package cethttp

import (
	"database/sql"
	"net/http"
	"strconv"

	"github.com/gorilla/mux"
	"github.com/senaduka/cetvorke/database"
)

// editHandler handles the editing of an existing post.
func editHandler(w http.ResponseWriter, r *http.Request) {
	vars := mux.Vars(r)
	postID, err := strconv.Atoi(vars["postID"])
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	// Fetch the post from the database.
	post, err := database.GetPost(postID)
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	// Check if the request method is POST.
	if r.Method == "POST" {
		// Get the edited content from the form.
		editedContent := r.FormValue("editor")
		editedTitle := r.FormValue("title")

		// Update the post content.
		post.GemtextContent = sql.NullString{String: editedContent, Valid: true}
		post.Title = editedTitle

		// Save the edited post to the database.
		err := database.UpdatePost(post)
		if err != nil {
			http.Error(w, err.Error(), http.StatusInternalServerError)
			return
		}

		// Redirect to the edited post.
		http.Redirect(w, r, "/p/"+vars["postID"]+"/"+post.TitleSlug, http.StatusSeeOther)
		return
	}

	// Display the edit form.
	response := editorHtml5Page(post)
	w.Write([]byte(response))
}

// newHandler handles the creation of a new post.
func newHandler(w http.ResponseWriter, r *http.Request) {
	// Create a new empty post in the database.
	newPost, err := database.CreateNewPost()
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	// Redirect to the editHandler for the new post.
	http.Redirect(w, r, "/editor/e/"+strconv.Itoa(newPost.ID), http.StatusSeeOther)
}