using System;
using CLre.API.Engines;
using Svelto.Context;
using Svelto.ECS;

namespace CLre.API.App
{
    class GameReadyEngine : GameObsoleteEnginePostBuild, IWaitForFrameworkInitialization
    {
        internal static event EventHandler<GameReady> gameEngineReady;
        
        public override void Ready()
        {
            if (gameEngineReady != null) gameEngineReady(this, new GameReady { });
        }

        public override IEntitiesDB entitiesDB { get; set; }
        public override IEntityFactory entityFactory { get; set; }
        
        public void OnFrameworkInitialized()
        {
            // TODO framework init event
        }
    }
    
    class GameFrameworkEngine : GameObsoleteEnginePostBuild, IWaitForFrameworkInitialization, IWaitForFrameworkDestruction
    {
        internal static event EventHandler<GameReady> gameFrameworkReady;
        
        internal static event EventHandler<GameExit> gameFrameworkExit;
        
        public override void Ready()
        {
        }

        public override IEntitiesDB entitiesDB { get; set; }
        public override IEntityFactory entityFactory { get; set; }
        
        public void OnFrameworkInitialized()
        {
            if (gameFrameworkReady != null) gameFrameworkReady(this, new GameReady { });
        }

        public void OnFrameworkDestroyed()
        {
            if (gameFrameworkExit != null) gameFrameworkExit(this, new GameExit { });
        }
    }
    
    class MenuReadyEngine : FrontEndObsoleteEnginePostBuild
    {
        internal static event EventHandler<MenuReady> menuEngineReady;
        
        public override void Ready()
        {
            if (menuEngineReady != null) menuEngineReady(this, new MenuReady { });
        }

        public override IEntitiesDB entitiesDB { get; set; }
        public override IEntityFactory entityFactory { get; set; }
    }
}