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package models;

import csip.ServiceException;
import data.interpretors.CligenData;
import data.interpretors.SOLFile;
import data.interpretors.WindGenData;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.nio.file.Files;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
import nodes.WEPSManagement;
import org.codehaus.jettison.json.JSONArray;
import org.codehaus.jettison.json.JSONException;
import org.codehaus.jettison.json.JSONObject;
import parsers.ParserException;
import utils.Urls;

/**
 *
 * @author <a href="mailto:shaun.case@colostate.edu">Shaun Case</a>
 */
public class WEPPModelArchive extends ModelArchive {

  private SOLFile solFile;
  private WindGenData windData;
  private CligenData cligenData;
  private String stdErrorFile;
  private String stdOutFile;
  private WEPSManagement management;
  private boolean possibleBadModelRun = false;
  private boolean badModelRun = false;
  private String badModelMessage = "";
  private WEPPMetaData weppMetaData;

  public WEPPModelArchive(String suid, String ctime, String etime, String service, String status, String req_ip, String filename) {
    super(suid, ctime, etime, service, status, req_ip, filename);
  }

  public WEPPModelArchive(String suid, String ctime, String etime, String service, String status, String req_ip, String filename, byte[] fileData) throws IOException, JSONException {
    super(suid, ctime, etime, service, status, req_ip, filename, fileData);
    setFileDataEx(fileData);
  }

  public WEPPModelArchive(JSONObject metaData) throws JSONException {
    super(metaData);
  }

  public WEPPModelArchive(JSONObject metaData, byte[] fileData) throws JSONException, IOException {
    super(metaData);
    setFileDataEx(fileData);
  }

  @Override
  public final void setFileDataEx(byte[] fileData) throws IOException, JSONException {
    super.setFileDataEx(fileData);

    try {
      stdErrorFile = getStdErrorFile(fileData);
    } catch (IOException ex) {
      badModelRun = true;
      badModelMessage += "##\n";
      badModelMessage += ex.getMessage();
    }
    if (null != stdErrorFile) {
      possibleBadModelRun = stdErrorFile.contains("IEEE_UNDERFLOW_FLAG") || stdErrorFile.contains("IEEE_DENORMAL");

      if (possibleBadModelRun) {
        badModelMessage += "##\nThe WEPP model executable stderr file contained: ";
        badModelMessage += ((stdErrorFile.contains("IEEE_UNDERFLOW_FLAG")) ? "\nIEEE_UNDERFLOW_FLAG, Meaning that some values were rounded to zero because they were too small for the FORTRAN code to interpret." : "");
        if (badModelMessage.contains("IEEE")) {
          badModelMessage += "\n AND ";
        }
        badModelMessage += ((stdErrorFile.contains("IEEE_DENORMAL")) ? "\nIEEE_DENORMAL, Meaning that there are denormal numbers generated when running the code." : "");
        badModelMessage += "\n This may be a hint about numerical problems in the model FORTRAN code, but it is not an error per se. Probably, the program finished successfully, but some result values may be suspect.";
      }
    }

    // TODO:  Change to getting the ROT file.
//        try {
//            management = getManagementFile(fileData);
//        } catch (IOException ex) {
//            badModelRun = true;
//            badModelMessage += "##\n";
//            badModelMessage += ex.getMessage();
//        }
    try {
      windData = getWindDataFile(fileData);
    } catch (IOException ex) {
      badModelRun = true;
      badModelMessage += "##\n";
      badModelMessage += ex.getMessage();
    }

    if (windData.badWindData()) {
      badModelMessage += "##\nThe Wind data associated with this model run has some qualifying messages: \n" + windData.windDataMessages();
    }

    try {
      cligenData = getClimateDataFile(fileData);
    } catch (IOException ex) {
      badModelRun = true;
      badModelMessage += "##\n";
      badModelMessage += ex.getMessage();
    }

    if (cligenData.badClimateData()) {
      badModelMessage += "##\nThe Cligen data associated with this model run has some qualifying messages: \n" + cligenData.cligenDataMessages();
    }

    try {
      stdOutFile = getStdOutFile(fileData);
    } catch (IOException ex) {
      badModelRun = true;
      badModelMessage += "##\n";
      badModelMessage += ex.getMessage();
    }

    try {
      solFile = getSolFile(fileData);
    } catch (IOException ex) {
      badModelRun = true;
      badModelMessage += "##\n";
      badModelMessage += ex.getMessage();
    }

    if (!badModelRun && badModelMessage.isEmpty()) {
      calcWEPPMetaData();
    }
  }

