Public/Administration/Rules/Get-GlpiToolsRules.ps1

<#
.SYNOPSIS
    Function is getting Rules informations from GLPI
.DESCRIPTION
    Function is based on RuleId which you can find in GLPI website
    Returns object with property's of Rules
.PARAMETER All
    This parameter will return all Rules from GLPI
.PARAMETER RuleId
    This parameter can take pipeline input, either, you can use this function with -RuleId keyword.
    Provide to this param RuleId from GLPI Rules Bookmark
.PARAMETER Raw
    Parameter which you can use with RuleId Parameter.
    RuleId has converted parameters from default, parameter Raw allows not convert this parameters.
.PARAMETER RuleName
    This parameter can take pipeline input, either, you can use this function with -RuleId keyword.
    Provide to this param Rules Name from GLPI Rules Bookmark
.EXAMPLE
    PS C:\> Get-GlpiToolsRules -All
    Example will return all Rules from Glpi
.EXAMPLE
    PS C:\> 326 | Get-GlpiToolsRules
    Function gets RuleId from GLPI from pipeline, and return Rules object
.EXAMPLE
    PS C:\> 326, 321 | Get-GlpiToolsRules
    Function gets RuleId from GLPI from pipeline (u can pass many ID's like that), and return Rules object
.EXAMPLE
    PS C:\> Get-GlpiToolsRules -RuleId 326
    Function gets RuleId from GLPI which is provided through -RuleId after Function type, and return Rules object
.EXAMPLE
    PS C:\> Get-GlpiToolsRules -RuleId 326, 321
    Function gets Rules Id from GLPI which is provided through -RuleId keyword after Function type (u can provide many ID's like that), and return Rules object
.EXAMPLE
    PS C:\> Get-GlpiToolsRules -RuleName Fusion
    Example will return glpi Rules, but what is the most important, Rules will be shown exactly as you see in glpi dropdown Rules.
    If you want to add parameter, you have to modify "default items to show". This is the "key/tool" icon near search.
.INPUTS
    Rules ID which you can find in GLPI, or use this Function to convert ID returned from other Functions
.OUTPUTS
    Function returns PSCustomObject with property's of Rules from GLPI
.NOTES
    PSP 09/2019
#>


function Get-GlpiToolsRules {
    [CmdletBinding()]
    param (
        [parameter(Mandatory = $false,
            ParameterSetName = "All")]
        [switch]$All,
        [parameter(Mandatory = $true,
            ValueFromPipeline = $true,
            ParameterSetName = "RuleId")]
        [alias('RID')]
        [string[]]$RuleId,
        [parameter(Mandatory = $false,
            ParameterSetName = "RuleId")]
        [switch]$Raw,
        
        [parameter(Mandatory = $true,
            ParameterSetName = "RuleName")]
        [alias('RN')]
        [string]$RuleName
    )
    
    begin {
        $SessionToken = $Script:SessionToken    
        $AppToken = $Script:AppToken
        $PathToGlpi = $Script:PathToGlpi

        $SessionToken = Set-GlpiToolsInitSession | Select-Object -ExpandProperty SessionToken
        $AppToken = Get-GlpiToolsConfig | Select-Object -ExpandProperty AppToken
        $PathToGlpi = Get-GlpiToolsConfig | Select-Object -ExpandProperty PathToGlpi

        $ChoosenParam = ($PSCmdlet.MyInvocation.BoundParameters).Keys

        $RulesArray = [System.Collections.Generic.List[PSObject]]::New()
    }
    
    process {
        switch ($ChoosenParam) {
            All { 
                $params = @{
                    headers = @{
                        'Content-Type'  = 'application/json'
                        'App-Token'     = $AppToken
                        'Session-Token' = $SessionToken
                    }
                    method  = 'get'
                    uri     = "$($PathToGlpi)/rule/?range=0-9999999999999"
                }
                
                $RulesAll = Invoke-RestMethod @params -Verbose:$false

                foreach ($RuleName in $RulesAll) {
                    $RuleNameHash = [ordered]@{ }
                    $RuleNameProperties = $RuleName.PSObject.Properties | Select-Object -Property Name, Value 
                                
                    foreach ($RuleNameProp in $RuleNameProperties) {
                        $RuleNameHash.Add($RuleNameProp.Name, $RuleNameProp.Value)
                    }
                    $object = [pscustomobject]$RuleNameHash
                    $RulesArray.Add($object)
                }
                $RulesArray
                $RulesArray = [System.Collections.Generic.List[PSObject]]::New()
            }
            RuleId { 
                foreach ( $RId in $RuleId ) {
                    $params = @{
                        headers = @{
                            'Content-Type'  = 'application/json'
                            'App-Token'     = $AppToken
                            'Session-Token' = $SessionToken
                        }
                        method  = 'get'
                        uri     = "$($PathToGlpi)/rule/$($RId)"
                    }

                    Try {
                        $RuleName = Invoke-RestMethod @params -ErrorAction Stop

                        if ($Raw) {
                            $RuleNameHash = [ordered]@{ }
                            $RuleNameProperties = $RuleName.PSObject.Properties | Select-Object -Property Name, Value 
                                
                            foreach ($RuleNameProp in $RuleNameProperties) {
                                $RuleNameHash.Add($RuleNameProp.Name, $RuleNameProp.Value)
                            }
                            $object = [pscustomobject]$RuleNameHash
                            $RulesArray.Add($object)
                        } else {
                            $RuleNameHash = [ordered]@{ }
                            $RuleNameProperties = $RuleName.PSObject.Properties | Select-Object -Property Name, Value 
                                
                            foreach ($RuleNameProp in $RuleNameProperties) {

                                $RuleNamePropNewValue = Get-GlpiToolsParameters -Parameter $RuleNameProp.Name -Value $RuleNameProp.Value

                                $RuleNameHash.Add($RuleNameProp.Name, $RuleNamePropNewValue)
                            }
                            $object = [pscustomobject]$RuleNameHash
                            $RulesArray.Add($object)
                        }
                    } Catch {

                        Write-Verbose -Message "Rule ID = $RId is not found"
                        
                    }
                    $RulesArray
                    $RulesArray = [System.Collections.Generic.List[PSObject]]::New()
                }
            }
            RuleName { 
                Search-GlpiToolsItems -SearchFor rule -SearchType contains -SearchValue $RuleName
            } 
            Default { }
        }
    }
    
    end {
        Set-GlpiToolsKillSession -SessionToken $SessionToken
    }
}