quietlight/skraakCLI - Change 3ETJ6KPIYI23DLXSKISNJSY3DUGHOACE6CPCPF6V7KJK4EXIADQAC

refactor of tui/ second iteration

Created by quietlight on May 18, 2026

3ETJ6KPIYI23DLXSKISNJSY3DUGHOACE6CPCPF6V7KJK4EXIADQAC

Dependencies

In channels

main

Change contents

Insertion in utils/spectrogram_test.go at line 4 [3.793]
[3.818]
[3.818]
```
	"os"
	"path/filepath"
```

Insertion in utils/spectrogram_test.go at line 52 [3.793]

[3.2112]

	}
}
func TestClipBaseName(t *testing.T) {
	tests := []struct {
		prefix    string
		basename  string
		startTime float64
		endTime   float64
		want      string
	}{
		{"clip", "file", 1.0, 3.0, "clip_file_1_3"},
		{"test", "recording", 0.0, 5.5, "test_recording_0_6"}, // ceil(5.5) = 6
		{"a", "b", 2.7, 4.2, "a_b_2_5"},                       // floor(2.7)=2, ceil(4.2)=5
	}
	for _, tt := range tests {
		got := ClipBaseName(tt.prefix, tt.basename, tt.startTime, tt.endTime)
		if got != tt.want {
			t.Errorf("ClipBaseName(%q, %q, %.1f, %.1f) = %q, want %q",
				tt.prefix, tt.basename, tt.startTime, tt.endTime, got, tt.want)
		}
	}
}
func TestWAVBasename(t *testing.T) {
	tests := []struct {
		path string
		want string
	}{
		{"/path/to/file.wav.data", "file"},
		{"/audio/2024-01-15_recording.wav.data", "2024-01-15_recording"},
		{"simple.wav.data", "simple"},
	}
	for _, tt := range tests {
		got := WAVBasename(tt.path)
		if got != tt.want {
			t.Errorf("WAVBasename(%q) = %q, want %q", tt.path, got, tt.want)
		}
	}
}
func TestClipPaths(t *testing.T) {
	tmp := t.TempDir()
	// Normal case
	pngPath, wavPath, err := ClipPaths(tmp, "clip", "file", 1.0, 3.0)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	expectedPng := filepath.Join(tmp, "clip_file_1_3.png")
	expectedWav := filepath.Join(tmp, "clip_file_1_3.wav")
	if pngPath != expectedPng {
		t.Errorf("pngPath = %q, want %q", pngPath, expectedPng)
	}
	if wavPath != expectedWav {
		t.Errorf("wavPath = %q, want %q", wavPath, expectedWav)
	}
	// Collision detection
	os.Create(expectedPng)
	_, _, err = ClipPaths(tmp, "clip", "file", 1.0, 3.0)
	if err == nil {
		t.Error("expected error for existing file")
	}
}
func TestWritePNGFile(t *testing.T) {
	tmp := t.TempDir()
	// Create a simple test image (grayscale 2x2)
	gray := [][]uint8{{128, 64}, {32, 16}}
	img := CreateGrayscaleImage(gray)
	if img == nil {
		t.Fatal("failed to create test image")
	}
	path := filepath.Join(tmp, "test.png")
	if err := WritePNGFile(path, img); err != nil {
		t.Fatalf("WritePNGFile failed: %v", err)
	}
	// Verify file exists
	if _, err := os.Stat(path); err != nil {
		t.Errorf("file not created: %v", err)
	}
	// Collision detection
	err := WritePNGFile(path, img)
	if err == nil {
		t.Error("expected error for existing file")

Insertion in utils/spectrogram_test.go at line 146 [3.793]

[3.2117]


func TestSpectrogramImageFromSamples(t *testing.T) {
	// Create a simple sine wave
	const sampleRate = 16000
	const duration = 0.1 // 100ms
	samples := make([]float64, int(sampleRate*duration))
	for i := range samples {
		samples[i] = 0.5 // DC signal
	}
	img := SpectrogramImageFromSamples(samples, sampleRate, true, 224)
	if img == nil {
		t.Fatal("expected non-nil image")
	}
	bounds := img.Bounds()
	if bounds.Dx() != 224 || bounds.Dy() != 224 {
		t.Errorf("expected 224x224, got %dx%d", bounds.Dx(), bounds.Dy())
	}
	// Grayscale variant
	imgGray := SpectrogramImageFromSamples(samples, sampleRate, false, 224)
	if imgGray == nil {
		t.Error("expected non-nil grayscale image")
	}
	// Empty samples
	imgEmpty := SpectrogramImageFromSamples(nil, sampleRate, true, 224)
	if imgEmpty != nil {
		t.Error("expected nil for empty samples")
	}
}

