import type { IAbapConnection } from '@mcp-abap-adt/interfaces';
import { registerConnectionResetHook } from './connectionEvents';
export interface IAdtSystemContext {
masterSystem?: string;
responsible?: string;
}
let cached: IAdtSystemContext | undefined;
export async function resolveSystemContext(
connection: IAbapConnection,
): Promise<IAdtSystemContext> {
if (cached) return cached;
// Try env vars first (on-prem or explicitly configured)
const masterSystem = process.env.SAP_MASTER_SYSTEM;
const responsible = process.env.SAP_RESPONSIBLE || process.env.SAP_USERNAME;
if (masterSystem || responsible) {
cached = { masterSystem, responsible };
return cached;
}
// Cloud: try getSystemInformation API
try {
const { getSystemInformation } = await import('@mcp-abap-adt/adt-clients');
const info = await getSystemInformation(connection);
cached = {
masterSystem: info?.systemID,
responsible: info?.userName,
};
} catch {
cached = {};
}
return cached;
}
export function getSystemContext(): IAdtSystemContext {
return cached || {};
}
export function resetSystemContextCache() {
cached = undefined;
}
registerConnectionResetHook(resetSystemContextCache);
