feat(water-log): cycle 6 — worker sub-PWA at /water scope

Same-origin sub-PWA for Tuxedo field workers, fully isolated from the
main Route Commerce PWA.

- public/manifest-field.json: Tuxedo-branded manifest, start_url=/water,
  scope=/water, themeColor=#14532d, no Route Commerce branding
- public/sw-field.js: scoped SW with field-shell-v1 + field-data-v1
  caches (never touches main app's rc-shell-v* / rc-data-v*). Skips
  any request outside /water scope. Two-cache strategy: shell
  cache-first + /api/water stale-while-revalidate.
- src/app/water/layout.tsx: child layout overrides root metadata
  (manifest, themeColor, applicationName, appleWebApp.title) and
  mounts the field SW registration + install prompt.
- src/components/pwa/FieldSWRegistration.tsx: registers /sw-field.js
  with scope=/water. Module-scoped registered flag prevents strict-
  mode double-registration.
- src/components/pwa/FieldInstallPrompt.tsx: sibling of InstallPrompt,
  forest-green #1a4d2e theming, fires after 4s dwell. Captures
  display-mode:standalone AND navigator.standalone for iOS.

No conflict with the main app PWA: PWAInstallPrompt is mounted only
under /admin/layout.tsx, so /water routes only see FieldInstallPrompt.

Tuxedo-only by design (matches existing /water single-tenant hardcode).
This commit is contained in:
RouteComm Dev
2026-07-03 18:48:39 -06:00
parent b793cd6955
commit 089d77aa68
5 changed files with 415 additions and 0 deletions
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{
"name": "Water Log — Tuxedo",
"short_name": "Water Log",
"description": "Field access for Tuxedo water + time tracking",
"start_url": "/water",
"scope": "/water",
"display": "standalone",
"background_color": "#f2f2f7",
"theme_color": "#14532d",
"orientation": "portrait-primary",
"icons": [
{ "src": "/icons/icon-192x192.png", "sizes": "192x192", "type": "image/png", "purpose": "any" },
{ "src": "/icons/icon-512x512.png", "sizes": "512x512", "type": "image/png", "purpose": "any" },
{ "src": "/icons/icon-maskable-512x512.png", "sizes": "512x512", "type": "image/png", "purpose": "maskable" }
],
"categories": ["productivity", "utilities"]
}
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// public/sw-field.js — Tuxedo field-worker service worker.
//
// Cycle 6 sub-PWA, scoped to /water. Tighter cache strategy than
// the main shell SW because:
// - The field app is a thin surface (PIN, headgate list, log form,
// time tab). Few async chunks; mostly static + the latest data
// snapshot.
// - "Offline" here means "still see the cached PIN screen + headgate
// list" — water entry without connectivity is a degraded but
// non-blocking experience (the form queue handles drafts).
//
// Cache names are deliberately prefixed with `field-` so they never
// collide with the main `rc-shell-v*` / `rc-data-v*` caches.
const SHELL_CACHE = "field-shell-v1";
const DATA_CACHE = "field-data-v1";
const OFFLINE_URL = "/offline.html";
const SHELL_ASSETS = [
"/water",
"/manifest-field.json",
"/favicon.svg",
"/og-default.svg",
"/offline.html",
"/icons/icon-192x192.png",
"/icons/icon-512x512.png",
];
self.addEventListener("install", (event) => {
event.waitUntil(
caches.open(SHELL_CACHE).then((cache) => cache.addAll(SHELL_ASSETS))
);
self.skipWaiting();
});
self.addEventListener("activate", (event) => {
// Only manage field-* caches — never touch the main app's caches.
event.waitUntil(
Promise.all([
caches.keys().then((cacheNames) => {
const toDelete = [];
for (const name of cacheNames) {
if (
name !== SHELL_CACHE &&
name !== DATA_CACHE &&
name.startsWith("field-")
) {
toDelete.push(caches.delete(name));
}
}
return Promise.all(toDelete);
}),
self.clients.claim(),
])
);
});
self.addEventListener("fetch", (event) => {
const req = event.request;
if (req.method !== "GET") return;
const url = new URL(req.url);
if (url.origin !== self.location.origin) return;
// Out-of-scope requests: skip (let the main app SW handle them
// if it's installed for that scope; fall through to network).
if (!url.pathname.startsWith("/water")) return;
// Navigations → network-first, fall back to cache, fall back to offline page.
