[CmdletBinding()]
param(
  [switch]$DryRun,
  [switch]$SkipAdmin,
  [switch]$SkipClient,
  [switch]$SkipPda
)

$ErrorActionPreference = 'Stop'
$repoRoot = (Resolve-Path (Join-Path $PSScriptRoot '../..')).Path

function Invoke-FrontendStep {
  param([string]$Name, [string]$Directory, [string]$Task)
  $display = "pnpm --dir `"$Directory`" $Task"
  Write-Host "  [$Name] $display"
  if ($DryRun) { return }
  & pnpm --dir $Directory $Task
  if ($LASTEXITCODE -ne 0) { exit $LASTEXITCODE }
}

function Invoke-PdaTests {
  param([string]$Directory)
  $pattern = Join-Path $Directory 'tests/*.test.mjs'
  Write-Host "  [test] node --test `"$pattern`""
  if ($DryRun) { return }
  & node --test $pattern
  if ($LASTEXITCODE -ne 0) { exit $LASTEXITCODE }
}

if ($SkipAdmin -and $SkipClient -and $SkipPda) { Write-Error 'At least one of Admin, Client or PDA must be selected.'; exit 2 }
if ((-not $SkipAdmin -or -not $SkipClient) -and -not (Get-Command pnpm -ErrorAction SilentlyContinue)) {
  Write-Error 'pnpm was not found on PATH.'; exit 2
}
if (-not $SkipPda -and -not (Get-Command node -ErrorAction SilentlyContinue)) {
  Write-Error 'node was not found on PATH.'; exit 2
}

$targets = @()
if (-not $SkipAdmin) { $targets += @{ Name = 'Admin'; Directory = Join-Path $repoRoot 'apps/admin-web' } }
if (-not $SkipClient) { $targets += @{ Name = 'Client'; Directory = Join-Path $repoRoot 'apps/client-web' } }

Write-Host 'Frontend full regression (local only)'
Write-Host "Repository: $repoRoot"
Write-Host "Mode: $(if ($DryRun) { 'DryRun' } else { 'Execute' })"
Write-Host 'Gateway/database/deployment: not used'

foreach ($target in $targets) {
  $packageJson = Join-Path $target.Directory 'package.json'
  if (-not (Test-Path -LiteralPath $packageJson)) { Write-Error "$($target.Name) package.json not found: $packageJson"; exit 2 }
  Write-Host "[$($target.Name)]"
  Invoke-FrontendStep 'test' $target.Directory 'test'
  Invoke-FrontendStep 'typecheck' $target.Directory 'typecheck'
}

if (-not $SkipPda) {
  $pdaTargets = @(
    @{ Name = 'Domestic PDA'; Directory = Join-Path $repoRoot 'apps/pda-uniapp' },
    @{ Name = 'Overseas PDA'; Directory = Join-Path $repoRoot 'apps/pda-overseas-uniapp' }
  )
  foreach ($pdaTarget in $pdaTargets) {
    if (-not (Test-Path -LiteralPath (Join-Path $pdaTarget.Directory 'tests'))) {
      Write-Error "$($pdaTarget.Name) tests directory not found: $($pdaTarget.Directory)"; exit 2
    }
    Write-Host "[$($pdaTarget.Name)]"
    Invoke-PdaTests $pdaTarget.Directory
  }
}

Write-Host 'Frontend regression completed.'