From 12de7b7c2b42348905333c9ea19ff5a66da1e8e6 Mon Sep 17 00:00:00 2001 From: KSK9820 <68066104+KSK9820@users.noreply.github.com> Date: Tue, 5 Sep 2023 11:00:05 +0900 Subject: [PATCH] =?UTF-8?q?feat:=20SeSAC=20=EC=82=AC=EC=A0=84=20=EA=B3=BC?= =?UTF-8?q?=EC=A0=9C=20=EC=97=85=EB=A1=9C=EB=93=9C?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .DS_Store | Bin 0 -> 6148 bytes .../project.pbxproj | 312 ++++++++++++++++++ .../contents.xcworkspacedata | 7 + .../xcshareddata/IDEWorkspaceChecks.plist | 8 + .../UserInterfaceState.xcuserstate | Bin 0 -> 8385 bytes .../xcschemes/xcschememanagement.plist | 14 + MyCreditManager_2_rlatnrud9820/.DS_Store | Bin 0 -> 6148 bytes MyCreditManager_2_rlatnrud9820/main.swift | 262 +++++++++++++++ 8 files changed, 603 insertions(+) create mode 100644 .DS_Store create mode 100644 MyCreditManager_2_rlatnrud9820.xcodeproj/project.pbxproj create mode 100644 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+// + +import Foundation + + +enum WrongInput: Error, CustomDebugStringConvertible { + + case menuWrongInput + case commonWrongInput + case duplicatedInput(name: String) + case nonExistentInput(name: String) + case nonExistentSubject(name: String, subject: String) + + var debugDescription: String { + switch self { + case .menuWrongInput: + return "뭔가 입력이 잘못되었습니다. 1~5 사이의 숫자 혹은 X를 입력해주세요." + case .commonWrongInput: + return "입력이 잘못되었습니다. 다시 확인해주세요." + case .duplicatedInput(let name): + return "\(name)은 이미 존재하는 학생입니다. 추가하지 않습니다." + case .nonExistentInput(let name): + return "\(name) 학생을 찾지 못했습니다." + case .nonExistentSubject(let name, let subject): + return "\(name) 학생의 \(subject) 성적을 찾지 못했습니다." + default: + return "입력이 잘못되었습니다. 다시 확인해주세요." + } + } + +} + + +struct Subject : Codable{ + let subject: String + var grade: String +} + +struct Student : Codable{ + var data: [String: [Subject]] +} + + +class MyCreditManager{ + var isRunning = true + var student: [String: [Subject]] = [:] + + + func run(){ + + let stu: Student = loadJsonFile() ?? Student(data: [:]) + student = stu.data + + + while (isRunning){ + switch self.menu() { + case "1": + do { try addStudent() } catch { + print(error) + } + case "2": + do { try deleteStudent() } catch { + print(error) + } + case "3": + do { try changeGrade() } catch { + print(error) + } + case "4": + do { try deleteGrade() } catch { + print(error) + } + case "5": + do { try viewGrade() } catch { + print(error) + } + case "X": + exitProgram() + default: + do { try ErrorMessage() } catch{ + print(error) + } + } + } + } + + + private func menu() -> String { + print("원하는 기능을 입력해주세요.\n1: 학생추가, 2: 학생삭제, 3: 성적추가(변경), 4: 성적삭제, 5: 평점보기, X: 종료") + return readLine() ?? "0" + } + + private func addStudent() throws { + print("추가할 학생의 이름을 입력해주세요") + + guard let name = readLine(), + !name.isEmpty, name.trimmingCharacters(in: [" "]).count != 0 else { + throw WrongInput.commonWrongInput + } + if let _ = student[name]{ + throw WrongInput.duplicatedInput(name: name) + } + + student[name] = [Subject]() + print("\(name) 학생을 추가했습니다.") + } + + private func deleteStudent() throws { + print("삭제할 학생의 이름을 입력해주세요") + + guard let name = readLine(), + !name.isEmpty, name.trimmingCharacters(in: [" "]).count != 0 else { + throw WrongInput.commonWrongInput + } + + if student[name] == nil { + throw WrongInput.nonExistentInput(name: name) + } + + student[name] = nil + print("\(name) 학생을 삭제하였습니다.") + } + + private func changeGrade() throws { + print("성적을 추가할 학생의 이름, 과목 이름, 성적(A+, A, F 등)을 띄어쓰기로 구분하여 차례로 작성해주세요.