# Copyright © 2015, Microsoft Corporation. All rights reserved.

. .\CL_RTF.ps1
. .\CL_RegSnapin.ps1

Import-LocalizedData -BindingVariable localizationString  -FileName CL_LocalizationData.psd1



Function Get-DefaultMicrophoneLevel()
{
    $type = "microphone/headset microphone"
    [string]$id = $null
    [string]$dll = "$env:windir\diagnostics\system\audio\AudioDiagnosticSnapIn.dll"
    [string]$namespace = "AudioDiagCommandSnapin"

    [int]$micLevel = -1

    $DefaultMicDevice = $null
    $DefaultMicDeviceInfo = $null

    try
    {
        RegSnapin $dll $namespace

        ##
        ## Get all audio capture devices
        ##
        [Array]$AudioDevices = $null
        Parse-List $type | ForEach-Object {
            if (-not([String]::IsNullOrEmpty($type)))
            {
                $AudioDevices += Get-AudioDevice -typename "$_"
            }
        }

        ##
        ## Get the default device
        ##
        foreach ($InputDevice in $AudioDevices)
        {
            $DeviceInfo = Get-AudioDevice -id $InputDevice.DeviceID
            try{
                if ($DeviceInfo.IsDefaultAudioDevice("") -eq $true)
                {
                    $DefaultMicSet = $true
                    $DefaultMicDevice = $InputDevice
                    $DefaultMicDeviceInfo = $DeviceInfo
                    break
                }
            }
            catch {}
        }

        ##
        ## Test the default mic for known problems
        ##
        if ($DefaultMicSet -eq $true)
        {
            $micLevel = $DefaultMicDeviceInfo.MasterVolume
        }
        else
        {
        }
    }
    finally {
        UnregSnapin $dll $namespace
    }

    return $micLevel
}

<#
Function Description:

    Splits and cleanses forward slash delimited string

Arguments:

    $list - forward slash delimited string

Return values:

    Array of strings

#>
function Parse-List([string]$list = $(throw "No list is specified"))
{
	if($list -eq $null)
	{
		return $null
	}

	return $list.Split("/", [StringSplitOptions]::RemoveEmptyEntries)
}

<#
Function Description:

    Determines if trouble page has ever been displayed 

Arguments:

    None

Return Values:

    TRUE if page has been displayed, FALSE if never displayed
#>
function Get-TroublePageDisplayed()
{

    [bool]$result = $false

    if ((test-path $MicWizRegKey) -eq $true)
    {
        $MicWizRegKeyProperties = Get-ItemProperty -Path $MicWizRegKey
        $result = $MicWizRegKeyProperties.$MicWizLastRunValue -ne $null
    }

    return $result
    
}

<#
Function Description:

    Sets registry value indicating when trouble page was last displayed

Arguments:

    None

Return Values:

    None
#>
function Set-TroublePageDisplayed()
{
    if ((test-path $MicWizRegKey) -eq $false)
    {
        new-item -Path $MicWizRegKey -Force
    }

    [DateTime]$lastRunDateTime = [System.DateTime]::UtcNow
    [string]$lastRunRegistryData = [string]::format("{0}.{1:D2}.{2:D2}-{3:D2}.{4:D2}.{5:D2}", 
                                                    $lastRunDateTime.Year, $lastRunDateTime.Month, $lastRunDateTime.Day, 
                                                    $lastRunDateTime.Hour, $lastRunDateTime.Minute, $lastRunDateTime.Second)
    
    Set-ItemProperty -Path $MicWizRegKey -Name $MicWizLastRunValue -Value $lastRunRegistryData -Force
}

<#
Function Description:

    Informs the customer that calibration might be required, asks for consent, and returns the result

Arguments:

    $CalibrationReason - "calibrate|default"

Return values:

    True/False - If true, the customer has agreed to calibration

#>
function Get-CalibrationConsent()
{
    $Header = Create-RTFHeader
    $Consent = $false
    $ConsentText = ""

    $ConsentText = $localizationString.ConsentRTFCalibrate

    $RTFSource = Add-RTFText $localizationString.ConsentRTFCalibrate
    $RTFDesc = Build-RTFData $Header $RTFSource

    $response = Get-DiagInput -id INT_MicSetup -Parameter @{"RTFDesc"="$RTFDesc"}
    if ($response -eq "calibrate") 
    { 
        $Consent = $true 
    }

    return $Consent
}