/**
* @license
* Copyright (C) 2018-2019 "IoT.bzh"
* Author Sebastien Douheret <sebastien@iot.bzh>
*
* 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 { Injectable } from '@angular/core';
import { Observable } from 'rxjs/Observable';

import { XDSAgentService } from './xdsagent.service';
import { map } from 'rxjs/operators';

export interface AglTopology {
  name: string;
  pid: number;
  disabled: boolean;
  isClient: boolean;
  isServer: boolean;
  ws_clients: string[];
  ws_servers: string[];
  apis: any;
}

export interface AglLowCollectorConfig {
  time?: number;
}

@Injectable()
export class MonitoringService {

  constructor(private xdsSvr: XDSAgentService) {
    /*
    this.xdsSvr.XdsConfig$.subscribe(cfg => {
      if (!cfg || cfg.servers.length < 1) {
        return;
      }
    });
    */
  }

  getTopo(): Observable<AglTopology[]> {
    return this.xdsSvr.getTopoMonitoring().pipe(
      map((tp: AglTopology[]) => {
        // FIXME - move filter on backend side
        const ignored: string[] = [
          'agl-low-collector',
          'harvester',
        ];

        tp.forEach(el => {
          el.disabled = false;
          ignored.forEach(iel => {
            if (el.name.indexOf(iel) !== -1) {
              el.disabled = true;
            }
          });

          // replace unix:/run/xxx/ws by nothing
          const wsc: string[] = [];
          el.ws_clients.forEach(s => {
            s = s.replace('unix:/run/platform/apis/ws/', '');
            s = s.replace('unix:/run/user/1001/apis/ws/', '');
            s = s.replace('unix:/run/user/0/apis/ws/', '');
            wsc.push(s);
          });
          el.ws_clients = wsc;
          // replace sd: by nothing
          const wss: string[] = [];
          el.ws_servers.forEach(s => {
            wss.push(s.replace('sd:', ''));
          });
          el.ws_servers = wss;
        });
        return tp;
      })
    );
  }

  startTrace(cfg: any): Observable<any> {
    return this.xdsSvr.startTraceMonitoring(cfg);
  }

  stopTrace(cfg: any): Observable<any> {
    return this.xdsSvr.stopTraceMonitoring(cfg);
  }

  startLowCollector(cfg: AglLowCollectorConfig): Observable<any> {
    return this.xdsSvr.startLowCollector(cfg);
  }

  stopLowCollector(): Observable<any> {
    return this.xdsSvr.stopLowCollector();
  }
}