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export const POINT_STANDARDS_PATH = '/points/standards';
export const POINT_STANDARD_PAGE_SIZE_OPTIONS = [10, 30, 50] as const;
export type PointStandardPageSize =
(typeof POINT_STANDARD_PAGE_SIZE_OPTIONS)[number];
export const DEFAULT_POINT_STANDARD_PAGE_SIZE: PointStandardPageSize = 10;
const DEFAULT_PAGE = 1;
const MAX_KEYWORD_LENGTH = 100;
/** 검색어 하나가 이벤트와 이벤트 설명을 함께 훑는다(기획 PTS10100001 ①). */
export type PointStandardQuery = {
keyword: string;
page: number;
pageSize: PointStandardPageSize;
};
type RawSearchParams = Record<string, string | string[] | undefined>;
function readParam(params: RawSearchParams, key: string): string | undefined {
const value = params[key];
return Array.isArray(value) ? value[0] : value;
}
function isPointStandardPageSize(value: number): value is PointStandardPageSize {
return (POINT_STANDARD_PAGE_SIZE_OPTIONS as readonly number[]).includes(value);
}
export function parsePointStandardQuery(
searchParams: RawSearchParams
): PointStandardQuery {
const keywordRaw = readParam(searchParams, 'keyword');
const pageRaw = Number(readParam(searchParams, 'page'));
const pageSizeRaw = Number(readParam(searchParams, 'pageSize'));
return {
keyword: (keywordRaw ?? '').trim().slice(0, MAX_KEYWORD_LENGTH),
page: Number.isInteger(pageRaw) && pageRaw > 0 ? pageRaw : DEFAULT_PAGE,
pageSize: isPointStandardPageSize(pageSizeRaw)
? pageSizeRaw
: DEFAULT_POINT_STANDARD_PAGE_SIZE,
};
}
export function buildPointStandardHref(
query: PointStandardQuery,
overrides: Partial<PointStandardQuery> = {}
): string {
const merged = { ...query, ...overrides };
const params = new URLSearchParams();
if (merged.keyword) {
params.set('keyword', merged.keyword);
}
if (merged.pageSize !== DEFAULT_POINT_STANDARD_PAGE_SIZE) {
params.set('pageSize', String(merged.pageSize));
}
if (merged.page !== DEFAULT_PAGE) {
params.set('page', String(merged.page));
}
const queryString = params.toString();
return queryString
? `${POINT_STANDARDS_PATH}?${queryString}`
: POINT_STANDARDS_PATH;
}