using System;
using System.Configuration;

namespace Endpoint
{
	/// <summary>
	/// Defines a configuration for an oracle service endpoint
	/// </summary>
	public class OracleEndpointConfiguration : ConfigurationElement, IServiceEndpointConfiguration
	{
		/// <summary>
		/// Gets or sets the name.
		/// </summary>
		/// <value>The name.</value>
		[ConfigurationProperty("name", DefaultValue = "", IsKey = true, IsRequired = true)]
		public string Name
		{
			get { return (string)base["name"]; }
			set { base["name"] = value; }
		}

		/// <summary>
		/// Gets or sets the connection string.
		/// </summary>
		/// <value>The connection string.</value>
		[ConfigurationProperty("connectionString", DefaultValue = "", IsKey = false, IsRequired = true)]
		public string ConnectionString
		{
			get { return (string)base["connectionString"]; }
			set { base["connectionString"] = value; }
		}

		/// <summary>
		/// Gets or sets the connection string.
		/// </summary>
		/// <value>The connection string.</value>
		[ConfigurationProperty("scalarQueryString", DefaultValue = "", IsKey = false, IsRequired = true)]
		public string ScalarQueryString
		{
			get { return (string)base["scalarQueryString"]; }
			set { base["scalarQueryString"] = value; }
		}

		/// <summary>
		/// Gets or sets the connection string.
		/// </summary>
		/// <value>The connection string.</value>
		[ConfigurationProperty("expectedQueryResult", DefaultValue = "", IsKey = false, IsRequired = true)]
		public string ExpectedQueryResult
		{
			get { return (string)base["expectedQueryResult"]; }
			set { base["expectedQueryResult"] = value; }
		}
		
		/// <summary>
		/// Initializes a new instance of the <see cref="OracleEndpointConfiguration"/> class.
		/// </summary>
		internal protected OracleEndpointConfiguration()
		{}

		/// <summary>
		/// Initializes a new instance of the <see cref="OracleEndpointConfiguration"/> class.
		/// </summary>
		/// <param name="serviceName">Name of the service.</param>
		/// <param name="connectionString">The connection string.</param>
		/// <param name="scalarQueryString">The scalar query string.</param>
		/// <param name="expectedQueryResult">The expected query result.</param>
		public OracleEndpointConfiguration(string serviceName, string connectionString, string scalarQueryString, string expectedQueryResult) 
		{
			if (serviceName == null)
				throw new ArgumentNullException("serviceName");
			if (connectionString == null)
				throw new ArgumentNullException("connectionString");
			if (scalarQueryString == null)
				throw new ArgumentNullException("scalarQueryString");
			if (expectedQueryResult == null)
				throw new ArgumentNullException("expectedQueryResult");

			ConnectionString = connectionString;
			ScalarQueryString = scalarQueryString;
			ExpectedQueryResult = expectedQueryResult;
		}

		/// <summary>
		/// Determines whether the specified <see cref="T:System.Object"/> is equal to the current <see cref="T:System.Object"/>.
		/// </summary>
		/// <param name="obj">The <see cref="T:System.Object"/> to compare with the current <see cref="T:System.Object"/>.</param>
		/// <returns>
		/// true if the specified <see cref="T:System.Object"/> is equal to the current <see cref="T:System.Object"/>; otherwise, false.
		/// </returns>
		/// <exception cref="T:System.NullReferenceException">The <paramref name="obj"/> parameter is null.</exception>
		public override bool Equals(object obj)
		{
			OracleEndpointConfiguration value = obj as OracleEndpointConfiguration;
			if (value == null)
				return false;
			if (value.ConnectionString != ConnectionString || value.ScalarQueryString != ScalarQueryString)
				return false;
			return true;
		}

		/// <summary>
		/// Serves as a hash function for a OracleEndpointConfiguration.
		/// </summary>
		/// <returns>
		/// A hash code for the current <see cref="T:System.Object"/>.
		/// </returns>
		public override int GetHashCode()
		{
			return ConnectionString.GetHashCode() ^ ScalarQueryString.GetHashCode();
		}
	}

	/// <summary>
	/// 
	/// </summary>
	public class OracleEndpointConfigurationCollection : ConfigurationElementCollection
	{
		/// <summary>
		/// When overridden in a derived class, creates a new <see cref="T:System.Configuration.ConfigurationElement" />.
		/// </summary>
		/// <returns>
		/// A new <see cref="T:System.Configuration.ConfigurationElement" />.
		/// </returns>
		protected override ConfigurationElement CreateNewElement()
		{
			return new OracleEndpointConfiguration();
		}

		/// <summary>
		/// Gets the element key for a specified configuration element when overridden in a derived class.
		/// </summary>
		/// <returns>
		/// An <see cref="T:System.Object" /> that acts as the key for the specified <see cref="T:System.Configuration.ConfigurationElement" />.
		/// </returns>
		/// <param name="element">The <see cref="T:System.Configuration.ConfigurationElement" /> to return the key for. </param>
		protected override object GetElementKey(ConfigurationElement element)
		{
			return ((OracleEndpointConfiguration)element).Name;
		}
	}

	/// <summary>
	/// 
	/// </summary>
	public class OracleEndpointConfigurationSection : ConfigurationSection
	{
		/// <summary>
		/// Gets the endpoints.
		/// </summary>
		/// <value>The endpoints.</value>
		[ConfigurationProperty("endpoints")]
		public OracleEndpointConfigurationCollection Endpoints { get { return (OracleEndpointConfigurationCollection)(base["endpoints"]); } }
	}
}