/**
 * 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.forward;

import com.opengamma.engine.ComputationTarget;
import com.opengamma.engine.value.ValueProperties;
import com.opengamma.engine.value.ValuePropertyNames;
import com.opengamma.engine.value.ValueRequirement;
import com.opengamma.financial.analytics.model.CalculationPropertyNamesAndValues;
import com.opengamma.financial.analytics.model.discounting.DiscountingFunction;
import com.opengamma.financial.analytics.model.forex.ForexVisitors;
import com.opengamma.financial.currency.CurrencyPair;
import com.opengamma.financial.security.FinancialSecurity;
import com.opengamma.util.money.Currency;

/**
 * Base class for functions that calculate values for FX forward where the currency
 * property is set.
 * @deprecated Use {@link DiscountingFunction}
 */
@Deprecated
public abstract class FXForwardSingleValuedFunction extends FXForwardFunction {

  public FXForwardSingleValuedFunction(final String valueRequirementName) {
    super(valueRequirementName);
  }

  @Override
  protected ValueProperties.Builder getResultProperties(final ComputationTarget target) {
    return createValueProperties()
        .with(ValuePropertyNames.CALCULATION_METHOD, CalculationPropertyNamesAndValues.DISCOUNTING)
        .withAny(ValuePropertyNames.PAY_CURVE)
        .withAny(ValuePropertyNames.RECEIVE_CURVE)
        .withAny(ValuePropertyNames.PAY_CURVE_CALCULATION_CONFIG)
        .withAny(ValuePropertyNames.RECEIVE_CURVE_CALCULATION_CONFIG)
        .withAny(ValuePropertyNames.CURRENCY);
  }

  @Override
  protected ValueProperties.Builder getResultProperties(final ComputationTarget target, final String payCurveName, final String receiveCurveName, final String payCurveCalculationConfig,
      final String receiveCurveCalculationConfig, final CurrencyPair baseQuotePair) {
    return createValueProperties()
        .with(ValuePropertyNames.CALCULATION_METHOD, CalculationPropertyNamesAndValues.DISCOUNTING)
        .with(ValuePropertyNames.PAY_CURVE, payCurveName)
        .with(ValuePropertyNames.RECEIVE_CURVE, receiveCurveName)
        .with(ValuePropertyNames.PAY_CURVE_CALCULATION_CONFIG, payCurveCalculationConfig)
        .with(ValuePropertyNames.RECEIVE_CURVE_CALCULATION_CONFIG, receiveCurveCalculationConfig)
        .with(ValuePropertyNames.CURRENCY, getResultCurrency(target, baseQuotePair));
  }

  @Override
  protected ValueProperties.Builder getResultProperties(final ComputationTarget target, final ValueRequirement desiredValue) {
    final String payCurveName = desiredValue.getConstraint(ValuePropertyNames.PAY_CURVE);
    final String receiveCurveName = desiredValue.getConstraint(ValuePropertyNames.RECEIVE_CURVE);
    final String payCurveCalculationConfig = desiredValue.getConstraint(ValuePropertyNames.PAY_CURVE_CALCULATION_CONFIG);
    final String receiveCurveCalculationConfig = desiredValue.getConstraint(ValuePropertyNames.RECEIVE_CURVE_CALCULATION_CONFIG);
    final String currency = desiredValue.getConstraint(ValuePropertyNames.CURRENCY);
    return createValueProperties()
        .with(ValuePropertyNames.CALCULATION_METHOD, CalculationPropertyNamesAndValues.DISCOUNTING)
        .with(ValuePropertyNames.PAY_CURVE, payCurveName)
        .with(ValuePropertyNames.RECEIVE_CURVE, receiveCurveName)
        .with(ValuePropertyNames.PAY_CURVE_CALCULATION_CONFIG, payCurveCalculationConfig)
        .with(ValuePropertyNames.RECEIVE_CURVE_CALCULATION_CONFIG, receiveCurveCalculationConfig)
        .with(ValuePropertyNames.CURRENCY, currency);
  }

  protected static String getResultCurrency(final ComputationTarget target, final CurrencyPair baseQuotePair) {
    final FinancialSecurity security = (FinancialSecurity) target.getSecurity();
    final Currency payCurrency = security.accept(ForexVisitors.getPayCurrencyVisitor());
    final Currency receiveCurrency = security.accept(ForexVisitors.getReceiveCurrencyVisitor());
    Currency ccy;
    if (baseQuotePair.getBase().equals(payCurrency)) {
      ccy = payCurrency;
    } else {
      ccy = receiveCurrency;
    }
    return ccy.getCode();
  }
}