Add powershell wrapper

Autocomplete.

screenshots.ps1

@@ -0,0 +1,176 @@
+<#
+    .SYNOPSIS
+        Powershell wrapper for screenshots.py
+    .DESCRIPTION
+        A wrapper that provides readline and autocomplete functionality for screenshots.py.
+        Linux users have access to argcomplete, which is less straightforward to implement
+        on Windows. This script attempts to fill that gap
+    .NOTES
+        This script does minimal input validation and mostly relies on the python script.
+
+        For help, please use the -Help parameter which calls the python script.
+#>
+
+[CmdletBinding(DefaultParameterSetName = 'Frames')]
+param (
+    [Parameter(Mandatory = $false, Position = 0, ParameterSetName = 'Frames')]
+    [Parameter(Mandatory = $false, Position = 0, ParameterSetName = 'RandomFrames')]
+    [ValidateScript(
+        {
+            if (!(Test-Path $_)) {
+                throw "Source input path does not exist"
+            }
+            else { $true }
+        }
+    )]
+    [Alias('S')]
+    [string]$Source,
+
+    [Parameter(Mandatory = $false, ParameterSetName = 'Frames')]
+    [Parameter(Mandatory = $false, ParameterSetName = 'RandomFrames')]
+    [ValidateScript(
+        {
+            $res = $_.ForEach({ Test-Path $_ })
+            if ($res -contains $false) { throw "One ore more file paths do not exist" }
+            else { $true }
+        }
+    )]
+    [Alias('E')]
+    [string[]]$Encodes,
+
+    [Parameter(Mandatory = $true, ParameterSetName = 'Frames')]
+    [Alias('F')]
+    [int[]]$Frames,
+
+    [Parameter(Mandatory = $true, ParameterSetName = 'RandomFrames')]
+    [ValidateCount(3, 3)]
+    [Alias('RF')]
+    [int[]]$RandomFrames,
+
+    [Parameter(Mandatory = $false, ParameterSetName = 'Frames')]
+    [Parameter(Mandatory = $false, ParameterSetName = 'RandomFrames')]
+    [Alias('O')]
+    [int]$Offset,
+
+    [Parameter(Mandatory = $false, ParameterSetName = 'Frames')]
+    [Parameter(Mandatory = $false, ParameterSetName = 'RandomFrames')]
+    [ValidateCount(2, 2)]
+    [Alias('C')]
+    [int[]]$Crop,
+
+    [Parameter(Mandatory = $false, ParameterSetName = 'Frames')]
+    [Parameter(Mandatory = $false, ParameterSetName = 'RandomFrames')]
+    [Alias('T')]
+    [string[]]$Titles,
+
+    [Parameter(Mandatory = $false, ParameterSetName = 'Frames')]
+    [Parameter(Mandatory = $false, ParameterSetName = 'RandomFrames')]
+    [ValidateScript(
+        {
+            if (!(Test-Path $_)) {
+                throw "Input directory does not exist"
+            }
+            else { $true }
+        }
+    )]
+    [Alias('D')]
+    [string]$InputDirectory,
+
+    [Parameter(Mandatory = $false, ParameterSetName = 'Frames')]
+    [Parameter(Mandatory = $false, ParameterSetName = 'RandomFrames')]
+    [Alias('OD')]
+    [string]$OutputDirectory,
+
+    [Parameter(Mandatory = $false, ParameterSetName = 'Frames')]
+    [Parameter(Mandatory = $false, ParameterSetName = 'RandomFrames')]
+    [ValidateSet('bilinear', 'bicubic', 'point', 'lanczos', 'spline16', 'spline36', 'spline64')]
+    [Alias('K')]
+    [string]$ResizeKernel,
+
+    [Parameter(Mandatory = $false, ParameterSetName = 'Frames')]
+    [Parameter(Mandatory = $false, ParameterSetName = 'RandomFrames')]
+    [ValidateSet('lsmas', 'ffms2')]
+    [Alias('LF')]
+    [string]$LoadFilter,
+
+    [Parameter(Mandatory = $false, ParameterSetName = 'Frames')]
+    [Parameter(Mandatory = $false, ParameterSetName = 'RandomFrames')]
+    [Alias('NI')]
+    [switch]$NoFrameInfo,
+
+    [Parameter(Mandatory = $true, ParameterSetName = 'Help')]
+    [Alias('H')]
+    [switch]$Help
+)
+
+if (!$PSBoundParameters['Source'] -and !$PSBoundParameters['Encodes'] -and !$PSBoundParameters['InputDirectory']) {
+    Write-Error "No input files or directories were provided" -ErrorAction Stop
+}
+
+if (!(Get-Command 'python')) {
+    Write-Error "Python could not be resolved in system PATH" -ErrorAction Stop
+}
+
+$scriptPath = Join-Path $PSScriptRoot -ChildPath 'screenshots.py'
+if (!(Test-Path $scriptPath)) {
+    Write-Error "Could not locate 'screenshots.py'. Are you running the wrapper from the same directory?" -ErrorAction Stop
+}
+
+if ($Help) {
+    & python $scriptPath -h
+    exit 0
+}
+
+$pyArgs = @(
+    $scriptPath
+    if ($PSBoundParameters['Source']) {
+        '-s'
+        $Source
+    }
+    if ($PSBoundParameters['Encodes']) {
+        '-e'
+        $Encodes
+    }
+    if ($PSBoundParameters['Titles']) {
+        '-t'
+        $Titles
+    }
+    if ($PSBoundParameters['Crop']) {
+        '-c'
+        $Crop
+    }
+    if ($PSBoundParameters['Frames']) {
+        '-f'
+        $Frames
+    }
+    if ($PSBoundParameters['RandomFrames']) {
+        '-rf'
+        $RandomFrames
+    }
+    if ($PSBoundParameters['Offset']) {
+        '-o'
+        $Offset
+    }
+    if ($PSBoundParameters['InputDirectory']) {
+        '-d'
+        $InputDirectory
+    }
+    if ($PSBoundParameters['OutputDirectory']) {
+        '-od'
+        $OutputDirectory
+    }
+    if ($PSBoundParameters['ResizeKernel']) {
+        '-k'
+        $ResizeKernel
+    }
+    if ($PSBoundParameters['LoadFilter']) {
+        '-lf'
+        $LoadFilter
+    }
+    if ($NoFrameInfo) {
+        '-ni'
+    }
+)
+
+# Execute python screenshots script with params
+& python $pyArgs