boostcampwm-2024 · around-forest · Feb 2, 2025 · Jan 21, 2025 · Jan 21, 2025 · Jan 21, 2025
@@ -3,45 +3,49 @@ import Foundation
 
 public enum ASAudioAnalyzer {
     public static func analyze(data: Data, samplesCount: Int) async throws -> [CGFloat] {
-        let tempURL = FileManager.default.temporaryDirectory.appendingPathComponent(UUID().uuidString + ".m4a")
-        try data.write(to: tempURL)
-        let file = try AVAudioFile(forReading: tempURL)
-
-        guard
-            let format = AVAudioFormat(
-                commonFormat: .pcmFormatFloat32,
-                sampleRate: file.fileFormat.sampleRate,
-                channels: file.fileFormat.channelCount,
-                interleaved: false
-            ),
-            let buffer = AVAudioPCMBuffer(pcmFormat: format, frameCapacity: AVAudioFrameCount(file.length))
-        else {
-            return []
+        do {
+            let tempURL = FileManager.default.temporaryDirectory.appendingPathComponent(UUID().uuidString + ".m4a")
+            try data.write(to: tempURL)
+            let file = try AVAudioFile(forReading: tempURL)
+
+            guard
+                let format = AVAudioFormat(
+                    commonFormat: .pcmFormatFloat32,
+                    sampleRate: file.fileFormat.sampleRate,
+                    channels: file.fileFormat.channelCount,
+                    interleaved: false
+                ),
+                let buffer = AVAudioPCMBuffer(pcmFormat: format, frameCapacity: AVAudioFrameCount(file.length))
+            else {
+                return []
+            }
+
+            try file.read(into: buffer)
+            guard let floatChannelData = buffer.floatChannelData else {
+                return []
+            }
+
+            let frameLength = Int(buffer.frameLength)
+            let samples = Array(UnsafeBufferPointer(start: floatChannelData[0], count: frameLength))
+            var result = [CGFloat]()
+            let chunkedSamples = samples.chunked(into: samples.count / samplesCount)
+
+            for chunk in chunkedSamples {
+                let squaredSum = chunk.reduce(0) { $0 + $1 * $1 }
+                let averagePower = squaredSum / Float(chunk.count)
+                let decibels = 10 * log10(max(averagePower, Float.ulpOfOne))
+
+                let newAmplitude = 1.8 * pow(10.0, decibels / 20.0)
+                let clampedAmplitude = min(max(CGFloat(newAmplitude), 0), 1)
+                result.append(clampedAmplitude)
+            }
+
+            try? FileManager.default.removeItem(at: tempURL)
+
+            return result
+        } catch {
+            throw ASAudioErrors.analyzeError(reason: error.localizedDescription)
         }
-
-        try file.read(into: buffer)
-        guard let floatChannelData = buffer.floatChannelData else {
-            return []
-        }
-
-        let frameLength = Int(buffer.frameLength)
-        let samples = Array(UnsafeBufferPointer(start: floatChannelData[0], count: frameLength))
-        var result = [CGFloat]()
-        let chunkedSamples = samples.chunked(into: samples.count / samplesCount)
-
-        for chunk in chunkedSamples {
-            let squaredSum = chunk.reduce(0) { $0 + $1 * $1 }
-            let averagePower = squaredSum / Float(chunk.count)
-            let decibels = 10 * log10(max(averagePower, Float.ulpOfOne))
-
-            let newAmplitude = 1.8 * pow(10.0, decibels / 20.0)
-            let clampedAmplitude = min(max(CGFloat(newAmplitude), 0), 1)
-            result.append(clampedAmplitude)
-        }
-
-        try? FileManager.default.removeItem(at: tempURL)
-
-        return result
     }
 }
 

