# Setup script for n8n-io/self-hosted-ai-starter-kit on Windows (PowerShell), from https://gitmanual.com/n8n-io/self-hosted-ai-starter-kit
# Read it before you run it: the commands come from the repo's own README and files.
# Run: powershell -ExecutionPolicy Bypass -File .\setup.ps1
$ErrorActionPreference = "Stop"
function Write-Step($t) { Write-Host "`n==> $t" -ForegroundColor Cyan }
# Windows ships a python that only opens the Microsoft Store; it doesn't count.
function Have($c) { $cmd = Get-Command $c -ErrorAction SilentlyContinue; [bool]$cmd -and $cmd.Source -notlike '*\WindowsApps\*' }
# New installs change PATH; pick it up without opening a new window.
function Update-Path { $env:Path = [Environment]::GetEnvironmentVariable("Path", "Machine") + ";" + [Environment]::GetEnvironmentVariable("Path", "User") }
# Stop when a program fails, like bash's set -e. Dot-sourced, so cd and venv activation carry on to the next step.
function Invoke-Step([scriptblock]$Block) { $global:LASTEXITCODE = 0; . $Block; if ($LASTEXITCODE) { throw "Failed with exit code $LASTEXITCODE" } }

Write-Step '1/3 Clone the repository'
if (-not (Test-Path 'self-hosted-ai-starter-kit')) { Invoke-Step { git clone https://github.com/n8n-io/self-hosted-ai-starter-kit.git } }
Set-Location 'self-hosted-ai-starter-kit'

Write-Step '2/3 Configure environment variables'
# Fill in secrets: POSTGRES_PASSWORD, N8N_ENCRYPTION_KEY, N8N_USER_MANAGEMENT_JWT_SECRET
if (-not (Test-Path .env)) { Copy-Item .env.example .env; Write-Host 'Created .env. Fill in secrets: POSTGRES_PASSWORD, N8N_ENCRYPTION_KEY, N8N_USER_MANAGEMENT_JWT_SECRET in .env, then run this script again.'; exit 0 }

Write-Step '3/3 Start backing services'
# Needs: PostgreSQL, Vector DB
if (-not (Have 'docker')) { Invoke-Step { winget install Docker.DockerDesktop -e --accept-source-agreements --accept-package-agreements }; Update-Path }
Invoke-Step { docker compose -f docker-compose.yml up -d }

Write-Host 'Set up n8n-io/self-hosted-ai-starter-kit.'
Write-Host 'Fill in secrets: POSTGRES_PASSWORD, N8N_ENCRYPTION_KEY, N8N_USER_MANAGEMENT_JWT_SECRET'
Write-Host 'Manual: https://gitmanual.com/n8n-io/self-hosted-ai-starter-kit'