//
//  SPSBNotificationDelegateManager.m
//  我的社保
//
//  Created by shanp on 2021/4/20.
//

#import "SPSBNotificationDelegateManager.h"
#import <JXHMacro.h>

@implementation SPSBNotificationDelegateManager

+ (instancetype)alloc {
    NSAssert(![self isMemberOfClass:[SPSBNotificationDelegateManager class]], @"SPSBNotificationDelegateManager is singleton, you should not instantiate it directly.");
    return [super alloc];
}

+ (SPSBNotificationDelegateManager *)shareManager {
    static SPSBNotificationDelegateManager *manager = nil;
    static dispatch_once_t once;
    dispatch_once(&once, ^{
        manager = [[super allocWithZone:nil] init];
        manager->_spsb_delegates = NSMutableDictionary.new;
    });
    
    return manager;
}

+ (instancetype)allocWithZone:(struct _NSZone *)zone {
    return [self shareManager];
}

- (void)setDelegate:(id<SPSBNotificationDelegate>)delegate keys:(NSArray<SPSBNotificationDelegateKey> *)keys {
    for (SPSBNotificationDelegateKey key in keys) {
        [self setDelegate:delegate key:key];
    }
}

- (void)removeDelegate:(id<SPSBNotificationDelegate>)delegate keys:(NSArray<SPSBNotificationDelegateKey> *)keys {
    for (SPSBNotificationDelegateKey key in keys) {
        [self removeDelegate:delegate key:key];
    }
}

- (void)setDelegate:(id<SPSBNotificationDelegate>)delegate key:(SPSBNotificationDelegateKey)key {
    dispatch_main_async_safe(^{
        if (!self->_spsb_delegates[key]) {
            self->_spsb_delegates[key] = [NSMapTable weakToStrongObjectsMapTable];
        }
        [self->_spsb_delegates[key] setObject:key forKey:delegate];
    });
}

- (void)removeDelegate:(id<SPSBNotificationDelegate>)delegate key:(SPSBNotificationDelegateKey)key {
    dispatch_main_async_safe(^{
        if (!self->_spsb_delegates[key]) return;
        [self->_spsb_delegates[key] removeObjectForKey:delegate];
        if (self->_spsb_delegates[key].count == 0) {
            self->_spsb_delegates[key] = nil;
        }
    });
}

@end

SPSBNotificationDelegateManager *spsb_NotificationDelegateManager() {
    return [SPSBNotificationDelegateManager shareManager];
}