import { AtProtoClient } from "../client.ts";
import { createOAuthClient } from "../config.ts";
import { buildAtUri } from "./at-uri.ts";

interface AuthContext {
  currentUser: {
    sessionId?: string;
    sub?: string;
  };
}

// Helper function to get a slice-specific AT Protocol client
export function getSliceClient(
  context: AuthContext,
  sliceId: string,
  sliceOwnerDid?: string,
): AtProtoClient {
  const API_URL = Deno.env.get("API_URL")!;

  // Use provided sliceOwnerDid or fall back to current user's DID
  const ownerDid = sliceOwnerDid || context.currentUser.sub;

  if (!ownerDid) {
    throw new Error("Owner DID is required to create slice client");
  }

  const sliceUri = buildAtUri({
    did: ownerDid,
    collection: "network.slices.slice",
    rkey: sliceId,
  });

  // Use authenticated client if user is authenticated, otherwise public client
  if (context.currentUser.sessionId) {
    const sessionOAuthClient = createOAuthClient(context.currentUser.sessionId);
    return new AtProtoClient(API_URL, sliceUri, sessionOAuthClient);
  } else {
    return new AtProtoClient(API_URL, sliceUri);
  }
}