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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 | 1x 15x 15x 15x 15x 15x 12x 11x 8x 1x 19x 15x 1x 6x 5x 15x 4x 2x | /**
* Resolves legacy `/interior-designers/*` paths to their live `/interiors/*`
* equivalents. The URL prefix was renamed pre-launch; these 301s catch any
* external link that still uses the old pattern.
*
* A city that is not live (or unknown) falls back to the Hyderabad hub so we
* never 301 to a 404. Once a city is live, its own hub is the target.
*/
const HUB = "/interiors/hyderabad";
/**
* Minimal structural view of the `getSeoCity` result — only the slug lists this
* resolver needs to classify a path segment.
*/
export interface SeoCityClassification {
localities: { slug: string | null; zoneSlug: string | null }[];
zones: { slug: string | null }[];
services: { slug: string }[];
bhkTypes: { slug: string }[];
}
export interface LiveCityRedirect {
id: string;
slug: string;
}
/**
* @param segments path parts after `/interior-designers/`, already lowercased
* @param cityData SEO classification for the city in the path, or null
* @param liveCity set when that city is live. Hyderabad is assumed live when
* omitted, which keeps the historical redirects.
*/
export function resolveInteriorDesignersRedirect(
segments: string[],
cityData: SeoCityClassification | null,
liveCity?: LiveCityRedirect | null,
): string {
const [city, seg, locality] = segments;
const hyd = !city || city === "hyderabad";
const own =
!hyd &&
liveCity &&
(city === liveCity.id || city === liveCity.slug)
? `/interiors/${liveCity.slug}`
: null;
const hub = own ?? HUB;
if (!hyd && !own) return HUB;
if (!cityData) return hub;
if (!seg) return hub;
if (locality) {
return `${hub}/${seg}/${locality}`;
}
const matchedLocality = cityData.localities?.find((l) => l.slug === seg);
if (matchedLocality?.zoneSlug) {
return `${hub}/${matchedLocality.zoneSlug}/${seg}`;
}
const isSingleSegmentRoute =
cityData.zones?.some((z) => z.slug === seg) ||
cityData.services?.some((s) => s.slug === seg) ||
cityData.bhkTypes?.some((b) => b.slug === seg);
if (isSingleSegmentRoute) {
return `${hub}/${seg}`;
}
return hub;
}
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