package proxy

import "context"

// RouteOptions holds optional configuration for a proxy route.
type RouteOptions struct {
	SSLCertificateID int
	AccessListID     int    // NPM access list ID for authentication, 0 = public
	ForwardScheme    string // "http" or "https", defaults to "http"
}

// Provider is the interface for proxy route management.
// Implementations handle the specifics of each proxy system (NPM, Traefik, etc.).
// The "None" provider implements all methods as no-ops.
type Provider interface {
	// Name returns the provider identifier (e.g., "npm", "traefik", "none").
	Name() string

	// ConfigureRoute creates or updates a proxy route for the given domain.
	// Returns a route ID string that can be used for updates and deletes.
	// For NPM, the route ID is the proxy host ID (stringified).
	// For Traefik, the route ID is the router name.
	// For None, returns empty string.
	ConfigureRoute(ctx context.Context, domain, targetHost string, targetPort int, opts RouteOptions) (routeID string, err error)

	// DeleteRoute removes a proxy route by its route ID.
	// Does nothing if routeID is empty.
	DeleteRoute(ctx context.Context, routeID string) error

	// ContainerLabels returns Docker labels to set on containers at creation time.
	// Traefik uses labels for auto-discovery; NPM and None return nil.
	ContainerLabels(domain string, port int) map[string]string

	// Ping checks connectivity to the proxy backend.
	// Returns nil if healthy or if the provider doesn't need external connectivity (None).
	Ping(ctx context.Context) error
}