using System;
using AlicizaX.Audio.Runtime;
using AlicizaX.Editor;
using UnityEditor;
using UnityEngine;

namespace AlicizaX.Audio.Editor
{
    [CustomEditor(typeof(AudioComponent))]
    internal sealed class AudioComponentInspector : GameFrameworkInspector
    {
        private readonly AudioServiceDebugInfo _serviceInfo = new AudioServiceDebugInfo();
        private readonly AudioCategoryDebugInfo _categoryInfo = new AudioCategoryDebugInfo();
        private readonly AudioAgentDebugInfo _agentInfo = new AudioAgentDebugInfo();
        private readonly AudioClipCacheDebugInfo _clipCacheInfo = new AudioClipCacheDebugInfo();
        private SerializedProperty m_InstanceRoot = null;
        private SerializedProperty m_AudioListener = null;
        private SerializedProperty m_AudioMixer = null;
        private SerializedProperty m_AudioGroupConfigs = null;
        private static readonly GUIContent GroupConfigLabel = new GUIContent("音频分组配置");
        private static readonly GUIContent CreateButtonLabel = new GUIContent("创建默认配置资源");
        private static readonly GUIContent AudioListenerLabel = new GUIContent("音频监听器");

        public override void OnInspectorGUI()
        {
            base.OnInspectorGUI();

            serializedObject.Update();

            AudioComponent t = (AudioComponent)target;

            EditorGUI.BeginDisabledGroup(EditorApplication.isPlayingOrWillChangePlaymode);
            {
                EditorGUILayout.PropertyField(m_InstanceRoot);
                EditorGUILayout.PropertyField(m_AudioListener, AudioListenerLabel);
                EditorGUILayout.PropertyField(m_AudioMixer);
                EditorGUILayout.PropertyField(m_AudioGroupConfigs, GroupConfigLabel);
                if (m_AudioGroupConfigs.objectReferenceValue == null && GUILayout.Button(CreateButtonLabel))
                {
                    CreateDefaultConfigAsset();
                }
            }
            EditorGUI.EndDisabledGroup();

            serializedObject.ApplyModifiedProperties();

            DrawRuntimeDebugInfo(t);

            Repaint();
        }

        private void OnEnable()
        {
            m_InstanceRoot = serializedObject.FindProperty("m_InstanceRoot");
            m_AudioListener = serializedObject.FindProperty("m_AudioListener");
            m_AudioMixer = serializedObject.FindProperty("m_AudioMixer");
            m_AudioGroupConfigs = serializedObject.FindProperty("m_AudioGroupConfigs");
        }

        private void CreateDefaultConfigAsset()
        {
            AudioGroupConfigCollection asset = ScriptableObject.CreateInstance<AudioGroupConfigCollection>();
            asset.EnsureDefaults();

            string path = EditorUtility.SaveFilePanelInProject("创建音频分组配置", "AudioGroupConfigs", "asset", "请选择保存路径");
            if (string.IsNullOrEmpty(path))
            {
                UnityEngine.Object.DestroyImmediate(asset);
                return;
            }

            AssetDatabase.CreateAsset(asset, path);
            AssetDatabase.SaveAssets();
            AssetDatabase.Refresh();
            m_AudioGroupConfigs.objectReferenceValue = asset;
            serializedObject.ApplyModifiedProperties();
            EditorGUIUtility.PingObject(asset);
        }

        private void DrawRuntimeDebugInfo(AudioComponent component)
        {
            if (!EditorApplication.isPlaying)
            {
                return;
            }

            if (!AppServices.TryGet<IAudioService>(out IAudioService audioService) || audioService is not IAudioDebugService debugService)
            {
                EditorGUILayout.HelpBox("音频服务未初始化。", MessageType.Info);
                return;
            }

