import { selectLoopKeyStore } from "../lib/key-store.js";
import { loopGet, LoopApiError } from "../lib/loop-api.js";

interface LoopTeamResponse {
  id?: string;
  name?: string;
  address?: string;
  agentId?: string;
  [key: string]: unknown;
}

const ALL_PERMISSIONS = ["properties", "people", "viewings", "feedback", "team", "marketing", "customer", "supplier"];

export async function keyRegister(params: {
  teamName: string;
  apiKey: string;
  accountId: string;
  permissions?: string[];
}): Promise<{ warning?: string }> {
  const { teamName, apiKey, accountId } = params;
  const permissions = params.permissions ?? ALL_PERMISSIONS;

  // Validate key against Loop API — try /team endpoint.
  let teamAddress = "";
  let agentId = "";
  let warning: string | undefined;

  try {
    const teamData = await loopGet<LoopTeamResponse>(
      apiKey,
      "/team",
      "loop-key-register",
      teamName,
    );

    if (Array.isArray(teamData) && teamData.length === 0) {
      warning =
        "Key accepted but Loop returned no team data (204). " +
        "Verify the key's scope in Loop's dashboard.";
    } else if (teamData && typeof teamData === "object") {
      teamAddress = String(teamData.address ?? "");
      agentId = String(teamData.agentId ?? teamData.id ?? "");
    }
  } catch (err) {
    if (err instanceof LoopApiError && err.status === 401) {
      throw new Error(
        `Loop API rejected the key for team "${teamName}" (HTTP 401). ` +
          `Check that the key is valid and not expired.`,
      );
    }
    throw new Error(
      `Could not validate key against Loop API: ${err instanceof Error ? err.message : String(err)}`,
    );
  }

  const { created } = await selectLoopKeyStore().save(accountId, {
    teamName,
    apiKey,
    teamAddress,
    agentId,
    permissions,
  });

  if (!created) {
    throw new Error(`Team "${teamName}" is already registered for this account.`);
  }

  console.error(`[loop] key-register team=${teamName} account=${accountId}`);
  return { warning };
}