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// Licensed to the Software Freedom Conservancy (SFC) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The SFC licenses this file
// to you 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 com.thoughtworks.selenium.webdriven.commands;

import com.thoughtworks.selenium.SeleniumException;
import com.thoughtworks.selenium.webdriven.ElementFinder;
import com.thoughtworks.selenium.webdriven.JavascriptLibrary;
import com.thoughtworks.selenium.webdriven.SeleneseCommand;

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;

import java.util.List;

public class FindFirstSelectedOptionProperty extends SeleneseCommand {

  private final JavascriptLibrary library;
  private final ElementFinder finder;
  private final String property;

  public FindFirstSelectedOptionProperty(JavascriptLibrary library, ElementFinder finder,
      String property) {
    this.library = library;
    this.finder = finder;
    this.property = property;
  }

  @Override
  protected String handleSeleneseCommand(WebDriver driver, String selectLocator, String ignored) {
    SeleniumSelect select = new SeleniumSelect(library, finder, driver, selectLocator);
    List allOptions = select.getSelectedOptions();

    if (allOptions.isEmpty()) {
      throw new SeleniumException("No options are selected: " + selectLocator);
    }

    return allOptions.get(0).getAttribute(property);
  }
}