// =============================================================================
// Pure sub-agent orchestration API. Wraps the vibn-agent-runner HTTP endpoints
// so the same logic is usable from the in-process tool and from an MCP server.
// =============================================================================

export interface AgentRunnerConfig {
    runnerUrl: string;
}

export interface SpawnAgentInput {
    agent: string; // "Coder" | "PM" | "Marketing"
    task: string;
    repo: string;  // "owner/name"
}

export async function spawnAgent(cfg: AgentRunnerConfig, input: SpawnAgentInput): Promise<unknown> {
    try {
        const res = await fetch(`${cfg.runnerUrl}/api/agent/run`, {
            method: 'POST',
            headers: { 'Content-Type': 'application/json', 'X-Internal': 'true' },
            body: JSON.stringify({ agent: input.agent, task: input.task, repo: input.repo }),
        });
        const data = (await res.json()) as any;
        return { jobId: data.jobId, agent: input.agent, status: 'dispatched' };
    } catch (err) {
        return { error: `Failed to spawn agent: ${err instanceof Error ? err.message : String(err)}` };
    }
}

export async function getJobStatus(cfg: AgentRunnerConfig, jobId: string): Promise<unknown> {
    try {
        const res = await fetch(`${cfg.runnerUrl}/api/jobs/${jobId}`);
        const job = (await res.json()) as any;
        return {
            id: job.id,
            agent: job.agent,
            status: job.status,
            progress: job.progress,
            toolCalls: job.toolCalls?.length,
            result: job.result,
            error: job.error,
        };
    } catch (err) {
        return { error: `Failed to get job: ${err instanceof Error ? err.message : String(err)}` };
    }
}