# PromptHelper.ps1 — shared foreground/system-modal confirmation dialog helper.

function Show-ConfirmationDialog {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory)][string]$Title,
        [Parameter(Mandatory)][string]$Message,
        [string]$Feature = 'PromptHelper',
        [string]$Default = 'No'
    )

    try {
        $shell = New-Object -ComObject WScript.Shell
        # 4=YesNo, 32=Question icon, 4096=System modal, 65536=Foreground
        $result = $shell.Popup($Message, 0, $Title, 4 + 32 + 4096 + 65536)

        switch ($result) {
            6 { return 'Yes' }
            7 { return 'No' }
            default { return $Default }
        }
    }
    catch {
        Write-Log -Level Error -Message "Failed to show confirmation dialog '$Title': $_" -Feature $Feature
        return $Default
    }
}

function Show-MultiChoiceDialog {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory)][string]$Title,
        [Parameter(Mandatory)][string]$Message,
        [Parameter(Mandatory)][object[]]$Choices,
        [string]$Feature = 'PromptHelper',
        [string]$DefaultValue = ''
    )

    try {
        Add-Type -AssemblyName System.Windows.Forms -ErrorAction SilentlyContinue | Out-Null
        Add-Type -AssemblyName System.Drawing -ErrorAction SilentlyContinue | Out-Null

        if ($Choices.Count -lt 1 -or $Choices.Count -gt 4) {
            throw 'Show-MultiChoiceDialog expects 1 to 4 choices.'
        }

        $form = New-Object System.Windows.Forms.Form
        $form.Text = $Title
        $form.StartPosition = [System.Windows.Forms.FormStartPosition]::CenterScreen
        $form.TopMost = $true
        $form.Width = 480
        $form.Height = 190
        $form.MinimizeBox = $false
        $form.MaximizeBox = $false
        $form.FormBorderStyle = [System.Windows.Forms.FormBorderStyle]::FixedDialog

        $label = New-Object System.Windows.Forms.Label
        $label.AutoSize = $false
        $label.Left = 12
        $label.Top = 12
        $label.Width = 440
        $label.Height = 80
        $label.Text = $Message
        $form.Controls.Add($label)

        $form.Tag = $DefaultValue
        $gap = 10
        $availableWidth = $form.ClientSize.Width - 24 - ($gap * ($Choices.Count - 1))
        $buttonWidth = [Math]::Min(130, [Math]::Floor($availableWidth / $Choices.Count))
        $totalWidth = ($buttonWidth * $Choices.Count) + ($gap * ($Choices.Count - 1))
        $startX = [Math]::Max(12, [int](($form.ClientSize.Width - $totalWidth) / 2))

        for ($i = 0; $i -lt $Choices.Count; $i++) {
            $choice = $Choices[$i]
            $button = New-Object System.Windows.Forms.Button
            $button.Left = $startX + ($i * ($buttonWidth + $gap))
            $button.Top = 105
            $button.Width = $buttonWidth
            $button.Height = 30
            $button.Text = [string]$choice.Label
            $button.Tag = [string]$choice.Value
            $button.Add_Click({
                param($sender, $eventArgs)
                $dlg = $sender.FindForm()
                $dlg.Tag = [string]$sender.Tag
                $dlg.DialogResult = [System.Windows.Forms.DialogResult]::OK
                $dlg.Close()
            })
            $form.Controls.Add($button)
            if ($i -eq 0) {
                $form.AcceptButton = $button
            }
        }

        [void]$form.ShowDialog()
        $result = [string]$form.Tag
        $form.Dispose()

        return $result
    }
    catch {
        Write-Log -Level Error -Message "Failed to show multi-choice dialog '$Title': $_" -Feature $Feature
        return $DefaultValue
    }
}