# hlog CLI installer for Windows — https://hlog.dev/docs/cli
# usage: irm https://hlog.dev/install.ps1 | iex
$ErrorActionPreference = 'Stop'
$ProgressPreference = 'SilentlyContinue'

if (-not [Environment]::Is64BitOperatingSystem) { throw 'hlog: only 64-bit Windows is supported' }
$asset = 'hlog-x86_64-pc-windows-msvc.zip'
$base  = 'https://github.com/siddharthsingh89/hlog-cli/releases/latest/download'
$dir   = Join-Path $env:LOCALAPPDATA 'hlog\bin'
$tmp   = Join-Path ([IO.Path]::GetTempPath()) ('hlog-' + [Guid]::NewGuid())
New-Item -ItemType Directory -Force -Path $tmp | Out-Null

try {
  Write-Host "downloading $asset ..."
  Invoke-WebRequest -UseBasicParsing "$base/$asset" -OutFile (Join-Path $tmp $asset)
  Invoke-WebRequest -UseBasicParsing "$base/$asset.sha256" -OutFile (Join-Path $tmp "$asset.sha256")
  $expected = ((Get-Content (Join-Path $tmp "$asset.sha256") -Raw).Trim() -split '\s+')[0].ToLower()
  $actual   = (Get-FileHash (Join-Path $tmp $asset) -Algorithm SHA256).Hash.ToLower()
  if ($expected -ne $actual) { throw 'hlog: checksum mismatch - not installing' }

  New-Item -ItemType Directory -Force -Path $dir | Out-Null
  Expand-Archive -Force (Join-Path $tmp $asset) -DestinationPath $dir
  Write-Host "installed: $dir\hlog.exe"

  $userPath = [Environment]::GetEnvironmentVariable('Path', 'User')
  if (-not (($userPath -split ';') -contains $dir)) {
    [Environment]::SetEnvironmentVariable('Path', ($userPath.TrimEnd(';') + ';' + $dir).TrimStart(';'), 'User')
    $env:Path = $env:Path + ';' + $dir
    Write-Host "added $dir to your PATH (open a new terminal if 'hlog' isn't found)"
  }

  # Another hlog earlier on the PATH (an old cargo install, say) would run instead of this one.
  $exe   = [IO.Path]::GetFullPath((Join-Path $dir 'hlog.exe'))
  $first = Get-Command hlog -CommandType Application -ErrorAction SilentlyContinue | Select-Object -First 1
  if ($first -and ([IO.Path]::GetFullPath($first.Source) -ne $exe)) {
    $v = try { & $first.Source --version 2>$null } catch { 'unknown version' }
    Write-Warning "another hlog ($v) at $($first.Source) comes first on your PATH, so 'hlog' runs that one."
    if ($first.Source -like '*\.cargo\bin\*') { Write-Host '  fix: cargo uninstall hlog   (or update it: cargo install hlog)' }
    elseif ($first.Source -like '*\scoop\*') { Write-Host '  fix: scoop uninstall hlog   (or update it: scoop update hlog)' }
    else { Write-Host "  fix: delete it, or move $dir earlier in your PATH" }
  }
  Write-Host 'next: hlog login'
} finally {
  Remove-Item -Recurse -Force $tmp -ErrorAction SilentlyContinue
}