using System.Collections;
using System.Collections.Generic;
using System.IO;
using BITKit;
using BITKit.Mod;
using BITKit.UX;
using Cysharp.Threading.Tasks;
using Net.Project.B.World;
using UnityEngine.Networking;
using UnityEngine.UIElements;

namespace Net.Project.B.UX
{
    public class UXSnapshots : UIToolKitPanel, IUXSnapshot
    {
        private readonly IUXSnapshotWindow _snapshotWindow;
        private readonly ISnapshotService _snapshotService;
        protected override string DocumentPath => "ui_snapshots";
        public override bool AllowCursor => true;
        public override bool CloseWhenClickOutside => true;

        [UXBindPath("snapshots-container")] 
        private VisualElement _snapshotsContainer;

        private VisualTreeAsset _snapshotTemplate;

        public UXSnapshots(IUXService uxService, ISnapshotService snapshotService, IUXSnapshotWindow snapshotWindow) : base(uxService)
        {
            _snapshotService = snapshotService;
            _snapshotWindow = snapshotWindow;
            OnInitiatedAsync += InitiatedAsync;
        }

        private async UniTask InitiatedAsync()
        {
            _snapshotTemplate =await ModService.LoadAsset<VisualTreeAsset>("ui_snapshots-template");
        }

        public override async UniTask EntryAsync()
        {
            await base.EntryAsync();
            _snapshotsContainer.Clear();

            foreach (var scopeData in await _snapshotService.GetSnapshots())
            {
                if(File.Exists(scopeData.FileName) is false)continue;
                
                var visualElement = _snapshotsContainer.Create(_snapshotTemplate);

                using var handle = UnityWebRequestTexture.GetTexture($"file://" + scopeData.FileName);
                await handle.SendWebRequest();
                
                var texture = DownloadHandlerTexture.GetContent(handle);

                await UniTask.SwitchToMainThread();

                var button = visualElement.Get<Button>();
                button.style.backgroundImage = new(texture);

                visualElement.Get<Label>().text = scopeData.Name;
                visualElement.Get<Label>(1).text = scopeData.Description;

                button.clicked += () =>
                {
                    _snapshotWindow.Open(scopeData);
                };
                
                button.RegisterCallback<MouseDownEvent>(evt =>
                {
                    if(evt.button is not 1)return;
                    
                    ContextMenuBuilder.Create()
                        .BuildText("操作")
                        .BuildAction("打开所在文件夹",()=>{BITApp.Open(Path.GetDirectoryName(scopeData.FileName));})
                        .BuildAction("删除",()=>{File.Delete(scopeData.FileName);visualElement.RemoveFromHierarchy();})
                        .Build();
                });
            }
        }
    }

}