# PowerShell script to send an onboarding welcome email with attachments to a user based on their start date

## Thanks CoPilot

# SMTP server configuration
$SMTPServer = "mail.mpe.ca"
$SMTPPort = "25"
$Username = "HelpDesk@mpe.ca"

# Get all users where start date is today, or today + 30 days for Handbook Form.
# extensionAttribute9 = StartDate
# {(extensionAttribute9 -GE (get-date).Date) -and (extensionAttribute9 -GE (get-date).AddDays(1).Date)}


$usersToday = get-aduser -filter * -properties extensionAttribute9, manager, mail | where (Convert-NTTime $_.extensionAttribute9) -EQ  (get-date).date
# $startDate = [System.DateTime]::FromFileTime($usersToday.extensionAttribute9)

$users30Day = get-aduser -filter * -properties extensionAttribute9, manager, mail | where extensionAttribute9 -GE (get-date).AddDays(-30).Date | where extensionAttribute9 -GE (get-date).AddDays(-29).Date 


# function to convert NT Date to Normal.
function Convert-NTTime {
    param (
        [Parameter(Mandatory = $true)]
        [string]$NTDate
    )
    $In_date = [Int64]$NTDate
    $returnDate = [System.DateTime]::FromFileTime($In_date).Date
}

# Function to send email
function Send-WelcomeEmail {
    param (
        [Parameter(Mandatory = $true)]
        [string]$To,
        [Parameter(Mandatory = $true)]
        [string]$Subject,
        [Parameter(Mandatory = $true)]
        [string]$Body,
        [Parameter(Mandatory = $true)]
        [string[]]$AttachmentPaths
    )

    # Create a new MailMessage object
    $MailMessage = New-Object System.Net.Mail.MailMessage
    $MailMessage.From = $From
    $MailMessage.To.Add($To)
    $MailMessage.Subject = $Subject
    $MailMessage.Body = $Body
    $MailMessage.IsBodyHtml = $false

    # Add attachments to the MailMessage
    foreach ($AttachmentPath in $AttachmentPaths) {
        if (Test-Path $AttachmentPath) {
            $Attachment = New-Object System.Net.Mail.Attachment($AttachmentPath)
            $MailMessage.Attachments.Add($Attachment)
        }
        else {
            Write-Host "Attachment not found: $AttachmentPath"
        }
    }

    # Configure SMTP client
    $SMTPClient = New-Object System.Net.Mail.SmtpClient($SMTPServer, $SMTPPort)
    # $SMTPClient.EnableSsl = $true
    # $SMTPClient.Credentials = New-Object System.Net.NetworkCredential($Username, $Password)

    # Send the email
    try {
        $SMTPClient.Send($MailMessage)
        Write-Host "Email sent successfully to $To"
    }
    catch {
        Write-Host "Error sending email: $_"
    }
}

## Main Loop

foreach ($user in $usersToday) {
    # Send Day 1 Paperwork
    $user_name = $user.name

    # Email configuration
    $From = "onboarding@mpe.ca"
    $To = $user.mail
    $Subject = "Welcome to MPE a division of Englobe!"
    $Body = "Good day, $user_name,`n`nWelcome to MPE! Please find attached the necessary documents for your onboarding process. If you have any questions or concers, please reach out to your local Office Admin.`n`nBest Regards,`nYour Onboarding Team"
    $AttachmentPaths = @("C:\Users\eeckert\Downloads\Testing\Handbook Receipt and Acknowledgement Form 1.pdf")


    Send-WelcomeEmail -To $To -Subject $Subject -Body $Body -AttachmentPaths $AttachmentPaths
}
foreach ($user in $users30Day) {
    # Send Day 1 Paperwork
    $user_name = $user.name

    # Email configuration
    $From = "onboarding@mpe.ca"
    $To = $user.mail
    $Subject = "Welcome to MPE a division of Englobe!"
    $Body = "Good day, $user_name,`n`nWelcome to MPE! Please find attached the necessary documents for your onboarding process. If you have any questions or concers, please reach out to your local Office Admin.`n`nBest Regards,`nYour Onboarding Team"
    $AttachmentPaths = @("C:\Users\eeckert\Downloads\Testing\Handbook Receipt and Acknowledgement Form 1.pdf")


    Send-WelcomeEmail -To $To -Subject $Subject -Body $Body -AttachmentPaths $AttachmentPaths
}