Insertion in utils/spectrogram.go at line 4 [4.62723]
[4.62748]
[4.62748]
```
	"fmt"
```
Insertion in utils/spectrogram.go at line 7 [4.62723]
[4.62765]
[4.62765]
```
	"os"
	"path/filepath"
```

Insertion in utils/spectrogram.go at line 192 [4.62723]

[4.67624]


// SpectrogramImageFromSamples generates a spectrogram image from audio samples.
// This is the core pipeline: spectrogram -> colormap/grayscale -> image -> resize.
// Use this when you already have samples (e.g., after bandpass filtering).
func SpectrogramImageFromSamples(samples []float64, sampleRate int, color bool, imgSize int) image.Image {
	if len(samples) == 0 {
		return nil
	}
	config := DefaultSpectrogramConfig(sampleRate)
	spectrogram := GenerateSpectrogram(samples, config)
	if spectrogram == nil {
		return nil
	}

Insertion in utils/spectrogram.go at line 207 [4.62723]

[4.67625]

	var img image.Image
	if color {
		colorData := ApplyL4Colormap(spectrogram)
		img = CreateRGBImage(colorData)
	} else {
		img = CreateGrayscaleImage(spectrogram)
	}
	if img == nil {
		return nil
	}
	imgSize = ClampImageSize(imgSize)
	return ResizeImage(img, imgSize, imgSize)
}

Deletion in utils/spectrogram.go at line 241 [4.62723]
∅:D[5.206] → [4.68463:68494]
∅:D[6.8840] → [4.68463:68494]
B:BD[4.68463] → [4.68463:68494]
```
	spectSampleRate := sampleRate
```
Replacement in utils/spectrogram.go at line 243 [4.62723]
B:BD[5.321] → [5.321:362]
```
		spectSampleRate = DefaultMaxSampleRate
```
[5.321]
[4.68649]
```
		sampleRate = DefaultMaxSampleRate
```

Insertion in utils/spectrogram.go at line 245 [4.62723]

[4.68652]


	img := SpectrogramImageFromSamples(segSamples, sampleRate, color, imgSize)
	return img, nil
}

Replacement in utils/spectrogram.go at line 250 [4.62723]

B:BD[4.68653] → [4.68653:68830]

	// Generate spectrogram
	config := DefaultSpectrogramConfig(spectSampleRate)
	spectrogram := GenerateSpectrogram(segSamples, config)
	if spectrogram == nil {
		return nil, nil

[4.68653]

[4.68830]

// WritePNGFile writes an image to a PNG file. Uses O_EXCL to atomically fail
// if the file already exists. Returns an error with path context on failure.
func WritePNGFile(path string, img image.Image) error {
	file, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_EXCL, 0644)
	if err != nil {
		if os.IsExist(err) {
			return fmt.Errorf("file already exists: %s", path)
		}
		return fmt.Errorf("failed to create PNG: %w", err)

Insertion in utils/spectrogram.go at line 260 [4.62723]

[4.68833]

	if err := WritePNG(img, file); err != nil {
		_ = file.Close()
		return fmt.Errorf("failed to write PNG: %w", err)
	}
	if err := file.Close(); err != nil {
		return fmt.Errorf("failed to close PNG: %w", err)
	}
	return nil
}
// ClipBaseName generates the base filename for a clip in the format:
// prefix_basename_startTime_endTime
// Times are integers (floor for start, ceil for end).
func ClipBaseName(prefix, basename string, startTime, endTime float64) string {
	startInt := int(math.Floor(startTime))
	endInt := int(math.Ceil(endTime))
	return fmt.Sprintf("%s_%s_%d_%d", prefix, basename, startInt, endInt)
}

Replacement in utils/spectrogram.go at line 279 [4.62723]

B:BD[4.68834] → [4.68834:69035]

	// Create image (grayscale or color)
	var img image.Image
	if color {
		colorData := ApplyL4Colormap(spectrogram)
		img = CreateRGBImage(colorData)
	} else {
		img = CreateGrayscaleImage(spectrogram)

[4.68834]

[4.69035]

// ClipPaths returns full PNG and WAV paths for a clip in the given output directory.
// Also checks that neither file exists. Returns an error if files exist.
func ClipPaths(outputDir, prefix, basename string, startTime, endTime float64) (pngPath, wavPath string, err error) {
	baseName := ClipBaseName(prefix, basename, startTime, endTime)
	pngPath = filepath.Join(outputDir, baseName+".png")
	wavPath = filepath.Join(outputDir, baseName+".wav")
	if _, err := os.Stat(pngPath); err == nil {
		return "", "", fmt.Errorf("file already exists: %s", pngPath)

