// Copyright (c) 2017 schick Informatik
// Description:

using System;
using System.Collections.Generic;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Web;

namespace bsmd.LockingService
{
    // NOTE: You can use the "Rename" command on the "Refactor" menu to change the interface name "IService1" in both code and config file together.
    [ServiceContract]    
    public interface IService
    {
        /// <summary>
        /// Request a lock for a particular core
        /// </summary>        
        /// <returns>true if successful</returns>
        
        [OperationContract]        
        [WebGet(BodyStyle = WebMessageBodyStyle.Wrapped, RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json)]
        Guid Lock(Guid messageCoreId, Guid userId);


        /// <summary>
        /// Relinquish lock for a particular core
        /// </summary>        
        [OperationContract]
        [WebGet(BodyStyle = WebMessageBodyStyle.Wrapped, RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json)]
        void Unlock(Guid messageCoreId, Guid userId);

        /// <summary>
        /// Get all locks currently in use (for search result..)
        /// </summary>
        [OperationContract]
        [WebGet(BodyStyle = WebMessageBodyStyle.Wrapped, RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json)]
        List<CoreLock> GetLocks();

        /// <summary>
        /// To avoid Timeout, send keepalive message
        /// </summary>
        /// <param name="currentLocks">currently held locks</param>
        [OperationContract]
        [WebGet(BodyStyle = WebMessageBodyStyle.Wrapped, RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json)]
        void LockRefresh(List<Guid> currentLocks, Guid userId);

        /// <summary>
        /// send a log message (convenience helper)
        /// </summary>
        [OperationContract]
        [WebGet(BodyStyle = WebMessageBodyStyle.Wrapped, RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json)]
        void Log(string msg, string host, Guid userId);

    }
    
}