# Configuration
$qbittorrentUrl = 'http://localhost:8080'  # Change if necessary
$username = 'your_username'
$password = 'your_password'
$excludedTrackers = @('tracker1.com', 'tracker2.com')

# Function to authenticate and get a session
function Get-QBittorrentSession {
    $session = New-Object System.Net.WebClient
    $session.Headers.Add("Content-Type", "application/x-www-form-urlencoded")
    
    # Authenticate
    $session.UploadString("$qbittorrentUrl/api/v2/auth/login", "username=$username&password=$password")
    return $session
}

# Function to get all torrents
function Get-Torrents {
    param (
        [System.Net.WebClient]$session
    )
    $response = $session.DownloadString("$qbittorrentUrl/api/v2/torrents/info")
    return $response | ConvertFrom-Json
}

# Function to delete a torrent
function Delete-Torrent {
    param (
        [System.Net.WebClient]$session,
        [string]$hash
    )
    $session.UploadString("$qbittorrentUrl/api/v2/torrents/delete", "hashes=$hash")
}

# Main script
$session = Get-QBittorrentSession
$torrents = Get-Torrents -session $session

foreach ($torrent in $torrents) {
    if ($torrent.state -eq 'completed') {
        # Check if any of the excluded trackers are in the torrent's tracker list
        $trackers = $torrent.trackers | ForEach-Object { $_.url }
        if (-not ($trackers | Where-Object { $excludedTrackers -contains $_ })) {
            # Delete the torrent
            Delete-Torrent -session $session -hash $torrent.hash
        }
    }
}

# Logout (optional, but good practice)
$session.UploadString("$qbittorrentUrl/api/v2/auth/logout", "")