import type { ContractorAgentMetadata } from "../types/contractor.js";

const CONTRACTOR_MODEL = "contractor-agent/contractor-claude-bridge";

type AgentConfig = {
  id: string;
  workspace?: string;
  model?: string;
};

/**
 * Determine whether an agent is a contractor-backed Claude agent and return its metadata.
 * Contractor agents are identified by their model string — we do NOT use a custom
 * runtime.type because OpenClaw's schema only allows "embedded" or "acp".
 * Returns null if the agent is not contractor-backed.
 */
export function resolveContractorAgentMetadata(
  agentConfig: AgentConfig,
  permissionMode: string,
): ContractorAgentMetadata | null {
  if (agentConfig.model !== CONTRACTOR_MODEL) return null;

  const workspace = agentConfig.workspace;
  if (!workspace) return null;

  return {
    agentId: agentConfig.id,
    contractor: "claude",
    bridgeModel: "contractor-claude-bridge",
    workspace,
    permissionMode,
  };
}