refactor: delete unused code

Dayflow/Dayflow/Core/AI/GeminiDirectProvider.swift

@@ -7,7 +7,6 @@ import Foundation
 
 final class GeminiDirectProvider: LLMProvider {
     private let apiKey: String
-    private let genEndpoint = "https://generativelanguage.googleapis.com/v1beta/models/gemini-2.5-pro:generateContent"
     private let fileEndpoint = "https://generativelanguage.googleapis.com/upload/v1beta/files"
     private let proModel = "gemini-2.5-pro"
     private let flashModel = "gemini-2.5-flash"
@@ -317,7 +316,6 @@ final class GeminiDirectProvider: LLMProvider {
         var lastError: Error?
         var finalResponse = ""
         var finalObservations: [Observation] = []
-        var finalUsedModel = proModel
 
         // Model state for Flash fallback (persists across retries)
         var currentModel = proModel
@@ -387,7 +385,6 @@ final class GeminiDirectProvider: LLMProvider {
                 print("✅ Video transcription succeeded on attempt \(attempt + 1)")
                 finalResponse = response
                 finalObservations = observations
-                finalUsedModel = usedModel
                 break
 
             } catch {
@@ -548,8 +545,6 @@ final class GeminiDirectProvider: LLMProvider {
         let existingCardsJSON = try encoder.encode(context.existingCards)
         let existingCardsString = String(data: existingCardsJSON, encoding: .utf8) ?? "[]"
 
-        let exampleCategory = context.categories.first?.name ?? "Work"
-
         let basePrompt = """
         You are a digital anthropologist, observing a user's raw activity log. Your goal is to synthesize this log into a high-level, human-readable story of their session, presented as a series of timeline cards.
         THE GOLDEN RULE:
@@ -1165,7 +1160,7 @@ private func uploadResumable(data: Data, mimeType: String) async throws -> Strin
             // Prepare logging context
             let responseHeaders: [String:String] = httpResponse.allHeaderFields.reduce(into: [:]) { acc, kv in
                 if let k = kv.key as? String, let v = kv.value as? CustomStringConvertible { acc[k] = v.description }
-            } ?? [:]
+			}
             let modelName: String? = {
                 if let u = URL(string: urlWithKey) {
                     let last = u.path.split(separator: "/").last.map(String.init)
@@ -1475,7 +1470,7 @@ private func uploadResumable(data: Data, mimeType: String) async throws -> Strin
             // Prepare logging context
             let responseHeaders: [String:String] = httpResponse.allHeaderFields.reduce(into: [:]) { acc, kv in
                 if let k = kv.key as? String, let v = kv.value as? CustomStringConvertible { acc[k] = v.description }
-            } ?? [:]
+			}
             let modelName: String? = {
                 if let u = URL(string: urlWithKey) {
                     let last = u.path.split(separator: "/").last.map(String.init)

Dayflow/Dayflow/Core/AI/LLMService.swift

@@ -179,12 +179,11 @@ final class LLMService: LLMServicing {
                     throw NSError(domain: "LLMService", code: 6, userInfo: [NSLocalizedDescriptionKey: "Failed to create composition track"])
                 }
 
-                for (index, filePath) in chunkFiles.enumerated() {
+				for (_, filePath) in chunkFiles.enumerated() {
                     let url = URL(fileURLWithPath: filePath)
 
                     let asset = AVAsset(url: url)
                     let duration = try await asset.load(.duration)
-                    let durationSeconds = CMTimeGetSeconds(duration)
 
 
                     if let track = try await asset.loadTracks(withMediaType: .video).first {
@@ -216,7 +215,7 @@ final class LLMService: LLMServicing {
                 // Get batch start time for timestamp conversion
                 let batchStartDate = Date(timeIntervalSince1970: TimeInterval(batchStartTs))
 
-                let (observations, transcribeLog) = try await provider.transcribeVideo(
+                let (observations, _) = try await provider.transcribeVideo(
                     videoData: videoData,
                     mimeType: mimeType,
                     prompt: "Transcribe this video", // Provider will use its own prompt
@@ -292,7 +291,7 @@ final class LLMService: LLMServicing {
                 )
 
