using System;

using System.Collections.Generic;

using System.IO;

using Common.Logging;

using Commons.Utils;

using Commons.UI.LayoutDataStore.Properties;



namespace Commons.UI.LayoutDataStore

{

    /// <summary>

    /// Allowed saved layout data for form stores

    /// <rus>

    /// ïîçâîëÿåò ñîõðàíèòü íàñòðîéêè ôîðìû ñ åå êîíòðîëàìè</rus>

    /// </summary>

    public class LayoutStoreWorker : ILayoutStoreWorker

    {

    	#region logging



    	protected static readonly ILog LOG =

    		LogManager.GetLogger(typeof (LayoutStoreWorker));



    	#endregion



        private const string ConfigFileExt = "xml";

        private const string DefaultPostfix = "def";

        protected INamableControl form;

        private string configFileName;

        private ILayoutDataStorePathFactory layoutDataStorePathFactory;



        protected internal IList<ILayoutDataStore> stores;



        public LayoutStoreWorker(ILayoutDataStorePathFactory layoutDataStorePathFactory)

        {

            this.layoutDataStorePathFactory = layoutDataStorePathFactory;

        }



        /// <summary>

        /// used to directly set file name for layout data file

        /// </summary>

        /// <param name="layoutDataStorePathFactory"></param>

        /// <param name="onlyFileName"></param>

        /// <param name="stores"></param>

        public LayoutStoreWorker(ILayoutDataStorePathFactory layoutDataStorePathFactory,

                                 string onlyFileName, IList<ILayoutDataStore> stores)

            : this(layoutDataStorePathFactory)

        {

            if (string.IsNullOrEmpty(onlyFileName))

                throw new ArgumentNullException("onlyFileName", Resource.FileNameCanNotBeEmpty);

            configFileName = layoutDataStorePathFactory.GetConfigFileName(onlyFileName, ConfigFileExt);

            this.stores = stores;

        }



        public LayoutStoreWorker(ILayoutDataStorePathFactory layoutDataStorePathFactory, string onlyFileName,

                                 params ILayoutDataStore[] stores)

            : this(layoutDataStorePathFactory, onlyFileName, stores as IList<ILayoutDataStore>)

        {

        }







        /// <summary>

        /// constructor 

        /// <rus>

        /// êîíñòðóêòîð</rus>

        /// </summary>

        /// <param name="layoutDataStorePathFactory"></param>

        /// <param name="form"> winform on which needs to be store stores layout data 

        /// <rus>ôîðìà, íà êîòîðîé íóæíî ñîõðàíèòü ðàñïîëîæåíèå êîíòðîëåê</rus>

        /// </param>

        /// <param name="stores"> control list for layout data store

        ///                    <rus>ñïèñîê êîíòðîëîâ ÷üå ðàñïîëîæåíèå íóæíî ñîõðàíèòü </rus>

        /// </param>

        public LayoutStoreWorker(ILayoutDataStorePathFactory layoutDataStorePathFactory,

                                 INamableControl form, IList<ILayoutDataStore> stores)

            : this(layoutDataStorePathFactory)

        {

            if ((form == null) || (string.IsNullOrEmpty(form.Name)))

                throw new ArgumentNullException("form", Resource.NameOfTheFormMustBeUnic);

            this.form = form;

            this.stores = stores;

        }





        public LayoutStoreWorker(ILayoutDataStorePathFactory layoutDataStorePathFactory, INamableControl form,

                                 params ILayoutDataStore[] stores)

            : this(layoutDataStorePathFactory, form, (IList<ILayoutDataStore>) stores)

        {

        }



        public ILayoutDataStorePathFactory LayoutDataStorePathFactory

        {

            get { return layoutDataStorePathFactory; }

            set { layoutDataStorePathFactory = value; }

        }



        #region ILayoutStoreWorker Members



        /// <summary>

        /// filename of Config-file

        /// <rus>

        /// èìÿ êîíôèãóðàöèîííîãî ôàéëà</rus>

        /// </summary>

        public string ConfigFileName

        {

            get

            {

                ///åñëè èìÿ íå ïóñòî, òî âûñòàâëÿåòñÿ âðó÷íóþ

                if (string.IsNullOrEmpty(configFileName))

                    configFileName = LayoutDataStorePathFactory.GetConfigFileName(form.Name, ConfigFileExt);

                return configFileName;

