Companion script for ue4-docker image builds

param(
     [Parameter(Mandatory=$true, HelpMessage="Engine version to build")]
     [string]$version,

     [Parameter(HelpMessage="The repo you want to push your image to (OPTIONAL)")]
     [string]$repo,

     [Parameter(HelpMessage="If specified, will clean all of the build images for the version specified in the variable version")]
     [switch]$clean,

     [Parameter(HelpMessage="If specified, will tag your image with repo:version and push it")]
     [switch]$push,

     [Parameter(Mandatory=$true, HelpMessage="Github user that has access to the Unreal Engine repo")]
     [string]$user,

     [Parameter(Mandatory=$true, HelpMessage="Github PAT for the user specified in user")]
     [string]$token
 )

if ($clean.IsPresent) {
    Write-Host "Cleaning old build images for tag $($version)";
    ue4-docker clean -tag $version;
} else {
    Write-Host "Skipped cleaning of old build images";
}

Write-Host "Building Unreal Engine version: $($version).";
ue4-docker build $version -username $user -p $token --exclude debug --exclude templates --monitor --opt buildgraph_args="-set:GameConfigurations=Shipping;DebugGame;Development -set:HostPlatformOnly=true -set:WithClient=false -set:WithServer=false" --visual-studio=2022;

if ($push.IsPresent) {
    $docker_tag = "$($repo):$($version)";
    Write-Host "Creating tag for $($docker_tag)";
    docker tag adamrehn/ue4-full:$($version) "$($docker_tag)";
    docker push "$($docker_tag)";
} else {
    Write-Host "Skipped cleaning of old build images";
}