@@ -0,0 +1,24 @@
+import Foundation
+
+enum ASAudioErrors: Error, LocalizedError {
+    case startPlayingError(reason: String)
+    case getDurationError(reason: String)
+    case configureAudioSessionError(reason: String)
+    case startRecordingError(reason: String)
+    case analyzeError(reason: String)
+
+    var errorDescription: String? {
+        switch self {
+        case .startPlayingError(let reason):
+            return "ASAudioPlayer.swift startPlaying() 에러: 오디오 객체 생성에 실패했습니다.\n\(reason)"
+        case .getDurationError(let reason):
+            return "ASAudioPlayer.swift getDuration() 에러: 오디오 객체 생성에 실패했습니다.\n\(reason)"
+        case .configureAudioSessionError(let reason):
+            return "confitureAudioSession() 에러: 세션 설정에 실패했습니다.\n\(reason)"
+        case .startRecordingError(let reason):
+            return "ASAudioRecorder.swift startRecording() 에러: 오디오 레코더 객체 생성에 실패했습니다.\n\(reason)"
+        case .analyzeError(let reason):
+            return "ASAudioAnalyzer.swift analyze() 에러: 오디오 분석에 실패했습니다.\n\(reason)"
+        }
+    }
+}
@@ -12,6 +12,7 @@
 		4E8907C22CE2489A00D5B547 /* ASAudioKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 4E89071E2CE23D1B00D5B547 /* ASAudioKit.framework */; platformFilter = ios; };
 		4EB1ED372CE88E500012FFBA /* ASAudioKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 4E89071E2CE23D1B00D5B547 /* ASAudioKit.framework */; };
 		4EB1ED382CE88E500012FFBA /* ASAudioKit.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = 4E89071E2CE23D1B00D5B547 /* ASAudioKit.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
+		8593659D2D3F77FE0086C8C4 /* ASAudioErrors.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8593659C2D3F77F60086C8C4 /* ASAudioErrors.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -50,6 +51,7 @@
 		4E89071E2CE23D1B00D5B547 /* ASAudioKit.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = ASAudioKit.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		4E8907BE2CE2489A00D5B547 /* ASAudioKitTests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = ASAudioKitTests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
 		4EB1EC802CE7AA160012FFBA /* ASAudioDemo.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = ASAudioDemo.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		8593659C2D3F77F60086C8C4 /* ASAudioErrors.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ASAudioErrors.swift; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFileSystemSynchronizedBuildFileExceptionSet section */
@@ -125,6 +127,7 @@
 			isa = PBXGroup;
 			children = (
 				1B7EB01A2CFDA83B00B2BE2A /* ASAudioAnalyzer.swift */,
+				8593659C2D3F77F60086C8C4 /* ASAudioErrors.swift */,
 				4E8907AD2CE240D400D5B547 /* ASAudioKit */,
 				4E8907BF2CE2489A00D5B547 /* ASAudioKitTests */,
 				4EB1EC812CE7AA160012FFBA /* ASAudioDemo */,
@@ -305,6 +308,7 @@
 			buildActionMask = 2147483647;
 			files = (
 				1B7EB01C2CFDA83B00B2BE2A /* ASAudioAnalyzer.swift in Sources */,
+				8593659D2D3F77FE0086C8C4 /* ASAudioErrors.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

@@ -13,28 +13,29 @@ public actor ASAudioPlayer: NSObject {
     public var onPlaybackFinished: (@Sendable () async -> Void)?
 
     /// 녹음파일을 재생하고 옵션에 따라 재생시간을 설정합니다.
-    public func startPlaying(data: Data, option: PlayType = .full) {
-        configureAudioSession()
+    public func startPlaying(data: Data, option: PlayType = .full) throws {
         do {
+            try configureAudioSession()
             audioPlayer = try AVAudioPlayer(data: data)
             audioPlayer?.delegate = self
             audioPlayer?.prepareToPlay()
             audioPlayer?.isMeteringEnabled = true
         } catch {
             // TODO: 오디오 객체생성 실패 시 처리
+            throw ASAudioErrors.startPlayingError(reason: error.localizedDescription)
         }
 
         switch option {
-            case .full:
-                audioPlayer?.play()
-            case let .partial(time):
-                audioPlayer?.currentTime = 0
-                audioPlayer?.play()
-                DispatchQueue.main.asyncAfter(deadline: .now() + TimeInterval(time)) {
-                    Task {
-                        await self.stopPlaying()
-                    }
+        case .full:
+            audioPlayer?.play()
+        case let .partial(time):
+            audioPlayer?.currentTime = 0
+            audioPlayer?.play()
+            DispatchQueue.main.asyncAfter(deadline: .now() + TimeInterval(time)) {
+                Task {
+                    await self.stopPlaying()
                 }
+            }
         }
     }
 
