144 lines
4.6 KiB
Objective-C
144 lines
4.6 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 "TSGroupModel.h"
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#import "FunctionalUtil.h"
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#import <SignalCoreKit/NSString+SSK.h>
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NS_ASSUME_NONNULL_BEGIN
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@interface TSGroupModel ()
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@property (nullable, nonatomic) NSString *groupName;
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@end
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#pragma mark -
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@implementation TSGroupModel
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#if TARGET_OS_IOS
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- (instancetype)initWithTitle:(nullable NSString *)title
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memberIds:(NSArray<NSString *> *)memberIds
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image:(nullable UIImage *)image
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groupId:(NSData *)groupId
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{
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OWSAssertDebug(memberIds);
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_groupName = title;
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_groupMemberIds = [memberIds copy];
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_groupImage = image; // image is stored in DB
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_groupId = groupId;
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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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// Occasionally seeing this as nil in legacy data,
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// which causes crashes.
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if (_groupMemberIds == nil) {
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_groupMemberIds = [NSArray new];
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}
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return self;
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}
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- (BOOL)isEqual:(id)other {
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if (other == self) {
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return YES;
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}
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if (!other || ![other isKindOfClass:[self class]]) {
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return NO;
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}
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return [self isEqualToGroupModel:other];
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}
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- (BOOL)isEqualToGroupModel:(TSGroupModel *)other {
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if (self == other)
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return YES;
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if (![_groupId isEqualToData:other.groupId]) {
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return NO;
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}
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if (![_groupName isEqual:other.groupName]) {
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return NO;
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}
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if (!(_groupImage != nil && other.groupImage != nil &&
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[UIImagePNGRepresentation(_groupImage) isEqualToData:UIImagePNGRepresentation(other.groupImage)])) {
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return NO;
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}
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NSMutableArray *compareMyGroupMemberIds = [NSMutableArray arrayWithArray:_groupMemberIds];
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[compareMyGroupMemberIds removeObjectsInArray:other.groupMemberIds];
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if ([compareMyGroupMemberIds count] > 0) {
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return NO;
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}
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return YES;
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}
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- (NSString *)getInfoStringAboutUpdateTo:(TSGroupModel *)newModel contactsManager:(id<ContactsManagerProtocol>)contactsManager {
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NSString *updatedGroupInfoString = @"";
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if (self == newModel) {
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return NSLocalizedString(@"GROUP_UPDATED", @"");
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}
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if (![_groupName isEqual:newModel.groupName]) {
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updatedGroupInfoString = [updatedGroupInfoString
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stringByAppendingString:[NSString stringWithFormat:NSLocalizedString(@"GROUP_TITLE_CHANGED", @""),
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newModel.groupName]];
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}
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if (_groupImage != nil && newModel.groupImage != nil &&
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!([UIImagePNGRepresentation(_groupImage) isEqualToData:UIImagePNGRepresentation(newModel.groupImage)])) {
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updatedGroupInfoString =
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[updatedGroupInfoString stringByAppendingString:NSLocalizedString(@"GROUP_AVATAR_CHANGED", @"")];
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}
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if ([updatedGroupInfoString length] == 0) {
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updatedGroupInfoString = NSLocalizedString(@"GROUP_UPDATED", @"");
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}
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NSSet *oldMembers = [NSSet setWithArray:_groupMemberIds];
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NSSet *newMembers = [NSSet setWithArray:newModel.groupMemberIds];
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NSMutableSet *membersWhoJoined = [NSMutableSet setWithSet:newMembers];
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[membersWhoJoined minusSet:oldMembers];
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NSMutableSet *membersWhoLeft = [NSMutableSet setWithSet:oldMembers];
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[membersWhoLeft minusSet:newMembers];
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if ([membersWhoLeft count] > 0) {
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NSArray *oldMembersNames = [[membersWhoLeft allObjects] map:^NSString*(NSString* item) {
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return [contactsManager displayNameForPhoneIdentifier:item];
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}];
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updatedGroupInfoString = [updatedGroupInfoString
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stringByAppendingString:[NSString
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stringWithFormat:NSLocalizedString(@"GROUP_MEMBER_LEFT", @""),
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[oldMembersNames componentsJoinedByString:@", "]]];
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}
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if ([membersWhoJoined count] > 0) {
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NSArray *newMembersNames = [[membersWhoJoined allObjects] map:^NSString*(NSString* item) {
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return [contactsManager displayNameForPhoneIdentifier:item];
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}];
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updatedGroupInfoString = [updatedGroupInfoString
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stringByAppendingString:[NSString stringWithFormat:NSLocalizedString(@"GROUP_MEMBER_JOINED", @""),
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[newMembersNames componentsJoinedByString:@", "]]];
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}
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return updatedGroupInfoString;
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}
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#endif
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- (nullable NSString *)groupName
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{
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return _groupName.filterStringForDisplay;
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}
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@end
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NS_ASSUME_NONNULL_END
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