[int] $schedule = $ENV:SCHEDULE
[string] $gluetunForwardedPortFile = $ENV:GLUETUNFORWARDEDPORTFILE
[string] $qbtHost = $ENV:QBTHOST
[string] $qbtPort = $ENV:QBTPORT
[string] $qbtUser = $ENV:QBTUSER
[string] $qbtPassword = $ENV:QBTPASSWORD
[string] $notificationWebhookURL = $ENV:NOTIFICATIONWEBHOOKURL
[string] $discordWebhookURL = $ENV:DISCORDWEBHOOKURL
[string] $appriseWebhookURL = $ENV:APPRISEWEBHOOKURL
[string] $appriseWebhookTag = $ENV:APPRISEWEBHOOKTAG

while ($true)
{
    $gluetunForwardedPort = Get-Content $gluetunForwardedPortFile
    Write-Host "Current forwarded port: $gluetunForwardedPort"
    
    $qbtHeaders = @{
        Referer = "http://$($qbtHost):$($qbtPort)"
    }
    $qbtBody = @{
        username = $qbtUser
        password = $qbtPassword
    }
    $qbtSession = [Microsoft.PowerShell.Commands.WebRequestSession]::new()
    $qbtResponse = Invoke-WebRequest -Uri "http://$($qbtHost):$($qbtPort)/api/v2/auth/login" -WebSession $qbtSession -Method POST -Headers $qbtHeaders -Body $qbtBody
    
    $qbtQueryResponse = Invoke-WebRequest -Uri "http://$($qbtHost):$($qbtPort)/api/v2/app/preferences" -WebSession $qbtSession -Method GET
    $qbtListenPort = (ConvertFrom-Json $qbtQueryResponse.Content).listen_port
    Write-Host "Current QBT Listening port: $qbtListenPort"

    if ($gluetunForwardedPort -eq $qbtListenPort)
    {
        Write-Host "Ports match!"
    }
    else
    {
        $qbtPortChangeBody = 'json={"listen_port":' + $gluetunForwardedPort + '}'
        $qbtPortChangeResponse = Invoke-WebRequest -Uri "http://$($qbtHost):$($qbtPort)/api/v2/app/setPreferences" -WebSession $qbtSession -Method POST -Headers $qbtHeaders -Body $qbtPortChangeBody
        if ($notificationWebhookURL -or $discordWebhookURL)
        {
            if ($discordWebhookURL) { $notificationWebhookURL = $discordWebhookURL }
            $headers = @{
                "Content-Type"="application/json"
            }
            $body = @{
                content="QBitTorrent Listening Port updated to $gluetunForwardedPort"
            }
            $json = $body | ConvertTo-Json
            Invoke-WebRequest -URI $notificationWebhookURL -Method post -Body $json -Headers $headers
        }
        elseif ($appriseWebhookURL)
        {
            $headers = @{
                "Content-Type"="application/json"
            }
            $body = @{
                title="QBitTorrent Port Manager"
                body="QBitTorrent Listening Port updated to $gluetunForwardedPort"
                tags="$appriseWebhookTag"
            }
            $json = $body | ConvertTo-Json
            Invoke-WebRequest -URI $appriseWebhookURL -Method post -Body $json -Headers $headers
        }
    }
    Write-Host "Sleeping for $schedule minutes..."
    Start-Sleep ($schedule * 60)
}