PowerTrello

1.3

PowerTrello.psm1

#Requires -Version 4
Set-StrictMode -Version Latest

$baseUrl = 'https://api.trello.com/1'
$ProjectName = 'PowerTrello'
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12

function Request-TrelloAccessToken {
    [CmdletBinding()]
    [OutputType('System.String')]
    param
    (
        [Parameter(Mandatory)]
        [ValidateNotNullOrEmpty()]
        [string]$ApiKey,
        
        [Parameter()]
        [ValidateNotNullOrEmpty()]
        [string]$Scope = 'read,write',

        [Parameter()]
        [ValidateSet('never', '1hour', '1day', '30days')]
        [string]$ExpirationTime = 'never',
    
        [Parameter()]
        [ValidateNotNullOrEmpty()]
        [string]$ApplicationName = $ProjectName,
    
        [Parameter()]
        [ValidateNotNullOrEmpty()]
        [int]$AuthTimeout = 30
        
    )
    
    $ErrorActionPreference = 'Stop'
    try {
        $httpParams = @{
            'key'           = $apiKey
            'expiration'    = $ExpirationTime
            'scope'         = $Scope
            'response_type' = 'token'
            'name'          = $ApplicationName
            'return_url'    = 'https://trello.com'
        }
        
        $keyValues = @()
        $httpParams.GetEnumerator() | sort Name | foreach {
            $keyValues += "$($_.Key)=$($_.Value)"
        }
        
        $keyValueString = $keyValues -join '&'
        $authUri = "$baseUrl/authorize?$keyValueString"
        
        $IE = New-Object -ComObject InternetExplorer.Application
        $null = $IE.Navigate($authUri)
        $null = $IE.Visible = $true
        
        $timer = [System.Diagnostics.Stopwatch]::StartNew()
        while (($IE.LocationUrl -notmatch '^https://trello.com/token=') -and ($timer.Elapsed.TotalSeconds -lt $AuthTimeout)) {
            Start-Sleep -Seconds 1
        }
        $timer.Stop()
        
        if ($timer.Elapsed.TotalSeconds -ge $AuthTimeout) {
            throw 'Timeout waiting for user authorization.'
        }
        
        [regex]::Match($IE.LocationURL, 'token=(.+)').Groups[1].Value
        
    } catch {
        Write-Error $_.Exception.Message
    } finally {
        $null = $IE.Quit()    
    }
}

function NewUriAuthenticationString {
    [OutputType('string')]
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory)]
        [ValidateNotNullOrEmpty()]
        [string]$ApiKey,

        [Parameter(Mandatory)]
        [ValidateNotNullOrEmpty()]
        [string]$AccessToken
    )

    $ErrorActionPreference = 'Stop'

    "key=$ApiKey&token=$AccessToken"
    
}

function Get-TrelloConfiguration {
    [CmdletBinding()]
    param
    (
        [Parameter()]
        [ValidateNotNullOrEmpty()]
        [string]$RegistryKeyPath = "HKCU:\Software\$ProjectName"
    )
    
    $ErrorActionPreference = 'Stop'

    function decrypt([string]$TextToDecrypt) {
        $secure = ConvertTo-SecureString $TextToDecrypt
        $hook = New-Object system.Management.Automation.PSCredential("test", $secure)
        $plain = $hook.GetNetworkCredential().Password
        return $plain
    }

    try {
        if (-not (Test-Path -Path $RegistryKeyPath)) {
            Write-Verbose "No $ProjectName configuration found in registry"
        } else {
            $keyValues = Get-ItemProperty -Path $RegistryKeyPath
            $ak = decrypt $keyValues.APIKey
            $at = decrypt $keyValues.AccessToken
            $global:trelloConfig = [pscustomobject]@{
                'APIKey'      = $ak
                'AccessToken' = $at
                'String'      = (NewUriAuthenticationString -ApiKey $ak -AccessToken $at)
            }
            $trelloConfig
        }
    } catch {
        Write-Error $_.Exception.Message
    }
}

function Set-TrelloConfiguration {
    [CmdletBinding()]
    param (
        [Parameter(Mandatory)]
        [ValidateNotNullOrEmpty()]
        [string]$ApiKey,
    
        [Parameter(Mandatory)]
        [ValidateNotNullOrEmpty()]
        [string]$AccessToken,
    
