thermograph/frontend/static/day.html
Emi Griffith 35b58300cb UI events v2: consented session tier, failed-search capture, privacy rewrite
Three operator decisions change v1's premises, so the design is now two tiers
with separate flags:

Tier A (THERMOGRAPH_EVENTS) is v1 unchanged -- anonymous hourly aggregates, no
identifier, nothing stored on the device, no consent needed, runs for everyone.
It stays the primary signal precisely so a poor consent rate cannot take the
numbers down with it, and so Tier B's rates can be calibrated against it to
measure the consent bias rather than ignoring it.

Tier B (THERMOGRAPH_EVENT_SESSIONS) adds an ephemeral per-tab id -- 16 random
bytes in sessionStorage, rotating on a 30-minute idle and a 2-hour absolute cap,
capped at 200 events, never linked to another session, device, or to the account
(api_event does not read the auth cookie and there is no user column). Rows land
in a 30-day hypertable with minute-granularity timestamps and an in-session
sequence number instead of precise clock times. Storing an identifier engages
ePrivacy Art. 5(3) and analytics is not strictly necessary, so it is gated on
opt-in consent: an equal-weight banner that mints nothing before "Allow",
one-click withdrawal in every footer that drops the live id immediately, and
GPC/DNT treated as a refusal already given.

THERMOGRAPH_SEARCH_MISS captures zero-result search text server-side in
api_suggest only -- normalised, rejected outright on any personal-data smell,
stored as a per-day count, and pruned below a three-person floor after a week.

The privacy page is rewritten rather than deferred: "no per-visitor identifier"
becomes false the moment Tier B ships. Tests assert the load-bearing promises so
the copy and the code cannot drift apart silently.

Raw-IP truncation is NOT implemented here (the logging pipeline owns it) but
UI-EVENTS.md states what the app side must do, and records that Caddy's default
JSON log already stores full request URIs -- so every search query is in Loki
with the client IP today, which the search-miss mitigations depend on fixing.

UI-EVENTS.md carries the v1-to-v2 diff, the consent reasoning including why
legitimate interest is not available, and an explicit argument that the session
identifier is the wrong trade at this traffic volume.
2026-07-23 16:11:06 -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" />
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<meta name="apple-mobile-web-app-title" content="Thermograph" />
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<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="consent.js"></script>
<script type="module" src="track.js"></script>
<script type="module" src="day.js"></script>
<script type="module" src="ios-install.js"></script>
</body>
</html>