namespace AtlasUtility
{
    using UnityEditor;
    using UnityEngine;

    using System;
    using System.Collections;
    using System.Collections.Generic;

    public class PlatformReferenceSet
    {
        #region Variable

        public bool Valid
        {
            get { return MobileReference.GUID != "None" || DesktopReference.GUID != "None"; }
        }
        public string Content
        {
            get { return $"{EditorReference.GUID}|{MobileReference.GUID}|{DesktopReference.GUID}"; }
        }

        public Texture2D MobileTexture
        {
            get { return AssetDatabase.LoadAssetAtPath<Texture2D>(MobileReference.Path); }
        }
        public Texture2D DesktopTexture
        {
            get { return AssetDatabase.LoadAssetAtPath<Texture2D>(DesktopReference.Path); }
        }
        public Texture2D EditorTexture
        {
            get { return AssetDatabase.LoadAssetAtPath<Texture2D>(EditorReference.Path); }
        }

        public PlatformReference MobileReference;
        public PlatformReference DesktopReference;
        public PlatformReference EditorReference;

        #endregion

        public PlatformReferenceSet(string content)
        {
            MobileReference = new PlatformReference(content.Split('|')[1]);
            DesktopReference = new PlatformReference(content.Split('|')[2]);
            EditorReference = new PlatformReference(content.Split('|')[0]);
        }

        public PlatformReferenceSet(Texture2D editorTexture, string guid, ScalePlatform platform)
        {
            MobileReference = new PlatformReference("None");
            DesktopReference = new PlatformReference("None");
            EditorReference = new PlatformReference(AssetDatabase.AssetPathToGUID(AssetDatabase.GetAssetPath(editorTexture)));

            SetPlatformReference(guid, platform);
        }


        public void SwitchPlatform(Platform toPlatform, List<string> fromList, List<string> toList)
        {
            if (toPlatform == Platform.Editor)
            {
                AssetBundleManager.SwitchAssetBundle(EditorReference.Path, MobileReference.Path, DesktopReference.Path, toPlatform);
                PackingTagManager.SwitchPackingTag(EditorReference.Path, MobileReference.Path, DesktopReference.Path, toPlatform);

                if (MobileReference.GUID != "None")
                {
                    fromList.Add(MobileReference.GUID);
                    toList.Add(EditorReference.GUID);
                }

                if (DesktopReference.GUID != "None")
                {
                    fromList.Add(DesktopReference.GUID);
                    toList.Add(EditorReference.GUID);
                }
            }
            else if (toPlatform == Platform.Mobile)
            {
                if (MobileReference.GUID == "None")
                {
                    Debug.LogWarning(EditorReference.Path + " 没有移动版本");
                }
                else
                {
                    AssetBundleManager.SwitchAssetBundle(EditorReference.Path, MobileReference.Path, DesktopReference.Path, toPlatform);
                    PackingTagManager.SwitchPackingTag(EditorReference.Path, MobileReference.Path, DesktopReference.Path, toPlatform);

                    if (EditorReference.GUID != "None")
                    {
                        fromList.Add(EditorReference.GUID);
                        toList.Add(MobileReference.GUID);
                    }

                    if (DesktopReference.GUID != "None")
                    {
                        fromList.Add(DesktopReference.GUID);
                        toList.Add(MobileReference.GUID);
                    }
                }
            }
            else if (toPlatform == Platform.Desktop)
            {
                if (DesktopReference.GUID == "None")
                {
                    Debug.LogWarning(EditorReference.Path + " 没有桌面版本");
                }
                else
                {
                    AssetBundleManager.SwitchAssetBundle(EditorReference.Path, MobileReference.Path, DesktopReference.Path, toPlatform);
                    PackingTagManager.SwitchPackingTag(EditorReference.Path, MobileReference.Path, DesktopReference.Path, toPlatform);

                    if (EditorReference.GUID != "None")
                    {
                        fromList.Add(EditorReference.GUID);
                        toList.Add(DesktopReference.GUID);
                    }

                    if (MobileReference.GUID != "None")
                    {
                        fromList.Add(MobileReference.GUID);
                        toList.Add(DesktopReference.GUID);
                    }
                }
            }
            else
            {
                throw new Exception();
            }
        }

        public void SetPlatformReference(string guid, ScalePlatform platform)
        {
            if (platform == ScalePlatform.Mobile)
            {
                if (MobileReference.GUID != "None" && MobileReference.GUID != guid)
                {
                    Debug.LogWarning("注意 已经有一个移动版本了");
                }

                MobileReference.GUID = guid;
            }
            else if (platform == ScalePlatform.Desktop)
            {
                if (DesktopReference.GUID != "None" && DesktopReference.GUID != guid)
                {
                    Debug.LogWarning("注意 已经有一个桌面版本了");
                }

                DesktopReference.GUID = guid;
            }
            else
            {
                throw new Exception("遇到了一个Bug");
            }
        }
    }
}