package server

import (
	"encoding/gob"
	"net/http"
	"strings"

	"lishwist/http/api"
	"lishwist/http/env"
	"lishwist/http/response"
	"lishwist/http/router"
	"lishwist/http/routing"
	"lishwist/http/session"

	"github.com/Teajey/rsvp"
)

func prefixMovedPermanently(before, after string) response.HandlerFunc {
	return func(s *response.Session, h http.Header, r *http.Request) rsvp.Response {
		suffix := strings.TrimPrefix(r.RequestURI, before)
		return rsvp.MovedPermanently(after + suffix)
	}
}

func prefixPermanentRedirect(before, after string) response.HandlerFunc {
	return func(s *response.Session, h http.Header, r *http.Request) rsvp.Response {
		suffix := strings.TrimPrefix(r.RequestURI, before)
		return rsvp.PermanentRedirect(after + suffix)
	}
}

func Create(useSecureCookies bool) *router.VisibilityRouter {
	gob.Register(&api.RegisterProps{})
	gob.Register(&api.LoginProps{})

	store := session.NewInMemoryStore([]byte(env.Configuration.SessionSecret))
	store.Options.MaxAge = 86_400 // 24 hours in seconds
	store.Options.Secure = useSecureCookies
	store.Options.HttpOnly = true
	store.Options.Path = "/"
	store.Options.SameSite = http.SameSiteLaxMode

	r := router.New(store)

	r.Public.HandleFunc("GET /", routing.Login)
	r.Public.HandleFunc("GET /groups/{groupReference}", routing.PublicGroup)
	r.Public.HandleFunc("GET /lists/{userReference}", routing.PublicWishlist)
	r.Public.HandleFunc("GET /register", routing.Register)
	r.Public.HandleFunc("POST /", routing.LoginPost)
	r.Public.HandleFunc("POST /register", routing.RegisterPost)

	r.Private.HandleFunc("GET /health", routing.ExpectAppSession(routing.Health))
	r.Private.HandleFunc("GET /", routing.NotFound)
	r.Private.HandleFunc("GET /groups", routing.ExpectAppSession(routing.Groups))
	r.Private.HandleFunc("GET /groups/{groupReference}", routing.ExpectAppSession(routing.Group))
	r.Private.HandleFunc("GET /lists/{userReference}", routing.ExpectAppSession(routing.ForeignWishlist))
	r.Private.HandleFunc("GET /users", routing.ExpectAppSession(routing.Users))
	r.Private.HandleFunc("GET /users/{userReference}", routing.ExpectAppSession(routing.User))
	r.Private.HandleFunc("GET /{$}", routing.ExpectAppSession(routing.Home))
	r.Private.HandleFunc("POST /groups/{groupReference}", routing.ExpectAppSession(routing.GroupPost))
	r.Private.HandleFunc("POST /lists/{userReference}", routing.ExpectAppSession(routing.ForeignWishlistPost))
	r.Private.HandleFunc("POST /logout", routing.LogoutPost)
	r.Private.HandleFunc("POST /users/{userReference}", routing.ExpectAppSession(routing.UserPost))
	r.Private.HandleFunc("POST /{$}", routing.ExpectAppSession(routing.HomePost))

	// Deprecated
	r.HandleFunc("GET /group/{groupReference}", prefixMovedPermanently("/group/", "/groups/"))
	r.HandleFunc("GET /list/{groupReference}", prefixMovedPermanently("/list/", "/lists/"))
	r.HandleFunc("POST /group/{groupReference}", prefixPermanentRedirect("/group/", "/groups/"))
	r.HandleFunc("POST /list/{groupReference}", prefixPermanentRedirect("/list/", "/lists/"))

	return r
}