using System.Data;
using Connected.ServiceModel.Client.Data.Remote;

namespace Connected.ServiceModel.Client.Data;
/// <summary>
/// Represents the REST connection to the TomPIT.connected Table Service.
/// </summary>
internal sealed class TableConnection : IDbConnection
{
	public TableConnection(RemoteTableService tables, string connectionString)
	{
		Tables = tables;
		ConnectionString = connectionString;
	}

	public RemoteTableService Tables { get; }

	/// <summary>
	/// The connection string (URL) used when performing the requests. 
	/// </summary>
	public string ConnectionString { get; set; }
	/// <summary>
	/// The request timeout in seconds.
	/// </summary>
	public int ConnectionTimeout => 120;
	/// <summary>
	/// The database (partition) on the server to be used.
	/// </summary>
	public string Database { get; private set; }
	/// <summary>
	/// The connection state. It's always open since it's a stateless connection.
	/// </summary>
	public ConnectionState State => ConnectionState.Open;
	/// <summary>
	/// Starts the new storage transaction.
	/// </summary>
	/// <returns>A new <see cref="IDbTransaction"/>.</returns>
	public IDbTransaction BeginTransaction()
	{
		return new TableTransaction(this);
	}
	/// <summary>
	/// Starts the new storage transaction.
	/// </summary>
	/// <param name="il">The isolation level. This property is ignored on this connection since 
	/// it's always <see cref="IsolationLevel.Snapshot"/>.</param>
	/// <returns>A new <see cref="IDbTransaction"/>.</returns>
	public IDbTransaction BeginTransaction(IsolationLevel il)
	{
		return BeginTransaction();
	}
	/// <summary>
	/// The database is actually the Partition on the remote service. Calling this method
	/// changes the partition to be used on the remote.
	/// </summary>
	/// <param name="databaseName">The partition name. It is created if it doesn't exist.</param>
	public void ChangeDatabase(string databaseName)
	{
		Database = databaseName;
	}
	/// <summary>
	/// This method completes the connection by calling  <see cref="IDbTransaction.Rollback"/>
	/// if <see cref="IDbTransaction.Commit"/> has not been called.
	/// </summary>
	public void Close()
	{

	}

	public IDbCommand CreateCommand()
	{
		return new TableDataCommand(Tables);
	}

	public void Dispose()
	{
	}
	/// <summary>
	/// This method doesn't do anything since the connection is stateless any is theoretically
	/// always in open state.
	/// </summary>
	public void Open()
	{
	}
}