################################################################################
##  File:  Validate-AzureModules.ps1
##  Desc:  Validate Azure PowerShell modules
################################################################################

Import-Module -Name ImageHelpers -Force

# Adding description of the software to Markdown
function Add-ModuleDescription
{
    param($DefaultModule, [String]$ModuleName)

    # Adding description of the software to Markdown
    $SoftwareName = "$ModuleName PowerShell module"

    if ($DefaultModule)
    {
        $Description = @"
#### $($DefaultModule.Version)

This version is installed and is available via ``Get-Module -ListAvailable``
"@
    }
    else
    {
        $Description = ""
    }

    Add-SoftwareDetailsToMarkdown -SoftwareName $SoftwareName -DescriptionMarkdown $Description
    if($ModuleName -eq 'Az')
    {
        $prop = @{n="Version";e={[Version]$_.Directory.Name}},@{n="Path";e={$_.FullName}}
        $azureModules = Get-ChildItem C:\Modules\az_*\Az\*\Az.psd1 | Select-Object $prop
    }
    else
    {
        $azureModules = Get-Module -Name $ModuleName -ListAvailable | Sort-Object Version -Unique
    }

    foreach($module in $azureModules)
    {
        if($module.Version -ne $DefaultModule.Version)
        {

            $CurrentModule = @"
#### $($module.Version)

This version is saved but not installed
_Location:_ $($module.Path)
"@
            Add-ContentToMarkdown -Content $CurrentModule
        }
    }
}

function Validate-AzureModule
{
    param([String]$ModuleName, [String[]]$ModuleVersions)

    if ($ModuleName -eq 'Az')
    {
        $prop = @{n="Name";e={"Az"}},@{n="Version";e={[Version]$_.Directory.Name}},@{n="Path";e={$_.FullName}}
        $azureModules = Get-ChildItem C:\Modules\az_*\Az\*\Az.psd1 | Select-object $prop
    }
    else
    {
        $azureModules = Get-Module -Name $ModuleName -ListAvailable
    }

    $installedVersions = $azureModules | Foreach-Object {$_.Version.ToString()}

    Write-Host "The $ModuleName module finally present are:"
    $azureModules | Select-Object Name,Version,Path | Format-Table | Out-String

    foreach($version in $ModuleVersions)
    {
        if ($installedVersions -notcontains $version)
        {
            Write-Host "Required '$ModuleName' module '$version' version is not present"
            exit 1
        }
    }
}

# Get default modules version
$defaultAzureRMModule = Get-Module -Name AzureRM -ListAvailable
$defaultAzureModule = Get-Module -Name Azure -ListAvailable

# Add modules to the PSModulePath
$env:PSModulePath = $env:PSModulePath + ";C:\Modules"

# Validate Azure modules and versions
$azurermVersions = "2.1.0", "3.8.0", "4.2.1", "5.1.1", "6.7.0", "6.13.1"
Validate-AzureModule -ModuleName AzureRM -ModuleVersions $azurermVersions

$azureVersions = "2.1.0", "3.8.0", "4.2.1", "5.1.1", "5.3.0"
Validate-AzureModule -ModuleName Azure -ModuleVersions $azureVersions

$azVersions = "1.0.0", "1.6.0", "2.3.2", "2.6.0", "3.1.0", "3.5.0"
Validate-AzureModule -ModuleName Az -ModuleVersions $azVersions

# Adding description of the software to Markdown
Add-ModuleDescription -DefaultModule $defaultAzureRMModule -ModuleName AzureRM
Add-ModuleDescription -DefaultModule $defaultAzureModule -ModuleName Azure
Add-ModuleDescription -ModuleName Az