setup.ps1

# Downloads the two player binaries into player\ and verifies their SHA-256 hashes.
# mpv.exe is hosted in this project's GitHub release because it exceeds git's
# 100 MB file limit; yt-dlp.exe comes straight from the official yt-dlp release.
param(
    [string]$MpvUrl = 'https://github.com/csszyft/GuidePad/releases/download/v1.0/mpv.exe',
    [string]$YtdlpUrl = 'https://github.com/yt-dlp/yt-dlp/releases/download/2026.10.21/yt-dlp.exe'
)
$ErrorActionPreference = 'Stop'
$expected = [ordered]@{
    'mpv.exe'    = '8c2e4d24eb961723cc5e2f1f4401982836e82c96e0e0a944c0576090fc48993f'
    'yt-dlp.exe' = '33121d192d706e62f684a06f80918e3f3a8ba52ac3a65213b6951c39c7d9f555'
}
$sources = @{
    'mpv.exe'    = $MpvUrl
    'yt-dlp.exe' = $YtdlpUrl
}
foreach ($name in $expected.Keys) {
    $target = Join-Path $PSScriptRoot (Join-Path 'player' $name)
    if (Test-Path -LiteralPath $target) {
        $hash = (Get-FileHash -LiteralPath $target -Algorithm SHA256).Hash.ToLowerInvariant()
        if ($hash -eq $expected[$name]) {
            Write-Host "$name already present, hash OK."
            continue
        }
        Write-Host "$name exists but its hash does not match; downloading a fresh copy."
        Remove-Item -LiteralPath $target -Force
    }
    Write-Host "Downloading $name ..."
    & curl.exe -sSL -o $target $sources[$name]
    if ($LASTEXITCODE -ne 0) { throw "Failed to download $name from $($sources[$name])" }
    $hash = (Get-FileHash -LiteralPath $target -Algorithm SHA256).Hash.ToLowerInvariant()
    if ($hash -ne $expected[$name]) { throw "SHA-256 mismatch for $name`n  expected $($expected[$name])`n  actual   $hash" }
    Write-Host "$name downloaded, hash OK."
}
Write-Host 'Player setup complete. You can now start GuidePad.exe.'