            debugService.FillServiceDebugInfo(_serviceInfo);
            EditorGUILayout.Space();
            EditorGUILayout.LabelField("运行时调试", EditorStyles.boldLabel);
            EditorGUILayout.LabelField("Initialized", _serviceInfo.Initialized.ToString());
            EditorGUILayout.LabelField("Unity Audio Disabled", _serviceInfo.UnityAudioDisabled.ToString());
            EditorGUILayout.LabelField("Enable", _serviceInfo.Enable.ToString());
            EditorGUILayout.LabelField("Volume", _serviceInfo.Volume.ToString("F3"));
            EditorGUILayout.ObjectField("Listener", _serviceInfo.Listener, typeof(AudioListener), true);
            EditorGUILayout.ObjectField("Instance Root", _serviceInfo.InstanceRoot, typeof(Transform), true);
            EditorGUILayout.LabelField("Active Agents", _serviceInfo.ActiveAgentCount.ToString());
            EditorGUILayout.LabelField("Handle Capacity", _serviceInfo.HandleCapacity.ToString());
            EditorGUILayout.LabelField("Clip Cache", _serviceInfo.ClipCacheCount + " / " + _serviceInfo.ClipCacheCapacity);

            DrawCategoryDebugInfo(debugService);
            DrawAgentDebugInfo(debugService);
            DrawClipCacheDebugInfo(debugService);
        }

        private void DrawCategoryDebugInfo(IAudioDebugService debugService)
        {
            EditorGUILayout.Space();
            EditorGUILayout.LabelField("分类状态", EditorStyles.boldLabel);
            for (int i = 0; i < debugService.CategoryCount; i++)
            {
                if (!debugService.FillCategoryDebugInfo(i, _categoryInfo))
                {
                    continue;
                }

                EditorGUILayout.LabelField(
                    _categoryInfo.Type.ToString(),
                    "Enabled " + _categoryInfo.Enabled
                    + " | Volume " + _categoryInfo.Volume.ToString("F2")
                    + " | Active " + _categoryInfo.ActiveCount
                    + " | Free " + _categoryInfo.FreeCount
                    + " | Capacity " + _categoryInfo.Capacity);
            }
        }

        private void DrawAgentDebugInfo(IAudioDebugService debugService)
        {
            EditorGUILayout.Space();
            EditorGUILayout.LabelField("活跃播放", EditorStyles.boldLabel);
            bool hasActive = false;
            for (int typeIndex = 0; typeIndex < debugService.CategoryCount; typeIndex++)
            {
                if (!debugService.FillCategoryDebugInfo(typeIndex, _categoryInfo))
                {
                    continue;
                }

                for (int agentIndex = 0; agentIndex < _categoryInfo.Capacity; agentIndex++)
                {
                    if (!debugService.FillAgentDebugInfo(typeIndex, agentIndex, _agentInfo) || _agentInfo.State == AudioAgentRuntimeState.Free)
                    {
                        continue;
                    }

                    hasActive = true;
                    string clipName = _agentInfo.Clip != null ? _agentInfo.Clip.name : "<None>";
                    string address = string.IsNullOrEmpty(_agentInfo.Address) ? "<Direct Clip>" : _agentInfo.Address;
                    EditorGUILayout.LabelField(
                        _agentInfo.Type + "[" + _agentInfo.Index + "]",
                        _agentInfo.State
                        + " | Handle " + _agentInfo.Handle
                        + " | Clip " + clipName
                        + " | Address " + address
                        + " | Vol " + _agentInfo.Volume.ToString("F2")
                        + " | 3D " + _agentInfo.Spatial);
                }
            }

            if (!hasActive)
            {
                EditorGUILayout.LabelField("无活跃播放。");
            }
        }

        private void DrawClipCacheDebugInfo(IAudioDebugService debugService)
        {
            EditorGUILayout.Space();
            EditorGUILayout.LabelField("Clip 缓存", EditorStyles.boldLabel);
            AudioClipCacheEntry entry = debugService.FirstClipCacheEntry;
            if (entry == null)
            {
                EditorGUILayout.LabelField("缓存为空。");
                return;
            }

            while (entry != null)
            {
                AudioClipCacheEntry next = entry.AllNext;
                if (debugService.FillClipCacheDebugInfo(entry, _clipCacheInfo))
                {
                    EditorGUILayout.LabelField(
                        _clipCacheInfo.Address,
                        "Ref " + _clipCacheInfo.RefCount
                        + " | Pending " + _clipCacheInfo.PendingCount
                        + " | Loaded " + _clipCacheInfo.IsLoaded
                        + " | Loading " + _clipCacheInfo.Loading
                        + " | Pinned " + _clipCacheInfo.Pinned
                        + " | LRU " + _clipCacheInfo.InLru);
                }

                entry = next;
            }
        }
    }
}