param(
    [Parameter(Mandatory = $true)]
    [string]$Out,

    [Parameter(Mandatory = $true)]
    [string]$Chroma
)

$ErrorActionPreference = "Stop"

$generatedRoot = "C:\Users\ekeer\.codex\generated_images\019f264c-a00f-7d81-ab4c-aa0d0c7fc422"
$python = "C:\Users\ekeer\AppData\Local\Programs\KiCad\10.0\bin\python.exe"
$removeScript = "C:\Users\ekeer\.codex\skills\.system\imagegen\scripts\remove_chroma_key.py"

$latest = Get-ChildItem -LiteralPath $generatedRoot -Recurse -File -Filter *.png |
    Sort-Object LastWriteTime -Descending |
    Select-Object -First 1

if (-not $latest) {
    throw "No generated PNG found under $generatedRoot"
}

$outPath = Join-Path (Get-Location) $Out
$chromaPath = Join-Path (Get-Location) $Chroma
$outDir = Split-Path -Parent $outPath
$chromaDir = Split-Path -Parent $chromaPath

New-Item -ItemType Directory -Force -Path $outDir | Out-Null
New-Item -ItemType Directory -Force -Path $chromaDir | Out-Null

Copy-Item -LiteralPath $latest.FullName -Destination $chromaPath -Force

& $python $removeScript `
    --input $chromaPath `
    --out $outPath `
    --auto-key border `
    --tolerance 96 `
    --force

Add-Type -AssemblyName System.Drawing
$bmp = [System.Drawing.Bitmap]::FromFile($outPath)
try {
    $w = $bmp.Width
    $h = $bmp.Height
    $cornerAlpha = @(
        $bmp.GetPixel(0, 0).A,
        $bmp.GetPixel($w - 1, 0).A,
        $bmp.GetPixel(0, $h - 1).A,
        $bmp.GetPixel($w - 1, $h - 1).A
    ) -join ","
    [PSCustomObject]@{
        Source = $latest.FullName
        Out = $outPath
        Width = $w
        Height = $h
        PixelFormat = $bmp.PixelFormat
        CornerAlpha = $cornerAlpha
    }
}
finally {
    $bmp.Dispose()
}