# Avalos AI Coder Engine - one-line installer.  Usage:  irm https://avalos.ai/install.ps1 | iex
# Sovereign, private. Downloads the CLI, registers the `avalosai` command, points you at login.
$ErrorActionPreference = "Stop"
$ver = "1.4.1"
Write-Host ""
Write-Host "  Avalos AI - Coder Engine $ver" -ForegroundColor Yellow
Write-Host "  Sovereign. Works in your own folders. Asks before every change." -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' (up/down 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 and its local tools to ~/.avalos
$dir = Join-Path $HOME ".avalos"
New-Item -ItemType Directory -Force -Path $dir | Out-Null
$cli = Join-Path $dir "avalos.py"
$tools = Join-Path $dir "avalos_agent.py"
$esc = Join-Path $dir "avalos_escalation.py"
$pb = Join-Path $dir "avalos_probatio.py"
Invoke-WebRequest -Uri "https://avalos.ai/avalos.py?v=$ver" -OutFile $cli -UseBasicParsing
Invoke-WebRequest -Uri "https://avalos.ai/downloads/avalos_agent.py?v=$ver" -OutFile $tools -UseBasicParsing
Invoke-WebRequest -Uri "https://avalos.ai/downloads/avalos_escalation.py?v=$ver" -OutFile $esc -UseBasicParsing
Invoke-WebRequest -Uri "https://avalos.ai/downloads/avalos_probatio.py?v=$ver" -OutFile $pb -UseBasicParsing
if (-not (Select-String -Path $cli -Pattern "__version__ = `"$ver`"" -Quiet) -or ((Get-Item $tools).Length -lt 2000) -or ((Get-Item $esc).Length -lt 2000) -or ((Get-Item $pb).Length -lt 2000)) {
    Write-Host "  ! download incomplete - please re-run the installer" -ForegroundColor Red
    return
}
Write-Host "  + Coder Engine $ver installed -> $dir" -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. To start:" -ForegroundColor Yellow
Write-Host "     avalosai login avl_live_xxxxxxxx    " -NoNewline; Write-Host "(paste your key; create one at avalos.ai -> Developer)" -ForegroundColor DarkGray
Write-Host "     cd C:\path\to\your\project" -ForegroundColor White
Write-Host "     avalosai                            " -NoNewline; Write-Host "(then just type what you want done)" -ForegroundColor DarkGray
Write-Host ""
Write-Host "  It reads your files freely; every edit and command is shown to you and asked first." -ForegroundColor DarkGray
Write-Host ""