PSTeams

0.0.12

Public/PSTeam.ps1

enum MessageType {
    Alert
    Cancel
    Disable
    Download
    Minus
    Check
    Add
    None
}

function Optimize-JSONString {
    [CmdletBinding()]
    param(
        $str
    )
    if ($str -eq $null) {return ""}
    $str = $str.ToString().Replace('"', '\"').Replace('\', '\\').Replace("`n", '\n\n').Replace("`r", '').Replace("`t", '\t')
    return $str
}

function Get-Image {
    [CmdletBinding()]
    param(
        [string] $ImagePath
    )
    return [convert]::ToBase64String((Get-Content $ImagePath -Encoding byte))
}

function Send-TeamsMessage {
    [CmdletBinding()]
    Param (
        [Parameter(Mandatory = $true)][MessageType]$MessageType,
        [Parameter(Mandatory = $true)][string]$messageTitle,
        [Parameter(Mandatory = $true, ParameterSetName = 'SetBody')][string]$messageBody,
        [Parameter(Mandatory = $true, ParameterSetName = 'SetSummary')][string]$messageSummary,
        [string]$activityTitle,
        [string]$activitySubtitle,
        [array]$details = $null,
        [string]$detailTitle,
        [array]$buttons = $null,
        [Parameter(Mandatory = $true)][string]$URI,
        [bool] $Supress = $true
    )
    [bool] $UseImage = $false

    if ($MessageType -eq [MessageType]::None) {

    } else {
        $PathToImages = "$($($(Get-Module -ListAvailable PSTeams)[0]).ModuleBase)\Images"
        if (Test-Path $PathToImages) {
            Write-Verbose "Send-TeamChannelMessage - Image Path $PathToImages exists"
            $ImagePath = "$PathToImages\$($MessageType).jpg"
            if (Test-Path $ImagePath) {
                $Image = Get-Image $ImagePath
                Write-Verbose "Send-TeamChannelMessage - Image $ImagePath exists"
                $UseImage = $true
            } else {
                $UseImage = $false
            }
        }
    }

    If ($messageBody) {
        $TextOrSummary = 'text'
        $TextOrSummaryContents = $messageBody
    }
    If ($messageSummary) {
        $TextOrSummary = 'summary'
        $TextOrSummaryContents = $messageSummary
    }

    $potentialActions = @()

    foreach ($button in $buttons) {
        $potentialActions += @{
            '@context' = 'http://schema.org'
            '@type'    = 'ViewAction'
            name       = $($button.Name)
            target     = @("$($button.Value)")
        }
    }
    $TextOrSummaryContents = Optimize-JSONString $($TextOrSummaryContents)
    $body = ConvertTo-Json -Depth 6 @{
        title             = "$($messageTitle)"
        #themeColor = 'Green'
        $($TextOrSummary)    = [System.Text.RegularExpressions.Regex]::Unescape($($TextOrSummaryContents))
        sections          = @(
            @{
                activityTitle    = "$($activityTitle)"
                activitySubtitle = "$activitySubtitle"
                activityImage    = if ($UseImage) { "data:image/png;base64,$image" } else { '' }
            },
            @{
                title           = $detailTitle
                facts           = $details
                potentialAction = @(
                    $potentialActions
                )
            }
        )

    }
    $Execute = Invoke-RestMethod -uri $uri -Method Post -body $body -ContentType 'application/json'
    Write-Verbose "Send-TeamChannelMessage - Execute $Execute"
    Write-Verbose "Send-TeamChannelMessage - Body $body"
    if ($Supress) { } else { return $body }

}