        [Parameter()]
        [ValidateNotNullOrEmpty()]
        [string]$RegistryKeyPath = "HKCU:\Software\$ProjectName"
    )

    function encrypt([string]$TextToEncrypt) {
        $secure = ConvertTo-SecureString $TextToEncrypt -AsPlainText -Force
        $encrypted = $secure | ConvertFrom-SecureString
        return $encrypted
    }
        
    if (-not (Test-Path -Path $RegistryKeyPath)) {
        New-Item -Path ($RegistryKeyPath | Split-Path -Parent) -Name ($RegistryKeyPath | Split-Path -Leaf) | Out-Null
    }
    
    $values = 'APIKey', 'AccessToken'
    foreach ($val in $values) {
        if ((Get-Item $RegistryKeyPath).GetValue($val)) {
            Write-Verbose "'$RegistryKeyPath\$val' already exists. Skipping."
        } else {
            Write-Verbose "Creating $RegistryKeyPath\$val"
            New-ItemProperty $RegistryKeyPath -Name $val -Value $(encrypt $((Get-Variable $val).Value)) -Force | Out-Null
        }
    }
}

function Get-TrelloBoard {
    [CmdletBinding(DefaultParameterSetName = 'None')]
    param
    (
        [Parameter(ParameterSetName = 'ByName')]
        [ValidateNotNullOrEmpty()]
        [string]$Name,
        
        [Parameter(ParameterSetName = 'ById')]
        [ValidateNotNullOrEmpty()]
        [string]$Id,
    
        [Parameter()]
        [ValidateNotNullOrEmpty()]
        [switch]$IncludeClosedBoards,

        [Parameter()]
        [ValidateNotNullOrEmpty()]
        [pscredential]$ApiCredential
    )
    begin {
        $ErrorActionPreference = 'Stop'
    }
    process {
        try {

            if ($PSBoundParameters.ContainsKey('ApiCredential')) {
                $getParams = @{
                    'key'   = $ApiCredential.UserName
                    'token' = $ApiCredential.GetNetworkCredential().Password
                }
            } else {
                $getParams = @{
                    'key'   = $trelloConfig.APIKey
                    'token' = $trelloConfig.AccessToken
                }
            }

            if (-not $IncludeClosedBoards.IsPresent) {
                $getParams.filter = 'open'
            }
            
            $keyValues = @()
            $getParams.GetEnumerator() | foreach {
                $keyValues += "$($_.Key)=$($_.Value)"
            }
            
            $paramString = $keyValues -join '&'
            
            switch ($PSCmdlet.ParameterSetName) {
                'ByName' {
                    $uri = "$baseUrl/members/me/boards"
                    $boards = Invoke-RestMethod -Uri ('{0}?{1}' -f $uri, $paramString)
                    $boards | where { $_.name -eq $Name }
                }
                'ById' {
                    $uri = "$baseUrl/boards/$Id"
                    Invoke-RestMethod -Uri ('{0}?{1}' -f $uri, $paramString)
                }
                default {
                    $uri = "$baseUrl/members/me/boards"
                    Invoke-RestMethod -Uri ('{0}?{1}' -f $uri, $paramString)
                }
            }
        } catch {
            Write-Error $_.Exception.Message
        }
    }
}

function Get-TrelloList {
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory, ValueFromPipelineByPropertyName)]
        [ValidateNotNullOrEmpty()]
        [Alias('id')]
        [string]$BoardId,

        [Parameter()]
        [ValidateNotNullOrEmpty()]
        [pscredential]$ApiCredential
        
    )
    begin {
        $ErrorActionPreference = 'Stop'
    }
    process {
        try {
            if ($PSBoundParameters.ContainsKey('ApiCredential')) {
                $apiKey = $ApiCredential.UserName
                $accessToken = $ApiCredential.GetNetworkCredential().Password
            } else {
                $apiKey = $trelloConfig.APIKey
                $accessToken = $trelloConfig.AccessToken
            }
            $authString = NewUriAuthenticationString -ApiKey $apiKey -AccessToken $accessToken
            Invoke-RestMethod -Uri "$baseUrl/boards/$BoardId/lists?$authString"
        } catch {
            Write-Error $_.Exception.Message
        }
    }
}

function Get-TrelloCard {
    [CmdletBinding(DefaultParameterSetName = 'None')]
    param
    (
        [Parameter(Mandatory, ValueFromPipeline)]
        [ValidateNotNullOrEmpty()]
        [object]$Board,
        
