# Svarog installer for Windows 10/11.
#   irm https://svarog.ch/install.ps1 | iex
$ErrorActionPreference = "Stop"
function Say($m){ Write-Host "[svarog] $m" -ForegroundColor Magenta }

$Home_ = $env:USERPROFILE
$SVAROG = Join-Path $Home_ ".svarog"
$RAW = "https://svarog.ch"

# 1) python
if (-not (Get-Command python -ErrorAction SilentlyContinue)) {
  Say "Python 3 is required. Install from https://python.org (check 'Add to PATH') and re-run."
  throw "python missing"
}
# 2) node + claude code
if (-not (Get-Command claude -ErrorAction SilentlyContinue)) {
  if (Get-Command npm -ErrorAction SilentlyContinue) {
    Say "installing Claude Code CLI..."; npm install -g "@anthropic-ai/claude-code"
  } else {
    Say "Node.js/npm not found — install Node 18+ from https://nodejs.org then re-run."
  }
}
# 3) router venv
Say "setting up router in $SVAROG"
New-Item -ItemType Directory -Force -Path $SVAROG | Out-Null
python -m venv "$SVAROG\venv"
& "$SVAROG\venv\Scripts\pip.exe" install -q --upgrade pip
& "$SVAROG\venv\Scripts\pip.exe" install -q fastapi uvicorn httpx g4f
Invoke-WebRequest -Uri "$RAW/svarog_g4f_router.py" -OutFile "$SVAROG\svarog_g4f_router.py"

# 4) svarog.cmd launcher on PATH
$BIN = Join-Path $env:LOCALAPPDATA "svarog"
New-Item -ItemType Directory -Force -Path $BIN | Out-Null
@"
@echo off
set PORT=8117
curl -fsS --max-time 2 http://127.0.0.1:%PORT%/__health >nul 2>&1
if errorlevel 1 (
  start "" /b "$SVAROG\venv\Scripts\python.exe" -m uvicorn svarog_g4f_router:app --host 127.0.0.1 --port %PORT% --app-dir "$SVAROG"
  timeout /t 6 >nul
)
set ANTHROPIC_BASE_URL=http://127.0.0.1:%PORT%
set ANTHROPIC_AUTH_TOKEN=svarog-local
set ANTHROPIC_API_KEY=svarog-local
set CLAUDE_CODE_ATTRIBUTION_HEADER=0
claude --dangerously-skip-permissions %*
"@ | Set-Content -Encoding ASCII (Join-Path $BIN "svarog.cmd")

# add to user PATH
$userPath = [Environment]::GetEnvironmentVariable("Path","User")
if ($userPath -notlike "*$BIN*") {
  [Environment]::SetEnvironmentVariable("Path", "$userPath;$BIN", "User")
  Say "added $BIN to your PATH (restart the terminal)"
}
Say "done. open a new terminal and run:  svarog"