Resolve merge conflicts in ChatViewModel.swift (geohash sampling comments and removed background nudge)

bitchat/ViewModels/ChatViewModel.swift

@@ -3043,10 +3043,8 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
         let mentionRegex = try? NSRegularExpression(pattern: mentionPattern, options: [])
         let hashtagRegex = try? NSRegularExpression(pattern: hashtagPattern, options: [])
         
-        let nsContent = contentText as NSString
+        let mentionMatches = mentionRegex?.matches(in: contentText, options: [], range: NSRange(location: 0, length: contentText.count)) ?? []
-        let nsLen = nsContent.length
+        let hashtagMatches = hashtagRegex?.matches(in: contentText, options: [], range: NSRange(location: 0, length: contentText.count)) ?? []
-        let mentionMatches = mentionRegex?.matches(in: contentText, options: [], range: NSRange(location: 0, length: nsLen)) ?? []
-        let hashtagMatches = hashtagRegex?.matches(in: contentText, options: [], range: NSRange(location: 0, length: nsLen)) ?? []
         
         // Combine and sort all matches
         var allMatches: [(range: NSRange, type: String)] = []
@@ -3063,7 +3061,6 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
         for (matchRange, matchType) in allMatches {
             // Add text before the match
             if let range = Range(matchRange, in: contentText) {
-                if lastEndIndex < range.lowerBound {
                 let beforeText = String(contentText[lastEndIndex..<range.lowerBound])
                 if !beforeText.isEmpty {
                     var normalStyle = AttributeContainer()
@@ -3071,7 +3068,6 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
                     normalStyle.foregroundColor = isDark ? Color.white : Color.black
                     processedContent.append(AttributedString(beforeText).mergingAttributes(normalStyle))
                 }
-                }
                 
                 // Add the match with appropriate styling
                 let matchText = String(contentText[range])
@@ -3088,7 +3084,7 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
                 
                 processedContent.append(AttributedString(matchText).mergingAttributes(matchStyle))
                 
-                if lastEndIndex < range.upperBound { lastEndIndex = range.upperBound }
+                lastEndIndex = range.upperBound
             }
         }
         
@@ -3165,12 +3161,9 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
             
             // For extremely long content, render as plain text to avoid heavy regex/layout work,
             // unless the content includes Cashu tokens we want to chip-render below
-            // Compute NSString-backed length for regex/nsrange correctness with multi-byte characters
-            let nsContent = content as NSString
-            let nsLen = nsContent.length
             let containsCashuEarly: Bool = {
                 let rx = Regexes.quickCashuPresence
-                return rx.numberOfMatches(in: content, options: [], range: NSRange(location: 0, length: nsLen)) > 0
+                return rx.numberOfMatches(in: content, options: [], range: NSRange(location: 0, length: content.count)) > 0
             }()
             if (content.count > 4000 || content.hasVeryLongToken(threshold: 1024)) && !containsCashuEarly {
                 var plainStyle = AttributeContainer()
@@ -3188,6 +3181,8 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
             let lnurlRegex = Regexes.lnurl
             let lightningSchemeRegex = Regexes.lightningScheme
             let detector = Regexes.linkDetector
+            
+            let nsLen = content.count
             let hasMentionsHint = content.contains("@")
             let hasHashtagsHint = content.contains("#")
             let hasURLHint = content.contains("://") || content.contains("www.") || content.contains("http")
@@ -3267,7 +3262,6 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
             for (range, type) in allMatches {
                 // Add text before match
                 if let nsRange = Range(range, in: content) {
-                    if lastEnd < nsRange.lowerBound {
                     let beforeText = String(content[lastEnd..<nsRange.lowerBound])
                     if !beforeText.isEmpty {
                         var beforeStyle = AttributeContainer()
@@ -3280,7 +3274,6 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
                         }
                         result.append(AttributedString(beforeText).mergingAttributes(beforeStyle))
                     }
-                    }
                     
                     // Add styled match
                     let matchText = String(content[nsRange])
@@ -3387,12 +3380,9 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
                             result.append(AttributedString(matchText).mergingAttributes(matchStyle))
                         }
                     }
-                    // Advance lastEnd safely in case of overlaps
-                    if lastEnd < nsRange.upperBound {
                     lastEnd = nsRange.upperBound
                 }
             }
-            }
             
             // Add remaining text
             if lastEnd < content.endIndex {
@@ -3488,16 +3478,13 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
             // Regular expression to find @mentions
             let pattern = "@([\\p{L}0-9_]+)"
             let regex = try? NSRegularExpression(pattern: pattern, options: [])
-            let nsContent = contentText as NSString
+            let matches = regex?.matches(in: contentText, options: [], range: NSRange(location: 0, length: contentText.count)) ?? []
-            let nsLen = nsContent.length
-            let matches = regex?.matches(in: contentText, options: [], range: NSRange(location: 0, length: nsLen)) ?? []
             
             var lastEndIndex = contentText.startIndex
             
             for match in matches {
                 // Add text before the mention
                 if let range = Range(match.range(at: 0), in: contentText) {
-                    if lastEndIndex < range.lowerBound {
                     let beforeText = String(contentText[lastEndIndex..<range.lowerBound])
                     if !beforeText.isEmpty {
                         var normalStyle = AttributeContainer()
@@ -3505,7 +3492,6 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
                         normalStyle.foregroundColor = isDark ? Color.white : Color.black
                         processedContent.append(AttributedString(beforeText).mergingAttributes(normalStyle))
                     }
-                    }
                     
                     // Add the mention with highlight
                     let mentionText = String(contentText[range])
@@ -3514,7 +3500,7 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
                     mentionStyle.foregroundColor = Color.orange
                     processedContent.append(AttributedString(mentionText).mergingAttributes(mentionStyle))
                     
-                    if lastEndIndex < range.upperBound { lastEndIndex = range.upperBound }
+                    lastEndIndex = range.upperBound
                 }
             }
             
@@ -4712,9 +4698,7 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
         // Allow optional disambiguation suffix '#abcd' for duplicate nicknames
         let pattern = "@([\\p{L}0-9_]+(?:#[a-fA-F0-9]{4})?)"
         let regex = try? NSRegularExpression(pattern: pattern, options: [])
-        let nsContent = content as NSString
+        let matches = regex?.matches(in: content, options: [], range: NSRange(location: 0, length: content.count)) ?? []
-        let nsLen = nsContent.length
-        let matches = regex?.matches(in: content, options: [], range: NSRange(location: 0, length: nsLen)) ?? []
         
         var mentions: [String] = []
         let peerNicknames = meshService.getPeerNicknames()