// <copyright file="Configuration.cs" company="SoluiNet">

// Copyright (c) SoluiNet. All rights reserved.

// </copyright>

namespace SoluiNet.Core.Configuration

{

using System.Diagnostics.CodeAnalysis;

using System.Globalization;

using System.IO;

using System.Linq;

using System.Xml;

using System.Xml.Serialization;

/// <summary>

/// Provides a class which allows working with the configuration files.

/// </summary>

[SuppressMessage(

"Microsoft.Naming",

"CA1724:TypeNamesShouldNotMatchNamespaces",

Justification = "The class name Configuration is easier to find and to understand than some class name with a prefix or suffix")]

public static class Configuration

{

/// <summary>

/// Get the value of an configuration entry.

/// </summary>

/// <param name="entryName">The entry name.</param>

/// <param name="pluginName">The plugin name. If not provided "Core" will be used.</param>

/// <param name="alternativeConfigKey">An alternative configuration in which can be searched for the configuration entry.</param>

/// <returns>The value of the configuration entry as a <see cref="string"/>.</returns>

public static string GetConfigurationEntry(string entryName, string pluginName = "Core", string alternativeConfigKey = "")

{

var config = ReadXmlConfiguration(!string.IsNullOrEmpty(alternativeConfigKey) ? string.Format(CultureInfo.InvariantCulture, "Configuration.{0}", alternativeConfigKey) : string.Empty);

var pluginArea = config?.SoluiNetPlugin.FirstOrDefault(x => x.name == pluginName);

if (pluginArea == null)

{

return string.Empty;

}

var configurationEntry = pluginArea.SoluiNetConfigurationEntry.FirstOrDefault(x => x.name == entryName);

return configurationEntry != null ? configurationEntry.Value : string.Empty;

}

/// <summary>

/// Read the XML configuration.

/// </summary>

/// <param name="configPath">The configuration path. If not provided an empty string will be used.</param>

/// <returns>The deserialized <see cref="SoluiNetConfigurationType"/> which could be read from the XML configuration.</returns>

private static SoluiNetConfigurationType ReadXmlConfiguration(string configPath = "")

{

var configFilePath = configPath;

if (string.IsNullOrEmpty(configPath))

{

configFilePath = "Configuration.xml";

}

if (!File.Exists(configFilePath))

{

return null;

}

var xmlReader = XmlReader.Create(configFilePath, new XmlReaderSettings() { XmlResolver = null });

try

{

var xmlSerializer = new XmlSerializer(typeof(SoluiNetConfigurationType));

return xmlSerializer.Deserialize(xmlReader) as SoluiNetConfigurationType;

}

finally

{

xmlReader.Dispose();

}

}

}

}