@@ -51,12 +52,13 @@ public actor ASAudioPlayer: NSObject {
     }
 
     /// 녹음파일의 총 녹음시간을 리턴합니다.
-    public func getDuration(data: Data) -> TimeInterval {
+    public func getDuration(data: Data) throws -> TimeInterval {
         if audioPlayer == nil {
             do {
                 audioPlayer = try AVAudioPlayer(data: data)
             } catch {
                 // TODO: 오디오 객체생성 실패 시 처리
+                throw ASAudioErrors.getDurationError(reason: error.localizedDescription)
             }
         }
         return audioPlayer?.duration ?? 0
@@ -66,13 +68,14 @@ public actor ASAudioPlayer: NSObject {
         onPlaybackFinished = handler
     }
 
-    private func configureAudioSession() {
+    private func configureAudioSession() throws {
         do {
             let session = AVAudioSession.sharedInstance()
             try session.setCategory(.playAndRecord, mode: .default, options: [.defaultToSpeaker])
             try session.setActive(true, options: .notifyOthersOnDeactivation)
         } catch {
             // TODO: 세션 설정 실패에 따른 처리
+            throw ASAudioErrors.configureAudioSessionError(reason: error.localizedDescription)
         }
     }
 }

@@ -5,33 +5,34 @@ public actor ASAudioRecorder {
 
     public init() {}
     /// 녹음 후 저장될 파일의 위치를 지정하여 녹음합니다.
-    public func startRecording(url: URL) {
-        configureAudioSession()
-        let settings = [
-            AVFormatIDKey: Int(kAudioFormatMPEG4AAC),
-            AVSampleRateKey: 12000,
-            AVNumberOfChannelsKey: 1,
-            AVEncoderAudioQualityKey: AVAudioQuality.high.rawValue,
-        ]
-
+    public func startRecording(url: URL) throws {
         do {
+            try configureAudioSession()
+            let settings = [
+                AVFormatIDKey: Int(kAudioFormatMPEG4AAC),
+                AVSampleRateKey: 12000,
+                AVNumberOfChannelsKey: 1,
+                AVEncoderAudioQualityKey: AVAudioQuality.high.rawValue,
+            ]
             audioRecorder = try AVAudioRecorder(url: url, settings: settings)
             audioRecorder?.prepareToRecord()
             audioRecorder?.isMeteringEnabled = true
             audioRecorder?.record()
         } catch {
             // TODO: AVAudioRecorder 객체 생성 실패 시에 대한 처리
+            throw ASAudioErrors.startRecordingError(reason: error.localizedDescription)
         }
     }
 
     /// 오디오 세션을 설정합니다.
-    private func configureAudioSession() {
+    private func configureAudioSession() throws {
         do {
             let session = AVAudioSession.sharedInstance()
             try session.setCategory(.playAndRecord, mode: .default, options: [.defaultToSpeaker])
             try session.setActive(true, options: .notifyOthersOnDeactivation)
         } catch {
             // TODO: 세션 설정 실패에 따른 처리
+            throw ASAudioErrors.configureAudioSessionError(reason: error.localizedDescription)
         }
     }
 

@@ -10,6 +10,7 @@
 		1B06307A2CE64E7C005300BF /* ASDecoder.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 1B702E612CE5193F00124F73 /* ASDecoder.framework */; };
 		1B06307B2CE64E7C005300BF /* ASDecoder.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = 1B702E612CE5193F00124F73 /* ASDecoder.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
 		1B702E6A2CE5193F00124F73 /* ASDecoder.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 1B702E612CE5193F00124F73 /* ASDecoder.framework */; };
+		8593659A2D3F71E80086C8C4 /* ASDecoderErrors.swift in Sources */ = {isa = PBXBuildFile; fileRef = 859365982D3F71E40086C8C4 /* ASDecoderErrors.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -47,6 +48,7 @@
 		1B06306B2CE64E74005300BF /* ASDecoderDemo.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = ASDecoderDemo.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		1B702E612CE5193F00124F73 /* ASDecoder.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = ASDecoder.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		1B702E692CE5193F00124F73 /* ASDecoderTests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = ASDecoderTests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
+		859365982D3F71E40086C8C4 /* ASDecoderErrors.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ASDecoderErrors.swift; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFileSystemSynchronizedRootGroup section */
@@ -104,6 +106,7 @@
 		1B702E572CE5193F00124F73 = {
 			isa = PBXGroup;
 			children = (
+				859365982D3F71E40086C8C4 /* ASDecoderErrors.swift */,
 				1B702E632CE5193F00124F73 /* ASDecoder */,
 				1B702E6D2CE5193F00124F73 /* ASDecoderTests */,
 				1B06306C2CE64E74005300BF /* ASDecoderDemo */,
@@ -285,6 +288,7 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				8593659A2D3F71E80086C8C4 /* ASDecoderErrors.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

