Notes counter: show 0 by default; subscribe at building-level (precision 8) for notes and counter; keep building hidden in channel list

bitchat/Protocols/LocationChannel.swift

@@ -2,6 +2,7 @@ import Foundation
 
 /// Levels of location channels mapped to geohash precisions.
 enum GeohashChannelLevel: CaseIterable, Codable, Equatable {
+    case building
     case block
     case neighborhood
     case city
@@ -11,6 +12,7 @@ enum GeohashChannelLevel: CaseIterable, Codable, Equatable {
     /// Geohash length used for this level.
     var precision: Int {
         switch self {
+        case .building: return 8
         case .block: return 7
         case .neighborhood: return 6
         case .city: return 5
@@ -21,6 +23,7 @@ enum GeohashChannelLevel: CaseIterable, Codable, Equatable {
 
     var displayName: String {
         switch self {
+        case .building: return "Building"
         case .block: return "Block"
         case .neighborhood: return "Neighborhood"
         case .city: return "City"
@@ -35,6 +38,7 @@ extension GeohashChannelLevel {
         let container = try decoder.singleValueContainer()
         if let raw = try? container.decode(String.self) {
             switch raw {
+            case "building": self = .building
             case "block": self = .block
             case "neighborhood": self = .neighborhood
             case "city": self = .city
@@ -46,6 +50,7 @@ extension GeohashChannelLevel {
             }
         } else if let precision = try? container.decode(Int.self) {
             switch precision {
+            case 8: self = .building
             case 7: self = .block
             case 6: self = .neighborhood
             case 5: self = .city
@@ -61,6 +66,7 @@ extension GeohashChannelLevel {
     func encode(to encoder: Encoder) throws {
         var container = encoder.singleValueContainer()
         switch self {
+        case .building: try container.encode("building")
         case .block: try container.encode("block")
         case .neighborhood: try container.encode("neighborhood")
         case .city: try container.encode("city")

bitchat/Services/LocationChannelManager.swift

@@ -291,6 +291,12 @@ final class LocationChannelManager: NSObject, CLLocationManagerDelegate, Observa
         } else if let locality = pm.locality, !locality.isEmpty {
             dict[.block] = locality
         }
+        // Building: prefer place name/street/venue when available
+        if let name = pm.name, !name.isEmpty {
+            dict[.building] = name
+        } else if let thoroughfare = pm.thoroughfare, !thoroughfare.isEmpty {
+            dict[.building] = thoroughfare
+        }
         return dict
     }
 }

bitchat/Services/LocationNotesCounter.swift

@@ -6,7 +6,7 @@ final class LocationNotesCounter: ObservableObject {
     static let shared = LocationNotesCounter()
 
     @Published private(set) var geohash: String? = nil
-    @Published private(set) var count: Int? = nil
+    @Published private(set) var count: Int? = 0
     @Published private(set) var initialLoadComplete: Bool = false
 
     private var subscriptionID: String? = nil
@@ -19,7 +19,7 @@ final class LocationNotesCounter: ObservableObject {
         if geohash == norm { return }
         cancel()
         geohash = norm
-        count = nil
+        count = 0
         noteIDs.removeAll()
         initialLoadComplete = false
 
@@ -46,7 +46,7 @@ final class LocationNotesCounter: ObservableObject {
         }
         subscriptionID = nil
         geohash = nil
-        count = nil
+        count = 0
         noteIDs.removeAll()
     }
 }

bitchat/Views/ContentView.swift

@@ -1180,7 +1180,7 @@ struct ContentView: View {
                         LocationChannelManager.shared.enableLocationChannels()
                         LocationChannelManager.shared.refreshChannels()
                         // If we already have a block geohash, pass it; otherwise wait in the sheet.
-                        notesGeohash = LocationChannelManager.shared.availableChannels.first(where: { $0.level == .block })?.geohash
+                        notesGeohash = LocationChannelManager.shared.availableChannels.first(where: { $0.level == .building })?.geohash
                         showLocationNotes = true
                     }) {
                         HStack(alignment: .center, spacing: 4) {
@@ -1193,6 +1193,7 @@ struct ContentView: View {
                                     .foregroundColor(Color(hue: 0.60, saturation: 0.85, brightness: 0.82))
                                     .lineLimit(1)
                                     .fixedSize(horizontal: true, vertical: false)
+                                    .alignmentGuide(.firstTextBaseline) { d in d[.firstTextBaseline] }
                             }
                         }
                         .fixedSize(horizontal: true, vertical: false)
@@ -1234,7 +1235,7 @@ struct ContentView: View {
         }
         .sheet(isPresented: $showLocationNotes) {
             Group {
-                if let gh = notesGeohash ?? LocationChannelManager.shared.availableChannels.first(where: { $0.level == .block })?.geohash {
+                if let gh = notesGeohash ?? LocationChannelManager.shared.availableChannels.first(where: { $0.level == .building })?.geohash {
                     LocationNotesView(geohash: gh)
                         .environmentObject(viewModel)
                 } else {
@@ -1268,8 +1269,8 @@ struct ContentView: View {
                     .background(backgroundColor)
                     .foregroundColor(textColor)
                     .onChange(of: locationManager.availableChannels) { channels in
-                        if notesGeohash == nil, let block = channels.first(where: { $0.level == .block }) {
-                            notesGeohash = block.geohash
+                        if notesGeohash == nil, let building = channels.first(where: { $0.level == .building }) {
+                            notesGeohash = building.geohash
                         }
                     }
                 }
@@ -1481,8 +1482,8 @@ extension ContentView {
     private func updateNotesCounterSubscription() {
         switch locationManager.selectedChannel {
         case .mesh:
-            if let block = LocationChannelManager.shared.availableChannels.first(where: { $0.level == .block })?.geohash {
-                LocationNotesCounter.shared.subscribe(geohash: block)
+            if let building = LocationChannelManager.shared.availableChannels.first(where: { $0.level == .building })?.geohash {
+                LocationNotesCounter.shared.subscribe(geohash: building)
             } else {
                 LocationNotesCounter.shared.cancel()
             }

bitchat/Views/LocationChannelsSheet.swift

@@ -107,7 +107,7 @@ struct LocationChannelsSheet: View {
 
             // Nearby options
             if !manager.availableChannels.isEmpty {
-                ForEach(manager.availableChannels) { channel in
+                ForEach(manager.availableChannels.filter { $0.level != .building }) { channel in
                     let coverage = coverageString(forPrecision: channel.geohash.count)
                     let nameBase = locationName(for: channel.level)
                     let namePart = nameBase.map { formattedNamePrefix(for: channel.level) + $0 }
@@ -381,6 +381,7 @@ struct LocationChannelsSheet: View {
         case 5: return .city
         case 6: return .neighborhood
         case 7: return .block
+        case 8: return .building
         default: return .block
         }
     }