using System;
using System.Collections.Generic;
using Aurora.Proto.Party;

namespace Aurora.Services.EventManager
{
    public interface IEventManager
    {
        /// <summary>
        /// Get the list of event type subscriptions for a given sessionIdentifier id.
        /// </summary>
        /// <param name="sessionIdentifier">sessionIdentifier Id</param>
        /// <returns></returns>
        List<EventType> GetSubscriptionList(string sessionIdentifier);

        /// <summary>
        /// Get the number of event subscriptions for a given sessionIdentifier
        /// </summary>
        /// <param name="sessionIdentifier">sessionIdentifier Id</param>
        /// <returns></returns>
        int GetSubscriptionCount(string sessionIdentifier);

        /// <summary>
        /// Add a new subscription 
        /// </summary>
        /// <param name="sessionIdentifier"></param>
        /// <param name="type"></param>
        bool AddSubscription(string sessionIdentifier, EventType type);

        /// <summary>
        /// Add a list of subscriptions. This unsubscribes from unused events.
        /// </summary>
        /// <param name="sessionIdentifier">The browser sessionIdentifier id.</param>
        /// <param name="types">The list of event types to subscribe to.</param>
        void AddSubscriptionList(string sessionIdentifier, List<EventType> types);

        /// <summary>
        /// Unsubscribe from a given event type.
        /// </summary>
        /// <param name="sessionIdentifier">sessionIdentifier Id</param>
        /// <param name="type">Event Type to be removed</param>
        void RemoveSubscription(string sessionIdentifier, EventType type);

        void RemoveSubscriptionList(string sessionIdentifier, List<EventType> types);

        /// <summary>
        /// Remove all subscriptons for a given sessionIdentifier.
        /// </summary>
        /// <param name="sessionIdentifier">sessionIdentifier Id</param>
        void RemoveAllSubscriptions(string sessionIdentifier);

        void AddEventHandler(Action<BaseEvent> action, Action cancel, string sessionIdentifierId);

        void RemoveEventHandler(string sessionIdentifierId);

        void CancelEventStream(string sessionIdentifierId);

        void FireEvent(BaseEvent bEvent);
    }
}