package router

import (
	"net/http"

	"go.jolheiser.com/blog/post"
	"go.jolheiser.com/blog/static"

	"github.com/go-chi/chi/v5"
	"github.com/go-chi/chi/v5/middleware"
	"github.com/rs/zerolog/log"
)

func New(blog *post.Blog) *chi.Mux {
	m := chi.NewMux()

	m.Use(middleware.Logger)
	m.Use(middleware.Recoverer)

	m.Get("/", indexHandler(blog))
	m.Get("/{post}", fileHandler(blog))
	m.Route("/_", func(r chi.Router) {
		r.Get("/sakura.css", static.SakuraCSS)
	})

	return m
}

func indexHandler(blog *post.Blog) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		if err := static.IndexTemplate.Execute(w, blog); err != nil {
			log.Error().Err(err).Msg("could not execute template")
		}
	}
}

func fileHandler(blog *post.Blog) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		postName := chi.URLParam(r, "post")
		p, ok := blog.Post(postName)
		if !ok {
			w.WriteHeader(http.StatusNotFound)
			return
		}

		if err := static.PostTemplate.Execute(w, p); err != nil {
			log.Error().Err(err).Msg("could not execute template")
		}
	}
}