using System;
using System.Threading;
using AlicizaX.Runtime;
using Cysharp.Threading.Tasks;
using UnityEngine;
using UnityEngine.SceneManagement;
using YooAsset;

namespace AlicizaX.Resource.Runtime
{
    /// <summary>
    /// 资源管理器接口。
    /// </summary>
    public interface IResourceManager : IModule, IModuleUpdate
    {
        /// <summary>
        /// 获取或设置运行模式。
        /// </summary>
        EPlayMode PlayMode { get; set; }

        /// <summary>
        /// 缓存系统启动时的验证级别。
        /// </summary>
        EFileVerifyLevel VerifyLevel { get; set; }

        /// <summary>
        /// 初始化接口。
        /// </summary>
        void Initialize();

        /// <summary>
        /// 初始化操作。
        /// </summary>
        /// <param name="packageName">资源包名称。</param>
        UniTask<bool> InitPackageAsync(string packageName, string hostServerURL, string fallbackHostServerURL, bool isDefaultPackage = false);

        /// <summary>
        /// 默认资源包名称。
        /// </summary>
        string DefaultPackageName { get; set; }

        /// <summary>
        /// 获取或设置异步系统参数，每帧执行消耗的最大时间切片（单位：毫秒）。
        /// </summary>
        long Milliseconds { get; set; }

        Transform InstanceRoot { get; set; }


        /// <summary>
        /// 获取或设置资源对象池自动释放可释放对象的间隔秒数。
        /// </summary>
        float AssetAutoReleaseInterval { get; set; }

        /// <summary>
        /// 获取或设置资源对象池的容量。
        /// </summary>
        int AssetCapacity { get; set; }

        /// <summary>
        /// 获取或设置资源对象池对象过期秒数。
        /// </summary>
        float AssetExpireTime { get; set; }

        /// <summary>
        /// 获取或设置资源对象池的优先级。
        /// </summary>
        int AssetPriority { get; set; }

        /// <summary>
        /// 卸载资源。
        /// </summary>
        /// <param name="asset">要卸载的资源。</param>
        void UnloadAsset(object asset);

        /// <summary>
        /// 资源回收（卸载引用计数为零的资源）
        /// </summary>
        void UnloadUnusedAssets(bool performGCCollect);

        void ForceUnloadUnusedAssets(bool performGCCollect);

        /// <summary>
        /// 强制回收所有资源
        /// </summary>
        void ForceUnloadAllAssets();

        /// <summary>
        /// 检查资源是否存在。
        /// </summary>
        /// <param name="location">资源定位地址。</param>
        /// <param name="packageName">资源包名称。</param>
        /// <returns>检查资源是否存在的结果。</returns>
        public HasAssetResult HasAsset(string location, string packageName = "");

        /// <summary>
        /// 检查资源定位地址是否有效。
        /// </summary>
        /// <param name="location">资源的定位地址</param>
        /// <param name="packageName">指定资源包的名称。不传使用默认资源包</param>
        bool CheckLocationValid(string location, string packageName = "");

        /// <summary>
        /// 获取资源信息列表。
        /// </summary>
        /// <param name="resTag">资源标签。</param>
        /// <param name="packageName">指定资源包的名称。不传使用默认资源包</param>
        /// <returns>资源信息列表。</returns>
        AssetInfo[] GetAssetInfos(string resTag, string packageName = "");

        /// <summary>
        /// 获取资源信息列表。
        /// </summary>
        /// <param name="tags">资源标签列表。</param>
        /// <param name="packageName">指定资源包的名称。不传使用默认资源包</param>
        /// <returns>资源信息列表。</returns>
        AssetInfo[] GetAssetInfos(string[] tags, string packageName = "");

        /// <summary>
        /// 获取资源信息。
        /// </summary>
        /// <param name="location">资源的定位地址。</param>
        /// <param name="packageName">指定资源包的名称。不传使用默认资源包</param>
        /// <returns>资源信息。</returns>
        AssetInfo GetAssetInfo(string location, string packageName = "");

        /// <summary>
        /// 异步加载资源。
        /// </summary>
        /// <param name="location">资源的定位地址。</param>
        /// <param name="priority">加载资源的优先级。</param>
        /// <param name="loadAssetCallbacks">加载资源回调函数集。</param>
        /// <param name="userData">用户自定义数据。</param>
        /// <param name="packageName">指定资源包的名称。不传使用默认资源包。</param>
        void LoadAssetAsync(string location, int priority, LoadAssetCallbacks loadAssetCallbacks, object userData, string packageName = "");

