# Function to install phalcon
Function Add-PhalconHelper() {
  if ($extension_version -eq '4') {
    Install-Phpextension phalcon -MinimumStability stable -Path $php_dir
  } else {
    $domain = 'https://github.com'
    $nts = if (!$installed.ThreadSafe) { "_nts" } else { "" }
    $match = Invoke-WebRequest -UseBasicParsing -Uri $domain/phalcon/cphalcon/releases | Select-String -Pattern "href=`"(.*phalcon_x64_.*_php${version}_${extension_version}.*[0-9]${nts}.zip)`""
    $zip_file = $match.Matches[0].Groups[1].Value
    Invoke-WebRequest -UseBasicParsing -Uri $domain/$zip_file -OutFile $ENV:RUNNER_TOOL_CACHE\phalcon.zip > $null 2>&1
    Expand-Archive -Path $ENV:RUNNER_TOOL_CACHE\phalcon.zip -DestinationPath $ENV:RUNNER_TOOL_CACHE\phalcon -Force > $null 2>&1
    Copy-Item -Path "$ENV:RUNNER_TOOL_CACHE\phalcon\php_phalcon.dll" -Destination "$ext_dir\php_phalcon.dll"
    Enable-PhpExtension -Extension phalcon -Path $php_dir
  }
}

Function Add-Phalcon() {
  Param (
    [Parameter(Position = 0, Mandatory = $true)]
    [ValidateNotNull()]
    [ValidateSet('phalcon3', 'phalcon4')]
    [string]
    $extension
  )
  try {
    $status = 'Enabled'
    $extension_version = $extension.substring($extension.Length - 1)

    if($extension_version -eq '4') {
      if (Test-Path $ext_dir\php_psr.dll) {
        Enable-PhpExtension -Extension psr -Path $php_dir
      } else {
        Install-Phpextension psr -MinimumStability stable -Path $php_dir
      }
    }

    if(Test-Path $ext_dir\php_phalcon.dll) {
      $phalcon = Get-PhpExtension $ext_dir\php_phalcon.dll
      if($phalcon.Version[0] -eq $extension_version) {
        Enable-PhpExtension -Extension phalcon -Path $php_dir
      } else {
        $status = 'Installed and enabled'
        Remove-Item $ext_dir\php_phalcon.dll
        Add-PhalconHelper
      }
    } else {
      $status = 'Installed and enabled'
      Add-PhalconHelper
    }
    Add-Log $tick $extension $status
  } catch [Exception] {
    Write-Output $_.Exception|format-list -force
    Add-Log $cross $extension "Could not install $extension on PHP $($installed.FullVersion)"
  }
}