Step3 : 업무 중 대기 (리나)

Bank.swift

@@ -34,15 +34,15 @@ final class Bank {
         var isContinue = true
 
         while isContinue {
-            for teller in self.tellers {
-                if self.clients.count == 0 {
+            for teller in tellers {
+                if clients.count == 0 {
                     isContinue = false
                     break
                 }
                 if teller.isNotWorking {
                     let client = clients.removeFirst()
                     teller.handleBusiness(for: client, withDispatchGroup: dispatchGroup)
-                    self.finishedClientCount += 1
+                    finishedClientCount += 1
                 }
             }
         }

BankManagerConsoleApp/BankManagerConsoleApp.xcodeproj/project.pbxproj

@@ -7,6 +7,7 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		4CB8E9BB25A998E300C021F6 /* HeadOffice.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4CB8E9BA25A998E300C021F6 /* HeadOffice.swift */; };
 		4CB8E9C425A99CE000C021F6 /* Dashboard.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4CB8E9C325A99CE000C021F6 /* Dashboard.swift */; };
 		4CDDB11825A422B700EDC9CE /* Teller.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4CDDB11725A422B700EDC9CE /* Teller.swift */; };
 		4CDDB11B25A422CD00EDC9CE /* Client.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4CDDB11A25A422CD00EDC9CE /* Client.swift */; };
@@ -28,6 +29,7 @@
 /* End PBXCopyFilesBuildPhase section */
 
 /* Begin PBXFileReference section */
+		4CB8E9BA25A998E300C021F6 /* HeadOffice.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = HeadOffice.swift; sourceTree = "<group>"; };
 		4CB8E9C325A99CE000C021F6 /* Dashboard.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Dashboard.swift; sourceTree = "<group>"; };
 		4CDDB11725A422B700EDC9CE /* Teller.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Teller.swift; sourceTree = "<group>"; };
 		4CDDB11A25A422CD00EDC9CE /* Client.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Client.swift; sourceTree = "<group>"; };
@@ -67,6 +69,7 @@
 		C7694E78259C3EC00053667F /* BankManagerConsoleApp */ = {
 			isa = PBXGroup;
 			children = (
+				4CB8E9BA25A998E300C021F6 /* HeadOffice.swift */,
 				4CB8E9C325A99CE000C021F6 /* Dashboard.swift */,
 				C7D65D1A259C8190005510E0 /* Bank.swift */,
 				4CDDB11725A422B700EDC9CE /* Teller.swift */,
@@ -135,6 +138,7 @@
 			buildActionMask = 2147483647;
 			files = (
 				C7694E7A259C3EC00053667F /* main.swift in Sources */,
+				4CB8E9BB25A998E300C021F6 /* HeadOffice.swift in Sources */,
 				C7D65D1B259C8190005510E0 /* Bank.swift in Sources */,
 				4CDDB11E25A422EF00EDC9CE /* Enum.swift in Sources */,
 				4CDDB11B25A422CD00EDC9CE /* Client.swift in Sources */,

BankManagerConsoleApp/BankManagerConsoleApp/Client.swift

@@ -15,7 +15,8 @@ struct Clients {
             guard let businessType = BusinessType.allCases.randomElement(), let priority = Client.Priority.allCases.randomElement() else {
                 return
             }
-            list.append(Client(waitingNumber: waitingNumber, businessType: businessType, priority: priority))
+            let clinet = Client(waitingNumber: waitingNumber, businessType: businessType, priority: priority)
+            list.append(clinet)
         }
     }
 }

BankManagerConsoleApp/BankManagerConsoleApp/Dashboard.swift

@@ -19,7 +19,7 @@ struct Dashboard {
 
     static func printCloseMessage(_ count: Int, _ time: TimeInterval?) {
         guard let time = time else {
-            print("\(BankError.unknown)")
+            print("\(StringFormattingError.unknown)")
             return
         }
         let message = String(format: Message.close, count, time)

