Tags are now search case insensitive (fixes #1048)

The issue was that the tags string array was not correctly searched case insensitive via the predicate CONTAINS

MacPass.xcodeproj/project.pbxproj

@@ -117,6 +117,7 @@
 		4C45FB30178E0CE20010007D /* MPTestDocument.m in Sources */ = {isa = PBXBuildFile; fileRef = 4C45FB2F178E0CE20010007D /* MPTestDocument.m */; };
 		4C46B88517063A070046109A /* NSString+MPPasswordCreation.m in Sources */ = {isa = PBXBuildFile; fileRef = 4C46B88417063A070046109A /* NSString+MPPasswordCreation.m */; };
 		4C473A8718AFD85B0073FD2E /* XCTest.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 4C473A8518AFD7250073FD2E /* XCTest.framework */; };
+		4C49CFD624252389004092E7 /* KPKEntry+MPTags.m in Sources */ = {isa = PBXBuildFile; fileRef = 4C49CFD524252389004092E7 /* KPKEntry+MPTags.m */; };
 		4C4A100F176286FD00BBF2CA /* MPTableView.m in Sources */ = {isa = PBXBuildFile; fileRef = 4C4A100E176286FD00BBF2CA /* MPTableView.m */; };
 		4C4B728518E4B9B400A1A5D5 /* MPDockTileHelper.m in Sources */ = {isa = PBXBuildFile; fileRef = 4C4B728418E4B9B400A1A5D5 /* MPDockTileHelper.m */; };
 		4C4B7EE917A45EC6000234C7 /* MPDatePickingViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 4C4B7EE717A45EC5000234C7 /* MPDatePickingViewController.m */; };
@@ -533,6 +534,8 @@
 		4C46B88317063A070046109A /* NSString+MPPasswordCreation.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = "NSString+MPPasswordCreation.h"; sourceTree = "<group>"; };
 		4C46B88417063A070046109A /* NSString+MPPasswordCreation.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = "NSString+MPPasswordCreation.m"; sourceTree = "<group>"; };
 		4C473A8518AFD7250073FD2E /* XCTest.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = XCTest.framework; path = Library/Frameworks/XCTest.framework; sourceTree = DEVELOPER_DIR; };
+		4C49CFD424252389004092E7 /* KPKEntry+MPTags.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "KPKEntry+MPTags.h"; sourceTree = "<group>"; };
+		4C49CFD524252389004092E7 /* KPKEntry+MPTags.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = "KPKEntry+MPTags.m"; sourceTree = "<group>"; };
 		4C4A100D176286FD00BBF2CA /* MPTableView.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = MPTableView.h; sourceTree = "<group>"; };
 		4C4A100E176286FD00BBF2CA /* MPTableView.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = MPTableView.m; sourceTree = "<group>"; };
 		4C4B2ED122D8CA6100EB6BFD /* de */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = de; path = de.lproj/PluginRepositoryBrowserView.strings; sourceTree = "<group>"; };
@@ -1147,6 +1150,8 @@
 				3C0CDECE21CFEDD200B2A10B /* NSTextView+MPTouchBarExtension.m */,
 				4C2057F523CF3E9A00C731EC /* NSRunningApplication+MPAdditions.h */,
 				4C2057F623CF3E9A00C731EC /* NSRunningApplication+MPAdditions.m */,
+				4C49CFD424252389004092E7 /* KPKEntry+MPTags.h */,
+				4C49CFD524252389004092E7 /* KPKEntry+MPTags.m */,
 			);
 			name = Categories;
 			sourceTree = "<group>";
@@ -2049,6 +2054,7 @@
 				4C735FC02035FCBF00708D53 /* MPPluginEntryActionContext.m in Sources */,
 				4C61EA0316D2FD0800AC519E /* MPOutlineViewController.m in Sources */,
 				4C65C79C16DD283900E32CFF /* MPToolbarButton.m in Sources */,
+				4C49CFD624252389004092E7 /* KPKEntry+MPTags.m in Sources */,
 				4C431BCD16E2A82800700A81 /* MPPasteBoardController.m in Sources */,
 				4C6AEEF91A043E2B00CA2420 /* MPDocumentController.m in Sources */,
 				4C370EFE215B76CB00703AAE /* MPOutlineTableCellView.m in Sources */,

MacPass/KPKEntry+MPTags.h

@@ -0,0 +1,22 @@
+//
+//  KPKEntry+MPTags.h
+//  MacPass
+//
+//  Created by Michael Starke on 20.03.20.
+//  Copyright © 2020 HicknHack Software GmbH. All rights reserved.
+//
+
+#import <AppKit/AppKit.h>
+
+
+#import <KeePassKit/KeePassKit.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface KPKEntry (MPTags)
+
+@property (readonly, copy) NSString *tagsString;
+
+@end
+
+NS_ASSUME_NONNULL_END