        [Parameter(ParameterSetName = 'Name')]
        [ValidateNotNullOrEmpty()]
        [string]$Name,

        [Parameter(ParameterSetName = 'Id')]
        [ValidateNotNullOrEmpty()]
        [string]$Id,
        
        [Parameter(ParameterSetName = 'Label')]
        [ValidateNotNullOrEmpty()]
        [string]$Label,
    
        [Parameter(ParameterSetName = 'Due')]
        [ValidateNotNullOrEmpty()]
        [ValidateSet('Today', 'Tomorrow', 'In7Days', 'In14Days')]
        [string]$Due,

        [Parameter()]
        [ValidateNotNullOrEmpty()]
        [pscredential]$ApiCredential
        
        
    )
    begin {
        $ErrorActionPreference = 'Stop'
    }
    process {
        try {
            if ($PSBoundParameters.ContainsKey('ApiCredential')) {
                $apiKey = $ApiCredential.UserName
                $accessToken = $ApiCredential.GetNetworkCredential().Password
            } else {
                $apiKey = $trelloConfig.APIKey
                $accessToken = $trelloConfig.AccessToken
            }
            $authString = NewUriAuthenticationString -ApiKey $apiKey -AccessToken $accessToken

            $cards = Invoke-RestMethod -Uri "$baseUrl/boards/$($Board.Id)/cards?$authString"
            if ($PSBoundParameters.ContainsKey('Label')) {
                $cards | where { if (($_.labels) -and $_.labels.Name -contains $Label) { $true } }
            } elseif ($PSBoundParameters.ContainsKey('Due')) {
                $cards
            } elseif ($PSBoundParameters.ContainsKey('Name')) {
                $cards | where {$_.Name -eq $Name}
            } elseif ($PSBoundParameters.ContainsKey('Id')) {
                $cards | where {$_.idShort -eq $Id}
            } else {
                $cards
            }
        } catch {
            Write-Error $_.Exception.Message
        }
    }
}

function Get-TrelloLabel {
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory, ValueFromPipeline)]
        [ValidateNotNullOrEmpty()]
        [object]$Board,

        [Parameter()]
        [ValidateNotNullOrEmpty()]
        [pscredential]$ApiCredential
    )
    begin {
        $ErrorActionPreference = 'Stop'
    }
    process {
        try {
            if ($PSBoundParameters.ContainsKey('ApiCredential')) {
                $apiKey = $ApiCredential.UserName
                $accessToken = $ApiCredential.GetNetworkCredential().Password
            } else {
                $apiKey = $trelloConfig.APIKey
                $accessToken = $trelloConfig.AccessToken
            }
            $authString = NewUriAuthenticationString -ApiKey $apiKey -AccessToken $accessToken
            $uri = "$baseUrl/boards/{0}/labels?{1}" -f $Board.Id, $authString
            Invoke-RestMethod -Uri $uri
        } catch {
            Write-Error $_.Exception.Message
        }
    }
}

function Set-TrelloList {
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory, ValueFromPipelineByPropertyName)]
        [ValidateNotNullOrEmpty()]
        [Alias('Id')]
        [string]$CardId,
        
        [Parameter(Mandatory)]
        [ValidateNotNullOrEmpty()]
        [string]$ListId,

        [Parameter()]
        [ValidateNotNullOrEmpty()]
        [pscredential]$ApiCredential
    )
    begin {
        $ErrorActionPreference = 'Stop'
    }
    process {
        try {
            if ($PSBoundParameters.ContainsKey('ApiCredential')) {
                $apiKey = $ApiCredential.UserName
                $accessToken = $ApiCredential.GetNetworkCredential().Password
            } else {
                $apiKey = $trelloConfig.APIKey
                $accessToken = $trelloConfig.AccessToken
            }
            $authString = NewUriAuthenticationString -ApiKey $apiKey -AccessToken $accessToken
            $uri = "$baseUrl/cards/{0}?idList={1}&{2}" -f $CardId, $ListId, $authString
            Invoke-RestMethod -Uri $uri -Method Put
        } catch {
            Write-Error $_.Exception.Message
        }
    }
}

function Add-TrelloCardComment {
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory, ValueFromPipeline)]
        [ValidateNotNullOrEmpty()]
        [object]$Card,
        
        [Parameter(Mandatory)]
        [ValidateNotNullOrEmpty()]
        [string]$Comment,

