[Feature] 영화 검색 구현

MovieBooking/Domain/Entity/Movie.swift

@@ -7,7 +7,7 @@
 
 import Foundation
 
-public struct Movie: Identifiable, Equatable {
+public struct Movie: Identifiable, Equatable, Hashable {
   public let id: Int
   public let title: String
   public let overview: String

MovieBooking/Feature/Search/MovieSearchFeature.swift

@@ -0,0 +1,60 @@
+//
+//  MovieSearchFeature.swift
+//  MovieBooking
+//
+//  Created by 김민희 on 10/16/25.
+//
+
+import ComposableArchitecture
+import Foundation
+
+@Reducer
+struct MovieSearchFeature {
+  @ObservableState
+  struct State: Equatable {
+    var nowPlayingMovies: [Movie] = []
+    var upcomingMovies: [Movie] = []
+    var popularMovies: [Movie] = []
+    var searchText: String = ""
+  }
+
+  enum Action: BindableAction {
+    case updateMovieLists(nowPlaying: [Movie], upcoming: [Movie], popular: [Movie])
+    case binding(BindingAction<State>)
+  }
+
+  var body: some Reducer<State, Action> {
+    BindingReducer()
+    Reduce { state, action in
+      switch action {
+      case let .updateMovieLists(nowPlaying, upcoming, popular):
+        state.nowPlayingMovies = nowPlaying
+        state.upcomingMovies = upcoming
+        state.popularMovies = popular
+        return .none
+
+      case .binding:
+        return .none
+      }
+    }
+  }
+}
+
+
+extension MovieSearchFeature.State {
+  var trimmedKeyword: String {
+    searchText.trimmingCharacters(in: .whitespacesAndNewlines)
+  }
+
+  var aggregatedMovies: [Movie] {
+    Array(Set(nowPlayingMovies + upcomingMovies + popularMovies))
+  }
+
+  var filteredMovies: [Movie] {
+    guard !trimmedKeyword.isEmpty else { return [] }
+
+    return aggregatedMovies.filter {
+      $0.title.localizedCaseInsensitiveContains(trimmedKeyword)
+    }
+  }
+}

MovieBooking/Feature/Search/MovieSearchView.swift

@@ -6,20 +6,42 @@
 //
 
 import SwiftUI
+import ComposableArchitecture
 
 struct MovieSearchView: View {
-  @State private var searchText = ""
+  @Perception.Bindable var store: StoreOf<MovieSearchFeature>
 
   var body: some View {
-    VStack(spacing: 20) {
-      SearchBar(text: $searchText)
+    WithPerceptionTracking {
+      VStack(spacing: 0) {
+        SearchBar(text: $store.searchText)
+          .padding(.bottom, 20)
 
-      SearchView(movies: Movie.mockData)
+        Group {
+          if store.trimmedKeyword.isEmpty {
+            EmptySearchView()
+          } else {
+            SearchView(movies: store.filteredMovies)
+          }
+        }
+        .frame(maxHeight: .infinity)
+      }
+      .padding(.top, 20)
+      .padding(.horizontal, 20)
     }
-    .padding(.horizontal, 20)
   }
 }
 
 #Preview {
-  MovieSearchView()
+  MovieSearchView(
+    store: Store(
+      initialState: MovieSearchFeature.State(
+        nowPlayingMovies: Movie.mockData,
+        upcomingMovies: Movie.mockData,
+        popularMovies: Movie.mockData
+      )
+    ) {
+      MovieSearchFeature()
+    }
+  )
 }