feat: differentiate between mic and system audio in transcript

notetaker/Models/Meeting.swift

@@ -1,21 +1,83 @@
 import Foundation
 
+enum AudioSource: String, Codable, CaseIterable {
+    case mic = "MIC"
+    case system = "SYS"
+    
+    var displayName: String {
+        switch self {
+        case .mic:
+            return "Microphone"
+        case .system:
+            return "System Audio"
+        }
+    }
+    
+    var icon: String {
+        switch self {
+        case .mic:
+            return "mic.fill"
+        case .system:
+            return "speaker.wave.2.fill"
+        }
+    }
+}
+
+struct TranscriptChunk: Codable, Identifiable, Hashable {
+    let id: UUID
+    let timestamp: Date
+    let source: AudioSource
+    let text: String
+    let isFinal: Bool
+    
+    init(id: UUID = UUID(), timestamp: Date = Date(), source: AudioSource, text: String, isFinal: Bool = false) {
+        self.id = id
+        self.timestamp = timestamp
+        self.source = source
+        self.text = text
+        self.isFinal = isFinal
+    }
+}
+
 struct Meeting: Codable, Identifiable, Hashable {
     let id: UUID
     let date: Date
-    var transcript: String
+    var transcriptChunks: [TranscriptChunk]
     var userNotes: String
     var generatedNotes: String
     
     init(id: UUID = UUID(), 
          date: Date = Date(), 
-         transcript: String = "", 
+         transcriptChunks: [TranscriptChunk] = [],
          userNotes: String = "", 
          generatedNotes: String = "") {
         self.id = id
         self.date = date
-        self.transcript = transcript
+        self.transcriptChunks = transcriptChunks
         self.userNotes = userNotes
         self.generatedNotes = generatedNotes
     }
+    
+    // Computed property for backward compatibility with existing code
+    var transcript: String {
+        return transcriptChunks
+            .filter { $0.isFinal }
+            .map { "[\($0.source.rawValue)] \($0.text)" }
+            .joined(separator: " ")
+    }
+    
+    // Separate computed properties for mic and system transcripts
+    var micTranscript: String {
+        return transcriptChunks
+            .filter { $0.source == .mic && $0.isFinal }
+            .map { $0.text }
+            .joined(separator: " ")
+    }
+    
+    var systemTranscript: String {
+        return transcriptChunks
+            .filter { $0.source == .system && $0.isFinal }
+            .map { $0.text }
+            .joined(separator: " ")
+    }
 }