package routing

import (
	lishwist "lishwist/core"
	"lishwist/http/api"
	"lishwist/http/rsvp"
	"net/http"
)

func Login(h http.Header, r *rsvp.Request) rsvp.Response {
	session := r.GetSession()

	props := api.NewLoginProps("", "")

	flash := session.FlashGet()
	flashProps, ok := flash.(*api.LoginProps)
	if ok {
		props.Username.Value = flashProps.Username.Value

		props.GeneralError = flashProps.GeneralError
		props.Username.Error = flashProps.Username.Error
		props.Password.Error = flashProps.Password.Error
	}

	flash = session.FlashGet()
	successfulReg, _ := flash.(bool)
	if successfulReg {
		props.SuccessfulRegistration = true
	}

	return rsvp.Data("login.gotmpl", props).SaveSession(session)
}

func LoginPost(h http.Header, r *rsvp.Request) rsvp.Response {
	form := r.ParseForm()
	session := r.GetSession()

	username := form.Get("username")
	password := form.Get("password")

	props := api.NewLoginProps(username, password)

	valid := props.Validate()
	props.Password.Value = ""
	if !valid {
		session.FlashSet(&props)
		return rsvp.SeeOther("/").SaveSession(session).Log("Invalid props: %#v\n", props)
	}

	app, err := lishwist.Login(username, password)
	if err != nil {
		switch err.(type) {
		case lishwist.ErrorInvalidCredentials:
			props.GeneralError = "Username or password invalid"
			session.FlashSet(&props)
			return rsvp.SeeOther("/").SaveSession(session).Log("Invalid credentials: %#v\n", props)
		default:
			props.GeneralError = "Something went wrong."
			session.FlashSet(&props)
			return rsvp.SeeOther("/").SaveSession(session).Log("Login error: %s\n", err)
		}
	}

	session.SetID("")
	session.SetValue("authorized", true)
	session.SetValue("username", app.User.Name)

	return rsvp.SeeOther(r.URL().Path).SaveSession(session)
}