Replacement in utils/spectrogram.go at line 289 [4.62723]

B:BD[4.69038] → [4.69038:69073]

	if img == nil {
		return nil, nil

[4.69038]

[4.69073]

	if _, err := os.Stat(wavPath); err == nil {
		return "", "", fmt.Errorf("file already exists: %s", wavPath)

Insertion in utils/spectrogram.go at line 292 [4.62723]
[4.69076]
[4.69076]
```
	return pngPath, wavPath, nil
}
```

Replacement in utils/spectrogram.go at line 295 [4.62723]

B:BD[4.69077] → [4.69077:69171]

	// Resize
	imgSize = ClampImageSize(imgSize)
	return ResizeImage(img, imgSize, imgSize), nil

[4.69077]

[4.69171]

// WAVBasename extracts the base filename from a .data file path.
// E.g., "/path/to/file.wav.data" -> "file".
func WAVBasename(dataFilePath string) string {
	wavPath := strings.TrimSuffix(dataFilePath, ".data")
	basename := filepath.Base(wavPath)
	return strings.TrimSuffix(basename, filepath.Ext(basename))

File deletion: spectrogram.go

BF:BFD[4.227139] → [2.16223:16261]

BF:BFD[2.16261] → [2.13272:13272]

B:BD[2.13272] → [2.13273:16222]

package tui
import (
	"fmt"
	"image"
	"os"
	tea "charm.land/bubbletea/v2"
	"skraak/tools/calls"
	"skraak/utils"
)
// generateSpectrogramImage creates a resized spectrogram image from a segment.
func generateSpectrogramImage(state *calls.ClassifyState, dataPath string, seg *utils.Segment) image.Image {
	imgSize := state.Config.ImageSize
	if imgSize == 0 {
		imgSize = utils.SpectrogramDisplaySize
	}
	if state.Config.BandpassLow > 0 || state.Config.BandpassHigh > 0 {
		return generateBandpassSpectrogram(state, dataPath, seg, imgSize)
	}
	img, err := utils.GenerateSegmentSpectrogram(dataPath, seg.StartTime, seg.EndTime, state.Config.Color, imgSize)
	if err != nil {
		return nil
	}
	return img
}
// generateBandpassSpectrogram generates a spectrogram from bandpass-shifted audio.
// Reads the segment, applies bandpass+shift+downsample, then generates spectrogram
// from the processed samples.
func generateBandpassSpectrogram(state *calls.ClassifyState, dataPath string, seg *utils.Segment, imgSize int) image.Image {
	wavPath := dataPath[:len(dataPath)-5] // strip ".data"
	samples, sampleRate, err := utils.ReadWAVSegmentSamples(wavPath, seg.StartTime, seg.EndTime)
	if err != nil || len(samples) == 0 {
		return nil
	}
	samples, sampleRate = utils.BandpassShiftFilter(samples, sampleRate, state.Config.BandpassLow, state.Config.BandpassHigh)
	config := utils.DefaultSpectrogramConfig(sampleRate)
	spectrogram := utils.GenerateSpectrogram(samples, config)
	if spectrogram == nil {
		return nil
	}
	var img image.Image
	if state.Config.Color {
		colorData := utils.ApplyL4Colormap(spectrogram)
		img = utils.CreateRGBImage(colorData)
	} else {
		img = utils.CreateGrayscaleImage(spectrogram)
	}
	if img == nil {
		return nil
	}
	imgSize = utils.ClampImageSize(imgSize)
	return utils.ResizeImage(img, imgSize, imgSize)
}
// inlineImageCmd returns a tea.Cmd that generates and writes an inline image
// directly to the terminal, bypassing BubbleTea's renderer.
// gen is the generation at dispatch time; currentGen points to the live counter.
// If they differ when the image is ready, a newer segment change has occurred
// and this image is stale — discard it instead of writing.
func inlineImageCmd(state *calls.ClassifyState, protocol utils.ImageProtocol, gen uint64, currentGen *uint64) func() tea.Msg {
	return func() tea.Msg {
		df := state.CurrentFile()
		seg := state.CurrentSegment()
		if df == nil || seg == nil {
			return nil
		}
		img := generateSpectrogramImage(state, df.FilePath, seg)
		if img == nil {
			return nil
		}
		// Discard if a newer segment change has superseded this one
		if *currentGen != gen {
			return nil
		}
		// Clear previous kitty images before writing new one.
		// Terminal write errors during render are non-recoverable; ignore.
		_ = utils.ClearImages(os.Stdout, protocol)
		_, _ = fmt.Fprint(os.Stdout, "\r\n\r\n")
		_ = utils.WriteImage(img, os.Stdout, protocol)
		return nil
	}
}

