Jesse_Chen
9dc2948ab6
The single search field asked people to type a place name and then judge which of several near-identical results was theirs, which is the one thing they cannot verify about their own birth record. Province, city and district are now chosen from the dataset the app already ships, so there is nothing to type and nothing to disambiguate. Levels that offer no choice collapse: municipalities show one level, and prefecture cities without districts stop at the city. A district can be left as the city centre, which is accurate enough because the chart only needs coordinates and a timezone. The timezone is resolved once for the chosen place rather than on every keystroke, through a dedicated route that both this picker and the Geoapify path share. Co-authored-by: Cursor <cursoragent@cursor.com>
63 lines
2.3 KiB
TypeScript
63 lines
2.3 KiB
TypeScript
import type {
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BirthLocationTimezoneQuery,
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BirthLocationTimezoneResult,
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NormalizedBirthLocation,
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} from "./location-contract";
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type FetchLike = typeof fetch;
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const localTimeStatuses = ["resolved", "not_provided", "ambiguous", "nonexistent"] as const;
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function asLocalTimeStatus(value: unknown): NormalizedBirthLocation["localTimeStatus"] {
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const candidate = String(value);
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return (localTimeStatuses as readonly string[]).includes(candidate)
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? candidate as NormalizedBirthLocation["localTimeStatus"]
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: "not_provided";
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}
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/**
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* Resolves an IANA zone and the offset that applied at the birth moment. The chart
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* engine owns pre-1949 zone boundaries and historical DST, so this stays a server
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* call rather than a browser tzdata lookup.
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*/
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export async function resolveBirthLocationTimezone(
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query: BirthLocationTimezoneQuery,
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options: { apiBase?: string; fetchImpl?: FetchLike } = {},
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): Promise<BirthLocationTimezoneResult> {
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const fetchImpl = options.fetchImpl ?? fetch;
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const apiBase = options.apiBase ?? process.env.JYOTISH_API_BASE ?? "http://127.0.0.1:5200";
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let payload: Record<string, unknown>;
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try {
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const response = await fetchImpl(`${apiBase}/api/location/timezone`, {
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method: "POST",
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headers: { "Content-Type": "application/json" },
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body: JSON.stringify({
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latitude: query.latitude,
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longitude: query.longitude,
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...(query.birthDate ? { birthDate: query.birthDate } : {}),
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...(query.birthDate && query.birthTime ? { birthTime: query.birthTime } : {}),
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}),
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cache: "no-store",
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});
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if (!response.ok) return { status: "unavailable", reason: "timezone_service_unavailable" };
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const body: unknown = await response.json();
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payload = body && typeof body === "object" ? body as Record<string, unknown> : {};
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} catch {
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return { status: "unavailable", reason: "timezone_service_unavailable" };
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}
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const timezoneId = typeof payload.timezoneId === "string" ? payload.timezoneId.trim() : "";
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if (payload.available !== true || !timezoneId) {
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return { status: "unavailable", reason: "timezone_service_unavailable" };
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}
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return {
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status: "ok",
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timezoneId,
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timezoneOffset: typeof payload.timezoneOffset === "number" ? payload.timezoneOffset : null,
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timezoneSource: "iana_historical",
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localTimeStatus: asLocalTimeStatus(payload.localTimeStatus),
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};
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}
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