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/** 고정 CGV 공개 조회만 허용하는 무료 HTTP 중계입니다. */
import { CGV_API, cgvRequestUrl } from '../../src/services/cgv/api.js';
import { createCgvHeaders } from '../../src/services/cgv/transport.js';
import { isCgvResponse } from '../../src/services/cgv/relayTransport.js';
import {
createHttpRelay,
RelayError,
abortable,
readJson,
type HttpRelayOptions,
} from './http-relay.js';
const paths = {
theaters: CGV_API.THEATER_LIST_PATH,
movies: CGV_API.MOVIE_LIST_PATH,
timetable: CGV_API.TIMETABLE_BY_SITE_PATH,
'timetable-movie': CGV_API.TIMETABLE_PATH,
};
type Operation = keyof typeof paths;
function validate(value: unknown, operation: string): Record<string, string> {
if (!value || typeof value !== 'object' || Array.isArray(value)) throw new RelayError(400);
const p = value as Record<string, unknown>;
const keys =
operation === 'theaters'
? []
: operation === 'timetable-movie'
? ['theaterCode', 'playDate', 'movieCode']
: ['theaterCode', 'playDate'];
if (Object.keys(p).length !== keys.length || !Object.keys(p).every((key) => keys.includes(key)))
throw new RelayError(400);
if (operation !== 'theaters') {
if (
typeof p.theaterCode !== 'string' ||
!/^\d{4}$/.test(p.theaterCode) ||
typeof p.playDate !== 'string' ||
!/^\d{8}$/.test(p.playDate)
)
throw new RelayError(400);
const date = `${p.playDate.slice(0, 4)}-${p.playDate.slice(4, 6)}-${p.playDate.slice(6, 8)}`;
const time = Date.parse(`${date}T00:00:00Z`);
if (!Number.isFinite(time) || new Date(time).toISOString().slice(0, 10) !== date)
throw new RelayError(400);
}
if (
operation === 'timetable-movie' &&
(typeof p.movieCode !== 'string' || !/^\d{1,16}$/.test(p.movieCode))
)
throw new RelayError(400);
return p as Record<string, string>;
}
export function createCgvRelay(
token: string,
options: Pick<HttpRelayOptions, 'takeQuota' | 'fetcher' | 'onEvent'>,
) {
return createHttpRelay(token, {
...options,
cacheTtl: (operation) =>
['timetable', 'timetable-movie'].includes(operation) ? 30000 : 300000,
prefix: '/v1/cgv/',
operations: Object.keys(paths),
validate,
async upstream(operation, value, signal, fetcher) {
const params = value as Record<string, string>;
const path = paths[operation as Operation];
const url = cgvRequestUrl(path);
url.searchParams.set('coCd', CGV_API.COMPANY_CODE);
if (operation !== 'theaters') {
url.searchParams.set('siteNo', params.theaterCode);
url.searchParams.set('scnYmd', params.playDate);
}
if (operation === 'timetable')
url.searchParams.set('rtctlScopCd', CGV_API.TIMETABLE_SITE_SCOPE_CODE);
if (operation === 'timetable-movie') {
url.searchParams.set('movNo', params.movieCode);
url.searchParams.set('rtctlScopCd', CGV_API.TIMETABLE_SCOPE_CODE);
}
const response = await abortable(
fetcher(url, {
method: 'GET',
redirect: 'manual',
headers: await createCgvHeaders(path),
signal,
}),
signal,
);
if (response.status !== 200) {
void response.body?.cancel().catch(() => undefined);
throw new RelayError(502);
}
const data = await readJson(response.body, 2 * 1024 * 1024, signal, 502);
if (!isCgvResponse(data)) throw new RelayError(502);
return data;
},
});
}