[ConsoleLogView]: Feature: Added capability to search the logs

AltStore/Settings/Error Log/ConsoleLogView.swift

@@ -10,6 +10,10 @@ import SwiftUI
 class ConsoleLogViewModel: ObservableObject {
     @Published var logLines: [String] = []
     
+    @Published var searchTerm: String = ""
+    @Published var currentSearchIndex: Int = 0
+    @Published var searchResults: [Int] = []  // Stores indices of matching lines
+    
     private var fileWatcher: DispatchSourceFileSystemObject?
     
     private let backgroundQueue = DispatchQueue(label: "com.myapp.backgroundQueue", qos: .background)
@@ -47,15 +51,40 @@ class ConsoleLogViewModel: ObservableObject {
     deinit {
         fileWatcher?.cancel()
     }
+    
+    
+    func performSearch() {
+        searchResults = logLines.enumerated()
+            .filter { $0.element.localizedCaseInsensitiveContains(searchTerm) }
+            .map { $0.offset }
+    }
+    
+    func nextSearchResult() {
+        guard !searchResults.isEmpty else { return }
+        currentSearchIndex = (currentSearchIndex + 1) % searchResults.count
+    }
+    
+    func previousSearchResult() {
+        guard !searchResults.isEmpty else { return }
+        currentSearchIndex = (currentSearchIndex - 1 + searchResults.count) % searchResults.count
+    }
 }
 
 
 public struct ConsoleLogView: View {
     
     @ObservedObject var viewModel: ConsoleLogViewModel
-    @State private var isAtBottom: Bool = true
-//    private let linesToShow: Int = 100  // Number of lines to show at once
     @State private var scrollToBottom: Bool = false  // State variable to trigger scroll
+    @State private var searchBarState: Bool = false
+    @FocusState private var isSearchFieldFocused: Bool
+    
+    @State private var searchText: String = ""
+    @State private var scrollToIndex: Int?
+    
+    private let resultHighlightColor = Color.orange
+    private let resultHighlightOpacity = 0.5
+    private let otherResultsColor = Color.yellow
+    private let otherResultsOpacity = 0.3
 
     init(logURL: URL) {
         self.viewModel = ConsoleLogViewModel(logURL: logURL)
@@ -63,12 +92,24 @@ public struct ConsoleLogView: View {
     
     public var body: some View {
        VStack {
+           
            // Custom Header Bar (similar to QuickLook's preview screen)
            HStack {
                Text("Console Log")
                    .font(.system(size: 22, weight: .semibold))
                    .foregroundColor(.white)
                Spacer()
+               
+               if(!searchBarState){
+                   SwiftUI.Button(action: {
+                       searchBarState.toggle()
+                   }) {
+                       Image(systemName: "magnifyingglass")
+                           .foregroundColor(.white)
+                           .imageScale(.large)
+                   }
+                   .padding(.trailing)
+               }
                SwiftUI.Button(action: {
                    scrollToBottom.toggle()
                }) {
@@ -87,18 +128,87 @@ public struct ConsoleLogView: View {
                    .foregroundColor(Color.gray.opacity(0.2)), alignment: .bottom
            )
 
+           if(searchBarState){
+               // Search bar
+              HStack {
+                  Image(systemName: "magnifyingglass")
+                      .foregroundColor(.gray)
+                      .padding(.trailing, 4)
+
+                  TextField("Search", text: $searchText)
+                      .textFieldStyle(RoundedBorderTextFieldStyle())
+                      .onChange(of: searchText) { newValue in
+                          viewModel.searchTerm = newValue
+                          viewModel.performSearch()
+                      }
+                      .keyboardShortcut("f", modifiers: .command) // Focus search field
+                  
+                  if !searchText.isEmpty {
+                      // Search navigation buttons
+                      SwiftUI.Button(action: {
+                          viewModel.previousSearchResult()
+                          scrollToIndex = viewModel.searchResults[viewModel.currentSearchIndex]
+                      }) {
+                          Image(systemName: "chevron.up")
+                      }
+                      .keyboardShortcut(.return, modifiers: [.command, .shift])
+                      .disabled(viewModel.searchResults.isEmpty)
+                      
+                      SwiftUI.Button(action: {
+                          viewModel.nextSearchResult()
+                          scrollToIndex = viewModel.searchResults[viewModel.currentSearchIndex]
+                      }) {
+                          Image(systemName: "chevron.down")
+                      }
+                      .keyboardShortcut(.return, modifiers: .command)
+                      .disabled(viewModel.searchResults.isEmpty)
+
+                      // Results counter
+                      Text("\(viewModel.currentSearchIndex + 1)/\(viewModel.searchResults.count)")
+                          .foregroundColor(.gray)
+                          .font(.caption)
+                  }
+                  
+                  SwiftUI.Button(action: {
+                      searchBarState.toggle()
+                  }) {
+                      Image(systemName: "xmark")
+                  }
+              }
+              .padding(.horizontal, 15)
+           }
+
+           
+
            // Main Log Display (scrollable area)
             ScrollView(.vertical) {
-               ScrollViewReader { scrollViewProxy in
+                ScrollViewReader { proxy in
                     LazyVStack(alignment: .leading, spacing: 4) {
                         ForEach(viewModel.logLines.indices, id: \.self) { index in
                             Text(viewModel.logLines[index])
                                 .font(.system(size: 12, design: .monospaced))
                                 .foregroundColor(.white)
+                                .background(
+                                    viewModel.searchResults.contains(index) ?
+                                    otherResultsColor.opacity(otherResultsOpacity) : Color.clear
+                                )
+                                .background(
+                                    viewModel.searchResults[safe: viewModel.currentSearchIndex] == index ?
+                                    resultHighlightColor.opacity(resultHighlightOpacity) : Color.clear
+                                )
+                        }
+                    }
+                    .onChange(of: scrollToIndex) { newIndex in
+                        if let index = newIndex {
+                            withAnimation {
+                                proxy.scrollTo(index, anchor: .center)
+                            }
                         }
                     }
                     .onChange(of: scrollToBottom) { _ in
-                       scrollToBottomIfNeeded(scrollViewProxy: scrollViewProxy)
+                        viewModel.logLines.indices.last.map { last in
+                            proxy.scrollTo(last, anchor: .bottom)
+                        }
                     }
                 }
             }
@@ -106,18 +216,11 @@ public struct ConsoleLogView: View {
         .background(Color.black)  // Set background color to mimic QL's dark theme
         .edgesIgnoringSafeArea(.all)
     }
+}
 
-    // Scroll to the last index (bottom) only if logLines is not empty
-    private func scrollToBottomIfNeeded(scrollViewProxy: ScrollViewProxy) {
-        // Ensure we have log data before attempting to scroll
-        guard !viewModel.logLines.isEmpty else {
-            return
-        }
-        
-        let last    = viewModel.logLines.count - 1
-        let lastIdx = viewModel.logLines.indices.last
-        assert(last == lastIdx)
-//        scrollViewProxy.scrollTo(lastIdx, anchor: .bottom)
-        scrollViewProxy.scrollTo(last, anchor: .bottom)
+// Helper extension for safe array access
+extension Array {
+    subscript(safe index: Index) -> Element? {
+        indices.contains(index) ? self[index] : nil
     }
 }