        [Parameter()]
        [ValidateNotNullOrEmpty()]
        [pscredential]$ApiCredential
    )
    begin {
        $ErrorActionPreference = 'Stop'
    }
    process {
        try {
            if ($PSBoundParameters.ContainsKey('ApiCredential')) {
                $apiKey = $ApiCredential.UserName
                $accessToken = $ApiCredential.GetNetworkCredential().Password
            } else {
                $apiKey = $trelloConfig.APIKey
                $accessToken = $trelloConfig.AccessToken
            }
            $authString = NewUriAuthenticationString -ApiKey $apiKey -AccessToken $accessToken
            $uri = "$baseUrl/cards/{0}/actions/comments?{1}" -f $Card.Id, $authString
            Invoke-RestMethod -Uri $uri -Method Post -Body @{ text =$Comment }
        } catch {
            Write-Error $_.Exception.Message
        }
    }
}

function Add-TrelloCardMember {
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory, ValueFromPipeline)]
        [ValidateNotNullOrEmpty()]
        [object]$Card,
    
        [Parameter(Mandatory)]
        [ValidateNotNullOrEmpty()]
        [string]$MemberId,

        [Parameter()]
        [ValidateNotNullOrEmpty()]
        [pscredential]$ApiCredential
        
    )
    begin {
        $ErrorActionPreference = 'Stop'
    }
    process {
        try {
            if ($Card.MemberId) {
                throw 'Existing members found on card. This is not supported yet.'
            } else {
                if ($PSBoundParameters.ContainsKey('ApiCredential')) {
                    $apiKey = $ApiCredential.UserName
                    $accessToken = $ApiCredential.GetNetworkCredential().Password
                } else {
                    $apiKey = $trelloConfig.APIKey
                    $accessToken = $trelloConfig.AccessToken
                }
                $authString = NewUriAuthenticationString -ApiKey $apiKey -AccessToken $accessToken
                $uri = "$baseUrl/cards/{0}?MemberId={1}&{2}" -f $Card.Id, $MemberId, $authString
            }
            
            Invoke-RestMethod -Uri $uri -Method Put
        } catch {
            Write-Error $_.Exception.Message
        }
    }
}

function Get-TrelloMember {
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory, ValueFromPipelineByPropertyName)]
        [ValidateNotNullOrEmpty()]
        [Alias('Id')]
        [string]$BoardId,

        [Parameter()]
        [ValidateNotNullOrEmpty()]
        [pscredential]$ApiCredential
    )
    begin {
        $ErrorActionPreference = 'Stop'
    }
    process {
        try {
            if ($PSBoundParameters.ContainsKey('ApiCredential')) {
                $apiKey = $ApiCredential.UserName
                $accessToken = $ApiCredential.GetNetworkCredential().Password
            } else {
                $apiKey = $trelloConfig.APIKey
                $accessToken = $trelloConfig.AccessToken
            }
            $authString = NewUriAuthenticationString -ApiKey $apiKey -AccessToken $accessToken
            Invoke-RestMethod -Uri ("$baseUrl/boards/{0}/members?{1}" -f $BoardId, $authString)
        } catch {
            Write-Error $_.Exception.Message
        }
    }
}

function Get-TrelloCustomField {
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory, ValueFromPipelineByPropertyName)]
        [ValidateNotNullOrEmpty()]
        [Alias('Id')]
        [string]$BoardId,

        [Parameter()]
        [ValidateNotNullOrEmpty()]
        [pscredential]$ApiCredential
    )
    begin {
        $ErrorActionPreference = 'Stop'
    }
    process {
        try {
            if ($PSBoundParameters.ContainsKey('ApiCredential')) {
                $apiKey = $ApiCredential.UserName
                $accessToken = $ApiCredential.GetNetworkCredential().Password
            } else {
                $apiKey = $trelloConfig.APIKey
                $accessToken = $trelloConfig.AccessToken
            }
            $authString = NewUriAuthenticationString -ApiKey $apiKey -AccessToken $accessToken
            Invoke-RestMethod -Uri ("$baseUrl/boards/{0}/customFields?{1}" -f $BoardId, $authString)
        } catch {
            Write-Error $_.Exception.Message
        }
    }
}

function Remove-TrelloCardMember {
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory, ValueFromPipeline)]
        [ValidateNotNullOrEmpty()]
        [object]$Card,
        
        [Parameter(Mandatory)]
        [ValidateNotNullOrEmpty()]
        [string]$MemberId,

