" aria-hidden="true" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round"><path d="M4 7h16M4 12h16M4 17h16"/></svg></summary>
<div class="nav-panel">
<nav class="view-nav" aria-label="Views">
<a href="./" data-view="map">Weekly</a>
<a href="calendar" data-view="calendar">Calendar</a>
<a href="day" data-view="day" class="active">Day Detail</a>
<a href="compare" data-view="compare">Compare</a>
<a href="score" data-view="score">Score</a>
<a href="climate">Climate</a>
<a href="alerts">Alerts</a>
</nav>
</div>
</details>
</div>
</header>
<main>
<section class="controls">
<div class="find-bar">
<button type="button" id="find-btn" class="find-btn"></button>
<span id="loc-label" class="loc-label" hidden></span>
</div>
<div class="day-nav">
<button type="button" id="prev-day" class="day-step" title="Previous day" aria-label="Previous day"></button>
<label class="day-date">Day
<input id="date-input" type="date" />
</label>
<button type="button" id="next-day" class="day-step" title="Next day" aria-label="Next day"></button>
</div>
</section>
<div id="day-head" class="cal-head" hidden></div>
<div class="placeholder" id="day-placeholder">
<p>Pick a place and a day, or open this from a day on the map or calendar, to see
the value at every tier boundary for that day's typical climate.</p>
</div>
<div id="day-body"></div>
</main>
<script src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js"></script>
<!-- Product-event beacon. Inert unless the server flagged this page
on the root element; see frontend/static/track.js. -->
<script type="module" src="track.js"></script>
<script type="module" src="day.js"></script>
<script type="module" src="ios-install.js"></script>
</body>
</html>