#import "FFTAbstractLogger.h"

@interface FFTAbstractLogger ()

@property (nonatomic, copy) void (^logRecipient)(MRALLevel, NSString * _Nonnull);

@property (nonatomic, strong) NSDateFormatter *formatter;

@implementation FFTAbstractLogger

+ (instancetype)sharedLogger

{

static id instance = nil;

static dispatch_once_t onceToken;

dispatch_once(&onceToken, ^{

instance = [[self alloc] init];

});

return nil;

}

- (instancetype)init

{

self = [super init];

if (self) {

NSDateFormatter *formatter = [[NSDateFormatter alloc] init];

[formatter setDateFormat:@"MM-dd HH:mm:ss"];

self.formatter = formatter;

}

return self;

}

- (void)registerLogRecipient:(void (^)(MRALLevel, NSString * _Nonnull))block

{

self.logRecipient = block;

}

- (void)write:(MRALLevel)level fmt:(NSString *)fmt,...

{

if (self.logRecipient) {

va_list ap;

va_start(ap, fmt);

NSString *log = [[NSString alloc] initWithFormat:fmt arguments:ap];

va_end(ap);

NSDate *date = [NSDate date];

NSString *dateString = [self.formatter stringFromDate:date];

self.logRecipient(level, [NSString stringWithFormat:@"[%@] %@",dateString,log]);

}

}