package web

import (
	"bytes"
	"html/template"
	"net/http"

	root "marmic/servicetrade-toolbox"
	"marmic/servicetrade-toolbox/internal/api"
	"marmic/servicetrade-toolbox/internal/middleware"

	"github.com/gorilla/csrf"
)

func GenericHandler(w http.ResponseWriter, r *http.Request) {
	session, ok := r.Context().Value(middleware.SessionKey).(*api.Session)
	if !ok {
		http.Error(w, "Unauthorized", http.StatusUnauthorized)
		return
	}

	tmpl := root.WebTemplates
	var csrfCookie string
	if c, err := r.Cookie("XSRF-TOKEN"); err == nil {
		csrfCookie = c.Value
	} else if c, err := r.Cookie("XSRF-TOKEN-VALUE"); err == nil {
		csrfCookie = c.Value
	}
	data := map[string]interface{}{
		"Title":      "Generic",
		"Session":    session,
		"CSRFField":  csrf.TemplateField(r),
		"CSRFToken":  csrf.Token(r),
		"CSRFCookie": csrfCookie,
	}

	if r.Header.Get("HX-Request") == "true" {
		if err := tmpl.ExecuteTemplate(w, "generic_content", data); err != nil {
			http.Error(w, "Internal Server Error", http.StatusInternalServerError)
		}
		return
	}

	var contentBuf bytes.Buffer
	if err := tmpl.ExecuteTemplate(&contentBuf, "generic_content", data); err != nil {
		http.Error(w, "Internal Server Error", http.StatusInternalServerError)
		return
	}
	data["BodyContent"] = template.HTML(contentBuf.String())

	if err := tmpl.ExecuteTemplate(w, "layout.html", data); err != nil {
		http.Error(w, "Internal Server Error", http.StatusInternalServerError)
	}
}