Queue Suno WAV candidates with local retry

process-suno-library.ps1

@@ -3,6 +3,8 @@ param(
     [string]$OutputRoot = "\\VaultOfData\AKAMedia\음악\처리됨",
     [string]$ArtistName = "SUNO",
     [string]$FfmpegPath = "",
+    [int]$WavRetrySeconds = 300,
+    [int]$WavRetryIntervalSeconds = 8,
     [switch]$KeepWorkFiles,
     [switch]$Force
 )
@@ -233,6 +235,37 @@ function Invoke-Download {
     }
 }
 
+function Invoke-DownloadWithRetry {
+    param(
+        [string[]]$Urls,
+        [string]$OutFile,
+        [int]$RetrySeconds,
+        [int]$IntervalSeconds
+    )
+
+    $candidates = @($Urls | Where-Object { $_ } | Select-Object -Unique)
+    if (-not $candidates.Count) { return $false }
+
+    $deadline = (Get-Date).AddSeconds([Math]::Max(1, $RetrySeconds))
+    $attempt = 0
+    do {
+        $attempt++
+        foreach ($candidate in $candidates) {
+            Write-Host "WAV 후보 시도 #$attempt`: $candidate"
+            if (Invoke-Download $candidate $OutFile) {
+                return $true
+            }
+        }
+
+        if ((Get-Date) -lt $deadline) {
+            Write-Host "WAV 아직 준비 안 됨. $IntervalSeconds초 후 재시도..."
+            Start-Sleep -Seconds ([Math]::Max(1, $IntervalSeconds))
+        }
+    } while ((Get-Date) -lt $deadline)
+
+    return $false
+}
+
 function Add-MetadataArg {
     param(
         [System.Collections.Generic.List[string]]$Args,
@@ -392,12 +425,7 @@ foreach ($track in $tracks) {
         continue
     }
 
-    $audioOk = $false
-    foreach ($candidate in $wavCandidates) {
-        Write-Host "WAV 후보 시도: $candidate"
-        $audioOk = Invoke-Download $candidate $inputAudio
-        if ($audioOk) { break }
-    }
+    $audioOk = Invoke-DownloadWithRetry $wavCandidates $inputAudio $WavRetrySeconds $WavRetryIntervalSeconds
     if (-not $audioOk) {
         Write-Warning "WAV를 받지 못해서 건너뜀: $title"
         continue