using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.DynamicData;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace MonoTests.DataSource
{
    [PersistChildren(false)]
    [ParseChildren(true)]
    public class DynamicDataSource : DataSourceControl, IDynamicDataSource
    {
        const string DEFAULT_VIEW_NAME = "DefaultView";
        static readonly string[] emptyNames = new string[] { "DefaultView" };

        DynamicDataSourceView defaultView;
        ParameterCollection whereCollection;
        
        public DynamicDataSourceView DefaultView
        {
            get
            {
                if (defaultView == null)
                    defaultView = new DynamicDataSourceView (this, DEFAULT_VIEW_NAME);
                return defaultView;
            }
        }

        public string DataContainerTypeName
        {
            get;
            set;
        }

        public object DataContainerInstance
        {
            get;
            set;
        }

        #region DataSourceControl Members
        protected override DataSourceView GetView (string viewName)
        {
            if (String.IsNullOrEmpty (viewName))
                return DefaultView;

            return new DynamicDataSourceView (this, viewName);
        }
        #endregion

        #region IDynamicDataSource Members

        public bool AutoGenerateWhereClause
        {
            get;
            set;
        }

        public Type ContextType
        {
            get;
            set;
        }

        public bool EnableDelete
        {
            get;
            set;
        }

        public bool EnableInsert
        {
            get;
            set;
        }

        public bool EnableUpdate
        {
            get;
            set;
        }

        public string EntitySetName
        {
            get;
            set;
        }

        public event EventHandler<DynamicValidatorEventArgs> Exception;

        public string Where
        {
            get;
            set;
        }

        [PersistenceMode (PersistenceMode.InnerProperty)]
        public ParameterCollection WhereParameters
        {
            get {
                if (whereCollection == null)
                    whereCollection = new ParameterCollection ();
                return whereCollection;
            }
        }

        #endregion

        #region IDataSource Members
        DataSourceView IDataSource.GetView (string viewName)
        {
            return GetView (viewName);
        }

        ICollection IDataSource.GetViewNames ()
        {
            return emptyNames;
        }

        #endregion
    }
}