84 lines
3.0 KiB
PowerShell
84 lines
3.0 KiB
PowerShell
$ErrorActionPreference = 'Stop'
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$root = Split-Path -Parent $PSScriptRoot
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Add-Type -AssemblyName System.Drawing
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$backgrounds = @(
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'static/assets/foundation/opaque/auth-header.png',
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'static/assets/foundation/opaque/auth-page-paper.jpg',
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'static/assets/foundation/transparent/auth-ink-scenery.png'
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)
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$icons = @(
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'static/assets/foundation/transparent/auth-login-outline.png',
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'static/assets/foundation/transparent/auth-wechat.png',
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'static/assets/foundation/transparent/auth-divider-knot.png',
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'static/assets/foundation/transparent/auth-title-cloud.png'
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)
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$buttons = @(
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'static/assets/foundation/opaque/a01-primary-button.png',
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'static/assets/foundation/opaque/a01-secondary-button.png'
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)
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foreach ($asset in $backgrounds + $icons + $buttons) {
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if (-not (Test-Path -LiteralPath (Join-Path $root $asset))) {
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throw "Missing A01 asset: $asset"
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}
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}
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foreach ($asset in $icons) {
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$bitmap = [System.Drawing.Bitmap]::FromFile((Join-Path $root $asset))
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$width = [int]$bitmap.Width
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$height = [int]$bitmap.Height
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$corners = @(
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$bitmap.GetPixel(0, 0).A,
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$bitmap.GetPixel(($width - 1), 0).A,
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$bitmap.GetPixel(0, ($height - 1)).A,
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$bitmap.GetPixel(($width - 1), ($height - 1)).A
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)
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$visiblePixels = 0
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for ($y = 0; $y -lt $height; $y++) {
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for ($x = 0; $x -lt $width; $x++) {
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if ($bitmap.GetPixel($x, $y).A -gt 24) { $visiblePixels++ }
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}
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}
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$bitmap.Dispose()
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$expectedSize = switch ($asset) {
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'static/assets/foundation/transparent/auth-divider-knot.png' { @(160, 96) }
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'static/assets/foundation/transparent/auth-title-cloud.png' { @(200, 120) }
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default { @(96, 96) }
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}
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if ($width -ne $expectedSize[0] -or $height -ne $expectedSize[1]) { throw "$asset must be $($expectedSize[0]) x $($expectedSize[1])px." }
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if (($corners | Where-Object { $_ -ne 0 }).Count -ne 0) { throw "$asset has opaque outer corners." }
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if ($visiblePixels -lt 80) { throw "$asset has no usable visible artwork." }
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Write-Output "PASS $asset transparent corners and visible artwork"
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}
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foreach ($asset in $buttons) {
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$bitmap = [System.Drawing.Bitmap]::FromFile((Join-Path $root $asset))
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$width = [int]$bitmap.Width
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$height = [int]$bitmap.Height
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$corners = @(
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$bitmap.GetPixel(0, 0).A,
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$bitmap.GetPixel(($width - 1), 0).A,
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$bitmap.GetPixel(0, ($height - 1)).A,
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$bitmap.GetPixel(($width - 1), ($height - 1)).A
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)
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$chromaPixels = 0
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for ($y = 0; $y -lt $height; $y++) {
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for ($x = 0; $x -lt $width; $x++) {
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$pixel = $bitmap.GetPixel($x, $y)
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if ($pixel.G - [Math]::Max($pixel.R, $pixel.B) -gt 80 -and $pixel.G -gt 120) { $chromaPixels++ }
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}
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}
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$bitmap.Dispose()
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$ratio = [double]$width / $height
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if ([Math]::Abs($ratio - 4.492) -gt 0.01) { throw "$asset must keep the approved 4.492:1 button ratio." }
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if (($corners | Where-Object { $_ -ne 255 }).Count -ne 0) { throw "$asset must have opaque outer corners." }
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if ($chromaPixels -ne 0) { throw "$asset retains chroma-key green pixels." }
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Write-Output "PASS $asset opaque corners and approved button ratio"
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}
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Write-Output 'A01-ASSET-ALPHA-AUDIT PASS'
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