import { useCallback, useState } from "react";

import { cancelCodeAgentTurn, steerCodeAgentTurn, submitCodeAgentTurn } from "../services/api/codeAgent.ts";

export function useCodeAgentSubmit({ workspace, activeConversationId, activeSessionId }) {
  const [pending, setPending] = useState(false);
  const [lastError, setLastError] = useState(null);
  const [lastTraceId, setLastTraceId] = useState(null);

  const submit = useCallback(
    async ({ message, mode = "turn" }) => {
      setLastError(null);
      setPending(true);
      const payload = {
        message,
        conversationId: activeConversationId,
        sessionId: activeSessionId,
        workspaceId: workspace?.workspaceId ?? null,
        workspaceRevision: workspace?.revision ?? null,
        threadId: workspace?.threadId ?? null,
      };
      const action = mode === "steer" ? steerCodeAgentTurn : submitCodeAgentTurn;
      const result = await action(payload);
      setPending(false);
      if (!result.ok) {
        setLastError(`submit failed: ${result.status}`);
        return { ok: false };
      }
      const traceId = result.data?.traceId ?? result.data?.targetTraceId ?? null;
      if (traceId) setLastTraceId(traceId);
      return { ok: true, traceId, data: result.data };
    },
    [activeConversationId, activeSessionId, workspace]
  );

  const cancel = useCallback(async () => {
    if (!lastTraceId) return { ok: false, error: "no active trace" };
    setPending(true);
    const result = await cancelCodeAgentTurn({ traceId: lastTraceId });
    setPending(false);
    return { ok: result.ok, data: result.data };
  }, [lastTraceId]);

  return { submit, cancel, pending, lastError, lastTraceId };
}