$content = Get-Content 'j:\Softwareprojekte\IBKRTrader\IBKRTrader\ct_raw.html' -Raw

# Simuliere UnescapeHtmlPayload
$marker = 'self.__next_f.push([1,"'
$searchFrom = 0
$allPayload = ""

while ($true) {
    $idx = $content.IndexOf($marker, $searchFrom)
    if ($idx -lt 0) { break }
    
    $contentStart = $idx + $marker.Length
    
    # Finde Ende des Strings (nicht-escaped ")
    $end = -1
    $i = $contentStart
    while ($i -lt $content.Length) {
        if ($content[$i] -eq '\' ) { $i += 2; continue }
        if ($content[$i] -eq '"' ) { $end = $i; break }
        $i++
    }
    
    if ($end -lt 0) { break }
    
    $chunk = $content.Substring($contentStart, $end - $contentStart)
    # Un-escape \" → "
    $chunk = $chunk -replace '\\"', '"'
    $chunk = $chunk -replace '\\/', '/'
    $allPayload += $chunk
    $searchFrom = $end + 2
}

Write-Host "Payload length: $($allPayload.Length)"

# Finde "data":[ 
$dataIdx = $allPayload.IndexOf('"data":[')
Write-Host "data array at: $dataIdx"

if ($dataIdx -gt 0) {
    Write-Host "=== data array preview (first 500 chars) ==="
    $start = $dataIdx
    $len = [Math]::Min(500, $allPayload.Length - $start)
    Write-Host $allPayload.Substring($start, $len)
    
    # totalPages
    $tpMatch = [regex]::Match($allPayload, '"totalPages"\s*:\s*(\d+)')
    if ($tpMatch.Success) {
        Write-Host ""
        Write-Host "=== totalPages: $($tpMatch.Groups[1].Value) ==="
    }
    
    # _txId Anzahl zählen
    $txCount = ([regex]::Matches($allPayload, '"_txId"')).Count
    Write-Host "=== _txId Vorkommen: $txCount ==="
} else {
    Write-Host "=== KEIN data Array - zeige erste 1000 chars des Payload ==="
    Write-Host $allPayload.Substring(0, [Math]::Min(1000, $allPayload.Length))
}