[CmdletBinding(SupportsShouldProcess)]param(
  [ArgumentCompleter({ param (
      $commandName,
      $parameterName,
      $wordToComplete,
      $commandAst,
      $fakeBoundParameters
    )
    [FunctionName]::_GetValidValues($wordToComplete,$true)
  })]
  [string[]]$ImportFunction,
  [ArgumentCompleter({ param (
      $commandName,
      $parameterName,
      $wordToComplete,
      $commandAst,
      $fakeBoundParameters
    )
    [SystemName]::_GetValidValues($wordToComplete,$false,$true)
  })]
  [string]$System,
  [switch]$ForceImport,
  [Parameter(Position = 0, ValueFromRemainingArguments = $true)]
  [ArgumentCompleter({ param (
      $commandName,
      $parameterName,
      $wordToComplete,
      $commandAst,
      $fakeBoundParameters
    )
    $local:possibleValues = [MyScript]::_GetValidValues($wordToComplete,$true)
    if( $fakeBoundParameters.ContainsKey("System") ) {
      $possibleValues = $possibleValues | Where-Object { $_ -match "^sys\.$($fakeBoundParameters.System)" } | ForEach-Object { $_ -replace "^sys\.$($fakeBoundParameters.System).",'' }
    }
    $possibleValues
  })]
  [string[]]$ScriptName
)

$local:EditRootPath=$MyPSScriptRoot
if( $System ) {
    $EditRootPath = Join-Path $EditRootPath "sys.$System"
}
$local:ScriptPaths = @()
foreach( $local:p in $ImportFunction ) {
  $local:f = Get-Command $p -Type Function
  if( $f ) {
    $local:sp = Join-Path $EditRootPath "$p`.ps1"
    if( $ForceImport -or -not (Test-Path $sp) ) {
      Export-FunctionSource $p -NoHeader > $sp
    } elseif ( -not $ForceImport ) {
      throw "$p already exists in Script, to import the function again, use the -Force"
    }
    $ScriptPaths += $sp
  }
}
foreach( $local:p in $ScriptName ) {
  $local:sp = Join-Path $EditRootPath "$p`.ps1"
  $ScriptPaths += $sp
}

if( -not $ScriptPaths ) {
  $ScriptPaths += $EditRootPath
}

foreach( $local:p in $ScriptPaths ) {
    $local:parentPath = Split-Path -Parent $p;
    if( -not (Test-Path $p) -and -not (Test-Path $parentPath) ) {
        Write-Verbose "Creating missing path $parentPath..."
        New-Item -Type Directory $parentPath
    }
}

$local:sw = [System.Diagnostics.Stopwatch]::StartNew();
Edit-TextFile $ScriptPaths
$sw.Stop();

if( $sw.Elapsed.TotalSeconds -lt 1 ) {
  $null = Read-Host "Waiting before refreshing. Press <Enter> when you're done editing ( don't forget to save ;) )..."
}

Get-Command Reload-MyScripts -ErrorAction SilentlyContinue |
  ForEach-Object { . $_.Definition }