\n입력예) Mickey Swift A+\n만약에 학생의 성적 중 해당 과목이 존재한다면 기존 점수가 갱신됩니다.") + + guard let input = readLine(), + !input.isEmpty, input.trimmingCharacters(in: [" "]).count != 0, input.split(separator: " ").count == 3 else { + throw WrongInput.commonWrongInput + } + + let inputArr = input.split(separator: " ").map { String($0) } + let (name, subject, grade) = (inputArr[0], inputArr[1], inputArr[2]) + if student[name] == nil { + throw WrongInput.nonExistentInput(name: name) + } + + if let hadSubject = student[name]?.firstIndex(where: { $0.subject == subject }) { + student[name]?.remove(at: hadSubject) + student[name]?.append(Subject(subject: subject, grade: grade)) + }else{ + student[name]?.append(Subject(subject: subject, grade: grade)) + } + + print("\(name) 학생의 \(subject) 과목이 \(grade)로 추가(변경)되었습니다.") + } + + private func deleteGrade() throws{ + print("성적을 삭제할 학생의 이름, 과목 이름을 띄어쓰기로 구분하여 차례로 작성해주세요.\n입력예) Mickey Swift") + + guard let input = readLine(), + !input.isEmpty, input.trimmingCharacters(in: [" "]).count != 0, input.split(separator: " ").count == 2 else { + throw WrongInput.commonWrongInput + } + let inputArr = input.split(separator: " ").map { String($0) } + let (name, subject) = (inputArr[0], inputArr[1]) + + if student[name] == nil { + throw WrongInput.nonExistentInput(name: name) + }else{ + if let hadSubject = student[name]?.firstIndex(where: { $0.subject == subject }) { + student[name]?.remove(at: hadSubject) + print("\(name) 학생의 \(subject) 과목의 성적이 삭제되었습니다.") + }else{ + throw WrongInput.nonExistentSubject(name: name, subject: subject) + } + } + } + + private func viewGrade() throws { + print("평점을 알고싶은 학생의 이름을 입력해주세요") + + guard let name = readLine(), + !name.isEmpty, name.trimmingCharacters(in: [" "]).count != 0 else { + throw WrongInput.commonWrongInput + } + if student[name] == nil { + throw WrongInput.nonExistentInput(name: name) + } + + for subj in student[name]! { + print("\(subj.subject): \(subj.grade)") + } + + print("평점: \(String(format: "%.2f", gradeCalculator(grade: student[name]!)) )") + } + + private func exitProgram(){ + isRunning = false + saveJsonData(data: Student(data: student)) + print("프로그램을 종료합니다...") + } + + private func ErrorMessage() throws{ + throw WrongInput.menuWrongInput + } + + func gradeCalculator(grade: [Subject]) -> Double { + let score = ["A+": 4.5, "A": 4.0, "B+": 3.5, "B": 3.0, "C+": 2.5, "C": 2.0, "D+": 1.5, "D": 1.0] + return grade.map{ score[$0.grade] ?? 0.0 }.reduce(0.0, +) / Double(grade.count) + } + + + + + func saveJsonData(data:Student) { + let jsonEncoder = JSONEncoder() + + do { + let encodedData = try jsonEncoder.encode(data) + + guard let documentDirectoryUrl = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first else { return } + let fileURL = documentDirectoryUrl.appendingPathComponent("SeSAC_rlatnrud9820.json") + + do { + try encodedData.write(to: fileURL) + } + catch let error as NSError { + print(error) + } + + } catch { + print(error) + } + + } + + + func loadJsonFile() -> Student?{ + let jsongDecoder = JSONDecoder() + + do { + guard let documentDirectoryUrl = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first else { return nil} + + let fileURL = documentDirectoryUrl.appendingPathComponent("SeSAC_rlatnrud9820.json") + + do { + if !FileManager.default.fileExists(atPath: fileURL.path) { + try FileManager.default.createFile(atPath: fileURL.pathExtension, contents: nil) + return nil + } + } catch { + print("create folder error. do something") + } + + let jsonData = try Data(contentsOf: fileURL, options: .mappedIfSafe) + let decodedStudent = try jsongDecoder.decode(Student.self, from: jsonData) + return decodedStudent + } + catch { + print(error) + return nil + } + } +} + +MyCreditManager().run()