From f656d00271e6fe6a17b6b84bcf244f72af613f1d Mon Sep 17 00:00:00 2001
From: SeoDongWook <onec555@gmail.com>
Date: Mon, 19 Dec 2022 11:21:40 +0900
Subject: [PATCH 1/3] =?UTF-8?q?=EC=B5=9C=EC=B4=88=20=EC=BB=A4=EB=B0=8B?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .DS_Store                                       | Bin 0 -> 6148 bytes
 .../UserInterfaceState.xcuserstate              | Bin 0 -> 11550 bytes
 .../xcschemes/xcschememanagement.plist          |  14 ++++++++++++++
 3 files changed, 14 insertions(+)
 create mode 100644 .DS_Store
 create mode 100644 Git_ Exercise.xcodeproj/project.xcworkspace/xcuserdata/dongwookseo.xcuserdatad/UserInterfaceState.xcuserstate
 create mode 100644 Git_ Exercise.xcodeproj/xcuserdata/dongwookseo.xcuserdatad/xcschemes/xcschememanagement.plist

diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 0000000000000000000000000000000000000000..973a28c365e69be05bee79a869503ef18cc1dd49
GIT binary patch
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literal 0
HcmV?d00001

diff --git a/Git_ Exercise.xcodeproj/project.xcworkspace/xcuserdata/dongwookseo.xcuserdatad/UserInterfaceState.xcuserstate b/Git_ Exercise.xcodeproj/project.xcworkspace/xcuserdata/dongwookseo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000000000000000000000000000000000000..9fce606f842257bd39e6433a04bf111b74392fed
GIT binary patch
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literal 0
HcmV?d00001

diff --git a/Git_ Exercise.xcodeproj/xcuserdata/dongwookseo.xcuserdatad/xcschemes/xcschememanagement.plist b/Git_ Exercise.xcodeproj/xcuserdata/dongwookseo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..9cab2b7
--- /dev/null
+++ b/Git_ Exercise.xcodeproj/xcuserdata/dongwookseo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>Git_ Exercise.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>

From 2cc0d2871c2023ae9deb709bb239a5150306ad1f Mon Sep 17 00:00:00 2001
From: SeoDongWook <onec555@gmail.com>
Date: Mon, 19 Dec 2022 11:42:01 +0900
Subject: [PATCH 2/3] make Datamanager

---
 .DS_Store                                     | Bin 6148 -> 6148 bytes
 .../UserInterfaceState.xcuserstate            | Bin 11550 -> 12699 bytes
 Git_ Exercise/main.swift                      | 164 +++++++++++++++++-
 3 files changed, 163 insertions(+), 1 deletion(-)

diff --git a/.DS_Store b/.DS_Store
index 973a28c365e69be05bee79a869503ef18cc1dd49..508ad534507a8bcb89d602d92be4bf64e3137b2c 100644
GIT binary patch
delta 29
lcmZoMXffE}!^Bi@cCsJS8O95n6`7y0Ol)A=%+B$b9{{6$3d{fi

delta 29
lcmZoMXffE}!^D&mFxijk4C8^#ip<YgCN{8bX6N|J4*-~j3OfJ*

diff --git a/Git_ Exercise.xcodeproj/project.xcworkspace/xcuserdata/dongwookseo.xcuserdatad/UserInterfaceState.xcuserstate b/Git_ Exercise.xcodeproj/project.xcworkspace/xcuserdata/dongwookseo.xcuserdatad/UserInterfaceState.xcuserstate
index 9fce606f842257bd39e6433a04bf111b74392fed..c57fb8c0bcc17242e8d403bfec0582a12a05b2fa 100644
GIT binary patch
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diff --git a/Git_ Exercise/main.swift b/Git_ Exercise/main.swift
index 986559b..7702c78 100644
--- a/Git_ Exercise/main.swift	
+++ b/Git_ Exercise/main.swift	
@@ -7,5 +7,167 @@
 
