// Copyright (c) Microsoft Open Technologies, Inc.
// All Rights Reserved
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// THIS CODE IS PROVIDED *AS IS* BASIS, WITHOUT WARRANTIES OR
// CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING
// WITHOUT LIMITATION ANY IMPLIED WARRANTIES OR CONDITIONS OF
// TITLE, FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABLITY OR
// NON-INFRINGEMENT.
// See the Apache 2 License for the specific language governing
// permissions and limitations under the License.

using System.Collections.Generic;
using Microsoft.AspNet.Abstractions;

namespace Microsoft.AspNet.Routing
{
    public static class RouteConstraintMatcher
    {
        public static bool Match(IDictionary<string, IRouteConstraint> constraints,
                                 [NotNull] IDictionary<string, object> routeValues,
                                 [NotNull] HttpContext httpContext,
                                 [NotNull] IRouter route,
                                 [NotNull] RouteDirection routeDirection)
        {
            if (constraints == null)
            {
                return true;
            }

            foreach (var kvp in constraints)
            {
                var constraint = kvp.Value;
                if (!constraint.Match(httpContext, route, kvp.Key, routeValues, routeDirection))
                {
                    return false;
                }
            }

            return true;
        }
    }
}