if (req.mode === "navigate") {
event.respondWith(
fetch(req)
.then((res) => {
const clone = res.clone();
caches.open(SHELL_CACHE).then((cache) => cache.put(req, clone));
return res;
})
.catch(() =>
caches.match(req).then(
(cached) => cached ?? caches.match(OFFLINE_URL),
),
),
);
return;
}
// Static assets → cache-first
if (
url.pathname.startsWith("/_next/static/") ||
url.pathname.startsWith("/icons/") ||
url.pathname.endsWith(".svg") ||
url.pathname.endsWith(".woff2")
) {
event.respondWith(
caches.match(req).then((cached) => {
if (cached) return cached;
return fetch(req).then((res) => {
const clone = res.clone();
if (res.status === 200) {
caches.open(SHELL_CACHE).then((cache) => cache.put(req, clone));
}
return res;
});
}),
);
return;
}
// /api/water* GETs → stale-while-revalidate (so the headgate list
// and worker availability can hydrate from cache while we re-fetch).
if (url.pathname.startsWith("/api/water")) {
event.respondWith(
caches.open(DATA_CACHE).then((cache) =>
cache.match(req).then((cached) => {
const network = fetch(req)
.then((res) => {
if (res.status === 200) cache.put(req, res.clone());
return res;
})
.catch(() => cached);
return cached ?? network;
}),
),
);
return;
}
// Default: try network, fall back to cache.
event.respondWith(fetch(req).catch(() => caches.match(req)));
});
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/**
* Cycle 6 — Field-worker sub-PWA layout. Overrides the root layout's
* `manifest`, `themeColor`, and `applicationName` so the worker PWA
* installs as "Water Log — Tuxedo" rather than "Route Commerce".
*
* Per Next.js App Router semantics, child layouts can override any
* `Metadata` field set by an ancestor — `manifest` and `themeColor`
* both qualify. The root layout still provides fonts + providers.
*/
import type { Metadata, Viewport } from "next";
import { FieldSWRegistration } from "@/components/pwa/FieldSWRegistration";
import { FieldInstallPrompt } from "@/components/pwa/FieldInstallPrompt";
export const viewport: Viewport = {
width: "device-width",
initialScale: 1,
maximumScale: 1,
userScalable: false,
themeColor: "#14532d",
viewportFit: "cover",
};
export const metadata: Metadata = {
title: {
default: "Water Log · Tuxedo",
template: "%s · Water Log",
},
description:
"Field log of Tuxedo water readings + worker time tracking — PIN-protected, mobile-first.",
applicationName: "Water Log",
manifest: "/manifest-field.json",
appleWebApp: {
capable: true,
statusBarStyle: "default",
title: "Water Log",
},
robots: {
index: false,
follow: false,
},
};
export default function WaterLayout({
children,
}: {
children: React.ReactNode;
}) {
return (
<>
{/* Client-side: register the scoped SW + show the field-
branded install prompt. Both are no-op on first paint and
only fire under user-instigated conditions. */}
<FieldSWRegistration />
<FieldInstallPrompt />
{children}
</>
);
}
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/**
* FieldInstallPrompt — install prompt for the worker sub-PWA.
*
* Cycle 6 sibling of `InstallPrompt` (mounted from the root layout).
* This one fires only on /water routes and uses the field-PWA
* branding (forest green icon, "Water Log — Tuxedo") so the prompt
* that surfaces matches the manifest that will be installed.
*
* Same `BeforeInstallPromptEvent` capture pattern as InstallPrompt;
* split into a separate component file because the worker surface
* has its own theming + copy.
*/
"use client";
import { useEffect, useSyncExternalStore, useCallback, useReducer } from "react";
interface BeforeInstallPromptEvent extends Event {
prompt(): Promise<void>;
userChoice: Promise<{ outcome: "accepted" | "dismissed" }>;
}
type PromptState = {
deferred: BeforeInstallPromptEvent | null;
visible: boolean;
};
type PromptAction =
| { type: "captured"; event: BeforeInstallPromptEvent }
| { type: "show" }
| { type: "hide" }
| { type: "dismissed" }
| { type: "reset" };
function promptReducer(state: PromptState, action: PromptAction): PromptState {
switch (action.type) {
case "captured":
return { deferred: action.event, visible: false };
case "show":
return state.deferred ? { ...state, visible: true } : state;
case "hide":
return { deferred: null, visible: false };
case "dismissed":
return { ...state, visible: false };
case "reset":
return { deferred: null, visible: false };
}
}
const INITIAL_PROMPT_STATE: PromptState = { deferred: null, visible: false };
export function FieldInstallPrompt() {
const [prompt, dispatch] = useReducer(promptReducer, INITIAL_PROMPT_STATE);
const isInstalled = useSyncExternalStore(
() => () => {},
() =>
typeof window !== "undefined" &&
(window.matchMedia("(display-mode: standalone)").matches ||
// iOS Safari uses navigator.standalone for the home-screen PWA
// launch. Cover both.
