feat: add search and recent queries

Implements: https://todo.sr.ht/~ccleberg/hutch/47
Implements: https://todo.sr.ht/~ccleberg/hutch/48

2 files changed, 85 insertions, 4 deletions

diff --git a/Hutch/Views/Repositories/RepositoryListView.swift b/Hutch/Views/Repositories/RepositoryListView.swift
index d176e4b..f5ca716 100644
--- a/Hutch/Views/Repositories/RepositoryListView.swift
+++ b/Hutch/Views/Repositories/RepositoryListView.swift
@@ -4,6 +4,7 @@ struct RepositoryListView: View {
     @Environment(AppState.self) private var appState
     @State private var viewModel: RepositoryListViewModel?
     @State private var searchTask: Task<Void, Never>?
+    @State private var immediateSearchTask: Task<Void, Never>?
     @State private var showCreateRepositorySheet = false
     @State private var createdRepository: RepositorySummary?
 
@@ -68,6 +69,17 @@ struct RepositoryListView: View {
         @Bindable var vm = viewModel
 
         List {
+            if viewModel.isSearching {
+                HStack(spacing: 12) {
+                    ProgressView()
+                        .controlSize(.small)
+                    Text("Searching repositories…")
+                        .font(.footnote)
+                        .foregroundStyle(.secondary)
+                }
+                .listRowSeparator(.hidden)
+            }
+
             ForEach(viewModel.repositories) { repo in
                 NavigationLink(value: repo) {
                     RepositoryRowView(
@@ -92,7 +104,28 @@ struct RepositoryListView: View {
         }
         .themedList()
         .listStyle(.plain)
-        .searchable(text: $vm.searchText, placement: .navigationBarDrawer(displayMode: .always), prompt: "Search repositories")
+        .searchable(
+            text: $vm.searchText,
+            placement: .navigationBarDrawer(displayMode: .always),
+            prompt: "Search repositories by name, owner, or description"
+        )
+        .searchSuggestions {
+            if viewModel.searchText.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty {
+                RecentSearchSuggestions(
+                    title: "Recent Repository Searches",
+                    entries: viewModel.recentSearches
+                ) { query in
+                    searchTask?.cancel()
+                    immediateSearchTask?.cancel()
+                    vm.searchText = query
+                    immediateSearchTask = Task {
+                        await viewModel.loadRepositories(search: query)
+                    }
+                } onClear: {
+                    viewModel.clearRecentSearches()
+                }
+            }
+        }
         .overlay {
             if viewModel.isLoading, viewModel.repositories.isEmpty {
                 SRHTLoadingStateView(message: "Loading repositories…")
@@ -110,7 +143,11 @@ struct RepositoryListView: View {
                         description: Text("You don't have any repositories yet.")
                     )
                 } else {
-                    ContentUnavailableView.search
+                    ContentUnavailableView(
+                        "No Repository Matches",
+                        systemImage: "magnifyingglass",
+                        description: Text("No repositories matched “\(viewModel.searchText)”.")
+                    )
                 }
             }
         }
@@ -124,9 +161,21 @@ struct RepositoryListView: View {
         .task {
             await viewModel.loadRepositories()
         }
+        .onSubmit(of: .search) {
+            let query = viewModel.searchText.trimmingCharacters(in: .whitespacesAndNewlines)
+            guard !query.isEmpty else { return }
+
+            searchTask?.cancel()
+            immediateSearchTask?.cancel()
+            viewModel.recordRecentSearch(query)
+            immediateSearchTask = Task {
+                await viewModel.loadRepositories(search: query)
+            }
+        }
         .onChange(of: viewModel.searchText) { oldValue, newValue in
             // Cancel previous search task
             searchTask?.cancel()
+            immediateSearchTask?.cancel()
             
             // Clear results immediately when search text is cleared
             if newValue.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty {
diff --git a/Hutch/Views/Repositories/RepositoryListViewModel.swift b/Hutch/Views/Repositories/RepositoryListViewModel.swift
index 7a65441..0cfc8c3 100644
--- a/Hutch/Views/Repositories/RepositoryListViewModel.swift
+++ b/Hutch/Views/Repositories/RepositoryListViewModel.swift
@@ -25,9 +25,11 @@ enum RepositoryCreationService: String, CaseIterable, Identifiable, Sendable {
 @Observable
 @MainActor
 final class RepositoryListViewModel {
+    private static let searchHistoryScopeID = "repositories"
 
     private(set) var repositories: [RepositorySummary] = []
     private(set) var latestBuildStatuses: [String: RepositoryBuildStatus] = [:]
+    private(set) var recentSearches: [ScopedSearchHistoryEntry]
     private(set) var isLoading = false
     private(set) var isLoadingMore = false
     private(set) var isRefreshing = false
@@ -42,6 +44,7 @@ final class RepositoryListViewModel {
     private(set) var hasLoadedSearchIndex = false
     private var searchIndex: [RepositorySummary] = []
     private let client: SRHTClient
+    private let defaults: UserDefaults
     private var buildStatusTask: Task<Void, Never>?
 
     private static let gitCacheKey = "git.repositories"
@@ -49,8 +52,13 @@ final class RepositoryListViewModel {
     private static let buildsCacheKey = "builds.repository-status"
     private static let minimumRemoteSearchLength = 3
 
-    init(client: SRHTClient) {
+    init(client: SRHTClient, defaults: UserDefaults = .standard) {
         self.client = client
+        self.defaults = defaults
+        self.recentSearches = ScopedSearchHistoryStore.load(
+            scopeID: Self.searchHistoryScopeID,
+            defaults: defaults
+        )
     }
 
     // MARK: - Queries
@@ -302,6 +310,26 @@ final class RepositoryListViewModel {
         isSearching = false
     }
 
+    func recordRecentSearch(_ query: String) {
+        ScopedSearchHistoryStore.record(
+            query: query,
+            scopeID: Self.searchHistoryScopeID,
+            defaults: defaults
+        )
+        recentSearches = ScopedSearchHistoryStore.load(
+            scopeID: Self.searchHistoryScopeID,
+            defaults: defaults
+        )
+    }
+
+    func clearRecentSearches() {
+        ScopedSearchHistoryStore.clear(
+            scopeID: Self.searchHistoryScopeID,
+            defaults: defaults
+        )
+        recentSearches = []
+    }
+
     // MARK: - Private
 
     /// Page shape matching the GraphQL response without generic constraints that
@@ -696,9 +724,13 @@ final class RepositoryListViewModel {
     }
 
     static func filterRepositories(_ repositories: [RepositorySummary], matching query: String) -> [RepositorySummary] {
-        let lowercasedQuery = query.lowercased()
+        let lowercasedQuery = query.trimmingCharacters(in: .whitespacesAndNewlines).lowercased()
+        guard !lowercasedQuery.isEmpty else { return repositories }
+
         return repositories.filter { repo in
             repo.name.lowercased().contains(lowercasedQuery) ||
+            repo.owner.canonicalName.lowercased().contains(lowercasedQuery) ||
+            repo.defaultBranchName?.lowercased().contains(lowercasedQuery) ?? false ||
             repo.description?.lowercased().contains(lowercasedQuery) ?? false
         }
     }