        /// <summary>
        /// 异步加载资源。
        /// </summary>
        /// <param name="location">资源的定位地址。</param>
        /// <param name="assetType">要加载的资源类型。</param>
        /// <param name="priority">加载资源的优先级。</param>
        /// <param name="loadAssetCallbacks">加载资源回调函数集。</param>
        /// <param name="userData">用户自定义数据。</param>
        /// <param name="packageName">指定资源包的名称。不传使用默认资源包。</param>
        void LoadAssetAsync(string location, Type assetType, int priority, LoadAssetCallbacks loadAssetCallbacks, object userData, string packageName = "");

        /// <summary>
        /// 同步加载资源。
        /// </summary>
        /// <param name="location">资源的定位地址。</param>
        /// <param name="packageName">指定资源包的名称。不传使用默认资源包</param>
        /// <typeparam name="T">要加载资源的类型。</typeparam>
        /// <returns>资源实例。</returns>
        T LoadAsset<T>(string location, string packageName = "") where T : UnityEngine.Object;

        /// <summary>
        /// 同步加载游戏物体并实例化。
        /// </summary>
        /// <param name="location">资源的定位地址。</param>
        /// <param name="parent">资源实例父节点。</param>
        /// <param name="packageName">指定资源包的名称。不传使用默认资源包</param>
        /// <returns>资源实例。</returns>
        /// <remarks>会实例化资源到场景，无需主动UnloadAsset，Destroy时自动UnloadAsset。</remarks>
        GameObject LoadGameObject(string location, Transform parent = null, string packageName = "");

        /// <summary>
        /// 异步加载资源。
        /// </summary>
        /// <param name="location">资源的定位地址。</param>
        /// <param name="callback">回调函数。</param>
        /// <param name="packageName">指定资源包的名称。不传使用默认资源包</param>
        /// <typeparam name="T">要加载资源的类型。</typeparam>
        UniTaskVoid LoadAsset<T>(string location, Action<T> callback, string packageName = "") where T : UnityEngine.Object;

        /// <summary>
        /// 同步加载子资源对象。
        /// </summary>
        /// <typeparam name="TObject">资源类型。</typeparam>
        /// <param name="location">资源的定位地址。</param>
        /// <param name="packageName">指定资源包的名称。不传使用默认资源包</param>
        public TObject[] LoadSubAssetsSync<TObject>(string location, string packageName = "") where TObject : UnityEngine.Object;

        /// <summary>
        /// 异步加载子资源对象。
        /// </summary>
        /// <typeparam name="TObject">资源类型。</typeparam>
        /// <param name="location">资源的定位地址。</param>
        /// <param name="packageName">指定资源包的名称。不传使用默认资源包</param>
        public UniTask<TObject[]> LoadSubAssetsAsync<TObject>(string location, string packageName = "") where TObject : UnityEngine.Object;

        /// <summary>
        /// 异步加载资源。
        /// </summary>
        /// <param name="location">资源定位地址。</param>
        /// <param name="cancellationToken">取消操作Token。</param>
        /// <param name="packageName">指定资源包的名称。不传使用默认资源包</param>
        /// <typeparam name="T">要加载资源的类型。</typeparam>
        /// <returns>异步资源实例。</returns>
        UniTask<T> LoadAssetAsync<T>(string location, CancellationToken cancellationToken = default, string packageName = "") where T : UnityEngine.Object;

        /// <summary>
        /// 异步加载游戏物体并实例化。
        /// </summary>
        /// <param name="location">资源定位地址。</param>
        /// <param name="parent">资源实例父节点。</param>
        /// <param name="cancellationToken">取消操作Token。</param>
        /// <param name="packageName">指定资源包的名称。不传使用默认资源包</param>
        /// <returns>异步游戏物体实例。</returns>
        /// <remarks>会实例化资源到场景，无需主动UnloadAsset，Destroy时自动UnloadAsset。</remarks>
        UniTask<GameObject> LoadGameObjectAsync(string location, Transform parent = null, CancellationToken cancellationToken = default, string packageName = "");

        AssetHandle LoadAssetGetOperation<T>(string location, string packageName = "") where T : UnityEngine.Object;

        AssetHandle LoadAssetAsyncHandle<T>(string location, string packageName = "") where T : UnityEngine.Object;

        #region 加载场景

        /// <summary>
        /// 异步加载场景
        /// </summary>
        /// <param name="path">资源路径</param>
        /// <param name="sceneMode">场景模式</param>
        /// <param name="activateOnLoad">是否加载完成自动激活</param>
        /// <returns></returns>
        UniTask<SceneHandle> LoadSceneAsync(string path, LoadSceneMode sceneMode, bool activateOnLoad = true);

        /// <summary>
        /// 异步加载场景
        /// </summary>
        /// <param name="assetInfo">资源路径</param>
        /// <param name="sceneMode">场景模式</param>
        /// <param name="activateOnLoad">是否加载完成自动激活</param>
        /// <returns></returns>
        UniTask<SceneHandle> LoadSceneAsync(AssetInfo assetInfo, LoadSceneMode sceneMode, bool activateOnLoad = true);

        #endregion
    }
}