using System.Collections;
using System.Collections.Generic;
using Unity.Entities;
using UnityEngine;

public class SystemCollection
{
    List<ScriptBehaviourManager> systems = new List<ScriptBehaviourManager>();

    public void Add(ScriptBehaviourManager system)
    {
        systems.Add(system);
    }

    public void Update()
    {
        foreach (var system in systems)
            system.Update();
    }

    public void Shutdown(World world)
    {
        foreach (var system in systems)
            world.DestroyManager(system);
    }
}

public abstract class CharacterModuleShared 
{
    protected GameWorld m_world;
    
    protected SystemCollection m_ControlledEntityChangedSystems = new SystemCollection();
    
    protected SystemCollection m_HandleSpawnSystems = new SystemCollection();
    protected SystemCollection m_HandleDespawnSystems = new SystemCollection();
    
    protected SystemCollection m_MovementStartSystems = new SystemCollection();
    protected SystemCollection m_MovementResolveSystems = new SystemCollection();
    protected SystemCollection m_AbilityStartSystems = new SystemCollection();
    protected SystemCollection m_AbilityResolveSystems = new SystemCollection();

#if UNITY_EDITOR    
    readonly StoreStateHistory m_storeStateHistory;
#endif
    
    public CharacterModuleShared(GameWorld world)
    {
        m_world = world;
       
#if UNITY_EDITOR    
        m_storeStateHistory = m_world.GetECSWorld().CreateManager<StoreStateHistory>(m_world);
#endif        
    }

    public virtual void Shutdown()
    {
        m_ControlledEntityChangedSystems.Shutdown(m_world.GetECSWorld());
        m_HandleSpawnSystems.Shutdown(m_world.GetECSWorld());
        m_HandleDespawnSystems.Shutdown(m_world.GetECSWorld());
        m_MovementStartSystems.Shutdown(m_world.GetECSWorld());
        m_MovementResolveSystems.Shutdown(m_world.GetECSWorld());
        m_AbilityStartSystems.Shutdown(m_world.GetECSWorld());
        m_AbilityResolveSystems.Shutdown(m_world.GetECSWorld());
        
#if UNITY_EDITOR 
        m_world.GetECSWorld().DestroyManager(m_storeStateHistory);
#endif
    }
    
    public void HandleSpawns()
    {
        m_HandleSpawnSystems.Update();
    }
    
    public void HandleDepawns()
    {
        m_HandleSpawnSystems.Update();
    }
    
    public void HandleControlledEntityChanged()
    {
        m_ControlledEntityChangedSystems.Update();
    }
    
    public void MovementStart()
    {
        m_MovementStartSystems.Update();
    }
    
    public void MovementResolve()
    {
        m_MovementResolveSystems.Update();
    }
    
    public void AbilityStart()
    {
        m_AbilityStartSystems.Update();
    }
    
    public void AbilityResolve()
    {
        m_AbilityResolveSystems.Update();
        
        
#if UNITY_EDITOR         
        m_storeStateHistory.Update();
#endif        
    }
}