package home

import (
	"fmt"
	"net/http"

	"github.com/rs/zerolog/log"

	"librapi/forms"
	"librapi/services"
	"librapi/templates"
)

const URL = "/"

func Handler(bs services.IStore) func(http.ResponseWriter, *http.Request) {
	return func(w http.ResponseWriter, r *http.Request) {
		switch r.Method {
		case http.MethodGet:
			getHome(w, r)
		case http.MethodPost:
			postHome(w, r, bs)
		default:
			http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
		}
	}
}

func getHome(w http.ResponseWriter, _ *http.Request) {
	tmpl, err := templates.ExecuteHomeTmpl(&forms.SearchForm{}, w)
	if err != nil {
		log.Err(err).Msg("unable to generate home template")
		return
	}

	fmt.Fprint(w, tmpl)
}

func postHome(w http.ResponseWriter, r *http.Request, bs services.IStore) {
	sf := forms.SearchFormFromRequest(r)
	bms, err := bs.Search(sf.Search.Value)
	if err != nil {
		sf.Error = err
		tmpl, err := templates.ExecuteHomeTmpl(&sf, w)
		if err != nil {
			log.Err(err).Msg("unable to generate home template")
			return
		}

		w.WriteHeader(http.StatusInternalServerError)
		fmt.Fprint(w, tmpl)
		return
	}

	sf.Results = bms

	tmpl, err := templates.ExecuteHomeTmpl(&sf, w)
	if err != nil {
		log.Err(err).Msg("unable to generate home template")
		return
	}

	fmt.Fprint(w, tmpl)
}