File deletion: clip.go

BF:BFD[4.227139] → [2.26229:26260]

BF:BFD[2.26260] → [2.21152:21152]

B:BD[2.21152] → [2.21153:26228]

package tui
import (
	"fmt"
	"image"
	"os"
	"path/filepath"
	"strings"
	"skraak/tools/calls"
	"skraak/utils"
)
// saveClip saves a clip of the current segment to the current working directory
func saveClip(state *calls.ClassifyState, prefix string) error {
	df := state.CurrentFile()
	seg := state.CurrentSegment()
	if df == nil || seg == nil {
		return fmt.Errorf("no segment selected")
	}
	pngPath, wavOutPath, err := buildClipPaths(df, seg, prefix)
	if err != nil {
		return err
	}
	segSamples, outputSampleRate, err := loadFilteredSegment(state, df, seg)
	if err != nil {
		return err
	}
	// Generate spectrogram image
	resized, err := generateClipSpectrogram(segSamples, outputSampleRate)
	if err != nil {
		return err
	}
	// Write output files
	if err := writeClipPNG(resized, pngPath); err != nil {
		return err
	}
	if err := utils.WriteWAVFile(wavOutPath, segSamples, outputSampleRate); err != nil {
		return fmt.Errorf("failed to write WAV: %w", err)
	}
	return nil
}
// loadFilteredSegment reads, bandpass-shifts, and downsamples a segment's audio.
func loadFilteredSegment(state *calls.ClassifyState, df *utils.DataFile, seg *utils.Segment) ([]float64, int, error) {
	wavPath := df.FilePath[:len(df.FilePath)-5] // strip ".data"
	segSamples, sampleRate, err := utils.ReadWAVSegmentSamples(wavPath, seg.StartTime, seg.EndTime)
	if err != nil {
		return nil, 0, fmt.Errorf("failed to read WAV: %w", err)
	}
	if len(segSamples) == 0 {
		return nil, 0, fmt.Errorf("no samples in segment")
	}
	// Apply bandpass+shift+downsample if configured
	if state.Config.BandpassLow > 0 || state.Config.BandpassHigh > 0 {
		segSamples, sampleRate = utils.BandpassShiftFilter(segSamples, sampleRate, state.Config.BandpassLow, state.Config.BandpassHigh)
		return segSamples, sampleRate, nil
	}
	// No bandpass: downsample if sample rate exceeds default
	if sampleRate > utils.DefaultMaxSampleRate {
		segSamples = utils.ResampleRate(segSamples, sampleRate, utils.DefaultMaxSampleRate)
		sampleRate = utils.DefaultMaxSampleRate
	}
	return segSamples, sampleRate, nil
}
// writeClipPNG writes a spectrogram image to a PNG file with proper cleanup.
func writeClipPNG(img image.Image, path string) error {
	pngFile, err := os.Create(path)
	if err != nil {
		return fmt.Errorf("failed to create PNG: %w", err)
	}
	if err := utils.WritePNG(img, pngFile); err != nil {
		_ = pngFile.Close()
		return fmt.Errorf("failed to write PNG: %w", err)
	}
	if err := pngFile.Close(); err != nil {
		return fmt.Errorf("failed to close PNG: %w", err)
	}
	return nil
}
// buildClipPaths constructs output file paths for a clip and checks they don't already exist.
func buildClipPaths(df *utils.DataFile, seg *utils.Segment, prefix string) (pngPath, wavOutPath string, err error) {
	wavPath := df.FilePath[:len(df.FilePath)-5] // strip ".data"
	basename := wavPath[strings.LastIndex(wavPath, "/")+1:]
	basename = strings.TrimSuffix(basename, ".wav")
	startInt := int(seg.StartTime)
	endInt := int(seg.EndTime)
	if seg.EndTime > float64(endInt) {
		endInt++
	}
	cwd, err := os.Getwd()
	if err != nil {
		return "", "", fmt.Errorf("failed to get working directory: %w", err)
	}
	baseName := fmt.Sprintf("%s_%s_%d_%d", prefix, basename, startInt, endInt)
	pngPath = filepath.Join(cwd, baseName+".png")
	wavOutPath = filepath.Join(cwd, baseName+".wav")
	if _, err := os.Stat(pngPath); err == nil {
		return "", "", fmt.Errorf("file already exists: %s", pngPath)
	}
	if _, err := os.Stat(wavOutPath); err == nil {
		return "", "", fmt.Errorf("file already exists: %s", wavOutPath)
	}
	return pngPath, wavOutPath, nil
}
// generateClipSpectrogram generates a 224px color spectrogram image from audio samples.
func generateClipSpectrogram(segSamples []float64, sampleRate int) (image.Image, error) {
	config := utils.DefaultSpectrogramConfig(sampleRate)
	spectrogram := utils.GenerateSpectrogram(segSamples, config)
	if spectrogram == nil {
		return nil, fmt.Errorf("failed to generate spectrogram")
	}
	colorData := utils.ApplyL4Colormap(spectrogram)
	img := utils.CreateRGBImage(colorData)
	if img == nil {
		return nil, fmt.Errorf("failed to create image")
	}
	return utils.ResizeImage(img, 224, 224), nil
}
// playCurrentSegmentAtSpeed loads and plays the current segment's audio at the given speed.
// speed=1.0 is normal, speed=0.5 is half speed.
// Returns an error message string, or empty string on success.
func playCurrentSegmentAtSpeed(state *calls.ClassifyState, speed float64) string {
	df := state.CurrentFile()
	seg := state.CurrentSegment()
	if df == nil || seg == nil {
		return ""
	}
	segSamples, playSampleRate, err := loadFilteredSegment(state, df, seg)
	if err != nil {
		return fmt.Sprintf("audio: %v", err)
	}
	// Initialize player lazily on first play
	if state.Player == nil {
		player, err := utils.NewAudioPlayer(playSampleRate)
		if err != nil {
			return fmt.Sprintf("audio init: %v", err)
		}
		state.Player = player
	}
	if len(segSamples) > 0 {
		state.PlaybackSpeed = speed
		state.Player.PlayAtSpeed(segSamples, playSampleRate, speed)
	}
	return ""
}

