package main

// Small generic oauth authentication server to retrieve oauth tokens
// from mastodon instances.

import (
	"github.com/gorilla/websocket"
	"github.com/labstack/echo"
	"github.com/labstack/echo/middleware"
)

// github.com/oklog/ulid

var (
	upgrader = websocket.Upgrader{}
)

type App struct {
	AuthQueue *AuthenticationQueue
}

func (a *App) authRequestWebSocket(c echo.Context) error {
	ws, err := upgrader.Upgrade(c.Response(), c.Request(), nil)

	if err != nil {
		return err
	}

	client := &AuthRequestClient{
		conn: ws,
	}

	req, err := client.ReceiveRequest()

	if err != nil {
		return err
	}

	a.AuthQueue.QueueRequest(req)
	return nil
}

func main() {
	q := &AuthenticationQueue{}

	q.startRequestChanListener()

	a := &App{
		AuthQueue: q,
	}

	e := echo.New()
	e.Use(middleware.Logger())
	e.Use(middleware.Recover())
	e.Static("/", "../public")
	e.GET("/ws", a.authRequestWebSocket)
	e.Logger.Fatal(e.Start(":1323"))
}