@startuml deployment-architecture
skinparam backgroundColor white

title SmartTools Deployment Architecture

node "Production Server" {
    package "Application" {
        [Flask App Port 5050] as Flask
        [Gunicorn WSGI] as Gunicorn
    }

    package "Process Management" {
        [systemd Service] as Systemd
    }

    database "SQLite Database" as DB

    folder "Static Files" {
        [CSS/JS/Images] as Static
    }
}

node "Reverse Proxy" {
    [nginx] as Nginx
}

cloud "Internet" {
    actor "Users" as Users
    [Sentry.io] as Sentry
}

node "Development" {
    [Flask Dev Server] as DevFlask
    database "Dev SQLite" as DevDB
}

Users --> Nginx : HTTPS 443
Nginx --> Gunicorn : HTTP 5050
Gunicorn --> Flask
Flask --> DB
Flask --> Static
Systemd --> Gunicorn : manages
Flask ..> Sentry : error reports

Users --> DevFlask : HTTP 5050
DevFlask --> DevDB

note right of Flask
  Environment Variables:
  FLASK_ENV=production
  SECRET_KEY=<secret>
  SENTRY_DSN=<dsn>
  SITE_URL=https://...
end note

note right of Systemd
  /etc/systemd/system/
  smarttools-web.service

  gunicorn -w 4
  -b 0.0.0.0:5050
end note

note bottom of Nginx
  SSL termination
  Proxy to localhost:5050
  Static file caching
end note

@enduml