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QXLive/Manager/QXRedPacketManager.m

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+//
+//  QXRedPacketManager.m
+//  QXLive
+//
+//  Created by 启星 on 2025/10/11.
+//
+
+#import "QXRedPacketManager.h"
+
+@interface QXRedPacketManager ()
+@property (nonatomic, strong) NSMutableDictionary<NSString *, QXRedPacketModel *> *redPackets;
+@property (nonatomic, strong) NSTimer *checkTimer;
+@end
+
+@implementation QXRedPacketManager
+
++ (instancetype)sharedManager {
+    static QXRedPacketManager *instance = nil;
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        instance = [[QXRedPacketManager alloc] init];
+    });
+    return instance;
+}
+
+- (instancetype)init {
+    self = [super init];
+    if (self) {
+        _redPackets = [NSMutableDictionary dictionary];
+        [self startCheckTimer];
+    }
+    return self;
+}
+
+- (void)addRedPacket:(QXRedPacketModel *)redPacket {
+    if (!redPacket.packetId) return;
+    
+    self.redPackets[redPacket.packetId] = redPacket;
+    
+    if ([self.delegate respondsToSelector:@selector(QXRedPacketManager:didAddRedPacket:)]) {
+        [self.delegate respondsToSelector:@selector(QXRedPacketManager:didAddRedPacket:)];
+    }
+}
+
+- (void)removeRedPacket:(NSString *)packetId {
+    [self.redPackets removeObjectForKey:packetId];
+    
+    if ([self.delegate respondsToSelector:@selector(QXRedPacketManager:didRemoveRedPacket:)]) {
+        [self.delegate QXRedPacketManager:self didRemoveRedPacket:packetId];
+    }
+}
+
+- (NSArray<QXRedPacketModel *> *)allRedPackets {
+    return [self.redPackets allValues];
+}
+
+- (QXRedPacketModel *)redPacketAtPosition:(NSInteger)position {
+    for (QXRedPacketModel *packet in self.redPackets.allValues) {
+        if (packet.position == position) {
+            return packet;
+        }
+    }
+    return nil;
+}
+
+- (void)startCheckTimer {
+    self.checkTimer = [NSTimer scheduledTimerWithTimeInterval:1.0
+                                                      target:self
+                                                    selector:@selector(checkAndUpdateRedPackets)
+                                                    userInfo:nil
+                                                     repeats:YES];
+}
+
+- (void)checkAndUpdateRedPackets {
+    NSArray *packets = [self.allRedPackets copy];
+    
+    for (QXRedPacketModel *packet in packets) {
+        BOOL wasAvailable = packet.isAvailable;
+        packet.isAvailable = [packet canOpenNow];
+        
+        // 状态发生变化时通知
+        if (wasAvailable != packet.isAvailable) {
+            if ([self.delegate respondsToSelector:@selector(QXRedPacketManager:didUpdateRedPacket:)]) {
+                [self.delegate QXRedPacketManager:self didUpdateRedPacket:packet];
+            }
+        }
+        
+        // 倒计时结束的红包可以设置自动移除
+//        if (packet.type == RedPacketTypeCountdown && [packet remainingTime] <= -10) {
+//            // 倒计时结束10秒后自动移除
+//            [self removeRedPacket:packet.packetId];
+//        }
+    }
+}
+
+- (void)dealloc {
+    [self.checkTimer invalidate];
+    self.checkTimer = nil;
+}
+
+@end