using System;
using System.Configuration;

using BLToolkit.TypeBuilder;

namespace BLToolkit.Configuration
{
    internal class TypeFactoryElement : ElementBase
    {
        protected static readonly ConfigurationProperty _propSaveTypes =
            new ConfigurationProperty("saveTypes",    typeof(bool),    false, ConfigurationPropertyOptions.None);
        protected static readonly ConfigurationProperty _propSealTypes =
            new ConfigurationProperty("sealTypes",    typeof(bool),    true,  ConfigurationPropertyOptions.None);
        protected static readonly ConfigurationProperty _propLoadTypes =
            new ConfigurationProperty("loadTypes",    typeof(bool),    false, ConfigurationPropertyOptions.None);
        protected static readonly ConfigurationProperty _propAssemblyPath =
            new ConfigurationProperty("assemblyPath", typeof(string),  null,  ConfigurationPropertyOptions.None);
        protected static readonly ConfigurationProperty _propVersion =
            new ConfigurationProperty("version",      typeof(string),  null,  ConfigurationPropertyOptions.None);
        protected static readonly ConfigurationProperty _propKeyFile =
            new ConfigurationProperty("keyFile",      typeof(string),  null,  ConfigurationPropertyOptions.None);

        public TypeFactoryElement()
        {
            _properties.Add(_propSaveTypes);
            _properties.Add(_propSealTypes);
            _properties.Add(_propLoadTypes);
            _properties.Add(_propAssemblyPath);
            _properties.Add(_propVersion);
            _properties.Add(_propKeyFile);
        }

        /// <summary>
        /// Gets a value indicating whether the <see cref="TypeFactory"/>
        /// will save generated assemblies to the disk. Default is <see langword="false"/>.
        /// </summary>
        public bool SaveTypes
        {
            get { return (bool) base[_propSaveTypes]; }
        }

        /// <summary>
        /// Gets a value indicating whether the <see cref="TypeFactory"/>
        /// will seal generated types. Default is <see langword="true"/>.
        /// </summary>
        public bool SealTypes
        {
            get { return (bool) base[_propSealTypes]; }
        }

        /// <summary>
        /// Gets a value indicating whether the <see cref="TypeFactory"/>
        /// will load types generated by BLTGen tool. Default is <see langword="false"/>.
        /// </summary>
        public bool LoadTypes
        {
            get { return (bool) base[_propLoadTypes]; }
        }

        /// <summary>
        /// Gets a path to the global assembly. Default is <see langword="null"/>.
        /// </summary>
        /// <seealso cref="TypeFactory.SetGlobalAssembly(string)"/>
        public string AssemblyPath
        {
            get { return (string) base[_propAssemblyPath]; }
        }

        /// <summary>
        /// Gets the version of global assembly. Default is <see langword="null"/>.
        /// </summary>
        /// <seealso cref="TypeFactory.SetGlobalAssembly(string,System.Version,string)"/>
        public Version Version
        {
            get
            {
                string strVersion = (string)base[_propVersion];

                return string.IsNullOrEmpty(strVersion)? null:
                    new Version(strVersion);
            }
        }

        /// <summary>
        /// Gets a path to the key file to sign global assembly. Default is <see langword="null"/>.
        /// </summary>
        /// <seealso cref="TypeFactory.SetGlobalAssembly(string,System.Version,string)"/>
        public string KeyFile
        {
            get { return (string) base[_propKeyFile]; }
        }
    }
}