ALZ

1.1.0-alpha

Private/Request-ALZEnvironmentConfig.ps1


function Request-ALZEnvironmentConfig {
    param(
        [Parameter(Mandatory = $true)]
        [object] $configurationParameters,
        [Parameter(Mandatory = $false)]
        [switch] $respectOrdering,
        [Parameter(Mandatory = $false)]
        [PSCustomObject] $userInputOverrides = $null,
        [Parameter(Mandatory = $false)]
        [PSCustomObject] $userInputDefaultOverrides = $null,
        [Parameter(Mandatory = $false)]
        [System.Boolean] $treatEmptyDefaultAsValid = $false,
        [Parameter(Mandatory = $false)]
        [switch] $autoApprove
    )
    <#
    .SYNOPSIS
    This function uses a template configuration to prompt for and return a user specified/modified configuration object.
    .EXAMPLE
    Request-ALZEnvironmentConfig
    .EXAMPLE
    Request-ALZEnvironmentConfig -alzIacProvider "bicep"
    .OUTPUTS
    System.Object. The resultant configuration values.
    #>

    $configurations = $configurationParameters.PsObject.Properties

    $hasDefaultOverrides = $false
    if($userInputDefaultOverrides -ne $null) {
        $hasDefaultOverrides = $true
        Write-InformationColored "We found you have cached values from a previous run." -ForegroundColor Yellow -InformationAction Continue
        $useDefaults = ""
        if($autoApprove) {
            $useDefaults = "use"
        } else {
            $useDefaults = Read-Host "Would you like to use these values or see each of them to validate and change them? Enter 'use' to use the cached value or just hit 'enter' to see and validate each value. (use/see)"
        }
        if($useDefaults.ToLower() -eq "use") {
            $userInputOverrides = $userInputDefaultOverrides
        }
    }

    $hasInputOverrides = $false
    if($userInputOverrides -ne $null) {
        $hasInputOverrides = $true
    }

    if($respectOrdering) {
        $configurations = $configurationParameters.PSObject.Properties | Sort-Object { $_.Value.Order }
    }

    foreach ($configurationValue in $configurations) {
        if ($configurationValue.Value.Type -eq "UserInput") {

            # Check for and add cached as default
            if($hasDefaultOverrides) {
                $defaultOverride = $userInputDefaultOverrides.PsObject.Properties | Where-Object { $_.Name -eq $configurationValue.Name }
                if($null -ne $defaultOverride) {
                    if(!($configurationValue.Value.PSObject.Properties.Name -match "DefaultValue")) {
                        $configurationValue.Value | Add-Member -NotePropertyName "DefaultValue" -NotePropertyValue $defaultOverride.Value
                    } else {
                        $configurationValue.Value.DefaultValue = $defaultOverride.Value
                    }
                }
            }

            # Check for and use override
            if($hasInputOverrides) {
                $userInputOverride = $userInputOverrides.PsObject.Properties | Where-Object { $_.Name -eq $configurationValue.Name }
                if($null -ne $userInputOverride) {
                    $configurationValue.Value.Value = $userInputOverride.Value
                } else {
                    Request-ConfigurationValue -configName $configurationValue.Name -configValue $configurationValue.Value -treatEmptyDefaultAsValid $treatEmptyDefaultAsValid
                }
            } else {
                Request-ConfigurationValue -configName $configurationValue.Name -configValue $configurationValue.Value -treatEmptyDefaultAsValid $treatEmptyDefaultAsValid
            }
        }
    }

    return $configurationParameters
}