BankManagerConsoleApp/BankManagerConsoleApp/Enum.swift

@@ -22,6 +22,8 @@ enum Message {
     static let close = "업무가 마감되었습니다. 오늘 업무를 처리한 고객은 총 %d명이며, 총 업무시간은 %.2f초입니다."
     static let tellerStart = "%d번 %@고객 %@업무 시작"
     static let tellerFinish = "%d번 %@고객 %@업무 완료"
+    static let loanStart = "%d번 %@고객 %@심사 시작"
+    static let loanFinish = "%d번 %@고객 %@심사 완료"
 }
 
 enum BusinessType: CaseIterable, CustomStringConvertible {
@@ -33,7 +35,7 @@ enum BusinessType: CaseIterable, CustomStringConvertible {
         case .deposit:
             return 0.7
         case .loan:
-            return 1.1
+            return 0.3
         }
     }
 
@@ -47,7 +49,7 @@ enum BusinessType: CaseIterable, CustomStringConvertible {
     }
 }
 
-enum BankError: Error, CustomStringConvertible {
+enum StringFormattingError: Error, CustomStringConvertible {
     case wrongInput
     case unknown
 

BankManagerConsoleApp/BankManagerConsoleApp/HeadOffice.swift

@@ -0,0 +1,22 @@
+//
+//  HeadOffice.swift
+//  BankManagerConsoleApp
+//
+//  Created by 임리나 on 2021/01/09.
+//
+
+import Foundation
+
+final class HeadOffice {
+    static let shared = HeadOffice()
+    private let neededTimeToJudgeLoan: TimeInterval = 0.5
+    let loanQueue: DispatchQueue = DispatchQueue(label: "HeadOffice")
+
+    private init() {}
+
+    func judgeLoan(for client: Client) {
+        Dashboard.printStatus(for: client, about: Message.loanStart)
+        Thread.sleep(forTimeInterval: self.neededTimeToJudgeLoan)
+        Dashboard.printStatus(for: client, about: Message.loanFinish)
+    }
+}

BankManagerConsoleApp/BankManagerConsoleApp/Teller.swift

@@ -9,7 +9,7 @@ import Foundation
 
 final class Teller {
     private var windowNumber: Int
-    var workingQueue: DispatchQueue
+    let workingQueue: DispatchQueue
     private var isWorking: Bool = false
     var isNotWorking: Bool {
         return !isWorking
@@ -24,10 +24,34 @@ final class Teller {
         isWorking = true
 
         workingQueue.async(group: group) {
-            Dashboard.printStatus(for: client, about: Message.tellerStart)
-            Thread.sleep(forTimeInterval: client.businessType.neededTime)
-            Dashboard.printStatus(for: client, about: Message.tellerFinish)
+            switch client.businessType {
+            case .deposit:
+                self.handleDeposit(for: client)
+            case .loan:
+                self.handleLoan(for: client)
+            }
             self.isWorking = false
         }
     }
+
+    func handleDeposit(for client: Client) {
+        Dashboard.printStatus(for: client, about: Message.tellerStart)
+        Thread.sleep(forTimeInterval: client.businessType.neededTime)
+        Dashboard.printStatus(for: client, about: Message.tellerFinish)
+    }
+
+
+    func handleLoan(for client: Client) {
+        let semaphore = DispatchSemaphore(value: 0)
+
+        Dashboard.printStatus(for: client, about: Message.tellerStart)
+        Thread.sleep(forTimeInterval: client.businessType.neededTime)
+        HeadOffice.shared.loanQueue.async {
+            HeadOffice.shared.judgeLoan(for: client)
+            semaphore.signal()
+        }
+        semaphore.wait()
+        Thread.sleep(forTimeInterval: client.businessType.neededTime)
+        Dashboard.printStatus(for: client, about: Message.tellerFinish)
+    }
 }

BankManagerConsoleApp/BankManagerConsoleApp/main.swift

@@ -17,14 +17,14 @@ func main() {
         Dashboard.printMenu()
 
         guard let input = readLine(), let command = Menu(rawValue: input) else {
-            print("\(BankError.wrongInput)")
+            print("\(StringFormattingError.wrongInput)")
             continue
         }
 
         switch command {
         case .start:
             let randomNumber = Int.random(in: minClientCount...maxClientCount)
-            let clients = Clients.init(count: randomNumber)
+            let clients = Clients(count: randomNumber)
             bank.operateBank(teller: tellerCount, client: clients.list)
         case .end:
             isContinue = false