using System;
using Cysharp.Threading.Tasks;

namespace BITKit.Apps
{
	/// <summary>
	/// 应用程序服务,用于检查版本,下载最新版本
	/// </summary>
	public interface IApplicationService
	{
		/// <summary>
		/// 当前版本检查
		/// </summary>
		event Action<string> OnClientVersionCheck;

		/// <summary>
		/// 最新版本检查
		/// </summary>
		event Action<string> OnLatestVersionCheck;

		/// <summary>
		/// 当开始下载最新版本时,回调为下载Url
		/// </summary>
		event Action<string> OnDownloadLatest;

		/// <summary>
		/// 下载进度的更新回调
		/// </summary>
		event Action<float> OnDownloadProgress;

		/// <summary>
		/// 当下载完成时,回调为下载文件的路径
		/// </summary>
		event Action<string> OnDownloadComplete;

		event Action OnDetectedLatestVersion;

		/// <summary>
		/// 下载最新版本
		/// </summary>
		/// <returns>文件路径</returns>
		UniTask<string> DownloadLatestVersionAsync();

		/// <summary>
		/// 下载最新版的Url
		/// </summary>
		string DownloadLatestUrl { get; }

		/// <summary>
		/// 检查最新版的Url
		/// </summary>
		string CheckLatestVersionUrl { get; }
	}
}