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//
// SDLFile.m
// SmartDeviceLink-iOS
//
// Created by Joel Fischer on 10/14/15.
// Copyright © 2015 smartdevicelink. All rights reserved.
//
#import "SDLFile.h"
#import "SDLFileManager.h"
#import "SDLFileType.h"
NS_ASSUME_NONNULL_BEGIN
@interface SDLFile ()
@property (copy, nonatomic, readwrite, nullable) NSURL *fileURL;
@property (copy, nonatomic, readwrite) NSData *data;
@property (strong, nonatomic, readwrite) SDLFileType fileType;
@property (assign, nonatomic, readwrite) BOOL persistent;
@property (copy, nonatomic, readwrite) NSString *name;
@property (nonatomic, readwrite) NSInputStream *inputStream;
@end
@implementation SDLFile
#pragma mark - Lifecycle
- (instancetype)initWithFileURL:(NSURL *)url name:(NSString *)name persistent:(BOOL)persistent {
self = [super init];
if (!self) {
return nil;
}
BOOL exists = url.isFileURL && [url checkResourceIsReachableAndReturnError:nil];
if (!exists) {
return nil;
}
_fileURL = url;
_data = [NSData data];
_name = name;
_persistent = persistent;
_fileType = [self.class sdl_fileTypeFromFileExtension:url.pathExtension];
_overwrite = NO;
return self;
}
+ (instancetype)persistentFileAtFileURL:(NSURL *)url name:(NSString *)name {
return [[self alloc] initWithFileURL:url name:name persistent:YES];
}
+ (instancetype)fileAtFileURL:(NSURL *)url name:(NSString *)name {
return [[self alloc] initWithFileURL:url name:name persistent:NO];
}
- (instancetype)initWithData:(NSData *)data name:(NSString *)name fileExtension:(NSString *)extension persistent:(BOOL)persistent {
self = [super init];
if (!self) {
return nil;
}
if (data.length == 0) {
return nil;
}
_fileURL = nil;
_data = data;
_name = name;
_persistent = persistent;
_fileType = [self.class sdl_fileTypeFromFileExtension:extension];
_overwrite = NO;
return self;
}
+ (instancetype)persistentFileWithData:(NSData *)data name:(NSString *)name fileExtension:(NSString *)extension {
return [[self alloc] initWithData:data name:name fileExtension:extension persistent:YES];
}
+ (instancetype)fileWithData:(NSData *)data name:(NSString *)name fileExtension:(NSString *)extension {
return [[self alloc] initWithData:data name:name fileExtension:extension persistent:NO];
}
#pragma mark - Getters
- (NSData *)data {
if (_data.length == 0 && _fileURL != nil) {
return [NSData dataWithContentsOfURL:_fileURL];
}
return _data;
}
/**
Initalizes a socket from which to read data.
@return A socket
*/
- (NSInputStream *)inputStream {
if (!_inputStream) {
if (_fileURL) {
// Data in file
_inputStream = [[NSInputStream alloc] initWithURL:_fileURL];
} else if (_data.length != 0) {
// Data in memory
_inputStream = [[NSInputStream alloc] initWithData:_data];
}
}
return _inputStream;
}
/**
Gets the size of the data. The data may be stored on disk or it may already be in the application's memory.
@return The size of the data.
*/
- (unsigned long long)fileSize {
if (_fileURL) {
// Data in file
NSString *path = [_fileURL path];
return [[NSFileManager defaultManager] attributesOfItemAtPath:path error:nil].fileSize;
} else if (_data) {
// Data in memory
return _data.length;
}
return 0;
}
#pragma mark - File Type
+ (SDLFileType)sdl_fileTypeFromFileExtension:(NSString *)fileExtension {
if ([fileExtension caseInsensitiveCompare:@"bmp"] == NSOrderedSame) {
return SDLFileTypeBMP;
} else if (([fileExtension caseInsensitiveCompare:@"jpg"] == NSOrderedSame) ||
([fileExtension caseInsensitiveCompare:@"jpeg"] == NSOrderedSame)) {
return SDLFileTypeJPEG;
} else if ([fileExtension caseInsensitiveCompare:@"png"] == NSOrderedSame) {
return SDLFileTypePNG;
} else if ([fileExtension caseInsensitiveCompare:@"wav"] == NSOrderedSame) {
return SDLFileTypeWAV;
} else if ([fileExtension caseInsensitiveCompare:@"mp3"] == NSOrderedSame) {
return SDLFileTypeMP3;
} else if ([fileExtension caseInsensitiveCompare:@"aac"] == NSOrderedSame) {
return SDLFileTypeAAC;
} else if ([fileExtension caseInsensitiveCompare:@"json"] == NSOrderedSame) {
return SDLFileTypeJSON;
} else {
return SDLFileTypeBinary;
}
}
#pragma mark - NSCopying
- (id)copyWithZone:(nullable NSZone *)zone {
return [[self.class allocWithZone:zone] initWithFileURL:_fileURL name:_name persistent:_persistent];
}
@end
NS_ASSUME_NONNULL_END
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