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/*
 * Copyright (c) 2014-2019 Aurélien Broszniowski
 *
 * 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.
 */

package io.rainfall.store.controllers;

import io.rainfall.store.data.CompressionService;
import io.rainfall.store.data.Payload;
import io.rainfall.store.dataset.MonitorLogDataset;
import io.rainfall.store.dataset.MonitorLogRecord;
import io.rainfall.store.dataset.Record;
import io.rainfall.store.dataset.RunRecord;
import io.rainfall.store.values.MonitorLog;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;

import java.io.IOException;
import java.util.List;

import static io.rainfall.store.data.CompressionServiceFactory.compressionService;

@Controller
@SuppressWarnings("unused")
public class MonitorLogController extends ChildController<
    MonitorLog, MonitorLogRecord, RunRecord, MonitorLogDataset> {

  MonitorLogController(MonitorLogDataset dataset) {
    super(dataset, "Monitor log", "/stats");
  }

  @PostMapping("/stats/{runId}")
  public ResponseEntity postLog(@PathVariable long runId, @RequestBody MonitorLog log) {
    return super.post(runId, log);
  }

  @GetMapping({ "/stats/{id}" })
  @ResponseBody
  public String getLog(ModelMap model, @PathVariable long id) throws IOException {
    Payload payload = dataset()
        .getPayload(id)
        .map(Record::getValue)
        .orElseThrow(() -> new IllegalStateException("Payload is null for monitor log: " + id));
    CompressionService compressionService = compressionService(payload.getFormat());
    byte[] data = compressionService.decompress(payload);
    return Payload.toUtfString(data);
  }

  @GetMapping({ "/runs/{parentId}/stats" })
  public ModelAndView findMonitorLogsForRun(ModelMap model,
                                            @PathVariable long parentId) {
    return getByParentId(model, parentId);
  }

  @GetMapping({ "/runs/{parentId}/stats/{host}" })
  public ModelAndView findMonitorLogsForRunAndHost(ModelMap model,
                                                   @PathVariable long parentId,
                                                   @PathVariable String host) {
    List records = dataset()
        .findMonitorLogsForRunAndHost(parentId, host);
    return getRecords(model, records);
  }
}