  public boolean questionableResults() {
    return possibleBadModelRun;
  }

  public boolean badModelRun() {
    return badModelRun;
  }

  public String badModelMessage() {
    return badModelMessage;
  }

  public SOLFile solFile() {
    return solFile;
  }

  public WindGenData windData() {
    return windData;
  }

  public CligenData cligenData() {
    return cligenData;
  }

  public String stdErrorFile() {
    return stdErrorFile;
  }

  public String stdOutFile() {
    return stdOutFile;
  }

  public WEPPMetaData getWEPPMetaData() {
    return weppMetaData;
  }

  public void calcWEPPMetaData() {
    if (null == weppMetaData) {
      weppMetaData = new WEPPMetaData();
    }
//
    weppMetaData.suid(this.suid);
    weppMetaData.cokey(getOriginalRequest("soil"));
    weppMetaData.longitude(Double.parseDouble(getOriginalRequest("longitude")));
    weppMetaData.latitude(Double.parseDouble(getOriginalRequest("latitude")));
    weppMetaData.annualPrecip(cligenData.annualAvgPrecip());
    weppMetaData.windEnergy(windData.simulationAverage());
    weppMetaData.componentName(solFile.soilName);

    weppMetaData.num_layers(solFile.numLayers);
    weppMetaData.surface_thickness(((int) solFile.solthk[0]));

    String biomass_avg = getOriginalResponse("average_biomass");
    if (!biomass_avg.isEmpty()) {
      weppMetaData.rotWeightResBiomass(Double.parseDouble(biomass_avg) * 2000);
    } else {
      badModelRun = true;
      badModelMessage += "##\n";
      badModelMessage += "Missing biomass_avg result in WEPP output result file.";
    }

    String stir = getOriginalResponse("STIR");
    if (!stir.isEmpty()) {
      weppMetaData.rotWeightSoilTillIntensity(Double.parseDouble(stir));
    } else {
      badModelRun = true;
      badModelMessage += "##\n";
      badModelMessage += "Missing avg_all_stir result in WEPP output result file.";
    }

    String soilLoss = getOriginalResponse("SoilLoss");
    if (!soilLoss.isEmpty()) {
      weppMetaData.erosionRate(Double.parseDouble(soilLoss));
    } else {
      badModelRun = true;
      badModelMessage += "##\n";
      badModelMessage += "Missing wind_eros result in WEPP output result file.";
    }

    String respAvgAnnualPrecip = getOriginalResponse("Precipitation");
    if (!respAvgAnnualPrecip.isEmpty()) {
      weppMetaData.respAvgAnnualPrecip(Double.parseDouble(respAvgAnnualPrecip));
    } else {
      badModelRun = true;
      badModelMessage += "##\n";
      badModelMessage += "Missing wind_eros result in WEPP output result file.";
    }

    weppMetaData.errorMessages(badModelMessage);

  }

  private WEPSManagement getManagementFile(byte[] fileData) throws IOException {
    WEPSManagement weppManagement = new WEPSManagement(new Urls());

    File managementFile = new File("management.rot");
    BufferedWriter bufferWriter = Files.newBufferedWriter(managementFile.toPath());
    String data = getFileContents(fileData, ".rot");
    bufferWriter.write(data);
    bufferWriter.flush();
    bufferWriter.close();

    try {
      weppManagement.readManData(managementFile);
    } catch (ParserException | ServiceException ex) {
      Logger.getLogger(WEPPModelArchive.class.getName()).log(Level.SEVERE, null, ex);
      badModelRun = true;
      badModelMessage += "##\n";
      badModelMessage += "Error parsing the WEPP management file:  " + ex.getMessage();
    }

    return weppManagement;
  }

  private WindGenData getWindDataFile(byte[] fileData) throws IOException {
    WindGenData wind;

    wind = new WindGenData(getFileContents(fileData, ".win"));

    return wind;
  }

  private CligenData getClimateDataFile(byte[] fileData) throws IOException {
    CligenData climate;

    climate = new CligenData(getFileContents(fileData, ".cli"));

    return climate;
  }

  private SOLFile getSolFile(byte[] fileData) throws IOException {
    SOLFile requestData = null;

    requestData = new SOLFile(getFileContents(fileData, ".sol"));

    return requestData;
  }

  private String getStdErrorFile(byte[] fileData) throws IOException {
    String fileString = null;

    try (ZipInputStream zin = new ZipInputStream(new ByteArrayInputStream(fileData))) {
      ZipEntry entry;

      while ((entry = zin.getNextEntry()) != null) {
        if (entry.getName().contains("wepp.") && entry.getName().contains("stderr.txt")) {
          BufferedReader bReader = new BufferedReader(new InputStreamReader(zin));
          StringBuilder fileContent = new StringBuilder();
          String inputStr;
          while ((inputStr = bReader.readLine()) != null) {
            fileContent.append(inputStr).append(System.lineSeparator());
          }
          fileString = fileContent.toString();
          break;
        }
      }
    }