        [Parameter()]
        [ValidateNotNullOrEmpty()]
        [pscredential]$ApiCredential
        
    )
    begin {
        $ErrorActionPreference = 'Stop'
    }
    process {
        try {
            if ($PSBoundParameters.ContainsKey('ApiCredential')) {
                $apiKey = $ApiCredential.UserName
                $accessToken = $ApiCredential.GetNetworkCredential().Password
            } else {
                $apiKey = $trelloConfig.APIKey
                $accessToken = $trelloConfig.AccessToken
            }
            $authString = NewUriAuthenticationString -ApiKey $apiKey -AccessToken $accessToken
            $uri = "$baseUrl/cards/{0}/MemberId/{1}?{2}" -f $Card.Id, $MemberId, $authString
            Invoke-RestMethod -Uri $uri -Method Delete
        } catch {
            Write-Error $_.Exception.Message
        }
    }
}

function Get-Checklist {
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory, ValueFromPipeline)]
        [ValidateNotNullOrEmpty()]
        [object]$Card,
    
        [Parameter()]
        [ValidateNotNullOrEmpty()]
        [string]$Name,

        [Parameter()]
        [ValidateNotNullOrEmpty()]
        [pscredential]$ApiCredential
        
    )
    begin {
        $ErrorActionPreference = 'Stop'
    }
    process {
        try {
            if ($PSBoundParameters.ContainsKey('ApiCredential')) {
                $apiKey = $ApiCredential.UserName
                $accessToken = $ApiCredential.GetNetworkCredential().Password
            } else {
                $apiKey = $trelloConfig.APIKey
                $accessToken = $trelloConfig.AccessToken
            }
            $authString = NewUriAuthenticationString -ApiKey $apiKey -AccessToken $accessToken
            $checkLists = Invoke-RestMethod -Uri ("$baseUrl/cards/{0}/checklists?{1}" -f $Card.Id, $authString)
            if ($PSBoundParameters.ContainsKey('Name')) {
                $checkLists | Where-Object {$_.name -eq $Name}
            } else {
                $checkLists    
            }
        } catch {
            Write-Error $_.Exception.Message
        }
    }
}

function Get-ChecklistItem {
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory, ValueFromPipeline)]
        [ValidateNotNullOrEmpty()]
        [pscustomobject]$Checklist,
    
        [Parameter()]
        [ValidateNotNullOrEmpty()]
        [string]$Name,

        [Parameter()]
        [ValidateNotNullOrEmpty()]
        [pscredential]$ApiCredential
    )
    begin {
        $ErrorActionPreference = 'Stop'
        if ($PSBoundParameters.ContainsKey('ApiCredential')) {
            $apiKey = $ApiCredential.UserName
            $accessToken = $ApiCredential.GetNetworkCredential().Password
        } else {
            $apiKey = $trelloConfig.APIKey
            $accessToken = $trelloConfig.AccessToken
        }
        $authString = NewUriAuthenticationString -ApiKey $apiKey -AccessToken $accessToken
    }
    process {
        try {
            if ($PSBoundParameters.ContainsKey('Name')) {
                $checklist.checkItems | where {$_.Name -eq $Name}
            } else {
                $checklist.checkItems
            }
            
        } catch {
            Write-Error $_.Exception.Message
        }
    }
}

function Disable-ChecklistItem {
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory)]
        [ValidateNotNullOrEmpty()]
        [object]$Card,
        
        [Parameter(Mandatory)]
        [ValidateNotNullOrEmpty()]
        [object]$Checklist,
        
        [Parameter(Mandatory, ValueFromPipeline)]
        [ValidateNotNullOrEmpty()]
        [pscustomobject]$ChecklistItem,

        [Parameter()]
        [ValidateNotNullOrEmpty()]
        [pscredential]$ApiCredential
    )
    begin {
        $ErrorActionPreference = 'Stop'
    }
    process {
        try {
            if ($PSBoundParameters.ContainsKey('ApiCredential')) {
                $apiKey = $ApiCredential.UserName
                $accessToken = $ApiCredential.GetNetworkCredential().Password
            } else {
                $apiKey = $trelloConfig.APIKey
                $accessToken = $trelloConfig.AccessToken
            }
            $authString = NewUriAuthenticationString -ApiKey $apiKey -AccessToken $accessToken
            $params = @{
                'Uri'    = "$baseUrl/cards/{0}/checklist/{1}/checkItem/{2}?state=false&{3}" -f $Card.Id, $Checklist.Id, $ChecklistItem.Id, $authString
                'Method' = 'Put'
            }
            Invoke-RestMethod @params
        } catch {
            Write-Error $_.Exception.Message
        }
    }
}

function Enable-ChecklistItem {
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory)]
        [ValidateNotNullOrEmpty()]
        [object]$Card,
        