Insertion in tui/update.go at line 4 [2.3875]
[2.3898]
[2.3898]
```
	"fmt"
	"image"
	"os"
```
Insertion in tui/update.go at line 13 [2.3875]
[2.3972]
[2.3972]
```
	"skraak/utils"
```

Replacement in tui/update.go at line 36 [2.3875]

B:BD[2.4583] → [2.4583:4677]

	return tea.Sequence(tea.ClearScreen, inlineImageCmd(m.state, m.protocol(), gen, m.imageGen))

[2.4583]

[2.4677]

	return tea.Sequence(tea.ClearScreen, m.inlineImageCmd(gen, m.imageGen))

Replacement in tui/update.go at line 97 [2.3875]

B:BD[2.6237] → [2.6237:6310]

		if errMsg := playCurrentSegmentAtSpeed(m.state, speed); errMsg != "" {

[2.6237]

[2.6310]

		if errMsg := m.state.PlaySegmentAtSpeed(speed); errMsg != "" {

Replacement in tui/update.go at line 348 [2.3875]

B:BD[2.12241] → [2.12241:12501]

		if m.clipInput == "" {
			m.clipMode = false
			return m, nil
		}
		// Save the clip
		err := saveClip(m.state, m.clipInput)
		if err != nil {
			m.err = err.Error()
		} else {
			m.err = "Clip saved: " + m.clipInput
		}
		m.clipMode = false
		return m, nil

[2.12241]

[2.12501]

		return m.handleClipEnter()

Replacement in tui/update.go at line 366 [2.3875]

B:BD[2.12839] → [2.12839:12924]

	s := msg.String()
	if len(s) == 1 && s[0] >= 32 && s[0] <= 126 { // printable ASCII

[2.12839]

[2.12924]

	return m.handleClipPrintable(msg.String())
}
// handleClipEnter handles Enter key in clip mode.
func (m Model) handleClipEnter() (tea.Model, tea.Cmd) {
	if m.clipInput == "" {
		m.clipMode = false
		return m, nil
	}
	m.clipMode = false
	cwd, err := os.Getwd()
	if err != nil {
		m.err = err.Error()
		return m, nil
	}
	_, err = m.state.SaveClip(cwd, m.clipInput)
	if err != nil {
		m.err = err.Error()
	} else {
		m.err = "Clip saved: " + m.clipInput
	}
	return m, nil
}
// handleClipPrintable handles printable character input in clip mode.
func (m Model) handleClipPrintable(s string) (tea.Model, tea.Cmd) {
	if len(s) == 1 && s[0] >= 32 && s[0] <= 126 {

Deletion in tui/update.go at line 398 [2.3875]
B:BD[2.12994] → [2.12994:13010]
```
		return m, nil
```
Deletion in tui/update.go at line 399 [2.3875]
B:BD[2.13013] → [2.13013:13014]

