/**
 * Copyright (C) 2012 - present by OpenGamma Inc. and the OpenGamma group of companies
 *
 * Please see distribution for license.
 */
package com.opengamma.financial.analytics.model.forex.option.black;

import java.util.Collections;
import java.util.Set;

import org.apache.commons.lang.Validate;

import com.opengamma.engine.ComputationTarget;
import com.opengamma.engine.function.FunctionCompilationContext;
import com.opengamma.engine.value.ValuePropertyNames;
import com.opengamma.engine.value.ValueRequirement;
import com.opengamma.engine.value.ValueRequirementNames;
import com.opengamma.financial.property.DefaultPropertyFunction;
import com.opengamma.financial.security.FinancialSecurityTypes;

/**
 *
 */
public class FXOneLookBarrierOptionBlackDefaultPropertiesFunction extends DefaultPropertyFunction {

  private final String _callSpreadFullWidth;
  private final String _barrierOverhedge;

  private static final String[] s_valueNames = new String[] {
    ValueRequirementNames.PRESENT_VALUE,
    ValueRequirementNames.VALUE_DELTA,
    ValueRequirementNames.VALUE_GAMMA,
    ValueRequirementNames.VALUE_VEGA,
    ValueRequirementNames.VEGA_QUOTE_MATRIX,
    ValueRequirementNames.VALUE_VANNA,
    ValueRequirementNames.VALUE_VOMMA
  };

  public FXOneLookBarrierOptionBlackDefaultPropertiesFunction(final String barrierOverhedge, final String callSpreadFullWidth) {
    super(FinancialSecurityTypes.FX_BARRIER_OPTION_SECURITY, true);
    Validate.notNull(barrierOverhedge, "No barrierOverhedge name was provided to use as default value.");
    Validate.notNull(callSpreadFullWidth, "No callSpreadFullWidth name was provided to use as default value.");
    _barrierOverhedge = barrierOverhedge;
    _callSpreadFullWidth = callSpreadFullWidth;
  }


  @Override
  protected void getDefaults(PropertyDefaults defaults) {
    for (final String valueName : s_valueNames) {
      defaults.addValuePropertyName(valueName, ValuePropertyNames.BINARY_OVERHEDGE);
      defaults.addValuePropertyName(valueName, ValuePropertyNames.BINARY_SMOOTHING_FULLWIDTH);
    }
  }

  @Override
  protected Set<String> getDefaultValue(FunctionCompilationContext context, ComputationTarget target, ValueRequirement desiredValue, String propertyName) {
    if (ValuePropertyNames.BINARY_OVERHEDGE.equals(propertyName)) {
      return Collections.singleton(_barrierOverhedge);
    } else if (ValuePropertyNames.BINARY_SMOOTHING_FULLWIDTH.equals(propertyName)) {
      return Collections.singleton(_callSpreadFullWidth);
    }
    return null;
  }

}