        [Parameter(Mandatory)]
        [ValidateNotNullOrEmpty()]
        [object]$Checklist,
        
        [Parameter(Mandatory, ValueFromPipeline)]
        [ValidateNotNullOrEmpty()]
        [pscustomobject]$ChecklistItem,

        [Parameter()]
        [ValidateNotNullOrEmpty()]
        [pscredential]$ApiCredential
    )
    begin {
        $ErrorActionPreference = 'Stop'
    }
    process {
        try {
            if ($PSBoundParameters.ContainsKey('ApiCredential')) {
                $apiKey = $ApiCredential.UserName
                $accessToken = $ApiCredential.GetNetworkCredential().Password
            } else {
                $apiKey = $trelloConfig.APIKey
                $accessToken = $trelloConfig.AccessToken
            }
            $authString = NewUriAuthenticationString -ApiKey $apiKey -AccessToken $accessToken
            $params = @{
                'Uri'    = "$baseUrl/cards/{0}/checklist/{1}/checkItem/{2}?state=true&{3}" -f $Card.Id, $Checklist.Id, $ChecklistItem.Id, $authString
                'Method' = 'Put'    
            }
            Invoke-RestMethod @params
        } catch {
            Write-Error $_.Exception.Message
        }
    }
}

function Add-TrelloCardAttachment {
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory, ValueFromPipeline)]
        [ValidateNotNullOrEmpty()]
        [object]$Card,
    
        [Parameter(Mandatory)]
        [ValidateNotNullOrEmpty()]
        [ValidateScript({ Test-Path -Path $_ -PathType Leaf })]
        [string]$FilePath,

        [Parameter()]
        [ValidateNotNullOrEmpty()]
        [pscredential]$ApiCredential
    )
    begin {
        $ErrorActionPreference = 'Stop'
    }
    process {
        try {
            $fileName = $FilePath | Split-Path -Leaf
            $contents = Get-Content -Path $FilePath -Raw

            if ($PSBoundParameters.ContainsKey('ApiCredential')) {
                $apiKey = $ApiCredential.UserName
                $accessToken = $ApiCredential.GetNetworkCredential().Password
            } else {
                $apiKey = $trelloConfig.APIKey
                $accessToken = $trelloConfig.AccessToken
            }
            $authString = NewUriAuthenticationString -ApiKey $apiKey -AccessToken $accessToken
            $params = @{
                'Uri'    = "$baseUrl/cards/{0}/attachments?file={1}&name={2}&{3}" -f $Card.Id, $contents, $fileName, $authString
                'Method' = 'Post'
            }
            $attachment = Invoke-RestMethod @params
            
        } catch {
            Write-Error $_.Exception.Message
        }
    }
}

function Get-TrelloCardAttachment {
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory, ValueFromPipeline)]
        [ValidateNotNullOrEmpty()]
        [object]$Card,
    
        [Parameter()]
        [ValidateNotNullOrEmpty()]
        [string]$Name,

        [Parameter()]
        [ValidateNotNullOrEmpty()]
        [pscredential]$ApiCredential
    )
    begin {
        $ErrorActionPreference = 'Stop'
    }
    process {
        try {

            if ($PSBoundParameters.ContainsKey('ApiCredential')) {
                $apiKey = $ApiCredential.UserName
                $accessToken = $ApiCredential.GetNetworkCredential().Password
            } else {
                $apiKey = $trelloConfig.APIKey
                $accessToken = $trelloConfig.AccessToken
            }
            $authString = NewUriAuthenticationString -ApiKey $apiKey -AccessToken $accessToken
            $params = @{
                'Uri' = "$baseUrl/cards/{0}/attachments?{1}" -f $Card.Id, $authString
            }
            $attachments = Invoke-RestMethod @params
            if ($PSBoundParameters.ContainsKey('Name')) {
                $attachments | Where-Object {$_.name -eq $Name}
            } else {
                $attachments    
            }
        } catch {
            Write-Error $_.Exception.Message
        }
    }
}

function Set-CustomField {
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory, ValueFromPipeline)]
        [ValidateNotNullOrEmpty()]
        [object]$Card,

