# Avalos AI Coder Engine — one-line installer.  Usage:  irm https://avalos.ai/install.ps1 | iex
# Sovereign, private. Downloads the CLI, registers the `avalos` command, points you at login.
$ErrorActionPreference = "Stop"
Write-Host ""
Write-Host "  Avalos AI — Coder Engine" -ForegroundColor Yellow
Write-Host "  Sovereign. Sandbox-verified. No big-3." -ForegroundColor DarkGray
Write-Host ""

# 1. python check
if (-not (Get-Command python -ErrorAction SilentlyContinue)) {
    Write-Host "  ! Python 3 is required (python.org). Install it, then re-run this." -ForegroundColor Red
    return
}

# 1b. ensure 'rich' (polished console) + 'prompt_toolkit' (↑/↓ history + line editing)
try { python -m pip install -q --disable-pip-version-check rich prompt_toolkit 2>$null | Out-Null; Write-Host "  + console UI ready (rich + prompt_toolkit)" -ForegroundColor Green } catch {}

# 2. download the CLI to ~/.avalos
$dir = Join-Path $HOME ".avalos"
New-Item -ItemType Directory -Force -Path $dir | Out-Null
$cli = Join-Path $dir "avalos.py"
Invoke-WebRequest -Uri "https://avalos.ai/avalos.py" -OutFile $cli -UseBasicParsing
Write-Host "  + CLI installed → $cli" -ForegroundColor Green

# 3. register the `avalosai` command (+ `avalos` alias) in the PowerShell profile
if (-not (Test-Path $PROFILE)) { New-Item -ItemType File -Force -Path $PROFILE | Out-Null }
$fn1 = "function avalosai { python `"$cli`" @args }"
$fn2 = "Set-Alias avalos avalosai"
if (-not (Select-String -Path $PROFILE -Pattern 'function avalosai ' -Quiet -ErrorAction SilentlyContinue)) {
    Add-Content -Path $PROFILE -Value "`n# Avalos AI Coder Engine`n$fn1`n$fn2"
    Write-Host "  + 'avalosai' command registered in your PowerShell profile (alias: avalos)" -ForegroundColor Green
} else {
    Write-Host "  = 'avalosai' command already registered" -ForegroundColor DarkGray
}

# 4. load it into the current session so it works immediately
Invoke-Expression $fn1
Invoke-Expression $fn2

Write-Host ""
Write-Host "  Done. Two steps to start:" -ForegroundColor Yellow
Write-Host "     avalosai login <your-api-key>       " -NoNewline; Write-Host "(create one at avalos.ai → Developer)" -ForegroundColor DarkGray
Write-Host "     avalosai myfile.py `"fix the bug`"     " -NoNewline; Write-Host "(edits in place, verified, with a .bak)" -ForegroundColor DarkGray
Write-Host ""
Write-Host "  New terminals have 'avalosai' automatically. Type  avalosai  for help." -ForegroundColor DarkGray
Write-Host ""