// "20230610_150000.Table.1.selections.txt" -> "20230610_150000.WAV"

	// "20230610_150000.Table.1.selections.txt" -> "20230610_150000"

	wavBase := nameWithoutSuffix + ".WAV"
	wavPath := filepath.Join(filepath.Dir(ravenFile), wavBase)

	// Find WAV file with correct case
	wavPath := findWAVFile(filepath.Dir(ravenFile), nameWithoutSuffix)
	if wavPath == "" {
		return nil, false, true, nil // WAV not found, skip
	}

// findWAVFile finds a WAV file in the directory with case-insensitive matching.
// baseName is the filename without extension (e.g., "20230610_150000").
// Returns the full path with correct case, or empty string if not found.
func findWAVFile(dir, baseName string) string {
	// Try common extensions in order of preference
	extensions := []string{".WAV", ".wav", ".Wav"}
	for _, ext := range extensions {
		path := filepath.Join(dir, baseName+ext)
		if _, err := os.Stat(path); err == nil {
			return path
		}
	}
	// Try case-insensitive glob as fallback (e.g., .Wav, .wAv, etc.)
	pattern := filepath.Join(dir, baseName+".[wW][aA][vV]")
	matches, _ := filepath.Glob(pattern)
	if len(matches) > 0 {
		return matches[0] // Return first match
	}
	return "" // Not found
}

		wavPath := filepath.Join(csvDir, filename)

		// Find WAV file with correct case
		baseName := strings.TrimSuffix(filename, filepath.Ext(filename))
		wavPath := findWAVFile(csvDir, baseName)
		if wavPath == "" {
			dataFilesSkipped++
			processed++
			if progress != nil {
				progress(processed, total, "")
			}
			continue
		}

		wavPath := filepath.Join(csvDir, job.filename)

		// Find WAV file with correct case
		baseName := strings.TrimSuffix(job.filename, filepath.Ext(job.filename))
		wavPath := findWAVFile(csvDir, baseName)
		if wavPath == "" {
			results <- dotDataResult{filename: job.filename, written: false, err: nil}
			continue
		}

	dir := filepath.Dir(birdaFile)
	base := filepath.Base(birdaFile)
	baseName := strings.TrimSuffix(base, ".BirdNET.results.csv")

		} else {
			// Derive from BirdNET filename (File column may have wrong path)
			base := filepath.Base(birdaFile)
			wavBase := strings.TrimSuffix(base, ".BirdNET.results.csv") + ".WAV"
			wavPath = filepath.Join(filepath.Dir(birdaFile), wavBase)

	} else {
		// Derive from BirdNET filename
		base := filepath.Base(birdaFile)
		wavBase := strings.TrimSuffix(base, ".BirdNET.results.csv") + ".WAV"
		wavPath = filepath.Join(filepath.Dir(birdaFile), wavBase)

	}
	// If not found from File column, search with correct case
	if wavPath == "" {
		wavPath = findWAVFile(dir, baseName)
	}
	if wavPath == "" {
		return nil, false, true, nil // WAV not found, skip

clamp to 16000hz tui and img-show

c=comcha        Chaffinch       Common Chaffinch
d=dunnoc1       Dunnock_Hedge_Sparrow   Dunnock
b=eurbla        Eurasian Blackbird
g=gryger1       Warbler_Grey    Gray Gerygone
k=kea1  Kea     Kea
l=lotkoe1       Long-tailed Koel        Long-tailed Koel
p=malpar2       Kakariki     Malherbe's Parakeet (Orange-fronted Parakeet)                             
m=morepo2       Morepork        Morepork                                               
nezbel1       Bellbird        New Zealand Bellbird
nezfan1       Fantail New Zealand Fantail
nezkak1       Kaka    New Zealand Kaka
nezpig2       New Zealand Pigeon
nezrob3       Robin_Sth_Is    South Island Robin
pipipi1       Pipipi          Brown Creeper
riflem1       Rifleman        Rifleman
saddle3       Saddleback_Sth_Is       South Island Saddleback                        
shbcuc1       Cuckoo_Shining  Shining Bronze-Cuckoo
silver3       Silvereye       Silvereye
sobkiw2       Kiwi_Tokoeka_Haast      Southern Brown Kiwi (South I.)
soioys1       South Island Oystercatcher                 
sonthr1       Thrush_Song     Song Thrush                                            
tomtit1       Tomtit  Tomtit                                          
tui1  Tui     Tui
varoys1       Oystercatcher_Variable  Variable Oystercatcher
yellow2       Yellowhammer    Yellowhammer
PLAN MODE: Great, now that we have done that, lets implemehnt 2 new calls commands:
calls from-birda --folder (or just 1 file with --file) --delete (optional, to delete the birda files as we go)
calls from-raven --folder (or just 1 file with --file) --delete (optional, to delete the raven file as we go)
We need to append birda and raven files to existing .data files, or create a new .data if not present. 
find sample birda files (1 or 0, per WAV) at /media/david/SSD4/Twenty_Four_Seven/R620/2024-05-06/20230610_150000.BirdNET.results.csv (note .BirdNET.results.csv) FILTER=BirdNET
find sample Raven files (1 or 0, per WAV) at /media/david/SSD4/Twenty_Four_Seven/R620/2024-05-06/20230610_150000.Table.1.selections.txt (note Table.$x.selections.txt, could be 1, 2, 3 ..., usually just 1, look for *.selections.txt) FILTER=Raven
Note that both types of csv files are similar to .data files, they refer to a WAV file.
Behaviour must be the same as calls from-preds, no clobber, we do not allow birda or raven files to be imported more than 1 time
We do not allow manual overide for --filter, we always parse from the filename.
filter BirdNET from *.BirdNET.results.csv
filter Raven from *.selections.txt
both new commands should output a json summary of calls parsed in the sae form as the output from calls from-preds cmd
PLAN MODE
   skraak calls from-birda --folder ./recordings
   skraak calls from-birda --file recording.BirdNET.results.csv
   skraak calls from-birda --folder ./recordings --delete
   skraak calls from-raven --folder ./recordings
   skraak calls from-raven --file recording.Table.1.selections.txt
   skraak calls from-raven --folder ./recordings --delete
Should birda, raven, preds tool write WAV or wav in appropriate cirumstances 
comment in tui; editable
bookmark feature ctrl-d

## [2026-03-09] Case-Preserving WAV File Finding
**Fix:** WAV files with lowercase `.wav` extension now produce correct `.wav.data` files.
**Changes:**
- `tools/calls_from_preds.go` — Added `findWAVFile()` helper function
- `tools/calls_from_birda.go` — Updated to use `findWAVFile()`
- `tools/calls_from_raven.go` — Updated to use `findWAVFile()`
**Problem:** Previous code hardcoded `.WAV` extension, causing issues on case-sensitive filesystems:
- `abc.wav` would fail to be found
- Or produce `abc.WAV.data` instead of `abc.wav.data`

**Solution:** `findWAVFile(dir, baseName)` searches for:
1. `.WAV` (most common for main recordings)
2. `.wav` (common for clips)
3. `.Wav` (edge case)
4. Case-insensitive glob fallback
**Result:**
| WAV File | .data File |
|----------|------------|
| `abc.WAV` | `abc.WAV.data` |
| `abc.wav` | `abc.wav.data` |
| `abc.Wav` | `abc.Wav.data` |