@@ -2,11 +2,15 @@ import Foundation
 
 public enum ASDecoder {
     public static func decode<T: Decodable>(_: T.Type, from data: Data) throws -> T {
-        let decoder = JSONDecoder()
-        decoder.keyDecodingStrategy = .convertFromSnakeCase
-        decoder.dateDecodingStrategy = .iso8601
+        do {
+            let decoder = JSONDecoder()
+            decoder.keyDecodingStrategy = .convertFromSnakeCase
+            decoder.dateDecodingStrategy = .iso8601
 
-        return try decoder.decode(T.self, from: data)
+            return try decoder.decode(T.self, from: data)
+        } catch {
+            throw ASDecoderErrors.decodeError(reason: error.localizedDescription)
+        }
     }
 
     public static func handleResponse<T: Decodable>(result: Result<Data, Error>) async throws -> T {

@@ -0,0 +1,12 @@
+import Foundation
+
+enum ASDecoderErrors: Error, LocalizedError {
+    case decodeError(reason: String)
+
+    var errorDescription: String? {
+        switch self {
+            case .decodeError(let reason):
+                return "ASDecoder.swift decode() 에러: 데이터 디코딩 중 오류가 발생했습니다.\n\(reason)"
+        }
+    }
+}
@@ -10,6 +10,7 @@
 		1B1327F02CE5F26400EF706D /* ASEncoder.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 1B702E2F2CE5152600124F73 /* ASEncoder.framework */; };
 		1B1327F12CE5F26400EF706D /* ASEncoder.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = 1B702E2F2CE5152600124F73 /* ASEncoder.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
 		1B702E382CE5152600124F73 /* ASEncoder.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 1B702E2F2CE5152600124F73 /* ASEncoder.framework */; };
+		859365972D3F71390086C8C4 /* ASEncoderErrors.swift in Sources */ = {isa = PBXBuildFile; fileRef = 859365952D3F71310086C8C4 /* ASEncoderErrors.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -47,6 +48,7 @@
 		1B702E2F2CE5152600124F73 /* ASEncoder.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = ASEncoder.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		1B702E372CE5152600124F73 /* ASEncoderTests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = ASEncoderTests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
 		1BDDABBD2CE5E2E000147881 /* ASEncoderDemo.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = ASEncoderDemo.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		859365952D3F71310086C8C4 /* ASEncoderErrors.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ASEncoderErrors.swift; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFileSystemSynchronizedRootGroup section */
@@ -104,6 +106,7 @@
 		1B702E252CE5152600124F73 = {
 			isa = PBXGroup;
 			children = (
+				859365952D3F71310086C8C4 /* ASEncoderErrors.swift */,
 				1B702E312CE5152600124F73 /* ASEncoder */,
 				1B702E3B2CE5152600124F73 /* ASEncoderTests */,
 				1BDDABBE2CE5E2E000147881 /* ASEncoderDemo */,
@@ -278,6 +281,7 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				859365972D3F71390086C8C4 /* ASEncoderErrors.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

@@ -2,11 +2,15 @@ import Foundation
 
 public enum ASEncoder {
     public static func encode<T: Encodable>(_ value: T) throws -> Data {
-        let encoder = JSONEncoder()
-        encoder.dateEncodingStrategy = .iso8601
-        encoder.keyEncodingStrategy = .useDefaultKeys
-        encoder.outputFormatting = [.prettyPrinted]
+        do {
+            let encoder = JSONEncoder()
+            encoder.dateEncodingStrategy = .iso8601
+            encoder.keyEncodingStrategy = .useDefaultKeys
+            encoder.outputFormatting = [.prettyPrinted]
 
-        return try encoder.encode(value)
+            return try encoder.encode(value)
+        } catch {
+            throw ASEncoderErrors.encodeError(reason: error.localizedDescription)
+        }
     }
 }
@@ -0,0 +1,12 @@
+import Foundation
+
+enum ASEncoderErrors: Error, LocalizedError {
+    case encodeError(reason: String)
+
+    var errorDescription: String? {
+        switch self {
+            case .encodeError(let reason):
+                return "ASEncoder.swift encode() 에러: 데이터 인코딩 중 오류가 발생했습니다.\n\(reason)"
+        }
+    }
+}