            }

            set { configFileName = value; }

        }



        /// <summary>

        /// saved layout data for form stores

        /// <rus>

        /// Ñîõðàíèòü íàñòðîéêè ôîðìû è åå êîíòðîëîâ</rus>

        /// </summary>

        public void Save()

        {

            LayoutSettings.WriteXml(ConfigFileName, stores);

        }



        /// <summary>

        /// saved layout data for form stores

        /// <rus>

        /// Ñîõðàíèòü íàñòðîéêè ôîðìû è åå êîíòðîëîâ</rus>

        /// </summary>

        public void SaveDefault()

        {

            LayoutSettings.WriteXml(DefaultLayout, stores);

        }



        /// <summary>

        /// filename of Config-file with Default values

        /// <rus>

        /// èìÿ êîíôèãóðàöèîííîãî ôàéëà c íàñòðîéêàìè ïî óìîë÷àíèþ</rus>

        /// </summary>

        public string DefaultLayout

        {

            get

            {

                return string.Format("{0}{1}.{2}"

                                     , Path.ChangeExtension(ConfigFileName, "")

                                     , DefaultPostfix

                                     , ConfigFileExt);

            }

        }





        /// <summary>

        /// load layout data for form stores

        /// <rus>

        /// Çàãðóçèòü íàñòðîéêè ôîðìû è åå êîíòðîëîâ</rus>

        /// </summary>

        public void Load()

        {

            FileInfo fileInfo = new FileInfo(FileUtils.MakeValidFilePath(ConfigFileName));

            if (!fileInfo.Exists)

            {

                LoadDefault();

                return;

            }

            try

            {

                LayoutSettings.ReadXml(ConfigFileName, false, stores);

            }

            catch (Exception e)

            {

				LOG.Error(e);

				throw new ApplicationException(Resource.LoadingIsInterruptedWillBeLoadedByDefault,e);

            }

        }



        /// <summary>

        /// set user interface control allowing to load a state of Entity by default.

        /// <rus>

        /// óñòàíîâèòü êîíòðîëüêó, êîòîðàÿ äàñò ïîëüçîâàòåëþ âîçìîæíîñòü 

        /// çàãðóçèòü ñîñòîÿíèå Entity, ïðèíÿòîå ïî óìîë÷àíèþ</rus>

        /// </summary>

        public void SetUI4LoadDefault()

        {

            if (stores != null)

                foreach (ILayoutDataStore store in stores)

                {

                    store.SetUI4LoadDefault(this);

                }

        }



        /// <summary>

        /// load default layout data for form stores

        /// <rus>

        /// Çàãðóçèòü íàñòðîéêè ôîðìû è åå êîíòðîëîâ ïî óìîë÷àíèþ</rus>

        /// </summary>

        public void LoadDefault()

        {

            FileInfo fileInfo = new FileInfo(FileUtils.MakeValidFilePath(DefaultLayout));

            if (!fileInfo.Exists)

                return;

            LayoutSettings.ReadXml(DefaultLayout, true, stores);

        }



        /// <summary>

        /// load default layout data for control

        /// <rus>

        /// Çàãðóçèòü íàñòðîéêó ïî óìîë÷àíèþ äëÿ êîíêðåòíîãî êîíòðîëà</rus>

        /// </summary>

        public void LoadDefault(ILayoutDataStore control)

        {

            LoadStoreFromFile(DefaultLayout, control);

        }



        /// <summary>

        /// load layout data for control

        /// <rus>

        /// Çàãðóçèòü íàñòðîéêó äëÿ êîíêðåòíîãî êîíòðîëà</rus>

        /// </summary>

        public void Load(ILayoutDataStore control)

        {

            LoadStoreFromFile(ConfigFileName, control);

        }



        #endregion



        private static void LoadStoreFromFile(string fileName, ILayoutDataStore store)

        {

            FileInfo fileInfo = new FileInfo(FileUtils.MakeValidFilePath(fileName));

            if (!fileInfo.Exists)

                return;

            LayoutSettings.ReadXml(fileName, store, true);

        }



		public void Init()

		{

			SaveDefault();

			SetUI4LoadDefault();

			Load();

		}

    }

}