const express = require("express");
const eventsController = require("../controllers/event");
const router = express.Router();
const tsUtils = require("../lib/utils")
const {teamsnapCallback} = require("../lib/utils")
const multer = require("multer");
const upload = multer()

// Middleware
const loadEvent = (req,res,next) => {
  const {team_id, event_id} = req.params;
  const bulkLoadTypes = ["event", "availabilitySummary"]
  req.promises.push(
    teamsnap.bulkLoad(
      {teamId: team_id, types: bulkLoadTypes, scopeTo:'event', event__id:event_id},
       null,  
       (err, items) => {teamsnapCallback(err, items, {req, source:"loadEvent", method:'bulkLoad'})}
       )
  .then(bulkLoadItems=>{
    const items = tsUtils.groupTeamsnapItems(bulkLoadItems, bulkLoadTypes);
    req.availabilitySummary = items.availabilitySummaries.find(e=>e.eventId==event_id);
    req.event = items.events.find(e=>e.id==event_id);
  }
  ))
  next();
}

// Middleware
const loadEvents = async (req,res,next) => {
  const {team_id, event_id} = req.params
  req.timeline = {}
  await Promise.all(req.promises)
  const {recent_events, upcoming_events} = req
  const eventIds = [...recent_events.map(e=>e.id), event_id, ...upcoming_events.map(e=>e.id)]
  // if (!req.event_lineup){
    bulkLoadTypes = ['event','eventLineup', 'eventLineupEntry']
    req.promises.push(
      teamsnap.bulkLoad(
        {teamId: team_id, types: bulkLoadTypes, scopeTo:'event', event__id:eventIds}, 
        null, 
        (err, items) => {teamsnapCallback(err, items, {req, source:"loadEvents", method:'bulkLoad'})}
        )
    .then(items => tsUtils.groupTeamsnapItems(items, bulkLoadTypes))
    .then(items => {
                    req.timeline.events = items.events;
                    req.timeline.event_lineups = items.eventLineups;
                    req.timeline.event_lineup_entries = items.eventLineupEntries;
                    })
                    )
    
    req.promises.push(
      teamsnap.loadAvailabilities(
        {eventId: eventIds},
        (err, items) => {teamsnapCallback(err, items, {req, source:"loadEvents", method:'loadAvailabilities'})}
        ).then(availabilities => {
        req.timeline.availabilities = availabilities
      }
      )
      )
  // }
  // else {
  //   // const {event_lineup} = req
  // }
  const {event_lineup} = req
  next();
}

router.use("/:team_id([0-9]+)/event/:event_id([0-9]+)", loadEvent)

// Routes
router.get("/:team_id([0-9]+)/schedule", eventsController.getEvents);
router.get("/:team_id([0-9]+)/event/:event_id([0-9]+)", eventsController.getEvent);
router.post("/:team_id([0-9]+)/event/:event_id([0-9]+)/availability_reminders", upload.none(), eventsController.sendAvailabilityReminders)

router.get("/:team_id([0-9]+)/event/:event_id([0-9]+)/modal-confirm-availability-reminders/", eventsController.confirmModalAvailabilityReminders)
router.post("/:team_id([0-9]+)/event/:event_id([0-9]+)/reset_availabilities",upload.none(), eventsController.submitResetAvailabilities)

module.exports = {router, loadEvent, loadEvents}