MacPass/KPKEntry+MPTags.m

@@ -0,0 +1,24 @@
+//
+//  KPKEntry+MPTags.m
+//  MacPass
+//
+//  Created by Michael Starke on 20.03.20.
+//  Copyright © 2020 HicknHack Software GmbH. All rights reserved.
+//
+
+#import "KPKEntry+MPTags.h"
+
+#import <AppKit/AppKit.h>
+
+
+@implementation KPKEntry (MPTags)
+
++ (NSSet<NSString *> *)keyPathsForValuesAffectingTagsString {
+  return [NSSet setWithObject:NSStringFromSelector(@selector(tags))];
+}
+
+- (NSString *)tagsString {
+  return [self.tags componentsJoinedByString:@" "];
+}
+
+@end

MacPass/MPDocument+Search.m

@@ -64,7 +64,7 @@ NSString *const kMPDocumentSearchResultsKey           = @"kMPDocumentSearchResul
   MPDocument __weak *weakSelf = self;
   dispatch_queue_t backgroundQueue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
   dispatch_async(backgroundQueue, ^{
-    NSArray *results = [weakSelf _findEntriesMatchingCurrentSearch];
+    NSArray *results = [weakSelf _findEntriesMatchingSearch:weakSelf.searchContext];
     dispatch_sync(dispatch_get_main_queue(), ^{
       [NSNotificationCenter.defaultCenter postNotificationName:MPDocumentDidChangeSearchResults object:weakSelf userInfo:@{ kMPDocumentSearchResultsKey: results }];
     });
@@ -128,9 +128,9 @@ NSString *const kMPDocumentSearchResultsKey           = @"kMPDocumentSearchResul
 }
 
 #pragma mark Search
-- (NSArray *)_findEntriesMatchingCurrentSearch {
+- (NSArray *)_findEntriesMatchingSearch:(MPEntrySearchContext *)context {
   /* Filter double passwords */
-  if(MPIsFlagSetInOptions(MPEntrySearchDoublePasswords, self.searchContext.searchFlags)) {
+  if(MPIsFlagSetInOptions(MPEntrySearchDoublePasswords, context.searchFlags)) {
     NSMutableDictionary *passwordToEntryMap = [[NSMutableDictionary alloc] initWithCapacity:100];
     /* Build up a usage map */
     for(KPKEntry *entry in self.root.searchableChildEntries) {
@@ -155,7 +155,7 @@ NSString *const kMPDocumentSearchResultsKey           = @"kMPDocumentSearchResul
     }
     return doublePasswords;
   }
-  if(MPIsFlagSetInOptions(MPEntrySearchExpiredEntries, self.searchContext.searchFlags)) {
+  if(MPIsFlagSetInOptions(MPEntrySearchExpiredEntries, context.searchFlags)) {
     NSPredicate *expiredPredicate = [NSPredicate predicateWithBlock:^BOOL(id evaluatedObject, NSDictionary *bindings) {
       KPKNode *node = evaluatedObject;
       return node.timeInfo.isExpired;
@@ -163,7 +163,7 @@ NSString *const kMPDocumentSearchResultsKey           = @"kMPDocumentSearchResul
     return [[self.root searchableChildEntries] filteredArrayUsingPredicate:expiredPredicate];
   }
   /* Filter using predicates */
-  NSArray *predicates = [self _filterPredicatesWithString:self.searchContext.searchString];
+  NSArray *predicates = [self _filterPredicatesWithString:context.searchString];
   if(predicates) {
     NSPredicate *fullFilter = [NSCompoundPredicate orPredicateWithSubpredicates:predicates];
     return [[self.root searchableChildEntries] filteredArrayUsingPredicate:fullFilter];
@@ -194,7 +194,7 @@ NSString *const kMPDocumentSearchResultsKey           = @"kMPDocumentSearchResul
     [prediactes addObject:[NSPredicate predicateWithFormat:@"SELF.notes CONTAINS[cd] %@", string]];
   }
   if(searchInAllAttributes) {
-    [prediactes addObject:[NSPredicate predicateWithFormat:@"SELF.tags CONTAINS[cd] %@", string]];
+    [prediactes addObject:[NSPredicate predicateWithFormat:@"SELF.tagsString CONTAINS[cd] %@", string]];
     [prediactes addObject:[NSPredicate predicateWithFormat:@"SELF.uuid.UUIDString CONTAINS[cd] %@", string]];
 
     NSPredicate *allAttributesPredicate = [NSPredicate predicateWithBlock:^BOOL(id  _Nullable evaluatedObject, NSDictionary<NSString *,id> * _Nullable bindings) {