                 // Generate activity cards using sliding window observations
-                let (cards, cardsLog) = try await provider.generateActivityCards(
+				let (cards, _) = try await provider.generateActivityCards(
                     observations: recentObservations,
                     context: context,
                     batchId: batchId

Dayflow/Dayflow/Core/AI/OllamaProvider.swift

@@ -57,7 +57,6 @@ final class OllamaProvider: LLMProvider {
         // Step 1: Extract frames at intervals
         let extractionStart = Date()
         let frames = try await extractFrames(from: tempURL)
-        let extractionTime = Date().timeIntervalSince(extractionStart)
 
 
         // Step 2: Get simple descriptions for each frame
@@ -77,7 +76,6 @@ final class OllamaProvider: LLMProvider {
             videoDuration: videoDuration,
             batchId: batchId
         )
-        let mergeTime = Date().timeIntervalSince(mergeStart)
 
 
         let totalTime = Date().timeIntervalSince(callStart)
@@ -428,7 +426,7 @@ final class OllamaProvider: LLMProvider {
         }
 
         // Build message content with image and text
-        var content: [MessageContent] = [
+		let content: [MessageContent] = [
             MessageContent(type: "text", text: prompt, image_url: nil),
             MessageContent(type: "image_url", text: nil, image_url: MessageContent.ImageURL(url: "data:image/jpeg;base64,\(base64String)"))
         ]
@@ -494,7 +492,6 @@ final class OllamaProvider: LLMProvider {
                 )
                 ctxForAttempt = ctx
                 let (data, response) = try await URLSession.shared.data(for: urlRequest)
-                let apiTime = Date().timeIntervalSince(apiStart)
 
                 guard let httpResponse = response as? HTTPURLResponse else {
                     throw NSError(domain: "OllamaProvider", code: 4, userInfo: [NSLocalizedDescriptionKey: "Invalid response"])

Dayflow/Dayflow/Core/Analysis/AnalysisManager.swift

@@ -113,7 +113,7 @@ final class AnalysisManager: AnalysisManaging {
 
             // 6. Process each batch sequentially
             var processedCount = 0
-            var hasError = false
+			let hasError = false
 
             for (index, batchId) in batchIds.enumerated() {
                 if hasError { break }
@@ -125,9 +125,6 @@ final class AnalysisManager: AnalysisManaging {
                     progressHandler("Processing batch \(index + 1) of \(batchIds.count)... (Total elapsed: \(self.formatDuration(elapsedTotal)))")
                 }
 
-                // Use a semaphore to wait for each batch to complete
-                let semaphore = DispatchSemaphore(value: 0)
-
                 self.queueGeminiRequest(batchId: batchId)
 
                 // Wait for batch to complete (check status periodically)
@@ -245,10 +242,8 @@ final class AnalysisManager: AnalysisManaging {
 
             // Process batches
             var processedCount = 0
-            var hasError = false
 
             for (index, batchId) in batchIds.enumerated() {
-                if hasError { break }
 
                 let batchStartTime = Date()
                 let elapsedTotal = Date().timeIntervalSince(overallStartTime)
@@ -261,7 +256,7 @@ final class AnalysisManager: AnalysisManaging {
 
                 // Wait for batch to complete (check status periodically)
                 var isCompleted = false
-                while !isCompleted && !hasError {
+                while !isCompleted {
                     Thread.sleep(forTimeInterval: 2.0) // Check every 2 seconds
 
                     let allBatches = self.store.allBatches()
@@ -354,14 +349,6 @@ final class AnalysisManager: AnalysisManaging {
 
         updateBatchStatus(batchId: batchId, status: "processing")
 
-        // Prepare file URLs for video processing
-        let chunkFileURLs: [URL] = chunksInBatch.compactMap { chunk in
-            // Assuming chunk.fileUrl is a String path, convert to URL
-            // Ensure this path is accessible. If it's a relative path, resolve it.
-            // For now, assuming it's an absolute file path string.
-            URL(fileURLWithPath: chunk.fileUrl)
-        }
-
         llmService.processBatch(batchId) { [weak self] (result: Result<ProcessedBatchResult, Error>) in
             guard let self else { return }
 