 import Foundation
 
-print("Hello, World!")
+final class DataManager {
+    
+    private let defaults = UserDefaults.standard
+    
+    /// students: [ name : [ subject : point ]
+    var students : [String:[String:String]] = [:]
+    private let grades: [String:Double] = [ "A+":4.5, "A0":4, "B+":3.5, "B0":3, "C+":2.5, "C0":2, "D+":1.5, "D0":1, "F":0]
+    
+
+    func setStoredData() {
+        
+        let storedData = defaults.dictionary(forKey: "studentsData")
+        
+        if storedData?.count != nil { students = storedData as! [String:[String:String]] }
+        else { students = [:] }
+    }
+    
+    func saveData() {
+        defaults.set(students, forKey: "studentsData")
+        UserDefaults.standard.synchronize()
+    }
+    
+    func convertGradeToPoint(grade: String) -> Double?{
+        
+        if let point = grades[grade]{
+            return point
+        }
+        print(#function)
+        print("⚠️ Error: convert fail")
+        return nil
+    }
+    
+    
+    ///이름 체크 -> 결과에 따라 함수분기 : readLine 입력 받은 후 사용할 것
+    ///trueAction : 학생이름 있을때 액션     /  falseAction : 학생이름이 없을때 액션
+    func nameCheckAndAction(name: String?, trueAction: (_ name: String) -> Void, falseAction: (_ name: String) -> Void) {
+        
+        guard let name else { print("⚠️ 입력이 잘못되었습니다. 다시 확인해주세요."); return }
+        let studentName = name.trimmingCharacters(in: .whitespaces).firstUppercased
+        
+        if studentName.isEmpty {
+            print("⚠️ 입력이 없습니다. 다시 확인해주세요.")
+            return
+        }
+        if students.contains(where: { (key: String, value: [String:String]) in
+            return key == studentName
+        }){
+            trueAction(studentName)
+            return
+        }else{
+            falseAction(studentName)
+            return
+        }
+    }
+    
+    //학생추가
+    func addStudent(){
+        print("추가할 학생의 이름을 입력해주세요.")
+        let studentName: String? = readLine()
+        
+        nameCheckAndAction(name: studentName) { name in
+            print("⚠️ \(name)은 이미 존재하는 학생입니다. 추가하지 않습니다.")
+        } falseAction: { name in
+            students[name] = .init([:])
+            print("✅ \(name) 학생을 추가했습니다.")
+        }
+    }
+    
+    //학생삭제
+    func deleteStudent(){
+        print("삭제할 학생의 이름을 입력해주세요.")
+        let studentName: String? = readLine()
+        
+        nameCheckAndAction(name: studentName) { name in
+            students[name] = nil
+            print("✅  \(name) 학생을 삭제하였습니다.")
+        } falseAction: { name in
+            print("⚠️ \(name) 학생을 찾지 못했습니다.")
+        }
+    }
+    
+    //성적추가(변경)
+    func updateGrades(){
+        print("성적을 추가할 학생의 이름, 과목 이름, 성적(A+, A, F 등)을 띄어쓰기로 구분하여 차례로 작성해 주세요.\n입력예) Mickey Swift A+")
+        let inputData = readLine()
+        guard let inputData else { print("⚠️ 입력이 잘못되었습니다. 다시 확인해주세요."); return }
+        let studentData = inputData.split(separator: " ")
+        if studentData.count < 3 {
+            print("⚠️ 입력이 잘못되었습니다. 다시 확인해주세요.")
+            return
+        }
+        
+        let name = String(studentData[0])
+        let subject = String(studentData[1]).firstUppercased
+        let grade = String(studentData[2]).firstUppercased
+        
+        if !grades.keys.contains(grade){
+            print("⚠️ 잘못된 점수를 입력했습니다. 다시 확인해주세요.")
+            return
+        }
+        
+        print("[✅  \(name) 학생의 \(subject) 과목이 \(grade)로 추가(변경) 되었습니다. ]")
+        nameCheckAndAction(name: name) { name in
+            students[name]?.updateValue(grade, forKey: subject)
+        } falseAction: { name in
+            print("⚠️ \(name) 학생을 찾지 못했습니다.")
+        }
+    }
+    
+    //성적삭제
+    func deleteGrade(){
+        print("성적을 삭제할 학생의 이름, 과목 이름을 띄어쓰기로 구분하여 차례로 작성해주세요.\n입력예) Mickey Swift")
+        let inputData = readLine()
+        guard let inputData else { print("⚠️ 입력이 잘못되었습니다. 다시 확인해주세요."); return }
+        let studentData = inputData.split(separator: " ")
+        if studentData.count < 2 { print("⚠️ 입력이 잘못되었습니다. 다시 확인해주세요."); return }
+        
+        let name = String(studentData[0]).firstUppercased
+        let subject = String(studentData[1]).firstUppercased
+        
+        print("✅ \(name) 학생의 \(subject) 과목의 성적이 삭제되었습니다.")
+        nameCheckAndAction(name: name) { name in
+            students[name]?.removeValue(forKey: subject)
+        } falseAction: { name in
+            print("⚠️ \(name) 학생을 찾지 못했습니다.")
+        }
+    }
+    
+    //평점보기
+    func getCredit(){
+        print("평점을 알고싶은 학생의 이름을 입력해주세요.")
+        let inputData = readLine()
+        nameCheckAndAction(name: inputData) { name in
+            let datas = students[name]?.compactMap({ (key: String, value: String) in
+                return (key, value)
+            })
+            var totalPoint = 0.0
+            if datas?.count != 0 {
+                datas?.forEach{ data in
+                    print("\(data.0): \(data.1)")
+                    if let point = convertGradeToPoint(grade: data.1){
+                        totalPoint += point
+                    }
+                }
+                
+                totalPoint = totalPoint/Double(datas!.count)
+                let credit = String(format: "%.2f", totalPoint).trimmingCharacters(in: ["0","."])
+                print("✅ 평점: \(credit)")
+            } else {
+                print("⚠️ 학생의 성적이 없습니다.")
+            }
+            
+        } falseAction: { name in
+            print("⚠️ \(name) 학생을 찾지 못했습니다.")
+        }
+    }
+}
+
+
+extension StringProtocol {
+    var firstUppercased: String { return prefix(1).uppercased() + dropFirst() }
+    var firstCapitalized: String { return prefix(1).capitalized + dropFirst() }
+}
 

