using System;
using LinFu.IoC.Interfaces;

namespace LinFu.IoC
{
    /// <summary>
    ///     Reprsents the default implementation of the <see cref="IServiceRequest" /> interface.
    /// </summary>
    internal class ServiceRequest : ServiceInfo, IServiceRequest
    {
        /// <summary>
        ///     Initializes the <see cref="ServiceRequest" /> class.
        /// </summary>
        /// <param name="serviceName">The name of the requested service.</param>
        /// <param name="serviceType">The requested service type.</param>
        /// <param name="proposedArguments">The proposed set of arguments that will be given to the factory.</param>
        /// <param name="proposedFactory">The <see cref="IFactory" /> instance that will be used to handle the service request.</param>
        /// <param name="container">The host container.</param>
        internal ServiceRequest(string serviceName, Type serviceType,
            object[] proposedArguments, IFactory proposedFactory, IServiceContainer container)
            : base(serviceName, serviceType)
        {
            ProposedArguments = proposedArguments;
            ProposedFactory = proposedFactory;
            Container = container;

            // The proposed arguments
            // will match the actual arguments by default
            ActualArguments = proposedArguments;

            // The same rule applies to the ActualFactory
            // property
            ActualFactory = proposedFactory;
        }


        /// <summary>
        ///     Gets the value indicating the original arguments that
        ///     were given during the service request.
        /// </summary>
        public object[] ProposedArguments { get; }

        /// <summary>
        ///     Gets the value indicating the original <see cref="IFactory" /> instance
        ///     that will be used to handle the service request.
        /// </summary>
        public IFactory ProposedFactory { get; }

        /// <summary>
        ///     The container that will handle the service request.
        /// </summary>
        public IServiceContainer Container { get; }

        /// <summary>
        ///     Gets or sets the value indicating the actual arguments that
        ///     will be used for the service request.
        /// </summary>
        public object[] ActualArguments { get; set; }

        /// <summary>
        ///     Gets or sets the value indicating the actual <see cref="IFactory" /> instance
        ///     that will be used to handle the service request.
        /// </summary>
        public IFactory ActualFactory { get; set; }
    }
}