#define kStartImageName @"start_image_name"

#import "StartImagesManager.h"

#import "CodingNetAPIClient.h"

@interface StartImagesManager ()

@property (strong, nonatomic) NSMutableArray *imageLoadedArray;

@property (strong, nonatomic) StartImage *startImage;

@implementation StartImagesManager

+ (instancetype)shareManager{

static StartImagesManager *shared_manager = nil;

static dispatch_once_t pred;

dispatch_once(&pred, ^{

shared_manager = [[self alloc] init];

});

return shared_manager;

}

- (instancetype)init

{

self = [super init];

if (self) {

[self createFolder:[self downloadPath]];

[self loadStartImages];

}

return self;

}

- (BOOL)createFolder:(NSString *)path{

BOOL isDir = NO;

NSFileManager *fileManager = [NSFileManager defaultManager];

BOOL existed = [fileManager fileExistsAtPath:path isDirectory:&isDir];

BOOL isCreated = NO;

if (!(isDir == YES && existed == YES)){

isCreated = [fileManager createDirectoryAtPath:path withIntermediateDirectories:YES attributes:nil error:nil];

}else{

isCreated = YES;

}

if (isCreated) {

[NSURL addSkipBackupAttributeToItemAtURL:[NSURL fileURLWithPath:path isDirectory:YES]];

}

return isCreated;

}

- (NSString *)downloadPath{

NSString *documentPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject];

NSString *downloadPath = [documentPath stringByAppendingPathComponent:@"Coding_StartImages"];

return downloadPath;

}

- (StartImage *)randomImage{

if ([NSDate isDuringMidAutumn]) {

_startImage = [StartImage midAutumnImage];

}else{

NSUInteger count = _imageLoadedArray.count;

if (count > 0) {

NSUInteger index = arc4random()%count;

_startImage = [_imageLoadedArray objectAtIndex:index];

}else{

_startImage = [StartImage defautImage];

}

}

[self saveDisplayImageName:_startImage.fileName];

[self refreshImagesPlist];

return _startImage;

}

- (StartImage *)curImage{

if (!_startImage) {

_startImage = [StartImage defautImage];

}

return _startImage;

}

- (NSString *)pathOfSTPlist{

return [[self downloadPath] stringByAppendingPathComponent:@"STARTIMAGE.plist"];

}

- (void)loadStartImages{

NSArray *plistArray = [NSArray arrayWithContentsOfFile:[self pathOfSTPlist]];

plistArray = [NSObject arrayFromJSON:plistArray ofObjects:@"StartImage"];

NSMutableArray *imageLoadedArray = [[NSMutableArray alloc] init];

NSFileManager *fm = [NSFileManager defaultManager];

for (StartImage *curST in plistArray) {

if ([fm fileExistsAtPath:curST.pathDisk]) {

[imageLoadedArray addObject:curST];

}

}

NSString *preDisplayImageName = [self getDisplayImageName];

if (preDisplayImageName && preDisplayImageName.length > 0) {

NSUInteger index = [imageLoadedArray indexOfObjectPassingTest:^BOOL(id obj, NSUInteger idx, BOOL *stop) {

if ([[(StartImage *)obj fileName] isEqualToString:preDisplayImageName]) {

*stop = YES;

return YES;

}

return NO;

}];

if (index != NSNotFound && imageLoadedArray.count > 1) {//imageLoadedArray.count > 1 是因为，如果一共就一张图片，那么即便上次显示了这张图片，也应该再次显示它

[imageLoadedArray removeObjectAtIndex:index];

}

}

self.imageLoadedArray = imageLoadedArray;

}

- (void)refreshImagesPlist{

NSString *aPath = @"api/wallpaper/wallpapers";

NSDictionary *params = @{@"type" : @"3"};

[[CodingNetAPIClient sharedJsonClient] GET:aPath parameters:params success:^(AFHTTPRequestOperation *operation, id responseObject) {

