## timer in seconds between retries
$sleepTimer = 30
## Replace [ZIPCODE] with your zipcode
$api = 'https://api.target.com/fulfillment_aggregator/v1/fiats/81114595?key=ff457966e64d5e877fdbad070f276d18ecec4a01&nearby=[ZIPCODE]&limit=20&requested_quantity=1&radius=50&fulfillment_test_mode=grocery_opu_team_member_test'

## replace with your email and password - this is just for gmail
## if you use 2 factor authentication for google use the link below on how to create an app password
## https://support.teamgate.com/hc/en-us/articles/115002064229-How-to-create-a-password-to-connect-email-while-using-2-step-verification-in-Gmail-

$email = "[email protected]"
$pass = "yourpassword"

$headers = @{
  "authority"="api.target.com"
  "scheme"="https"
  ## Change [ZIPCODE] here as well
  "path"="/fulfillment_aggregator/v1/fiats/81114595?key=ff457966e64d5e877fdbad070f276d18ecec4a01&nearby=[ZIPCODE]&limit=20&requested_quantity=1&radius=50&fulfillment_test_mode=grocery_opu_team_member_test"
  "accept"="application/json"
  "user-agent"="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.67 Safari/537.36 Edg/87.0.664.47"
  "dnt"="1"
  "origin"="https://www.target.com"
  "sec-fetch-site"="same-site"
  "sec-fetch-mode"="cors"
  "sec-fetch-dest"="empty"
  "referer"="https://www.target.com/p/playstation-5-console/-/A-81114595"
  "accept-encoding"="gzip, deflate, br"
  "accept-language"="en-US,en;q=0.9"
  "Cache-Control"="no-cache"
}

function Send-Email {
Param ([string]$body)


    $smtpServer = "smtp.gmail.com"

    $msg = new-object Net.Mail.MailMessage
    $smtp = new-object Net.Mail.SmtpClient($smtpServer)
    $smtp.EnableSsl = $true
    $msg.From = "$email"
    $msg.To.Add("$email")
    $msg.BodyEncoding = [system.Text.Encoding]::UTF8
    $msg.SubjectEncoding = [system.Text.Encoding]::UTF8
    $msg.IsBodyHTML = $false
    $msg.Subject = "TARGET IS IN STOCK"
    $msg.Body = $body
    $SMTP.Credentials = New-Object System.Net.NetworkCredential("$email", "$pass");
    $smtp.Send($msg)
}

function Is-In-Stock {
Param ([Object[]]$a)

    $itemInStock = 0;
    $locations = "";
    $foundLocations = "";
    foreach ($i in $a.locations)
    {
        $storeInfo = $i.store_name+" "+$i.order_pickup.availability_status+" "+ $i.in_store_only.availability_status+" "+$i.location_available_to_promise_quantity+"`n"
        $locations = $locations+$storeInfo

        if ($i.location_available_to_promise_quantity -gt 0 -Or $i.order_pickup.availability_status -eq "IN_STOCK" -Or $i.in_store_only.availability_status -eq "IN_STOCK") {
            $foundLocations = $foundLocations+$storeInfo;
            $itemInStock += 1;
        }
    }
    if ($itemInStock -gt 0) {
        Send-Email $foundLocations
    }
    Write-Host $locations
    return $itemInStock;
}

do
{
    try {
        $timeStamp = [int][double]::Parse((Get-Date -UFormat %s))
        $stampedApi = $api+"&tstmp="+$timestamp
        $response = Invoke-RestMethod -Uri ($stampedApi) -Method "GET" -Headers $headers

        Write-Host $timeStamp
        $productList = $response.products
        $isInStock = Is-In-Stock ($productList)
    } catch {
        $isInStock = 0
        Write-Host 'Request Failed'
    }

  Start-Sleep -s $sleepTimer
}
until($isInStock -gt 0)