# install.ps1 — install OpenSpec skills + /opsx commands into ZCode user directory.
# Native Windows PowerShell. Idempotent: safe to re-run.
[CmdletBinding()]
param(
  [string]$ZCodeHome = (Join-Path $env:USERPROFILE ".zcode")
)

$ErrorActionPreference = "Stop"

# Resolve repo root (directory of this script).
$Src = $PSScriptRoot
if (-not $Src) { $Src = Split-Path -Parent $MyInvocation.MyCommand.Path }

$SkillsSrc    = Join-Path $Src "skills"
$CommandsSrc  = Join-Path $Src "commands\opsx"
$SkillsDest   = Join-Path $ZCodeHome "skills"
$CommandsDest = Join-Path $ZCodeHome "commands\opsx"

# Sanity checks.
if (-not (Test-Path -LiteralPath $SkillsSrc)) {
  Write-Error "Source skills directory not found at: $SkillsSrc"
  exit 1
}
if (-not (Test-Path -LiteralPath $CommandsSrc)) {
  Write-Error "Source commands directory not found at: $CommandsSrc"
  exit 1
}

# Create destination dirs.
New-Item -ItemType Directory -Force -Path $SkillsDest   | Out-Null
New-Item -ItemType Directory -Force -Path $CommandsDest | Out-Null

# Copy each openspec-* skill directory, replacing if it already exists.
$skillCount = 0
Get-ChildItem -LiteralPath $SkillsSrc -Directory -Filter "openspec-*" | ForEach-Object {
  $name = $_.Name
  $target = Join-Path $SkillsDest $name
  if (Test-Path -LiteralPath $target) { Remove-Item -LiteralPath $target -Recurse -Force }
  Copy-Item -LiteralPath $_.FullName -Destination $target -Recurse -Force
  $skillCount++
}

# Copy each /opsx command file.
$cmdCount = 0
Get-ChildItem -LiteralPath $CommandsSrc -Filter "*.md" -File | ForEach-Object {
  Copy-Item -LiteralPath $_.FullName -Destination $CommandsDest -Force
  $cmdCount++
}

Write-Host "✓ Installed $skillCount skills + $cmdCount commands to $ZCodeHome"
Write-Host "  Skills:   $SkillsDest\openspec-*\SKILL.md"
Write-Host "  Commands: $CommandsDest\*.md  →  /opsx:<name>"
Write-Host ""
Write-Host "Restart ZCode (or start a new session) to pick up the new skills and commands."