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78 lines
2.7 KiB
Objective-C
78 lines
2.7 KiB
Objective-C
//
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// Copyright (c) 2018 Open Whisper Systems. All rights reserved.
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//
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#import "OWSLinkedDeviceReadReceipt.h"
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#import <SessionProtocolKit/SessionProtocolKit.h>
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NS_ASSUME_NONNULL_BEGIN
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@implementation OWSLinkedDeviceReadReceipt
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- (instancetype)initWithSenderId:(NSString *)senderId
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messageIdTimestamp:(uint64_t)messageIdTimestamp
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readTimestamp:(uint64_t)readTimestamp
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{
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OWSAssertDebug(senderId.length > 0 && messageIdTimestamp > 0);
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NSString *receiptId =
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[OWSLinkedDeviceReadReceipt uniqueIdForSenderId:senderId messageIdTimestamp:messageIdTimestamp];
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self = [super initWithUniqueId:receiptId];
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if (!self) {
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return self;
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}
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_senderId = senderId;
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_messageIdTimestamp = messageIdTimestamp;
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_readTimestamp = readTimestamp;
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return self;
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}
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- (nullable instancetype)initWithCoder:(NSCoder *)coder
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{
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self = [super initWithCoder:coder];
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if (!self) {
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return self;
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}
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// renamed timestamp -> messageIdTimestamp
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if (!_messageIdTimestamp) {
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NSNumber *_Nullable legacyTimestamp = (NSNumber *)[coder decodeObjectForKey:@"timestamp"];
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OWSAssertDebug(legacyTimestamp.unsignedLongLongValue > 0);
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_messageIdTimestamp = legacyTimestamp.unsignedLongLongValue;
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}
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// For legacy objects, before we were tracking read time, use the original messages "sent" timestamp
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// as the local read time. This will always be at least a little bit earlier than the message was
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// actually read, which isn't ideal, but safer than persisting a disappearing message too long, especially
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// since we know they read it on their linked desktop.
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if (_readTimestamp == 0) {
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_readTimestamp = _messageIdTimestamp;
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}
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return self;
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}
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+ (NSString *)uniqueIdForSenderId:(NSString *)senderId messageIdTimestamp:(uint64_t)messageIdTimestamp
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{
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OWSAssertDebug(senderId.length > 0 && messageIdTimestamp > 0);
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return [NSString stringWithFormat:@"%@-%llu", senderId, messageIdTimestamp];
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}
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+ (nullable OWSLinkedDeviceReadReceipt *)findLinkedDeviceReadReceiptWithSenderId:(NSString *)senderId
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messageIdTimestamp:(uint64_t)messageIdTimestamp
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transaction:
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(YapDatabaseReadTransaction *)transaction
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{
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OWSAssertDebug(transaction);
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NSString *receiptId =
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[OWSLinkedDeviceReadReceipt uniqueIdForSenderId:senderId messageIdTimestamp:messageIdTimestamp];
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return [OWSLinkedDeviceReadReceipt fetchObjectWithUniqueID:receiptId transaction:transaction];
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}
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@end
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NS_ASSUME_NONNULL_END
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