[#10] 버스 검색 기능 구현

TMT/TMT.xcodeproj/project.pbxproj

@@ -12,6 +12,9 @@
 		D86739712CA933CE00FFE8ED /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = D86739702CA933CE00FFE8ED /* Assets.xcassets */; };
 		D86739742CA933CE00FFE8ED /* Preview Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = D86739732CA933CE00FFE8ED /* Preview Assets.xcassets */; };
 		D8D377E62CBE549F0043D103 /* BusStopData.csv in Resources */ = {isa = PBXBuildFile; fileRef = D8D377E52CBE549F0043D103 /* BusStopData.csv */; };
+		D8D377E92CBE95C30043D103 /* BusSearchModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = D8D377E82CBE95C30043D103 /* BusSearchModel.swift */; };
+		D8D377EB2CBE95CA0043D103 /* BusSearchViewModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = D8D377EA2CBE95CA0043D103 /* BusSearchViewModel.swift */; };
+		D8D377ED2CBE95D10043D103 /* BusSearchView.swift in Sources */ = {isa = PBXBuildFile; fileRef = D8D377EC2CBE95D10043D103 /* BusSearchView.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
@@ -21,6 +24,9 @@
 		D86739702CA933CE00FFE8ED /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
 		D86739732CA933CE00FFE8ED /* Preview Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = "Preview Assets.xcassets"; sourceTree = "<group>"; };
 		D8D377E52CBE549F0043D103 /* BusStopData.csv */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = BusStopData.csv; sourceTree = "<group>"; };
+		D8D377E82CBE95C30043D103 /* BusSearchModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BusSearchModel.swift; sourceTree = "<group>"; };
+		D8D377EA2CBE95CA0043D103 /* BusSearchViewModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BusSearchViewModel.swift; sourceTree = "<group>"; };
+		D8D377EC2CBE95D10043D103 /* BusSearchView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BusSearchView.swift; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -55,6 +61,7 @@
 			children = (
 				D867396C2CA933CD00FFE8ED /* TMTApp.swift */,
 				D867396E2CA933CD00FFE8ED /* ContentView.swift */,
+				D8D377E72CBE95B80043D103 /* BusSearch */,
 				D8D377E42CBE548F0043D103 /* Resource */,
 				D86739702CA933CE00FFE8ED /* Assets.xcassets */,
 				D86739722CA933CE00FFE8ED /* Preview Content */,
@@ -78,6 +85,16 @@
 			path = Resource;
 			sourceTree = "<group>";
 		};
+		D8D377E72CBE95B80043D103 /* BusSearch */ = {
+			isa = PBXGroup;
+			children = (
+				D8D377E82CBE95C30043D103 /* BusSearchModel.swift */,
+				D8D377EA2CBE95CA0043D103 /* BusSearchViewModel.swift */,
+				D8D377EC2CBE95D10043D103 /* BusSearchView.swift */,
+			);
+			path = BusSearch;
+			sourceTree = "<group>";
+		};
 /* End PBXGroup section */
 
 /* Begin PBXNativeTarget section */
@@ -149,8 +166,11 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				D8D377E92CBE95C30043D103 /* BusSearchModel.swift in Sources */,
 				D867396F2CA933CD00FFE8ED /* ContentView.swift in Sources */,
 				D867396D2CA933CD00FFE8ED /* TMTApp.swift in Sources */,
+				D8D377EB2CBE95CA0043D103 /* BusSearchViewModel.swift in Sources */,
+				D8D377ED2CBE95D10043D103 /* BusSearchView.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

TMT/TMT/BusSearch/BusSearchModel.swift

@@ -0,0 +1,16 @@
+//
+//  BusSearchModel.swift
+//  TMT
+//
+//  Created by 김유빈 on 10/15/24.
+//
+
+struct BusStopInfo: Codable {
+    var busNumber: String? // 노선명 (버스번호)
+    var busType: Int? // 버스 타입
+    var stopOrder: Int? // 순번
+    var stopName: String? // 정류소명 (한글)
+    var romanizedStopName: String? // 정류소명 (로마자 표기)
+    var xCoordinate: String? // x좌표
+    var yCoordinate: String? // y좌표
+}

TMT/TMT/BusSearch/BusSearchView.swift

@@ -0,0 +1,18 @@
+//
+//  BusSearchView.swift
+//  TMT
+//
+//  Created by 김유빈 on 10/15/24.
+//
+
+import SwiftUI
+
+struct BusSearchView: View {
+    var body: some View {
+        Text(/*@START_MENU_TOKEN@*/"Hello, World!"/*@END_MENU_TOKEN@*/)
+    }
+}
+
+#Preview {
+    BusSearchView()
+}

TMT/TMT/BusSearch/BusSearchViewModel.swift

@@ -0,0 +1,75 @@
+//
+//  BusSearchViewModel.swift
+//  TMT
+//
+//  Created by 김유빈 on 10/15/24.
+//
+
+import Foundation
+
+final class BusStopSearchViewModel: ObservableObject {
+    @Published var busStops: [BusStopInfo] = []
+    @Published var filteredBusStops: [BusStopInfo] = []
+    @Published var busNumbers = [Int]()
+
+    init() {
+        loadCSV()
+    }
+
+    private func loadCSV() {
+        Task {
+            guard let filepath = Bundle.main.path(forResource: "BusStopData", ofType: "csv") else {
+                print("Error \(#function) in \(#file) :: CSV file not found")
+                return
+            }
+            do {
+                let content = try String(contentsOfFile: filepath)
+
+                let response = content.components(separatedBy: "\n")
+
+                let searchResponse = response.map { $0.components(separatedBy: ",")}
+
+                await self.apply(searchResponse)
+
+            } catch {
+                print("Error \(#function) in \(#file)")
+            }
+        }
+    }
+
+    @MainActor
+    private func apply(_ searchResponse: [[String]]) {
+        for response in searchResponse {
+            self.busStops.append(BusStopInfo(busNumber: response[0].isEmpty ? nil : response[0],
+                                             busType: response[1].isEmpty ? nil : Int(response[1]),
+                                             stopOrder: response[2].isEmpty ? nil : Int(response[2]),
+                                             stopName: response[3].isEmpty ? nil : response[3],
+                                             romanizedStopName: response[4].isEmpty ? nil : response[4],
+                                             xCoordinate: response[5].isEmpty ? nil : response[5],
+                                             yCoordinate: response[6].isEmpty ? nil : String(response[6].dropLast(1))))
+        }
+    }
+
+    func searchBusStops(by number: String) {
+        filteredBusStops = busStops.filter { busStop in
+            if let busNumber = busStop.busNumber {
+                return busNumber.hasPrefix(number)
+            }
+            return false
+        }
+
+        fetchBusNumbersList()
+    }
+
+    /// 검색 결과 배열에는 노선 전체 데이터가 담겨 있어 동일한 버스 번호를 가진 데이터가 많습니다.
+    /// 사용자에게 보여줄 때는 중복된 데이터를 제외하고, 버스 번호만 추출해서 보여줘야 합니다.
+    /// 사용자가 검색한 버스 번호를 추출하여 결과로 보여주기 위해 버스 번호만 추출하기 위해 만든 함수입니다.
+    private func fetchBusNumbersList() {
+        busNumbers = Array(Set(filteredBusStops.compactMap { busStop in
+            if let busNumberString = busStop.busNumber, let busNumber = Int(busNumberString) {
+                return busNumber
+            }
+            return nil
+        }))
+    }
+}