using System;
using System.Collections.Generic;
using System.Text;
using UnityEngine.SceneManagement;

namespace IllusionPlugin
{
    /// <summary>
    /// Interface for generic Illusion unity plugins. Every class that implements this will be loaded if the DLL is placed at
    /// data/Managed/Plugins.
    /// </summary>
    public interface IPlugin
    {

        /// <summary>
        /// Gets the name of the plugin.
        /// </summary>
        string Name { get; }

        /// <summary>
        /// Gets the version of the plugin.
        /// </summary>
        string Version { get; }

        /// <summary>
        /// Gets invoked when the application is started.
        /// </summary>
        void OnApplicationStart();

        /// <summary>
        /// Gets invoked when the application is closed.
        /// </summary>
        void OnApplicationQuit();

        /// <summary>
        /// Gets invoked whenever a scene is loaded.
        /// </summary>
        /// <param name="scene">The scene currently loaded</param>
        /// <param name="sceneMode">The type of loading</param>
        void OnSceneLoaded(Scene scene, LoadSceneMode sceneMode);

        /// <summary>
        /// Gets invoked whenever a scene is unloaded
        /// </summary>
        /// <param name="scene">The unloaded scene</param>
        void OnSceneUnloaded(Scene scene);

        /// <summary>
        /// Gets invoked whenever a scene is changed
        /// </summary>
        /// <param name="prevScene">The Scene that was previously loaded</param>
        /// <param name="nextScene">The Scene being loaded</param>
        void OnActiveSceneChanged(Scene prevScene, Scene nextScene);

        /// <summary>
        /// Gets invoked on every graphic update.
        /// </summary>
        void OnUpdate();


        /// <summary>
        /// Gets invoked on ever physics update.
        /// </summary>
        void OnFixedUpdate();
        
        [Obsolete("Use OnSceneLoaded instead")]
        void OnLevelWasLoaded(int level);
        [Obsolete("Use OnSceneLoaded instead")]
        void OnLevelWasInitialized(int level);
    }
}