#Requires -Version 5.1
# Standalone preflight contract checks; synthetic metadata, no Cargo/build/UI.
$ErrorActionPreference = 'Stop'
Set-StrictMode -Version Latest
. (Join-Path $PSScriptRoot 'windows-notices.ps1')
$fixture = Join-Path ([IO.Path]::GetTempPath()) ('arcadia-notices-' + [guid]::NewGuid().ToString('N'))
[void][IO.Directory]::CreateDirectory($fixture)
$utf8 = New-Object Text.UTF8Encoding($false)
function Write-Fixture([string]$Relative, [string]$Text) {
    $path = Join-Path $fixture $Relative
    [void][IO.Directory]::CreateDirectory([IO.Path]::GetDirectoryName($path))
    [IO.File]::WriteAllText($path, $Text, $utf8)
    return $path
}
$null = Write-Fixture 'LICENSE' 'Synthetic workspace license for tests only'
$null = Write-Fixture 'Cargo.toml' '[workspace]'
$null = Write-Fixture 'rust/share/doc/rust/COPYRIGHT.html' 'Synthetic Rust distribution notice'
$null = Write-Fixture 'rust/share/doc/rust/COPYRIGHT-library.html' 'Synthetic Rust library notice'
$null = Write-Fixture 'rust/lib/fake.rlib' 'Synthetic target library'
$packages = @(); $nodes = @(); $lock = @()
foreach ($name in @('oa-desktop', 'oa-server', 'normal', 'build', 'dev-only', 'unreachable')) {
    $external = $name -notlike 'oa-*'
    $root = if ($external) { "registry/src/test/$name-1.0.0" } else { "workspace/$name" }
    $manifest = Write-Fixture "$root/Cargo.toml" "[package]`nname = `"$name`"`nversion = `"1.0.0`""
    $null = Write-Fixture "$root/src/lib.rs" '// synthetic source'
    $null = Write-Fixture "$root/LICENSE" "Synthetic notice for $name"
    $source = if ($external) { 'registry+https://github.com/rust-lang/crates.io-index' } else { $null }
    $id = $name
    if ($external) {
        $archive = Write-Fixture "registry/cache/test/$name-1.0.0.crate" "Synthetic cached archive $name"
        $sha = (Get-FileHash -LiteralPath $archive -Algorithm SHA256).Hash.ToLowerInvariant()
        $lock += "[[package]]`nname = `"$name`"`nversion = `"1.0.0`"`nsource = `"$source`"`nchecksum = `"$sha`"`n"
    }
    $packages += [pscustomobject]@{ id = $id; name = $name; version = '1.0.0'; source = $source; license = 'MIT'; license_file = $null; manifest_path = $manifest; repository = 'https://example.invalid/test' }
    $deps = @()
    if ($name -eq 'oa-desktop') {
        foreach ($pair in @(@('normal', $null), @('build', 'build'), @('dev-only', 'dev'))) {
            $deps += [pscustomobject]@{ pkg = $pair[0]; dep_kinds = @([pscustomobject]@{ kind = $pair[1] }) }
        }
    }
    $nodes += [pscustomobject]@{ id = $id; deps = $deps; features = @() }
}
$null = Write-Fixture 'Cargo.lock' ($lock -join "`n")
$script:FixtureMetadata = [pscustomobject]@{ packages = $packages; workspace_members = @('oa-desktop', 'oa-server'); resolve = [pscustomobject]@{ nodes = $nodes } }
function cargo {
    if (($args -join ' ') -notmatch '--locked --offline' -or ($args -join ' ') -notmatch '--filter-platform x86_64-pc-windows-msvc') { throw 'Unexpected Cargo command' }
    $global:LASTEXITCODE = 0
    $script:FixtureMetadata | ConvertTo-Json -Depth 12
}
function rustc {
    $global:LASTEXITCODE = 0
    if ($args[0] -eq '-Vv') { return 'rustc synthetic-test' }
    if ($args[1] -eq 'sysroot') { return (Join-Path $fixture 'rust') }
    if ($args[1] -eq 'target-libdir') { return (Join-Path $fixture 'rust/lib') }
    throw 'Unexpected Rust command'
}
$manifestPath = Write-Fixture 'supplements/manifest.json' '{"packages":[],"assets":[],"runtimes":[]}'
function Collect { Get-WindowsNotices $fixture x86_64-pc-windows-msvc $manifestPath '' }
function Assert([bool]$Condition, [string]$Message) { if (-not $Condition) { throw $Message } }
function Refuses([string]$Pattern) {
    try { $null = Collect; throw 'Expected preflight refusal' } catch {
        if ($_.Exception.Message -notmatch $Pattern) { throw }
    }
}
$result = Collect
$names = @($result.Inventory.packages | ForEach-Object { $_.name })
Assert ($names.Count -eq 4 -and $names -contains 'normal' -and $names -contains 'build' -and $names -notcontains 'dev-only' -and $names -notcontains 'unreachable') 'Normal/build graph selection failed'
Assert ($result.Inventory.rust.notices.Count -eq 2) 'Rust reports missing'
$before = ($result.Inventory.packages | Where-Object name -eq normal).local_source_sha256['src/lib.rs']
$null = Write-Fixture 'registry/src/test/normal-1.0.0/src/lib.rs' '// locally changed source'
$after = ((Collect).Inventory.packages | Where-Object name -eq normal).local_source_sha256['src/lib.rs']
Assert ($before -ne $after) 'Local source hash was replaced by a cached checksum'
$null = Write-Fixture 'registry/cache/test/normal-1.0.0.crate' 'Tampered archive'
Refuses 'Cached crate archive differs'
$null = Write-Fixture 'registry/cache/test/normal-1.0.0.crate' 'Synthetic cached archive normal'
$null = Write-Fixture 'registry/src/test/normal-1.0.0/src/lib.rs' 'static FONT: &[u8] = include_bytes!("../font.ttf");'
$null = Write-Fixture 'registry/src/test/normal-1.0.0/font.ttf' 'Synthetic font bytes'
Refuses 'Embedded font requires exact notice mapping'
$null = Write-Fixture 'registry/src/test/normal-1.0.0/src/lib.rs' '// no font'
$pkg = $script:FixtureMetadata.packages | Where-Object name -eq normal
$pkg.source = 'git+https://example.invalid/test#123'
Refuses 'Unsupported source requiring deliberate review'
$pkg.source = 'registry+https://github.com/rust-lang/crates.io-index'
$normalHash = (Get-FileHash -LiteralPath (Join-Path $fixture 'registry/cache/test/normal-1.0.0.crate') -Algorithm SHA256).Hash.ToLowerInvariant()
$bad = [ordered]@{ packages = @([ordered]@{ name = 'normal'; version = '1.0.0'; checksum = $normalHash; notices = @([ordered]@{ file = '../LICENSE'; sha256 = ('0' * 64); url = 'https://example.invalid/test' }) }); assets = @(); runtimes = @() }
$null = Write-Fixture 'supplements/manifest.json' ($bad | ConvertTo-Json -Depth 8)
Refuses 'Notice path escapes source root'
$bad.packages[0].notices[0].file = 'NOTICE.txt'
$null = Write-Fixture 'supplements/NOTICE.txt' 'Synthetic supplemental notice'
$null = Write-Fixture 'supplements/manifest.json' ($bad | ConvertTo-Json -Depth 8)
Refuses 'Supplement changed'
Write-Output 'PASS: normal/build selection, Rust reports, actual local source hashes, stale archive refusal, unmapped font refusal, unsupported source refusal, traversal refusal, altered supplement refusal.'
Write-Output "Synthetic fixture retained for inspection: $fixture"