    return fileString;
  }

  private String getStdOutFile(byte[] fileData) throws IOException {
    String fileString = null;

    try (ZipInputStream zin = new ZipInputStream(new ByteArrayInputStream(fileData))) {
      ZipEntry entry;

      while ((entry = zin.getNextEntry()) != null) {
        if (entry.getName().contains("wepp.exe") && entry.getName().contains("stdout.txt")) {
          BufferedReader bReader = new BufferedReader(new InputStreamReader(zin));
          StringBuilder fileContent = new StringBuilder();
          String inputStr;
          while ((inputStr = bReader.readLine()) != null) {
            fileContent.append(inputStr).append(System.lineSeparator());
          }
          fileString = fileContent.toString();
          break;
        }
      }
    }

    return fileString;
  }

  public class WEPPMetaData {

    private double latitude;
    private double longitude;
    private String cokey;
    private double windEnergy;
    private double annualPrecip;
    private double respAvgAnnualPrecip;
    private double avgAnnualPrecipEventDuration;
    private double rillErodability;
    private double wAvgSoilSandFraction;
    private double wAvgSoilClayFraction;
    private double effectiveSurfaceConductivity;
    private int contouring;
    private double lsFactor;
    private double erosionRate;
    private double rotIrrEffect;
    private double rotWeightCoverCropEffect;
    private double rotWeightResBiomass;
    private double rotWeightSoilTillIntensity;
    private double rotWeightResAddition;
    private String componentName;
    private int surface_thickness;
    private int num_layers;
    private String suid;
    private String errorMessages = "";

    public String errorMessages() {
      return errorMessages;
    }

    public void errorMessages(String value) {
      errorMessages = value;
    }

    public String suid() {
      return suid;
    }

    public void suid(String value) {
      suid = value;
    }

    public double windEnergy() {
      return windEnergy;
    }

    public double annualPrecip() {
      return annualPrecip;
    }

    public double respAvgAnnualPrecip() {
      return respAvgAnnualPrecip;
    }

    public void respAvgAnnualPrecip(double value) {
      respAvgAnnualPrecip = value;
    }

    public double rotIrrEffect() {
      return rotIrrEffect;
    }

    public double rotWeightResBiomass() {
      return rotWeightResBiomass;
    }

    public double rotWeightSoilTillIntensity() {
      return rotWeightSoilTillIntensity;
    }

    public double rotWeightResAddition() {
      return rotWeightResAddition;
    }

    public double erosionRate() {
      return erosionRate;
    }

    public void erosionRate(double value) {
      erosionRate = value;
    }

    public void windEnergy(double value) {
      windEnergy = value;
    }

    public void annualPrecip(double value) {
      annualPrecip = value;
    }

    public void rotIrrEffect(double value) {
      rotIrrEffect = value;
    }

    public void rotWeightResBiomass(double value) {
      rotWeightResBiomass = value;
    }

    public void rotWeightSoilTillIntensity(double value) {
      rotWeightSoilTillIntensity = value;
    }

    public void rotWeightResAddition(double value) {
      rotWeightResAddition = value;
    }

    public String componentName() {
      return componentName;
    }

    public void componentName(String value) {
      componentName = value;
    }

    public void surface_thickness(int value) {
      surface_thickness = value;
    }

    public void num_layers(int value) {
      num_layers = value;
    }

    public int surface_thickness() {
      return surface_thickness;
    }

    public int num_layers() {
      return num_layers;
    }

    public double latitude() {
      return latitude;
    }

    public double longitude() {
      return longitude;
    }

    public String cokey() {
      return cokey;
    }

    public void latitude(double value) {
      latitude = value;
    }

    public void longitude(double value) {
      longitude = value;
    }

    public void cokey(String value) {
      cokey = value;
    }

    public JSONArray toJSON() throws JSONException {
      JSONArray ret_val = new JSONArray();
      JSONObject results = new JSONObject();

      results.put("wepp_archive_suid", weppMetaData.suid());
      results.put("annual_precipitation", weppMetaData.annualPrecip());
      results.put("wind_energy", weppMetaData.windEnergy());

      results.put("rotation_weighted_biomass", weppMetaData.rotWeightResBiomass());
      results.put("annual_precipitation", weppMetaData.annualPrecip());

      results.put("rotation_weighted_soil_tillage_intensity", weppMetaData.rotWeightSoilTillIntensity());
      results.put("erosion_rate", weppMetaData.erosionRate());

      ret_val.put(results);
      return ret_val;
    }
  }
}