        [Parameter(Mandatory)]
        [pscustomobject]$CustomFieldName,

        [Parameter(Mandatory)]
        [string]$CustomFieldValue
    )

    $ErrorActionPreference = 'Stop'

    $cusField = (Get-TrelloCustomField -BoardId $Card.idBoard) | where {$_.name -eq $CustomFieldName}

    $cusFieldId = ($cusField.options | where { $_.Value.text -eq $CustomFieldValue }).id

    if ($PSBoundParameters.ContainsKey('ApiCredential')) {
        $apiKey = $ApiCredential.UserName
        $accessToken = $ApiCredential.GetNetworkCredential().Password
    } else {
        $apiKey = $trelloConfig.APIKey
        $accessToken = $trelloConfig.AccessToken
    }
    $authString = NewUriAuthenticationString -ApiKey $apiKey -AccessToken $accessToken

    $RestParams = @{
        'uri'     = '{0}/card/{1}/customField/{2}/item?idValue={3}&{4}' -f $baseUrl, $Card.Id, $cusField.id, $cusFieldId, $authString
        'Method'  = 'PUT'
        'Body' = @{
            'value' = @{ $cusField.type = $CustomFieldValue }
        }
    }

    $null = Invoke-RestMethod @RestParams
    
}

function New-TrelloCard {
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory, ValueFromPipelineByPropertyName)]
        [ValidateNotNullOrEmpty()]
        [Alias('Id')]
        [string]$ListId,
        
        [Parameter()]
        [string]$Name,

        [Parameter()]
        [string]$Description,

        [Parameter()]
        [string]$Position = 'bottom',

        [Parameter()]
        [string[]]$MemberId,

        [Parameter()]
        [string[]]$LabelId,

        [Parameter()]
        [string]$CustomFieldName,

        [Parameter()]
        [string]$CustomFieldValue,

        [Parameter()]
        [string]$urlSource,

        [Parameter()]
        [string]$fileSource,

        [Parameter()]
        [string]$idCardSource,

        [Parameter()]
        [string]$keepFromSource
    )
    begin {
        $ErrorActionPreference = 'Stop'
        if ($PSBoundParameters.ContainsKey('ApiCredential')) {
            $apiKey = $ApiCredential.UserName
            $accessToken = $ApiCredential.GetNetworkCredential().Password
        } else {
            $apiKey = $trelloConfig.APIKey
            $accessToken = $trelloConfig.AccessToken
        }
        $authString = NewUriAuthenticationString -ApiKey $apiKey -AccessToken $accessToken
    }
    process {
        try {
            $NewCardHash = @{
                'idList' =$ListId
            }
            if(-not [string]::IsNullOrEmpty($Name)) {
                $NewCardHash['name'] = $Name
            }

            if(-not [string]::IsNullOrEmpty($Description)) {
                $NewCardHash['desc'] = $Description
            }

            if(-not [string]::IsNullOrEmpty($Position)) {
                $NewCardHash['pos'] = $Position
            }

            if(-not [string]::IsNullOrEmpty($MemberId)) {
                $NewCardHash['idMembers'] = $MemberId -join ','
            }

            if(-not [string]::IsNullOrEmpty($LabelId)) {
                $NewCardHash['idLabels'] = $LabelId -join ','
            }

            if(-not [string]::IsNullOrEmpty($urlSource)) {
                $NewCardHash['urlSource'] = $urlSource
            }

            if(-not [string]::IsNullOrEmpty($fileSource)) {
                $NewCardHash['fileSource'] = $fileSource
            }

            if(-not [string]::IsNullOrEmpty($idCardSource)) {
                $NewCardHash['idCardSource'] = $idCardSource
            }

            if(-not [string]::IsNullOrEmpty($keepFromSource)) {
                $NewCardHash['keepFromSource'] = $keepFromSource
            }

            $RestParams = @{
                'uri'    = "$baseUrl/cards?$authString"
                'Method' = 'Post'
                'Body'   = $NewCardHash
            }

            $card = Invoke-RestMethod @RestParams

            if ($PSBoundParameters.ContainsKey('CustomFieldName')) {
                Set-CustomField -Card $card -CustomFieldName $CustomFieldName -CustomFieldValue $CustomFieldValue
            }
        } catch {
            Write-Error $_.Exception.Message
        }
    }
}