using System.Collections.Generic;
using Cysharp.Threading.Tasks;
using BrewMonster.Network;
using BrewMonster.Scripts;
using BrewMonster.Scripts.Skills;

namespace BrewMonster
{
	public class A3DSkillGfxComposerMan
	{
		private readonly Dictionary<int, A3DSkillGfxComposer> m_ComposerMap = new Dictionary<int, A3DSkillGfxComposer>();

		/// <summary>
		/// DEPRECATED: This method blocks the main thread. Use LoadOneComposerAsync instead.
		/// </summary>
		public bool LoadOneComposer(int nSkillID, SkillStub skillStub, string flyGFXPath, string hitGrdGFXPath, string hitGFXPath)
		{
			if (m_ComposerMap.ContainsKey(nSkillID))
				return false;

			var composer = new A3DSkillGfxComposer();
			// WARNING: .Result blocks the main thread - this can cause freezing!
			if (composer.Load(skillStub, flyGFXPath, hitGrdGFXPath, hitGFXPath).Status != UniTaskStatus.Succeeded)
			{
				// failed to load
				return false;
			}

			// In original C++: composer->Init(g_pGame->GetGameRun()->GetWorld()->GetSkillGfxMan()->GetPtr());
			// Not wired in Unity yet; keep placeholder init to allow future hookup.
			composer.Init(A3DSkillGfxMan.Instance);

			m_ComposerMap[nSkillID] = composer;
			return true;
		}

		/// <summary>
		/// Async version of LoadOneComposer that doesn't block the main thread.
		/// </summary>
		public async UniTask<bool> LoadOneComposerAsync(int nSkillID, SkillStub skillStub, string flyGFXPath, string hitGrdGFXPath, string hitGFXPath)
		{
			if (m_ComposerMap.ContainsKey(nSkillID))
				return false;

			var composer = new A3DSkillGfxComposer();
			// Properly await the async Load operation
			if (!await composer.Load(skillStub, flyGFXPath, hitGrdGFXPath, hitGFXPath))
			{
				// failed to load
				return false;
			}

			// Load SkillStub GFX parameters (MoveMode, FlyTime, TargetMode, clusters, etc.)
			// 从SkillStub加载GFX参数（移动模式、飞行时间、目标模式、群集等）
			SkillStub stub = SkillStub.GetStub((uint)nSkillID);
			if (stub != null)
			{
				composer.LoadFromSkillStub(stub);
			}

			// In original C++: composer->Init(g_pGame->GetGameRun()->GetWorld()->GetSkillGfxMan()->GetPtr());
			composer.Init(A3DSkillGfxMan.Instance);

			m_ComposerMap[nSkillID] = composer;
			return true;
		}

		public void Release()
		{
			// If A3DSkillGfxComposer needs disposal later, do it here
			m_ComposerMap.Clear();
		}

	public void Play(
		int nSkillID,
		int nHostID,
		int nCastTargetID,
		List<TARGET_DATA> Targets,
		bool bIsGoblinSkill = false)
	{
		
		if (!m_ComposerMap.TryGetValue(nSkillID, out var composer) || composer == null)
		{
			BMLogger.LogError($"[SKILL_GFX_DEBUG] ComposerMan.Play: Composer NOT FOUND for skill {nSkillID} (map has {m_ComposerMap.Count} composers)");
			return;
		}


		// Forward to composer (stubbed for now if Play not implemented)
		try
		{
			// Provide a minimal default fly time estimation behavior when composer has no fly time configured
			// Real effect triggering should be implemented inside composer.Play
                composer.Play(nHostID, nCastTargetID, Targets, bIsGoblinSkill);
		}
		catch (System.MissingMethodException)
		{
			BMLogger.LogWarning("A3DSkillGfxComposer.Play is not implemented yet.");
		}
		catch (System.Exception ex)
		{
			BMLogger.LogError($"[SKILL_GFX_DEBUG] ComposerMan.Play: Exception in composer.Play() - {ex.Message}");
		}
	}

		public A3DSkillGfxComposer GetSkillGfxComposer(int skill)
		{
			return m_ComposerMap.TryGetValue(skill, out var composer) ? composer : null;
		}
	}
}