// Copyright (C) Stichting Deltares 2017. All rights reserved.
//
// This file is part of the DAM Engine.
//
// The DAM Engine is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// All names, logos, and references to "Deltares" are registered trademarks of
// Stichting Deltares and remain full property of Stichting Deltares at all times.
// All rights reserved.

using System;
using System.Collections;

namespace Deltares.DamEngine.Calculators.General
{
    /// <summary>
    /// Entry point for the current context
    /// </summary>
    public static class Context
    {
        [ThreadStatic]
        private static IContext currentContext;

        /// <summary>
        /// Application wide context
        /// </summary>
        public static IContext CurrentContext
        {
            get
            {
                return currentContext;
            }
            set
            {
                currentContext = value;
            }
        }

        public static bool? IsVisible(object source, string member)
        {
            bool? visibility = null;
            if (currentContext != null)
            {
                visibility = currentContext.IsVisible(source, member);
            }
            return visibility;
        }

        public static bool? IsEnabled(object source, string member)
        {
            bool? enabled = null;
            if (currentContext != null)
            {
                enabled = currentContext.IsEnabled(source, member);
            }
            return enabled;
        }

        public static bool ShouldValidate(object source, string member, bool defaultValidate)
        {
            if (currentContext == null)
            {
                return defaultValidate;
            }

            bool? validate = currentContext.ShouldValidate(source, member);
            return validate.HasValue ? validate.Value : defaultValidate;
        }

        public static ICollection GetDomain(object source, string member, ICollection defaultDomain)
        {
            if (currentContext == null)
            {
                return defaultDomain;
            }

            ICollection domain = currentContext.GetDomain(source, member);
            return domain ?? defaultDomain;
        }

        public static object GetFormat(Type type, object source, string property)
        {
            return currentContext != null ? currentContext.GetFormat(type, source, property) : null;
        }

        public static int[] GetPropertyOrder(Type type, string property)
        {
            return currentContext != null ? currentContext.GetPropertyOrder(type, property) : null;
        }

        public static double? GetMinimum(object source, string property)
        {
            return currentContext != null ? currentContext.GetMinimum(source, property) : null;
        }

        public static double? GetMaximum(object source, string property)
        {
            return currentContext != null ? currentContext.GetMaximum(source, property) : null;
        }

        public static object GetDefault(Type type, string property)
        {
            return currentContext != null ? currentContext.GetDefault(type, property) : null;
        }
    }
}