/**
 * Shared Cosmos DB client for the Platform Service.
 */

import { CosmosClient, Container } from "@azure/cosmos";

let client: CosmosClient | null = null;

function getClient(): CosmosClient {
  if (!client) {
    const endpoint = process.env.COSMOS_ENDPOINT;
    const key = process.env.COSMOS_KEY;
    if (!endpoint || !key) {
      throw new Error("COSMOS_ENDPOINT and COSMOS_KEY must be set");
    }
    client = new CosmosClient({ endpoint, key });
  }
  return client;
}

export function getContainer(name: string): Container {
  const database = process.env.COSMOS_DATABASE || "lysnrai";
  return getClient().database(database).container(name);
}