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import { createHash } from "node:crypto";
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import type {
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AddressLookupInput,
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MothershipAddressCandidate,
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} from "@/modules/address/types";
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import {
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getAddressCandidatesCache,
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setAddressCandidatesCache,
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} from "@/modules/cache/redis-cache";
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export type AddressCandidatesCachePayload = {
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pickup_candidates: MothershipAddressCandidate[];
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delivery_candidates: MothershipAddressCandidate[];
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};
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function normalizeAddressLookup(input: AddressLookupInput): string {
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return JSON.stringify({
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street: input.street.trim(),
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city: input.city.trim(),
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state: input.state.trim().toUpperCase(),
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zip: input.zip.trim(),
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country: (input.country ?? "USA").trim().toUpperCase(),
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});
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}
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/** pickup + delivery 草稿地址 MD5，用于 addr-cand 缓存键 */
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export function buildAddressCandidatesCacheHash(input: {
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pickup: AddressLookupInput;
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delivery: AddressLookupInput;
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}): string {
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const raw = [
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normalizeAddressLookup(input.pickup),
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normalizeAddressLookup(input.delivery),
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].join("|");
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return createHash("md5").update(raw).digest("hex");
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}
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export async function loadAddressCandidatesCache(input: {
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pickup: AddressLookupInput;
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delivery: AddressLookupInput;
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}): Promise<AddressCandidatesCachePayload | null> {
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try {
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const hash = buildAddressCandidatesCacheHash(input);
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return await getAddressCandidatesCache<AddressCandidatesCachePayload>(hash);
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} catch {
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return null;
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}
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}
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export async function saveAddressCandidatesCache(
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input: {
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pickup: AddressLookupInput;
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delivery: AddressLookupInput;
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},
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payload: AddressCandidatesCachePayload,
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): Promise<void> {
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try {
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const hash = buildAddressCandidatesCacheHash(input);
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await setAddressCandidatesCache(hash, payload);
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} catch {
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// Redis 不可用时跳过缓存，不影响主流程
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}
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}
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