Insertion in tui/update.go at line 408 [2.3875]

[2.13236]


// inlineImageCmd returns a tea.Cmd that generates and writes an inline image
// directly to the terminal, bypassing BubbleTea's renderer.
// gen is the generation at dispatch time; currentGen points to the live counter.
// If they differ when the image is ready, a newer segment change has occurred
// and this image is stale — discard it instead of writing.
func (m Model) inlineImageCmd(gen uint64, currentGen *uint64) tea.Cmd {
	return func() tea.Msg {
		df := m.state.CurrentFile()
		seg := m.state.CurrentSegment()
		if df == nil || seg == nil {
			return nil
		}
		img := m.generateSpectrogramImage(df.FilePath, seg)
		if img == nil {
			return nil
		}
		// Discard if a newer segment change has superseded this one
		if *currentGen != gen {
			return nil
		}
		// Clear previous kitty images before writing new one.
		// Terminal write errors during render are non-recoverable; ignore.
		_ = utils.ClearImages(os.Stdout, m.protocol())
		_, _ = fmt.Fprint(os.Stdout, "\r\n\r\n")
		_ = utils.WriteImage(img, os.Stdout, m.protocol())
		return nil
	}
}
// generateSpectrogramImage creates a resized spectrogram image from a segment.
func (m Model) generateSpectrogramImage(dataPath string, seg *utils.Segment) image.Image {
	imgSize := m.state.Config.ImageSize
	if imgSize == 0 {
		imgSize = utils.SpectrogramDisplaySize
	}
	// For bandpass, load and filter samples manually
	if m.state.Config.BandpassLow > 0 || m.state.Config.BandpassHigh > 0 {
		wavPath := dataPath[:len(dataPath)-5] // strip ".data"
		samples, sampleRate, err := utils.ReadWAVSegmentSamples(wavPath, seg.StartTime, seg.EndTime)
		if err != nil || len(samples) == 0 {
			return nil
		}
		samples, sampleRate = utils.BandpassShiftFilter(samples, sampleRate, m.state.Config.BandpassLow, m.state.Config.BandpassHigh)
		return utils.SpectrogramImageFromSamples(samples, sampleRate, m.state.Config.Color, imgSize)
	}
	// Standard path
	img, err := utils.GenerateSegmentSpectrogram(dataPath, seg.StartTime, seg.EndTime, m.state.Config.Color, imgSize)
	if err != nil {
		return nil
	}
	return img
}

Replacement in tui/model.go at line 136 [2.16263]

B:BD[2.19440] → [2.19440:19511]

	return inlineImageCmd(m.state, m.protocol(), *m.imageGen, m.imageGen)

[2.19440]

[2.19511]

	return m.inlineImageCmd(*m.imageGen, m.imageGen)

Deletion in tools/calls/calls_clip.go at line 5 [7.257886]
B:BD[7.257918] → [7.257918:257935]
```
	"image"
	"math"
```

Replacement in tools/calls/calls_clip.go at line 335 [7.257886]

B:BD[7.268783] → [7.268783:268803]

	var files []string

[7.268783]

[7.268803]

	// Build paths (ClipPaths checks for existing files)
	pngPath, wavPath, err := utils.ClipPaths(outputDir, prefix, basename, startTime, endTime)
	if err != nil {
		return nil, err
	}

Deletion in tools/calls/calls_clip.go at line 341 [7.257886]

B:BD[7.268804] → [7.268804:269076]

	// Calculate integer times for filename
	startInt := int(math.Floor(startTime))
	endInt := int(math.Ceil(endTime))
	// Build base filename
	baseName := fmt.Sprintf("%s_%s_%d_%d", prefix, basename, startInt, endInt)
	wavPath := filepath.Join(outputDir, baseName+".wav")

Replacement in tools/calls/calls_clip.go at line 347 [7.257886]
B:BD[7.269269] → [7.269269:269358]
```
	// Determine output sample rate (downsample if > 16kHz)
	outputSampleRate := sampleRate
```
[7.269269]
[7.269358]
```
	// Downsample if > 16kHz
```
Replacement in tools/calls/calls_clip.go at line 350 [7.257886]
B:BD[7.269490] → [7.269490:269538]
```
		outputSampleRate = utils.DefaultMaxSampleRate
```
[7.269490]
[7.269538]
```
		sampleRate = utils.DefaultMaxSampleRate
```

Replacement in tools/calls/calls_clip.go at line 353 [7.257886]

