feat: use openai for tts instead of deepgram

notetaker/ViewModels/SettingsViewModel.swift

@@ -1,60 +1,41 @@
 import Foundation
 import SwiftUI
 
-@MainActor
 class SettingsViewModel: ObservableObject {
-    @Published var settings: Settings
-    @Published var isSaving = false
-    @Published var saveSuccessful = false
-    @Published var errorMessage: String?
+    @Published var settings = Settings()
+    @Published var saveMessage = ""
+    @Published var showingSaveMessage = false
     
     init() {
-        self.settings = Settings()
         loadSettings()
     }
     
     func loadSettings() {
-        // Load API keys from Keychain
-        settings.deepgramKey = KeychainHelper.shared.get(forKey: "deepgramKey") ?? ""
         settings.openAIKey = KeychainHelper.shared.get(forKey: "openAIKey") ?? ""
         settings.userBlurb = KeychainHelper.shared.get(forKey: "userBlurb") ?? ""
-        settings.systemPrompt = KeychainHelper.shared.get(forKey: "systemPrompt") ?? Settings.defaultSystemPrompt
+        settings.systemPrompt = KeychainHelper.shared.get(forKey: "systemPrompt") ?? Settings.defaultSystemPrompt()
     }
     
     func saveSettings() {
-        isSaving = true
-        errorMessage = nil
-        saveSuccessful = false
-        
-        // Validate system prompt template before saving
-        let validation = settings.validateSystemPrompt()
-        if !validation.isValid {
-            let missingVars = validation.missingVariables.joined(separator: ", ")
-            errorMessage = "System prompt is missing required variables: \(missingVars). Please include these variables in your template using double curly braces (e.g., {{transcript}})."
-            isSaving = false
-            return
-        }
-        
-        // Save to Keychain
-        let deepgramSaved = KeychainHelper.shared.save(settings.deepgramKey, forKey: "deepgramKey")
         let openAISaved = KeychainHelper.shared.save(settings.openAIKey, forKey: "openAIKey")
         let blurbSaved = KeychainHelper.shared.save(settings.userBlurb, forKey: "userBlurb")
         let promptSaved = KeychainHelper.shared.save(settings.systemPrompt, forKey: "systemPrompt")
         
-        if deepgramSaved && openAISaved && blurbSaved && promptSaved {
-            saveSuccessful = true
-            // Show success briefly
-            DispatchQueue.main.asyncAfter(deadline: .now() + 2) { [weak self] in
-                self?.saveSuccessful = false
-            }
+        if openAISaved && blurbSaved && promptSaved {
+            saveMessage = "Settings saved successfully!"
         } else {
-            errorMessage = "Failed to save some settings. Please try again."
+            saveMessage = "Error saving settings"
         }
         
-        isSaving = false
+        showingSaveMessage = true
+        
+        // Hide the message after 3 seconds
+        DispatchQueue.main.asyncAfter(deadline: .now() + 3) {
+            self.showingSaveMessage = false
+        }
     }
     
     func resetToDefaults() {
-        settings.systemPrompt = Settings.defaultSystemPrompt
+        settings.systemPrompt = Settings.defaultSystemPrompt()
     }
 }