DebugLog(@"\n===========response===========\n%@:\n%@", aPath, responseObject);

id error = [self handleResponse:responseObject];

if (!error) {

NSArray *resultA = [responseObject valueForKey:@"data"];

if ([self createFolder:[self downloadPath]]) {

if ([resultA writeToFile:[self pathOfSTPlist] atomically:YES]) {

[[StartImagesManager shareManager] startDownloadImages];

}

}

}

} failure:^(AFHTTPRequestOperation *operation, NSError *error) {

DebugLog(@"\n===========response===========\n%@:\n%@", aPath, error);

}];

}

- (void)startDownloadImages{

if (![AFNetworkReachabilityManager sharedManager].reachableViaWiFi) {

return;

}

NSArray *plistArray = [NSArray arrayWithContentsOfFile:[self pathOfSTPlist]];

plistArray = [NSObject arrayFromJSON:plistArray ofObjects:@"StartImage"];

NSMutableArray *needToDownloadArray = [NSMutableArray array];

NSFileManager *fm = [NSFileManager defaultManager];

for (StartImage *curST in plistArray) {

if (![fm fileExistsAtPath:curST.pathDisk]) {

[needToDownloadArray addObject:curST];

}

}

for (StartImage *curST in needToDownloadArray) {

[curST startDownloadImage];

}

}

- (void)saveDisplayImageName:(NSString *)name{

NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];

[defaults setObject:name forKey:kStartImageName];

[defaults synchronize];

}

- (NSString *)getDisplayImageName{

NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];

return [defaults objectForKey:kStartImageName];

}

@implementation StartImage

- (NSString *)fileName{

if (!_fileName && _url.length > 0) {

_fileName = [[_url componentsSeparatedByString:@"/"] lastObject];

}

return _fileName;

}

- (NSString *)descriptionStr{

if (!_descriptionStr && _group) {

_descriptionStr = [NSString stringWithFormat:@"\"%@\" © %@", _group.name.length > 0? _group.name : @"今天天气不错", _group.author.length > 0? _group.author : @"作者"];

}

return _descriptionStr;

}

- (NSString *)pathDisk{

if (!_pathDisk && _url) {

NSString *documentPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject];

_pathDisk = [[documentPath

stringByAppendingPathComponent:@"Coding_StartImages"]

stringByAppendingPathComponent:[[_url componentsSeparatedByString:@"/"] lastObject]];

}

return _pathDisk;

}

+ (StartImage *)defautImage{

StartImage *st = [[StartImage alloc] init];

st.descriptionStr = @"\"Light Returning\" © 十一步";

st.fileName = @"STARTIMAGE.jpg";

st.pathDisk = [[NSBundle mainBundle] pathForResource:@"STARTIMAGE" ofType:@"jpg"];

return st;

}

+ (StartImage *)midAutumnImage{

StartImage *st = [[StartImage alloc] init];

st.descriptionStr = @"\"中秋快乐\" © Mango";

st.fileName = @"MIDAUTUMNIMAGE.jpg";

st.pathDisk = [[NSBundle mainBundle] pathForResource:@"MIDAUTUMNIMAGE" ofType:@"jpg"];

return st;

}

- (UIImage *)image{

return [UIImage imageWithContentsOfFile:self.pathDisk];

}

- (void)startDownloadImage{

NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];

AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration];

NSURL *URL = [NSURL URLWithString:self.url];

NSURLRequest *request = [NSURLRequest requestWithURL:URL];

NSURLSessionDownloadTask *downloadTask = [manager downloadTaskWithRequest:request progress:nil destination:^NSURL *(NSURL *targetPath, NSURLResponse *response) {

NSString *documentPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject];

NSString *pathDisk = [[documentPath stringByAppendingPathComponent:@"Coding_StartImages"] stringByAppendingPathComponent:[response suggestedFilename]];

return [NSURL fileURLWithPath:pathDisk];

} completionHandler:^(NSURLResponse *response, NSURL *filePath, NSError *error) {

DebugLog(@"downloaded file_path is to: %@", filePath);

}];

[downloadTask resume];

}

@implementation Group