Dayflow/Dayflow/Core/Recording/ScreenRecorder.swift

@@ -446,7 +446,7 @@ final class ScreenRecorder: NSObject, SCStreamOutput {
         guard type == .screen else { return }
         guard CMSampleBufferDataIsReady(sb) else { return }
         guard isComplete(sb) else { return }
-        if let pb = CMSampleBufferGetImageBuffer(sb) {
+		if CMSampleBufferGetImageBuffer(sb) != nil {
             // TEMPORARILY DISABLED to test if this causes corruption
             // overlayClock(on: pb)          // ← inject the clock into this frame
         }
@@ -455,7 +455,8 @@ final class ScreenRecorder: NSObject, SCStreamOutput {
 
         if firstPTS == nil {
             firstPTS = sb.presentationTimeStamp
-            let started = w.startWriting()
+            let didStartWriting = w.startWriting()
+            assert(didStartWriting)
             w.startSession(atSourceTime: firstPTS!)
         }
 

Dayflow/Dayflow/Core/Recording/StorageManager.swift

@@ -915,12 +915,6 @@ final class StorageManager: StorageManaging, @unchecked Sendable {
                    OR (start_ts >= ? AND start_ts < ?)
             """, arguments: [toTs, fromTs, fromTs, toTs])
 
-            for card in cardsToDelete {
-                let id: Int64 = card["id"]
-                let start: String = card["start"]
-                let end: String = card["end"]
-                let title: String = card["title"]
-            }
 
             // Delete existing cards in the range using timestamp columns
             try db.execute(sql: """

Dayflow/Dayflow/Core/Recording/VideoProcessingService.swift

@@ -271,7 +271,6 @@ actor VideoProcessingService {
         let actualSize = naturalSize.applying(preferredTransform)
         let width = Int(abs(actualSize.width))
         let height = Int(abs(actualSize.height))
-        let nominalFrameRate = try await assetTrack.load(.nominalFrameRate)
 
         // Create composition with time mapping for speedup
         let composition = AVMutableComposition()

Dayflow/Dayflow/Core/Thumbnails/ThumbnailCache.swift

@@ -56,7 +56,6 @@ final class ThumbnailCache {
 
         queue.addOperation { [weak self] in
             guard let self = self else { return }
-            let t0 = CFAbsoluteTimeGetCurrent()
             let image = self.generateThumbnail(urlString: normalizedURL, targetSize: targetSize)
 
             if let image = image {

Dayflow/Dayflow/System/AnalyticsService.swift

@@ -51,7 +51,7 @@ final class AnalyticsService {
         registerInitialSuperProperties()
 
         // Person properties via $set / $set_once
-        var set: [String: Any] = [
+		let set: [String: Any] = [
             "analytics_opt_in": isOptedIn
         ]
         var payload: [String: Any] = ["$set": sanitize(set)]

Dayflow/Dayflow/System/SilentUserDriver.swift

@@ -19,7 +19,7 @@ final class SilentUserDriver: NSObject, SPUUserDriver {
     }
 
     func showUpdateFound(with appcastItem: SUAppcastItem, state: SPUUserUpdateState, reply: @escaping (SPUUserUpdateChoice) -> Void) {
-        print("[Sparkle] Update found: \(appcastItem.displayVersionString ?? appcastItem.versionString)")
+		print("[Sparkle] Update found: \(appcastItem.displayVersionString)")
         // Always proceed to install
         reply(.install)
     }

Dayflow/Dayflow/System/UpdaterManager.swift

@@ -121,7 +121,7 @@ extension UpdaterManager: SPUUpdaterDelegate {
     nonisolated func updater(_ updater: SPUUpdater, didFindValidUpdate item: SUAppcastItem) {
         Task { @MainActor in
             self.updateAvailable = true
-            self.latestVersionString = item.displayVersionString ?? item.versionString
+			self.latestVersionString = item.displayVersionString
             self.statusText = "Update available: v\(self.latestVersionString ?? "?")"
             self.isChecking = false
             AppDelegate.allowTermination = false

Dayflow/Dayflow/Views/UI/ScrubberView.swift

@@ -82,7 +82,6 @@ final class FilmstripGenerator {
 
             var images: [NSImage] = Array(repeating: NSImage(), count: frameCount)
             var produced = 0
-            let group = DispatchGroup()
 
             // Use generateCGImagesAsynchronously for better throughput
             generator.generateCGImagesAsynchronously(forTimes: times) { requestedTime, cg, actualTime, result, error in