B:BD[7.269542] → [7.269542:269780]

	pngPath := filepath.Join(outputDir, baseName+".png")
	spectSampleRate := outputSampleRate
	config := utils.DefaultSpectrogramConfig(spectSampleRate)
	spectrogram := utils.GenerateSpectrogram(segSamples, config)
	if spectrogram == nil {

[7.269542]

[7.269780]

	// Generate spectrogram image
	img := utils.SpectrogramImageFromSamples(segSamples, sampleRate, color, imgSize)
	if img == nil {

Replacement in tools/calls/calls_clip.go at line 359 [7.257886]

B:BD[7.269843] → [7.269843:270133]

	// Create image (grayscale or color)
	var img image.Image
	if color {
		colorData := utils.ApplyL4Colormap(spectrogram)
		img = utils.CreateRGBImage(colorData)
	} else {
		img = utils.CreateGrayscaleImage(spectrogram)
	}
	if img == nil {
		return nil, fmt.Errorf("failed to create image")

[7.269843]

[7.270133]

	// Write PNG
	if err := utils.WritePNGFile(pngPath, img); err != nil {
		return nil, err

Deletion in tools/calls/calls_clip.go at line 364 [7.257886]

B:BD[7.270137] → [7.270137:270766]

	resized := utils.ResizeImage(img, imgSize, imgSize)
	// Write PNG (O_EXCL fails atomically if file exists)
	pngFile, err := os.OpenFile(pngPath, os.O_WRONLY|os.O_CREATE|os.O_EXCL, 0644)
	if err != nil {
		if os.IsExist(err) {
			return nil, fmt.Errorf("file already exists: %s", pngPath)
		}
		return nil, fmt.Errorf("failed to create PNG: %w", err)
	}
	if err := utils.WritePNG(resized, pngFile); err != nil {
		_ = pngFile.Close()
		return nil, fmt.Errorf("failed to write PNG: %w", err)
	}
	if err := pngFile.Close(); err != nil {
		return nil, fmt.Errorf("failed to close PNG: %w", err)
	}
	files = append(files, pngPath)

Replacement in tools/calls/calls_clip.go at line 365 [7.257886]

B:BD[7.270780] → [7.270780:270863]

	if err := utils.WriteWAVFile(wavPath, segSamples, outputSampleRate); err != nil {

[7.270780]

[7.270863]

	if err := utils.WriteWAVFile(wavPath, segSamples, sampleRate); err != nil {

Deletion in tools/calls/calls_clip.go at line 368 [7.257886]
B:BD[7.270923] → [7.270923:270955]
```
	files = append(files, wavPath)
```
Replacement in tools/calls/calls_clip.go at line 369 [7.257886]
B:BD[7.270956] → [7.270956:270975]
```
	return files, nil
```
[7.270956]
[7.270975]
```
	return []string{pngPath, wavPath}, nil
```

Insertion in tools/calls/calls_classify.go at line 707 [7.292067]

[7.310561]


