# Samy.Offboard.ps1
# Offboarding handlers and full offboard flow

function Invoke-UninstallCyberQP {
    param($Context)

    try {
        if (Get-Command Uninstall-CyberQP -ErrorAction Stop) {
            Uninstall-CyberQP
            Write-LogHybrid "CyberQP uninstalled" Success OffBoard -LogToEvent
            Send-Text $Context "CyberQP uninstalled."
        }
        else {
            throw "Uninstall-CyberQP cmdlet not found in SVSMSP toolkit."
        }
    }
    catch {
        Write-LogHybrid "Error uninstalling CyberQP: $($_.Exception.Message)" Error OffBoard -LogToEvent
        Send-Text $Context "ERROR: $($_.Exception.Message)"
    }
}

function Invoke-UninstallHelpDesk {
    param($Context)

    try {
        if (Get-Command Uninstall-HelpDesk -ErrorAction Stop) {
            Uninstall-HelpDesk
            Write-LogHybrid "SVS HelpDesk uninstalled" Success OffBoard -LogToEvent
            Send-Text $Context "SVS HelpDesk uninstalled."
        }
        else {
            throw "Uninstall-HelpDesk cmdlet not found in SVSMSP toolkit."
        }
    }
    catch {
        Write-LogHybrid "Error uninstalling SVS HelpDesk: $($_.Exception.Message)" Error OffBoard -LogToEvent
        Send-Text $Context "ERROR: $($_.Exception.Message)"
    }
}

function Invoke-UninstallThreatLocker {
    param($Context)

    try {
        if (Get-Command Uninstall-ThreatLocker -ErrorAction Stop) {
            Uninstall-ThreatLocker
            Write-LogHybrid "ThreatLocker uninstalled" Success OffBoard -LogToEvent
            Send-Text $Context "ThreatLocker uninstalled."
        }
        else {
            throw "Uninstall-ThreatLocker cmdlet not found in SVSMSP toolkit."
        }
    }
    catch {
        Write-LogHybrid "Error uninstalling ThreatLocker: $($_.Exception.Message)" Error OffBoard -LogToEvent
        Send-Text $Context "ERROR: $($_.Exception.Message)"
    }
}

function Invoke-UninstallRocketCyber {
    param($Context)

    try {
        if (Get-Command Uninstall-RocketCyber -ErrorAction Stop) {
            Uninstall-RocketCyber
            Write-LogHybrid "RocketCyber uninstalled" Success OffBoard -LogToEvent
            Send-Text $Context "RocketCyber uninstalled."
        }
        else {
            throw "Uninstall-RocketCyber cmdlet not found in SVSMSP toolkit."
        }
    }
    catch {
        Write-LogHybrid "Error uninstalling RocketCyber: $($_.Exception.Message)" Error OffBoard -LogToEvent
        Send-Text $Context "ERROR: $($_.Exception.Message)"
    }
}

function Invoke-CleanupSVSMSP {
    param($Context)

    try {
        if (Get-Command Install-SVSMSP -ErrorAction Stop) {
            Install-SVSMSP -Cleanup
            Write-LogHybrid "SVSMSP toolkit cleanup completed (module, repo, registry)." Success OffBoard -LogToEvent
            Send-Text $Context "SVSMSP toolkit cleanup completed."
        }
        else {
            throw "Install-SVSMSP function not found in current session."
        }
    }
    catch {
        Write-LogHybrid "Error cleaning up SVSMSP toolkit: $($_.Exception.Message)" Error OffBoard -LogToEvent
        Send-Text $Context "ERROR: $($_.Exception.Message)"
    }
}

function Invoke-SamyFullOffboard {
    [CmdletBinding(SupportsShouldProcess = $true)]
    param()

    $offboardTasks = $Global:SamyTasks | Where-Object Page -eq 'offboard'

    if (-not $offboardTasks) {
        Write-LogHybrid "No offboard tasks configured." Warning OffBoard -LogToEvent
        return
    }

    if (-not $PSCmdlet.ShouldProcess("Full off-boarding flow", "Execute every offboard task")) {
        return
    }

    foreach ($task in $offboardTasks) {
        try {
            Write-LogHybrid "Running offboard task: $($task.Label)" Info OffBoard -LogToEvent

            if (-not (Get-Command $task.HandlerFn -ErrorAction SilentlyContinue)) {
                Write-LogHybrid "Missing handler $($task.HandlerFn)" Error OffBoard -LogToEvent
                continue
            }

            & $task.HandlerFn $null
        }
        catch {
            Write-LogHybrid "Offboard task $($task.Label) failed: $($_.Exception.Message)" Error OffBoard -LogToEvent
        }
    }

    Write-LogHybrid "Headless offboarding completed" Success OffBoard -LogToEvent
}