// <copyright file="ChromeDriverService.cs" company="Selenium Committers">
// 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.
// </copyright>

using OpenQA.Selenium.Chromium;
using OpenQA.Selenium.Internal;
using System.IO;

namespace OpenQA.Selenium.Chrome;

/// <summary>
/// Exposes the service provided by the native ChromeDriver executable.
/// </summary>
public sealed class ChromeDriverService : ChromiumDriverService
{
    private const string DefaultChromeDriverServiceExecutableName = "chromedriver";

    /// <summary>
    /// Initializes a new instance of the <see cref="ChromeDriverService"/> class.
    /// </summary>
    /// <param name="executablePath">The full path to the ChromeDriver executable.</param>
    /// <param name="executableFileName">The file name of the ChromeDriver executable.</param>
    /// <param name="port">The port on which the ChromeDriver executable should listen.</param>
    private ChromeDriverService(string? executablePath, string? executableFileName, int port)
        : base(executablePath, executableFileName, port)
    {
    }

    /// <inheritdoc />
    protected override DriverOptions GetDefaultDriverOptions()
    {
        return new ChromeOptions();
    }

    /// <summary>
    /// Creates a default instance of the ChromeDriverService.
    /// </summary>
    /// <returns>A ChromeDriverService that implements default settings.</returns>
    public static ChromeDriverService CreateDefaultService()
    {
        return new ChromeDriverService(null, null, PortUtilities.FindFreePort());
    }

    /// <summary>
    /// Creates a default instance of the ChromeDriverService using a specified path to the ChromeDriver executable.
    /// </summary>
    /// <param name="driverPath">The path to the executable or the directory containing the ChromeDriver executable.</param>
    /// <returns>A ChromeDriverService using a random port.</returns>
    public static ChromeDriverService CreateDefaultService(string? driverPath)
    {
        if (File.Exists(driverPath))
        {
            string fileName = Path.GetFileName(driverPath);
            string driverFolder = Path.GetDirectoryName(driverPath)!;

            return CreateDefaultService(driverFolder, fileName);
        }
        else
        {
            string fileName = ChromiumDriverServiceFileName(DefaultChromeDriverServiceExecutableName);
            string? driverFolder = driverPath;

            return CreateDefaultService(driverFolder, fileName);
        }
    }

    /// <summary>
    /// Creates a default instance of the ChromeDriverService using a specified path to the ChromeDriver executable with the given name.
    /// </summary>
    /// <param name="driverPath">The directory containing the ChromeDriver executable.</param>
    /// <param name="driverExecutableFileName">The name of the ChromeDriver executable file.</param>
    /// <returns>A ChromeDriverService using a random port.</returns>
    public static ChromeDriverService CreateDefaultService(string? driverPath, string? driverExecutableFileName)
    {
        return new ChromeDriverService(driverPath, driverExecutableFileName, PortUtilities.FindFreePort());
    }

}