package web

import (
	"net/http"
)

type LoginPageData struct {
	PageDataBase

	ErrorMessage string
}

func (ws *WebServer) LoginHandler(w http.ResponseWriter, r *http.Request) {
	loginData := LoginPageData{}

	if r.Method == http.MethodPost {
		if err := r.ParseForm(); err != nil {
			loginData.ErrorMessage = "Failed to parse form data"
		} else {
			password := r.FormValue("password")
			if password != ws.adminPassword || ws.adminPassword == "" {
				loginData.ErrorMessage = "Invalid password"
			} else {
				sessionID := generateSessionID()
				if sessionID == "" {
					loginData.ErrorMessage = "Failed to generate session ID"
				}

				ws.sessions[sessionID] = "admin"
				http.SetCookie(w, &http.Cookie{
					Name:     "session_id",
					Value:    sessionID,
					Path:     "/",
					HttpOnly: true,
				})
				http.Redirect(w, r, "/", http.StatusSeeOther)
			}
		}
	}

	ws.renderTemplate(w, r, "templates/login.html", &loginData)
}