/*
 * Copyright 2020 EPAM Systems
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import { useState, useEffect } from "react";

import { test2CodePluginSocket } from "common";
import { ActiveScope } from "types/active-scope";
import { useActiveBuild } from "./use-active-build";
import { useTestToCodeRouteParams } from "./use-test2code-params";
import { useAgentRouteParams } from "./use-agent-route-params";

export function useActiveScope(): ActiveScope | null {
  const { buildVersion } = useTestToCodeRouteParams();
  const { agentId } = useAgentRouteParams();
  const { buildVersion: activeBuildVersion = "" } = useActiveBuild(agentId) || {};
  const [data, setData] = useState<ActiveScope | null>(null);
  const isActiveBuildVersion = buildVersion === activeBuildVersion;

  useEffect(() => {
    function handleDataChange(newData: ActiveScope) {
      setData(newData);
    }

    const unsubscribe = agentId && buildVersion && isActiveBuildVersion
      ? test2CodePluginSocket.subscribe("/active-scope", handleDataChange, {
        agentId,
        buildVersion,
        type: "AGENT",
      })
      : setData(null);

    return () => {
      unsubscribe && unsubscribe();
    };
    // eslint-disable-next-line
  }, [agentId, buildVersion, isActiveBuildVersion]);

  return data;
}