using Cysharp.Threading.Tasks;
using UnityEngine;
namespace PhxhSDK.AOT.VersionUpdate
{
    public class VersionUpdateHandle
    {

        private readonly IVersionUpdate _updateImpl;
        private readonly IVersionUpdateUI _updateUI;

        public VersionUpdateHandle(IVersionUpdateUI ui)
        {
            #if USE_YOO
            _updateImpl = new VersionUpdate_YooAsset(ui);
            #else
            _updateImpl = new VersionUpdate_Addressables(ui);
            #endif
            
            _updateUI = ui;
        }

        public async UniTask<bool> CheckUpdate()
        {
            Debug.Log("开始检查版本更新");
            var checkResult = await _CheckVersion();
            switch (checkResult)
            {
                case EVersionUpdateType.NoUpdate:
                    Debug.Log("无需更新");
                    return true;
                case EVersionUpdateType.ResUpdate:
                    Debug.Log("资源更新");
                    await _UpdateRes();
                    return true;
                default:
                    _updateUI.UpdateProgressText("Start Failed!");
                    Debug.LogError("暂未实现的更新类型: " + checkResult);
                    return false;
            }
        }

        private async UniTask<EVersionUpdateType> _CheckVersion()
        {
            return await _updateImpl.CheckVersion();
        }
        
        private async UniTask<bool> _UpdateRes()
        {
            var versionInfo = _updateImpl.GetVersionInfo();
            var totalBytes = versionInfo.totalBytes;
            var totalMb = totalBytes / 1024f / 1024f;
            var totalMbStr = totalMb.ToString("F2");
            var showStr = $"Find New Version: {versionInfo.newVersion}\n" +
                            $"Current Version: {versionInfo.oldVersion}\n" +
                            $"Need Download Size: {totalMbStr}MB\n" +
                            $"Continue?";
            var result = await _updateUI.ShowDialog("Need Update", showStr);
            if (!result)
            {
                return false;
            }
            return await _updateImpl.UpdateRes();
        }
        
    }
}