package seo

import (
	"net/http"
	"time"

	apicontrollers "git.golem15.com/golem15/sm-seo-plugin/controllers/api"
	"git.golem15.com/golem15/summercms/modules/pact"
	"git.golem15.com/golem15/summercms/modules/surf"
)

// BucketResolve is the throttle bucket of the public resolve endpoint.
const BucketResolve = "seo-resolve"

// Routes mounts the public /_seo/api/v1 endpoints. They carry no backend
// middleware: the frontend server calls them anonymously.
func (p *Plugin) Routes(r pact.Router) error {
	r.Group("/_seo/api/v1", surf.Use("throttle:"+BucketResolve), func(g pact.Router) {
		g.Get("/resolve", apicontrollers.Resolve(p.Service))
	})
	return nil
}

// Buckets registers seo-resolve: 600 requests a minute per client IP behind
// the configured trusted proxies (the frontend server resolves every page
// it renders).
func (p *Plugin) Buckets() map[string]surf.Bucket {
	trusted := surf.TrustedProxies(nil)
	if p.app != nil {
		trusted = surf.TrustedProxies(p.app.Config)
	}
	return map[string]surf.Bucket{
		BucketResolve: {
			Name:  BucketResolve,
			Max:   600,
			Decay: time.Minute,
			Key: func(r *http.Request) string {
				return BucketResolve + "|" + surf.ClientIP(r, trusted)
			},
		},
	}
}