can-i-deploy

param(
  [string]$pactBroker = "<https://ess.pactflow.io>",
  [Parameter(Mandatory = $true)]
  [string]$pacticipant,
  [Parameter(Mandatory = $true)]
  [string]$toEnv,
  [Parameter(Mandatory = $true)]
  [string]$pactBrokerToken,
  [string]$dataDogEventsUrl = "<https://api.datadoghq.com/api/v1/events>",
  [Parameter(Mandatory = $true)]
  [string]$dataDogToken
)

[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12

$PSVersionTable

$firstLine = Get-Content "..\..\ReleaseNotes.md" -First 1
$branchName = $firstLine -Replace "Branch: ", ""

$canIDeployUrl = "$pactBroker/pacticipants/:pacticipant/latest-version/:tag/can-i-deploy/to/:toEnv"

$pactFlowHeaders = @{ "Content-Type" = "application/json"; "Accept" = "application/hal+json"; 'Authorization' = 'Bearer ' + $pactBrokerToken; }

$encodedPacticipant = [Uri]::EscapeDataString($pacticipant)
$encodedTag = [Uri]::EscapeDataString($branchName)
$encodedToEnv = [Uri]::EscapeDataString($toEnv)
$formattedCanIDeployUrl = (($canIDeployUrl -Replace ":pacticipant", $encodedPacticipant) -Replace ":tag", $encodedTag) -Replace ":toEnv", $encodedToEnv

Write-Host "`nChecking if '$pacticipant' with tag '$branchName' can be deployed to '$toEnv':"
Write-Host "`t$formattedCanIDeployUrl`n"

$pactFlowResponse = Invoke-RestMethod $formattedCanIDeployUrl -Method "GET" -Headers $pactFlowHeaders

Write-Host (ConvertTo-Json $pactFlowResponse -Depth 10)

if (($null -eq $pactFlowResponse.summary.deployable) -or ($true -eq $pactFlowResponse.summary.deployable)) {
  exit 0
}

else {
  $dataDogEvent = @{}

  $dataDogEvent.alert_type = "error"
  $dataDogEvent.title = "$pacticipant Failed to Deploy to $toEnv"
  $dataDogEvent.text = $pactFlowResponse.summary.reason
  $dataDogEvent.tags = [System.Collections.ArrayList]@()
  $dataDogEvent.tags.Add("documents_service")
  $dataDogEvent.tags.Add("environment:$toEnv")

  $dataDogHeaders = @{ "Content-Type" = "application/json"; "Accept" = "application/json"; 'DD-API-KEY' = $dataDogToken; }

  Invoke-RestMethod $dataDogEventsUrl -Method "POST" -Headers $dataDogHeaders -Body (ConvertTo-Json $dataDogEvent)

  exit 1
}