//
//  mixDownloadCacheManager.m
//  双子星云手机
//
//  Created by xd h on 2024/6/27.
//

#import "mixDownloadCacheManager.h"
#import "mixDownloadManager.h"

static NSMutableDictionary *_downloadList;

static dispatch_semaphore_t _semaphore;

@implementation mixDownloadCacheManager

+ (void)initialize {
    _semaphore = dispatch_semaphore_create(1);
}

#pragma mark-plist
+ (NSString *)getNewPlistPath {
    
    NSString *account = KMixDownloadUID;
    if (account.length != 0) {
        NSString *fileFolder = [HWDataManager documentPathForAccount:account fileFolder:KMixDownloadDirector];
        HLog(@"下载账号：%@", fileFolder);
        return [fileFolder stringByAppendingPathComponent:@"downloadInfo.plist"];;
    }else {
        HLog(@" 创建下载plist文件失败！");
        return @"";
    }
}

+ (NSMutableDictionary *)getDownloadList {
    
    if (!_downloadList) { // 内存没有
        _downloadList = [[NSDictionary dictionaryWithContentsOfFile:[self getNewPlistPath]] mutableCopy]; // 本地加载
        if (!_downloadList) { // 本地没有，分配内存
            _downloadList = [NSMutableDictionary dictionary];
        }
    }
    return _downloadList;
}

+ (NSString *)getFullDirector {

    NSString *account = KMixDownloadUID;
    if (account.length != 0)
    {
         NSString *fileFolder = [HWDataManager documentPathForAccount:account fileFolder:KMixDownloadDirector];
         return fileFolder;
     }else {
         HLog(@"创建下载plist文件失败！");
         return @"";
     }
}

/** 查询文件信息 */
+ (NSMutableDictionary *)queryFileInfoWithUrl:(NSString *)url
{
    // 本地查找
    NSString *key = [[url lastPathComponent] stringByDeletingPathExtension];
    NSMutableDictionary *dictM  = [[[self getDownloadList] objectForKey:key] mutableCopy];
    
    if (dictM) {
        NSString *path = [KFullDirector stringByAppendingString:dictM[@"fileName"]];
        [dictM setObject:path forKey:@"filePath"];
        HLog(@"路径：%@", path);
    }
    
    return dictM;
}

+ (NSInteger)totalSizeWith:(NSString *)url {
    //NSNumber *size = [self queryFileInfoWithUrl:url][totalSize];
    
    return [[self queryFileInfoWithUrl:url][@"totalSize"] integerValue];
}


/**  增加配置信息 */
+ (BOOL)saveFileInfoWithDict:(NSDictionary *)dict {
    
    // 多账号下载 判断是否需要缓存记录
    //HLog(@"增加配置信息:%@", dict);
    if ([[dict allKeys] containsObject:@"fullPath"]) {
        NSArray *fileArray = [[dict objectForKey:@"fullPath"] pathComponents];
        NSString *filePathAccount = @"0";
        if (fileArray.count > 3) {
            filePathAccount = fileArray[fileArray.count - 3];
        }

        NSString *account = KMixDownloadUID;
        if (account.length == 0) {
        }

        if (![filePathAccount isEqualToString:account]) {
            HLog(@"切换账号 文件缓存账号%@ 与 当前登录账号：%@ 不一致", filePathAccount, account);
            return NO;
        }
    }
    
    
    // 线程等待 (信号量 + 1)
    dispatch_semaphore_wait(_semaphore, DISPATCH_TIME_FOREVER);
    
    NSString *key = [[dict[@"url"] lastPathComponent] stringByDeletingPathExtension];
    NSMutableDictionary *dictM =  [self getDownloadList];
    [dictM setObject:dict forKey:key];
    BOOL flag = [dictM writeToFile:[self getNewPlistPath] atomically:YES];
    
    // 线程结束 （信号量 - 1）
    dispatch_semaphore_signal(_semaphore);
    
    return flag;
    
}

/**  删除配置信息 */
+ (BOOL)deleteFileWithUrl:(NSString *)url {
    // 线程等待 分配信号量 (信号量 + 1)
    dispatch_semaphore_wait(_semaphore, DISPATCH_TIME_FOREVER);
    
    // 删除缓存的文件
    NSString *fileFolder = [mixDownloadCacheManager getFullDirector];
    NSString *urlFileName = [url lastPathComponent];
    NSString * decodeUrlFileName= [urlFileName stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
    NSString *fileName = decodeUrlFileName;
    NSString *fileURL = [fileFolder stringByAppendingPathComponent:fileName];

    
    BOOL flag = [[NSFileManager defaultManager] removeItemAtPath:fileURL error:nil];
//    BOOL flag = [[NSFileManager defaultManager] removeItemAtPath:dict[@"fullPath"] error:nil];
    
    // 删除plist的文件文件记录
    NSString *key = [[url lastPathComponent] stringByDeletingPathExtension];
//    NSDictionary *dict = SGDownloadList[key];
    [[self getDownloadList] removeObjectForKey:key];
    BOOL writeFlag = [[self getDownloadList] writeToFile:[self getNewPlistPath] atomically:YES];
    
    // 线程结束 释放信号量（信号量 - 1）
    dispatch_semaphore_signal(_semaphore);
    return (flag && writeFlag);
}

#pragma mark -

+ (BOOL)clearDisks {
    // 1.删除所有的文件下载信息关联表
    // 2.删除cache 下的download文件夹
   return  [[NSFileManager defaultManager] removeItemAtPath:KFullDirector error:nil];
      
}

/**  取消所有当前下载的文件 清理内存缓存的数据 */
+ (BOOL)clearMemory {
    // 删除信息关联
    _downloadList = nil;
    
    return YES;
}

/**  取消所有当前下载的文件 删除磁盘所有的下载 清理内存缓存的数据 */
+ (BOOL)clearMemoryAndDisk {
    return ([self clearMemory] && [self clearDisks]);
}

@end