AutoRest

0.1.0

internal/classes/02-Command.ps1

class Command {
    [string]$Name
    [string]$Synopsis
    [string]$Description
    [string]$DocumentationUrl = '<unknown>'

    [string]$Method
    [string]$EndpointUrl
    [string]$ServiceName
    [string[]]$Scopes = @()

    [Hashtable]$Parameters = @{ }
    [Hashtable]$ParameterSets = @{ }

    [string]$RestCommand
    [string]$ProcessorCommand

    [string]ToExample() {
        $format = @'
.EXAMPLE
    PS C:\> {0}
 
    {1}
'@
        $sets = @{ }
        foreach ($parameter in $this.Parameters.Values) {
            foreach ($set in $parameter.ParameterSet) {
                if ($sets[$set]) { continue }
                $sets[$set] = @()
            }
            if (-not $parameter.Mandatory) { continue }

            foreach ($set in $parameter.ParameterSet) {
                $sets[$set] += $parameter
            }
        }

        $texts = foreach ($set in $sets.Keys) {
            $descriptionText = '<insert description here>'
            if ($this.ParameterSets[$set]) { $descriptionText = $this.ParameterSets[$set] }

            $commandText = (@($this.Name) + @(($sets[$set] | ForEach-Object ToExample))) -join " "

            $format -f $commandText, $descriptionText
        }

        return $texts -join "`n`n"
    }

    [string]ToHelp() {
        $format = @'
<#
.SYNOPSIS
    {0}
 
.DESCRIPTION
    {1}
 
{2}
 
{3}
 
.LINK
    {4}
#>
'@
        $parameterHelp = $this.Parameters.Values | Sort-Object Weight | ForEach-Object ToHelp | Join-String -Separator "`n`n"
        $descriptionText = $this.Description
        if ($this.Scopes) { $descriptionText = $descriptionText, (' Scopes required (delegate auth): {0}' -f ($this.Scopes -join ", ")) -join "`n`n" }
        return $format -f $this.Synopsis, $descriptionText, $parameterHelp, $this.ToExample(), $this.DocumentationUrl
    }

    [string]ToParam() {
        return @"
    [CmdletBinding(DefaultParameterSetName = 'default')]
    param (
$($this.Parameters.Values | Sort-Object Weight | ForEach-Object ToParam | Join-String ",`n`n")
    )
"@
    }

    [string]ToProcess() {
        $format = @'
        $__mapping = @{{
{9}
        }}
        $__body = $PSBoundParameters | ConvertTo-HashTable -Include {0} -Mapping $__mapping
        $__query = $PSBoundParameters | ConvertTo-HashTable -Include {1} -Mapping $__mapping
        $__path = '{2}'{3}
        {4} -Path $__path -Method {5} -Body $__body -Query $__query{6}{7}{8}
'@
        $bodyString = '@({0})' -f (($this.Parameters.Values | Where-Object Type -EQ Body).Name | Add-String "'" "'" | Join-String ",")
        $queryString = '@({0})' -f (($this.Parameters.Values | Where-Object Type -EQ Query).Name | Add-String "'" "'" | Join-String ",")
        [string]$pathReplacement = $this.Parameters.Values | Where-Object {
            $_.Type -eq 'Path' -and
            $this.EndpointUrl -like "*{$($_.SystemName)}*"
        } | Format-String -Format " -Replace '{{{0}}}',`${1}" -Property SystemName, Name | Join-String ""
        if ($optionalParameter = $this.Parameters.Values | Where-Object { $_.Type -eq 'Path' -and $this.EndpointUrl -notlike "*{$($_.SystemName)}*" }) {
            $pathReplacement = $pathReplacement + @'
 
        if (${0}) {{ $__path += "/${0}" }}
'@ -f $optionalParameter.Name
        }
        $scopesString = ''
        if ($this.Scopes) { $scopesString = ' -RequiredScopes {0}' -f ($this.Scopes | Add-String "'" "'" | Join-String ',') }
        $processorString = ''
        if ($this.ProcessorCommand) { $processorString = " | $($this.ProcessorCommand)" }
        $serviceString = ''
        if ($this.ServiceName) { $serviceString = " -Service $($this.ServiceName)" }
        $mappingString = $this.Parameters.Values | Where-Object Type -NE Path | Format-String -Format " '{0}' = '{1}'" -Property Name, SystemName | Join-String "`n"

        return $format -f $bodyString, $queryString, $this.EndpointUrl, $pathReplacement, $this.RestCommand, $this.Method, $scopesString, $serviceString, $processorString, $mappingString
    }

    [string]ToCommand() {
        return @"
function $($this.Name) {
$($this.ToHelp())
$($this.ToParam())
    process {
$($this.ToProcess())
    }
}
"@
    }
}