package main

import (
	"fmt"
	"time"

	"github.com/kataras/iris/v12"
	"github.com/kataras/iris/v12/mvc"
	"github.com/kataras/iris/v12/sessions"
)

func main() {
    app := iris.New()

	// Configure sessions manager as we used to.
	sess := sessions.New(sessions.Config{Cookie: "mysession_cookie_name"})
	app.Use(sess.Handler())

    visitApp := mvc.New(app)
    visitApp.Register(time.Now())
	visitApp.Handle(new(VisitController))

	app.Listen(":8080")
}

type VisitController struct {
	Session *sessions.Session

	StartTime time.Time
}

func (c *VisitController) Get() string {
	// it increments a "visits" value of integer by one,
    // if the entry with key 'visits' doesn't exist
    // it will create it for you.
	visits := c.Session.Increment("visits", 1)
	// write the current, updated visits.
	since := time.Now().Sub(c.StartTime).Seconds()
	return fmt.Sprintf("%d visit(s) from my current session in %0.1f seconds of server's up-time",
		visits, since)
}