From ffe4178fa4b6bdf8c1db5d6054fdee0e51c35090 Mon Sep 17 00:00:00 2001
From: SeoDongWook <onec555@gmail.com>
Date: Mon, 19 Dec 2022 11:44:16 +0900
Subject: [PATCH 3/3] make main loop

---
 .DS_Store                                     | Bin 6148 -> 6148 bytes
 .../UserInterfaceState.xcuserstate            | Bin 12699 -> 12735 bytes
 Git_ Exercise/main.swift                      |  48 ++++++++++++++++++
 3 files changed, 48 insertions(+)

diff --git a/.DS_Store b/.DS_Store
index 508ad534507a8bcb89d602d92be4bf64e3137b2c..e8116ce9dfc8820a37f4ac1c5981a4e236f11004 100644
GIT binary patch
delta 14
VcmZoMXffE}%f$F`vmetoQ2-}~1t<Uj

delta 14
VcmZoMXffE}%fxtgvmetoQ2-{c1q1*9

diff --git a/Git_ Exercise.xcodeproj/project.xcworkspace/xcuserdata/dongwookseo.xcuserdatad/UserInterfaceState.xcuserstate b/Git_ Exercise.xcodeproj/project.xcworkspace/xcuserdata/dongwookseo.xcuserdatad/UserInterfaceState.xcuserstate
index c57fb8c0bcc17242e8d403bfec0582a12a05b2fa..39c230dbfdacec111e4ecb67613c6604c71b53f9 100644
GIT binary patch
delta 4605
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diff --git a/Git_ Exercise/main.swift b/Git_ Exercise/main.swift
index 7702c78..163501e 100644
--- a/Git_ Exercise/main.swift	
+++ b/Git_ Exercise/main.swift	
@@ -171,3 +171,51 @@ extension StringProtocol {
     var firstCapitalized: String { return prefix(1).capitalized + dropFirst() }
 }
 
+
+
+
+let dataManager = DataManager()
+dataManager.setStoredData()
+runProgram()
+
+func runProgram() {
+
+    print("\n\n원하는 기능을 입력해주세요.\n| 1: 학생추가 | 2: 학생삭제 | 3: 성적추가(변경) | 4: 성적삭제 | 5: 평점보기 | X: 종료 |")
+    
+    let userInput: String? = readLine()?.lowercased()
+    
+    switch userInput {
+    case "1":
+        print("[ 학생추가 ]")
+        dataManager.addStudent()
+        runProgram()
+        
+    case "2":
+        print("[ 학생삭제 ]")
+        dataManager.deleteStudent()
+        runProgram()
+        
+    case "3":
+        print("[ 성적추가(변경) ]")
+        dataManager.updateGrades()
+        runProgram()
+        
+    case "4":
+        print("[ 성적삭제 ]")
+        dataManager.deleteGrade()
+        runProgram()
+        
+    case "5":
+        print("[ 평점보기 ]")
+        dataManager.getCredit()
+        runProgram()
+        
+    case "x":
+        dataManager.saveData()
+        print("🍕 프로그램을 종료합니다..")
+   
+    default:
+        print("⚠️ 뭔가 입력이 잘못되었습니다. 1~5 사이의 숫자 혹은 X를 입력해주세요.")
+        runProgram()
+    }
+}