/*
 * $Id$
 *
 * This file is part of the Cloud Services Integration Platform (CSIP),
 * a Model-as-a-Service framework, API, and application suite.
 *
 * 2012-2017, OMSLab, Colorado State University.
 *
 * OMSLab licenses this file to you under the MIT license.
 * See the LICENSE file in the project root for more information.
 */
package soils.utils;

import java.util.HashMap;
import java.util.Map;

/**
 *
 * @author Joseph Levin <a href="joelevin@weru.ksu.edu">EMails</a>
 */
public class StratifiedTextures {

  public static enum textures {
    C, CL, COS, COSL, FS, FSL, L, LCOS, LFS, LS, LVFS, S, SC, SCL, SI, SIC, SICL, SIL, SL, VFS, VFSL
  };

  private static StratifiedTextures instance;

  Map<String, double[]> c_values = new HashMap<>();


  /**
   *
   * @return
   */
  public synchronized static StratifiedTextures getInstance() {
    if (instance == null) {
      instance = new StratifiedTextures();
    }
    return instance;
  }


  private StratifiedTextures() {
    c_values.put("C", new double[]{0.22, 0.13, 0.23, 0.55});
    c_values.put("CL", new double[]{0.33, 0.18, 0.33, 0.34});
    c_values.put("COS", new double[]{0.92, 0.3, 0.04, 0.04});
    c_values.put("COSL", new double[]{0.65, 0.25, 0.25, 0.1});
    c_values.put("FS", new double[]{0.92, 0.4, 0.04, 0.04});
    c_values.put("FSL", new double[]{0.65, 0.25, 0.25, 0.1});
    c_values.put("L", new double[]{0.41, 0.17, 0.41, 0.18});
    c_values.put("LCOS", new double[]{0.84, 0.25, 0.1, 0.06});
    c_values.put("LFS", new double[]{0.84, 0.45, 0.1, 0.06});
    c_values.put("LS", new double[]{0.84, 0.35, 0.1, 0.06});
    c_values.put("LVFS", new double[]{0.84, 0.55, 0.1, 0.06});
    c_values.put("S", new double[]{0.92, 0.35, 0.04, 0.04});
    c_values.put("SC", new double[]{0.53, 0.2, 0.41, 0.06});
    c_values.put("SCL", new double[]{0.59, 0.22, 0.14, 0.27});
    c_values.put("SI", new double[]{0.04, 0.02, 0.88, 0.08});
    c_values.put("SIC", new double[]{0.06, 0.04, 0.48, 0.46});
    c_values.put("SICL", new double[]{0.1, 0.07, 0.55, 0.35});
    c_values.put("SIL", new double[]{0.2, 0.1, 0.6, 0.2});
    c_values.put("SL", new double[]{0.65, 0.2, 0.25, 0.1});
    c_values.put("VFS", new double[]{0.92, 0.6, 0.04, 0.04});
    c_values.put("VFSL", new double[]{0.65, 0.35, 0.25, 0.1});
  }


  /**
   *
   * @return
   */
  public String[] textures() {
    return c_values.keySet().toArray(new String[c_values.size()]);
  }


  /**
   *
   * @param texture
   * @return
   */
  public boolean isTextureValid(String texture) {
    return c_values.containsKey(texture.toUpperCase());
  }


  protected double getValue(String texture, int i) {
    if (i < c_values.size()) {
      double[] values = c_values.get(texture.toUpperCase());
      if (values != null) {
        return values[i];
      }
    }
    return Double.NaN;
  }


  /**
   *
   * @param texture
   * @return
   */
  public double getSand(String texture) {
    return getValue(texture, 0);
  }


  /**
   *
   * @param texture
   * @return
   */
  public double getVeryFineSand(String texture) {
    return getValue(texture, 1);
  }


  /**
   *
   * @param texture
   * @return
   */
  public double getSilt(String texture) {
    return getValue(texture, 2);
  }


  /**
   *
   * @param texture
   * @return
   */
  public double getClay(String texture) {
    return getValue(texture, 3);
  }

}