package registry

import (
	"fmt"
	"path"

	"git.capotej.com/capotej/communique/config"
	"git.capotej.com/capotej/communique/resources"
)

type Handler struct {
	handlerCfg config.Handler
}

type Registry struct {
	cfg        config.Config
	handlerMap map[string]Handler
}

func NewRegistry(cfg config.Config) *Registry {
	reg := Registry{cfg: cfg}
	reg.handlerMap = make(map[string]Handler)
	for _, v := range cfg.Handlers {
		fqdn := fmt.Sprintf("acct:%s@%s", v.Name, cfg.Domain)
		reg.handlerMap[fqdn] = Handler{handlerCfg: v}
	}
	return &reg
}

func (r *Registry) LookupByName(name string) *resources.WebfingerResource {
	fqdn := fmt.Sprintf("acct:%s@%s", name, r.cfg.Domain)
	return r.LookupResource(fqdn)
}

func (r *Registry) LookupResource(fqdn string) *resources.WebfingerResource {
	handler, ok := r.handlerMap[fqdn]
	if !ok {
		return nil
	}
	rs := resources.WebfingerResource{
		Subject: fmt.Sprintf("acct:%s@%s", handler.handlerCfg.Name, r.cfg.Domain),
		Aliases: []string{},
		Links: []resources.Link{{
			Rel:  "self",
			Href: path.Join("https://", r.cfg.Domain, "actors", handler.handlerCfg.Name),
			Type: "application/activity+json",
		}},
	}
	return &rs

}