// LoadFilteredSegment reads, bandpass-shifts, and downsamples a segment's audio.
// Returns samples and effective sample rate after any filtering/downsampling.
func (s *ClassifyState) LoadFilteredSegment(df *utils.DataFile, seg *utils.Segment) ([]float64, int, error) {
	wavPath := df.FilePath[:len(df.FilePath)-5] // strip ".data"
	segSamples, sampleRate, err := utils.ReadWAVSegmentSamples(wavPath, seg.StartTime, seg.EndTime)
	if err != nil {
		return nil, 0, fmt.Errorf("failed to read WAV: %w", err)
	}
	if len(segSamples) == 0 {
		return nil, 0, fmt.Errorf("no samples in segment")
	}
	// Apply bandpass+shift+downsample if configured
	if s.Config.BandpassLow > 0 || s.Config.BandpassHigh > 0 {
		segSamples, sampleRate = utils.BandpassShiftFilter(segSamples, sampleRate, s.Config.BandpassLow, s.Config.BandpassHigh)
		return segSamples, sampleRate, nil
	}
	// No bandpass: downsample if sample rate exceeds default
	if sampleRate > utils.DefaultMaxSampleRate {
		segSamples = utils.ResampleRate(segSamples, sampleRate, utils.DefaultMaxSampleRate)
		sampleRate = utils.DefaultMaxSampleRate
	}
	return segSamples, sampleRate, nil
}
// SaveClip saves a spectrogram PNG and WAV of the current segment to outputDir.
// The prefix is prepended to the filename.
func (s *ClassifyState) SaveClip(outputDir, prefix string) ([]string, error) {
	df := s.CurrentFile()
	seg := s.CurrentSegment()
	if df == nil || seg == nil {
		return nil, fmt.Errorf("no segment selected")
	}
	basename := utils.WAVBasename(df.FilePath)
	pngPath, wavPath, err := utils.ClipPaths(outputDir, prefix, basename, seg.StartTime, seg.EndTime)
	if err != nil {
		return nil, err
	}
	segSamples, sampleRate, err := s.LoadFilteredSegment(df, seg)
	if err != nil {
		return nil, err
	}
	// Generate spectrogram image (always color, 224px for clips)
	img := utils.SpectrogramImageFromSamples(segSamples, sampleRate, true, 224)
	if img == nil {
		return nil, fmt.Errorf("failed to generate spectrogram")
	}
	if err := utils.WritePNGFile(pngPath, img); err != nil {
		return nil, err
	}
	if err := utils.WriteWAVFile(wavPath, segSamples, sampleRate); err != nil {
		return nil, fmt.Errorf("failed to write WAV: %w", err)
	}
	return []string{pngPath, wavPath}, nil
}
// PlaySegmentAtSpeed loads and plays the current segment's audio at the given speed.
// speed=1.0 is normal, speed=0.5 is half speed.
// Returns an error message string, or empty string on success.
func (s *ClassifyState) PlaySegmentAtSpeed(speed float64) string {
	df := s.CurrentFile()
	seg := s.CurrentSegment()
	if df == nil || seg == nil {
		return ""
	}
	segSamples, playSampleRate, err := s.LoadFilteredSegment(df, seg)
	if err != nil {
		return fmt.Sprintf("audio: %v", err)
	}
	// Initialize player lazily on first play
	if s.Player == nil {
		player, err := utils.NewAudioPlayer(playSampleRate)
		if err != nil {
			return fmt.Sprintf("audio init: %v", err)
		}
		s.Player = player
	}
	if len(segSamples) > 0 {
		s.PlaybackSpeed = speed
		s.Player.PlayAtSpeed(segSamples, playSampleRate, speed)
	}
	return ""
}

refactor of tui/ second iteration

Dependencies

In channels

Change contents

Insertion in utils/spectrogram_test.go at line 4 [3.793]

Insertion in utils/spectrogram_test.go at line 52 [3.793]

Insertion in utils/spectrogram_test.go at line 146 [3.793]

Insertion in utils/spectrogram.go at line 4 [4.62723]

Insertion in utils/spectrogram.go at line 7 [4.62723]

Insertion in utils/spectrogram.go at line 192 [4.62723]

Insertion in utils/spectrogram.go at line 207 [4.62723]

Deletion in utils/spectrogram.go at line 241 [4.62723]

Replacement in utils/spectrogram.go at line 243 [4.62723]

Insertion in utils/spectrogram.go at line 245 [4.62723]

Replacement in utils/spectrogram.go at line 250 [4.62723]

Insertion in utils/spectrogram.go at line 260 [4.62723]

Replacement in utils/spectrogram.go at line 279 [4.62723]

Replacement in utils/spectrogram.go at line 289 [4.62723]

Insertion in utils/spectrogram.go at line 292 [4.62723]

Replacement in utils/spectrogram.go at line 295 [4.62723]

File deletion: spectrogram.go

File deletion: clip.go

Insertion in tui/update.go at line 4 [2.3875]

Insertion in tui/update.go at line 13 [2.3875]

Replacement in tui/update.go at line 36 [2.3875]

Replacement in tui/update.go at line 97 [2.3875]

Replacement in tui/update.go at line 348 [2.3875]

Replacement in tui/update.go at line 366 [2.3875]

Deletion in tui/update.go at line 398 [2.3875]

Deletion in tui/update.go at line 399 [2.3875]

Insertion in tui/update.go at line 408 [2.3875]

Replacement in tui/model.go at line 136 [2.16263]

Deletion in tools/calls/calls_clip.go at line 5 [7.257886]

Replacement in tools/calls/calls_clip.go at line 335 [7.257886]

Deletion in tools/calls/calls_clip.go at line 341 [7.257886]

Replacement in tools/calls/calls_clip.go at line 347 [7.257886]

Replacement in tools/calls/calls_clip.go at line 350 [7.257886]

Replacement in tools/calls/calls_clip.go at line 353 [7.257886]

Replacement in tools/calls/calls_clip.go at line 359 [7.257886]

Deletion in tools/calls/calls_clip.go at line 364 [7.257886]

Replacement in tools/calls/calls_clip.go at line 365 [7.257886]

Deletion in tools/calls/calls_clip.go at line 368 [7.257886]

Replacement in tools/calls/calls_clip.go at line 369 [7.257886]

Insertion in tools/calls/calls_classify.go at line 707 [7.292067]