<#
    LXS - platform dispatcher (Windows side)

    Thin shim kept at the repo root so the documented one-liner stays short and
    stable while the real implementation lives in windows\lxs.ps1:

        irm https://git.hyko.cx/hykocx/lxs/raw/branch/main/lxs.ps1 | iex
        & ([scriptblock]::Create((irm https://git.hyko.cx/hykocx/lxs/raw/branch/main/lxs.ps1))) setup

    Repo: https://git.hyko.cx/hykocx/lxs
    License: MIT
#>

$LxsShimArgs = @($args)

$LxsRepoUrl = 'https://git.hyko.cx/hykocx/lxs'
$LxsBranch  = if ($env:LXS_BRANCH) { $env:LXS_BRANCH } else { 'main' }
$LxsRawBase = if ($env:LXS_RAW_BASE) { $env:LXS_RAW_BASE } else { "$LxsRepoUrl/raw/branch/$LxsBranch" }
$LxsPlatformDir = 'windows'

# Running this shim under pwsh on Linux/macOS is a mistake worth catching.
if ($PSVersionTable.PSVersion.Major -ge 6 -and
    -not [System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform(
        [System.Runtime.InteropServices.OSPlatform]::Windows)) {
    Write-Error 'lxs.ps1 is the Windows entrypoint. On Linux or macOS, use lxs.sh instead.'
    exit 1
}

# Locate a sibling windows\lxs.ps1 (repo checkout or installed layout).
$LxsSelfDir = $PSScriptRoot
if (-not $LxsSelfDir -and $MyInvocation.MyCommand.Path) {
    $LxsSelfDir = Split-Path -Parent $MyInvocation.MyCommand.Path
}

if ($LxsSelfDir) {
    $local = Join-Path $LxsSelfDir "$LxsPlatformDir\lxs.ps1"
    if (Test-Path $local) {
        & $local @LxsShimArgs
        exit $LASTEXITCODE
    }
}

# No files on disk — we were piped from irm. Fetch the platform entrypoint.
$temp = Join-Path $env:TEMP ("lxs.entrypoint.{0}.ps1" -f [guid]::NewGuid().ToString('N').Substring(0, 8))
try {
    Invoke-WebRequest -Uri "$LxsRawBase/$LxsPlatformDir/lxs.ps1" -OutFile $temp `
        -UseBasicParsing -Headers @{ 'Cache-Control' = 'no-cache' } -ErrorAction Stop
} catch {
    Write-Error "lxs: failed to fetch $LxsRawBase/$LxsPlatformDir/lxs.ps1"
    exit 1
}

try {
    $global:LASTEXITCODE = 0
    & $temp @LxsShimArgs
    $code = $LASTEXITCODE
} finally {
    Remove-Item $temp -Force -ErrorAction SilentlyContinue
}
exit $code