(typeof (navigator as Navigator & { standalone?: boolean }).standalone ===
"boolean" &&
(navigator as Navigator & { standalone?: boolean }).standalone === true)),
() => false,
);
const mounted = useSyncExternalStore(
() => () => {},
() => true,
() => false,
);
useEffect(() => {
if (isInstalled) return;
if (typeof window === "undefined") return;
const handleBeforeInstall = (e: Event) => {
e.preventDefault();
dispatch({ type: "captured", event: e as BeforeInstallPromptEvent });
// Show the field prompt sooner than the main one — workers
// know they want this installed on day one.
window.setTimeout(() => {
dispatch({ type: "show" });
}, 4000);
};
const handleAppInstalled = () => {
dispatch({ type: "reset" });
};
window.addEventListener("beforeinstallprompt", handleBeforeInstall);
window.addEventListener("appinstalled", handleAppInstalled);
return () => {
window.removeEventListener("beforeinstallprompt", handleBeforeInstall);
window.removeEventListener("appinstalled", handleAppInstalled);
};
}, [isInstalled]);
const handleInstall = useCallback(async () => {
const deferred = prompt.deferred;
if (!deferred) return;
await deferred.prompt();
const { outcome } = await deferred.userChoice;
void outcome;
dispatch({ type: "reset" });
}, [prompt.deferred]);
const handleDismiss = useCallback(() => {
dispatch({ type: "dismissed" });
try {
sessionStorage.setItem("field-pwa-install-dismissed", "true");
} catch {
// ignore
}
}, []);
if (!mounted || !prompt.visible || isInstalled || !prompt.deferred) {
return null;
}
return (
<div className="fixed bottom-4 left-4 right-4 sm:left-auto sm:right-4 sm:w-80 bg-white rounded-2xl shadow-2xl border border-[#1a4d2e]/30 p-4 z-50">
<div className="flex items-start gap-3">
<div className="w-12 h-12 bg-[#1a4d2e] rounded-xl flex items-center justify-center shrink-0">
<svg
className="w-6 h-6 text-white"
fill="none"
viewBox="0 0 24 24"
stroke="currentColor"
strokeWidth={2}
>
<path
strokeLinecap="round"
strokeLinejoin="round"
d="M12 3v12m0 0l-4-4m4 4l4-4M5 21h14"
/>
</svg>
</div>
<div className="flex-1">
<h3 className="font-semibold text-[#1a4d2e]">
Install Water Log
</h3>
<p className="text-sm text-[rgba(60,60,67,0.65)] mt-1">
One tap to a full-screen PIN entry from your home screen.
</p>
</div>
</div>
<div className="flex gap-2 mt-4">
<button
type="button"
onClick={handleDismiss}
className="flex-1 px-4 py-2 text-sm font-medium text-[rgba(60,60,67,0.55)] hover:text-[rgba(60,60,67,0.85)] transition-colors"
>
Not now
</button>
<button
type="button"
onClick={handleInstall}
className="flex-1 px-4 bg-[#1a4d2e] text-white rounded-lg text-sm font-medium hover:bg-[#14432a] py-2 transition-colors"
>
Install
</button>
</div>
</div>
);
}
export default FieldInstallPrompt;
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/**
* FieldSWRegistration — registers /sw-field.js with scope=/water.
*
* Cycle 6 component used by the worker sub-PWA. The component is
* mounted from src/app/water/layout.tsx (a thin client boundary
* inside the otherwise-server layout) so the registration only
* happens on /water routes — never on /admin, /tuxedo, etc.
*
* No-ops on:
* - Server (guards with typeof navigator)
* - repeat mounts (uses a module-scoped flag so React strict-mode
* double-mount doesn't double-register)
*
* Same registration pattern as next-pwa — we use the raw
* ServiceWorkerContainer API to stay framework-free.
*/
"use client";
import { useEffect } from "react";
let registered = false;
export function FieldSWRegistration() {
useEffect(() => {
if (typeof navigator === "undefined") return;
if (!("serviceWorker" in navigator)) return;
if (registered) return;
registered = true;
void navigator.serviceWorker
.register("/sw-field.js", { scope: "/water" })
.catch((err) => {
// Surface to console for ops; never block the UI. The
// app works without the SW — it just loses offline shell
// caching for /water.
console.error("[field-sw] registration failed", err);
// Allow a retry on a later mount.
registered = false;
});
}, []);
return null;
}
export default FieldSWRegistration;