############### MAIN ###############
# main function
#
$Main =
{
    [CmdletBinding()]
    Param(
        [Parameter(Mandatory=$true)]
        [ValidateNotNullOrEmpty()]
        [string] $destHost,
        [Parameter(Mandatory=$false)]
        [string[]] $apps
    )
    $applist=[System.Collections.Generic.List[object]]::new()
    If($PSBoundParameters.ContainsKey("apps")) {
        foreach ($appname in $apps)
        {
            if ($appname.Contains('*')) {
                $wclist=Get-ChildItem $appname -Directory |  ForEach-Object { $_.Name }
                # if wildcard is specified, we only add folders with a 'stacks' subfolder
                foreach ($wcname in $wclist) {
                    if ((Test-Path -Path "$wcname\stacks")) {
                        $applist.Add($wcname)
                     }
                }
            }
            else {
                # here we don't have to check for a 'stacks' subfolder as the user specified appname explicitly
                $applist.Add($appname)
            }
        }
        # remove duplicates
        $uniqlist=$applist | Sort-Object -Unique
        foreach ($appname in $uniqlist)
        {
            copyfolder $destHost $appname "$appname\"
        }
    }
    else {
        # we're in the app subfolder, so only one stacks folder to copy
        $appname="$pwd".Split("\\")[-1]
        copyfolder $destHost  $appname ".\"
    }
}

#######################################################################
# copies specified app's stacks and traefik-rules subfolders to truenas
# 
Function copyfolder
{
    [CmdletBinding()]
    Param(
        [Parameter(Mandatory=$true)]
        [ValidateNotNullOrEmpty()]
        [string] $destHost,

        [Parameter(Mandatory=$true)]
        [ValidateNotNullOrEmpty()]
        [string] $appname,

        [Parameter(Mandatory=$true)]
        [ValidateNotNullOrEmpty()]
        [string] $srcdir
    )
    $srcStacksDir=$srcdir+"stacks"
    $srcTraefikRulesDir=$srcdir+"traefik-rules"
    if (-Not(Test-Path -Path $srcStacksDir)) {
        Write-Host "Source path doesn't exist: ""$PSScriptRoot\$srcStacksDir\*.*"". No files copied!"  -ForegroundColor Red
        Write-Host "Usage: in app folder       : ./cp2nas DEST|IP"
        Write-Host "       in app parent folder: ./cp2nas DEST|IP app1, app2, app3, ..."
        Write-Host "       in app parent folder: ./cp2nas DEST|IP *"
        Write-Host "       in app parent folder: ./cp2nas DEST|IP wcstring1, wcstring2, ..."
        return
    }
    $destStacks="/mnt/SSD1/docker/stacks/"
    $destDir=$destStacks+$appname+"/"
    $destTraefikRulesDir=$destStacks+"traefik/rules/"
    $date=Get-Date -format "yyyy-MM-ddTHH:mm:ss"
    Write-Host "$date# pscp -P 22 -r ""$srcStacksDir\*.*"" root@${destHost}:""${destDir}""" -ForegroundColor Green
    Write-Host "Copying to ${destHost}:""${destStacks}" -NoNewline 
    Write-Host "${appname}/" -ForegroundColor DarkYellow  -NoNewline 
    Write-Host """:"
    pscp -P 22 -r "$srcStacksDir\*.*" root@${destHost}:""${destDir}""
    if ((Test-Path -Path "$srcTraefikRulesDir")) {
        Write-Host "$date# pscp -P 22 -r ""$srcTraefikRulesDir\*.*"" root@${destHost}:""${destTraefikRulesDir}""" -ForegroundColor Green
        Write-Host "Copying to ${destHost}:""${destStacks}" -NoNewline 
        Write-Host "traefik/rules/" -ForegroundColor DarkYellow  -NoNewline 
        Write-Host """:"
        pscp -P 22 -r "$srcTraefikRulesDir\*.*" root@${destHost}:""${destTraefikRulesDir}""
    }
}

###################################
& $Main @Args