package controllers

import play.api.libs.json._
import play.api.mvc._

import lila.api.Context
import lila.app._
import lila.common.{ LilaCookie, HTTPRequest }
import views._

object Lobby extends LilaController {

  def home = Open { implicit ctx =>
    negotiate(
      html = renderHome(Results.Ok).map(_.withHeaders(
        CACHE_CONTROL -> "no-cache", PRAGMA -> "no-cache"
      )),
      api = _ => fuccess {
        Ok(Json.obj(
          "lobby" -> Json.obj(
            "version" -> Env.lobby.history.version)
        ))
      }
    )
  }

  def handleStatus(req: RequestHeader, status: Results.Status): Fu[Result] =
    reqToCtx(req) flatMap { ctx => renderHome(status)(ctx) }

  def renderHome(status: Results.Status)(implicit ctx: Context): Fu[Result] =
    Env.current.preloader(
      posts = Env.forum.recent(ctx.me, Env.team.cached.teamIds),
      tours = Env.tournament promotable true
    ) map (html.lobby.home.apply _).tupled map { template =>
        // the session cookie is required for anon lobby filter storage
        ctx.req.session.data.contains(LilaCookie.sessionId).fold(
          status(template),
          status(template) withCookies LilaCookie.makeSessionId(ctx.req)
        )
      }

  def playing = Auth { implicit ctx =>
    me =>
      if (HTTPRequest isSynchronousHttp ctx.req)
        fuccess(Redirect(routes.Lobby.home))
      else lila.game.GameRepo nowPlaying me map { povs =>
        html.lobby.playing(povs)
      }
  }

  def seeks = Open { implicit ctx =>
    ctx.me.fold(Env.lobby.seekApi.forAnon)(Env.lobby.seekApi.forUser) flatMap { seeks =>
      negotiate(
        html = if (HTTPRequest isSynchronousHttp ctx.req) fuccess(Redirect(routes.Lobby.home))
        else fuccess(html.lobby.seeks(seeks)),
        api = _ => fuccess(Ok(JsArray(seeks.map(_.render))))
      )
    }
  }

  def socket(apiVersion: Int) = Socket[JsValue] { implicit ctx =>
    get("sri") ?? { uid =>
      Env.lobby.socketHandler(uid = uid, user = ctx.me)
    }
  }

  def timeline = Auth { implicit ctx =>
    me =>
      Env.timeline.getter.userEntries(me.id) map { html.timeline.entries(_) }
  }

  def timelineMore = Auth { implicit ctx =>
    me =>
      Env.timeline.getter.moreUserEntries(me.id) map { html.timeline.more(_) }
  }
}