package handler

import (
	"fmt"
	"net/http"
	"os"
)

// Post is the handler that renders a post.
func Post(w http.ResponseWriter, r *http.Request) {
	fileName := "content" + r.URL.Path + ".md"

	// Check if the post exists and is not a directory.
	info, err := os.Stat(fileName)
	if os.IsNotExist(err) || (info != nil && info.IsDir()) {
		w.WriteHeader(http.StatusNotFound)
		CurrentTheme.ExecuteTemplate(w, "404.tmpl", nil)
		return
	}
	if err != nil {
		w.WriteHeader(http.StatusInternalServerError)
		CurrentTheme.ExecuteTemplate(w, "500.tmpl", fmt.Errorf("error reading content folder: %w", err))
		return
	}

	// TODO Make it actually pass in a post.
	CurrentTheme.ExecuteTemplate(w, "post.tmpl", nil)
}