using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

using Svelto.ECS;

namespace GamecraftModdingAPI.Events
{
    /// <summary>
    /// Convenient factories for mod event engines
    /// </summary>
    public static class EventEngineFactory
    {
        /// <summary>
        /// Factory method which automatically adds the SimpleEventHandlerEngine to the Manager
        /// </summary>
        /// <param name="name">The name of the engine</param>
        /// <param name="type">The type of event to handle</param>
        /// <param name="onActivated">The operation to do when the event is created</param>
        /// <param name="onDestroyed">The operation to do when the event is destroyed (if applicable)</param>
        /// <returns>The created object</returns>
        public static SimpleEventHandlerEngine CreateAddSimpleHandler(string name, int type, Action onActivated, Action onDestroyed)
        {
            var engine = new SimpleEventHandlerEngine(onActivated, onDestroyed, type, name);
            EventManager.AddEventHandler(engine);
            return engine;
        }

        /// <summary>
        /// Factory method which automatically adds the SimpleEventHandlerEngine to the Manager
        /// </summary>
        /// <param name="name">The name of the engine</param>
        /// <param name="type">The type of event to handle</param>
        /// <param name="onActivated">The operation to do when the event is created</param>
        /// <param name="onDestroyed">The operation to do when the event is destroyed (if applicable)</param>
        /// <returns>The created object</returns>
        public static SimpleEventHandlerEngine CreateAddSimpleHandler(string name, int type, Action<EntitiesDB> onActivated, Action<EntitiesDB> onDestroyed)
        {
            var engine = new SimpleEventHandlerEngine(onActivated, onDestroyed, type, name);
            EventManager.AddEventHandler(engine);
            return engine;
        }

        /// <summary>
        /// Factory method which automatically adds the SimpleEventEmitterEngine to the Manager
        /// </summary>
        /// <param name="name">The name of the engine</param>
        /// <param name="type">The type of event to emit</param>
        /// <param name="isRemovable">Will removing this engine not break your code?</param>
        /// <returns>The created object</returns>
        public static SimpleEventEmitterEngine CreateAddSimpleEmitter(string name, int type, bool isRemovable = true)
        {
            var engine = new SimpleEventEmitterEngine(type, name, isRemovable);
            EventManager.AddEventEmitter(engine);
            return engine;
        }
    }
}