Jesse_ChenandClaude Opus 5.5
b743b16b00
The China city table loads on demand; old code-only profiles load it before the people list settles, so they resolve exactly as before. The gate keeps the six holdout fields it reads, pinned to the JSON by a test. The onboarding shell is preloaded before reveal only when the profile is incomplete. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01N4f2nya58RoRu4yEmJgRGE
69 lines
2.5 KiB
TypeScript
69 lines
2.5 KiB
TypeScript
import type { ChinaLocationData } from "@/data/china-locations";
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/**
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* The China city table on the client, loaded on demand (TASK-home-first-load
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* T7, BUG-1130). The table (≈227 KB, ≈47 KB brotli) used to ride in the home
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* page's first-screen bundle through `home-types.ts`, although only two things
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* need it: the birth-place picker (which imports it statically and registers it
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* here) and old profiles that carry province / city codes but no coordinates.
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*
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* `selectedBirthPlace` stays synchronous and reads `loadedChinaCountry()`. The
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* cold boot awaits `ensureChinaLocations()` before reveal whenever the account
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* or the people list holds such an old profile, so those profiles resolve to
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* exactly the place they did before (see session-list-context.tsx and
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* current-subject.ts). Profiles saved with coordinates never need it.
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*/
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export type ChinaCountry = ChinaLocationData["country"];
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let country: ChinaCountry | null = null;
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let loading: Promise<ChinaCountry> | null = null;
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export function loadedChinaCountry(): ChinaCountry | null {
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return country;
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}
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export function registerChinaCountry(value: ChinaCountry): void {
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country = value;
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}
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export function ensureChinaLocations(): Promise<ChinaCountry> {
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if (country) return Promise.resolve(country);
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loading ??= import("@/data/china-locations").then((module) => {
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country = module.chinaLocations.country;
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return country;
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}, (error: unknown) => {
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loading = null;
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throw error;
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});
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return loading;
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}
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type PlaceFields = Readonly<{
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provinceCode?: string;
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birthPlaceLabel?: string;
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latitude?: number | null;
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longitude?: number | null;
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timezoneId?: string;
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timezoneOffset?: number | null;
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}>;
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/**
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* True when `selectedBirthPlace` would have to look the place up by code: the
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* profile has a province code but not the saved label + coordinates + zone.
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* Mirrors the first branch of `selectedBirthPlace` in home-profile.ts.
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*/
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export function profileNeedsChinaLocations(profile: PlaceFields | null | undefined): boolean {
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if (!profile || !profile.provinceCode) return false;
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const saved = Boolean(profile.birthPlaceLabel)
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&& Number.isFinite(profile.latitude)
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&& Number.isFinite(profile.longitude)
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&& Boolean(profile.timezoneId?.trim())
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&& (profile.timezoneOffset === null || profile.timezoneOffset === undefined || Number.isFinite(profile.timezoneOffset));
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return !saved;
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}
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export function resetChinaLocationsForTests(): void {
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country = null;
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loading = null;
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}
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