RootView = require 'views/core/RootView'
template = require 'templates/clans/clan-details'
app = require 'core/application'
AuthModal = require 'views/core/AuthModal'
CocoCollection = require 'collections/CocoCollection'
Campaign = require 'models/Campaign'
Clan = require 'models/Clan'
EarnedAchievement = require 'models/EarnedAchievement'
LevelSession = require 'models/LevelSession'
SubscribeModal = require 'views/core/SubscribeModal'
ThangType = require 'models/ThangType'
User = require 'models/User'

# TODO: Add message for clan not found
# TODO: Progress visual for premium levels?
# TODO: Add expanded level names toggle
# TODO: Only need campaign data if clan is private

module.exports = class ClanDetailsView extends RootView
  id: 'clan-details-view'
  template: template

  events:
    'change .expand-progress-checkbox': 'onExpandedProgressCheckbox'
    'click .delete-clan-btn': 'onDeleteClan'
    'click .edit-description-save-btn': 'onEditDescriptionSave'
    'click .edit-name-save-btn': 'onEditNameSave'
    'click .join-clan-btn': 'onJoinClan'
    'click .leave-clan-btn': 'onLeaveClan'
    'click .progress-level-cell': 'onClickLevel'
    'click .remove-member-btn': 'onRemoveMember'
    'mouseenter .progress-level-cell': 'onMouseEnterPoint'
    'mouseleave .progress-level-cell': 'onMouseLeavePoint'

  constructor: (options, @clanID) ->
    super options
    @initData()

  destroy: ->
    @stopListening?()

  initData: ->
    @showExpandedProgress = false
    @stats = {}

    @campaigns = new CocoCollection([], { url: "/db/campaign", model: Campaign, comparator:'_id' })
    @clan = new Clan _id: @clanID
    @members = new CocoCollection([], { url: "/db/clan/#{@clanID}/members", model: User, comparator: 'nameLower' })
    @memberAchievements = new CocoCollection([], { url: "/db/clan/#{@clanID}/member_achievements", model: EarnedAchievement, comparator:'_id' })
    # MemberSessions: only loads creatorName, levelName, codeLanguage, submittedCodeLanguage for each session
    @memberSessions = new CocoCollection([], { url: "/db/clan/#{@clanID}/member_sessions", model: LevelSession, comparator:'_id' })

    @listenTo me, 'sync', => @render?()
    @listenTo @campaigns, 'sync', @onCampaignSync
    @listenTo @clan, 'sync', @onClanSync
    @listenTo @members, 'sync', @onMembersSync
    @listenTo @memberAchievements, 'sync', @onMemberAchievementsSync
    @listenTo @memberSessions, 'sync', @onMemberSessionsSync

    @supermodel.loadModel @campaigns, 'clan', cache: false
    @supermodel.loadModel @clan, 'clan', cache: false
    @supermodel.loadCollection(@members, 'members', {cache: false})
    @supermodel.loadCollection(@memberAchievements, 'member_achievements', {cache: false})
    @supermodel.loadCollection(@memberSessions, 'member_sessions', {cache: false})

  getRenderData: ->
    context = super()
    context.campaignLevelProgressions = @campaignLevelProgressions ? []
    context.clan = @clan
    if application.isProduction()
      context.joinClanLink = "https://codecombat.com/clans/#{@clanID}"
    else
      context.joinClanLink = "http://localhost:3000/clans/#{@clanID}"
    context.owner = @owner
    context.memberAchievementsMap = @memberAchievementsMap
    context.memberLanguageMap = @memberLanguageMap
    context.memberLevelStateMap = @memberLevelMap ? {}
    context.memberMaxLevelCount = @memberMaxLevelCount
    context.members = @members?.models
    context.isOwner = @clan.get('ownerID') is me.id
    context.isMember = @clanID in (me.get('clans') ? [])
    context.stats = @stats

    # Find last campaign level for each user
    lastUserCampaignLevelMap = {}
    maxLastUserCampaignLevel = 0
    if @campaigns.loaded
      for campaign in @campaigns.models
        campaignID = campaign.id
        lastLevelIndex = 0
        for levelID, level of campaign.get('levels')
          levelSlug = level.slug
          for member in context.members
            if context.memberLevelStateMap[member.id]?[levelSlug]
              lastUserCampaignLevelMap[member.id] ?= {}
              lastUserCampaignLevelMap[member.id][campaignID] ?= {}
              lastUserCampaignLevelMap[member.id][campaignID] =
                levelSlug: levelSlug
                index: lastLevelIndex
              maxLastUserCampaignLevel = lastLevelIndex if lastLevelIndex > maxLastUserCampaignLevel
          lastLevelIndex++

    context.lastUserCampaignLevelMap = lastUserCampaignLevelMap
    context.showExpandedProgress = maxLastUserCampaignLevel <= 30 or @showExpandedProgress
    context

  afterRender: ->
    super()
    @updateHeroIcons()

  refreshData: ->
    me.fetch cache: false
    @members.fetch cache: false
    @memberAchievements.fetch cache: false
    @memberSessions.fetch cache: false

  updateHeroIcons: ->
    return unless @members?.models?
    for member in @members.models
      continue unless hero = member.get('heroConfig')?.thangType
      for slug, original of ThangType.heroes when original is hero
        @$el.find(".player-hero-icon[data-memberID=#{member.id}]").removeClass('.player-hero-icon').addClass('player-hero-icon ' + slug)

  onCampaignSync: ->
    return unless @campaigns.loaded
    @campaignLevelProgressions = []
    for campaign in @campaigns.models
      continue if campaign.get('slug') is 'auditions'
      campaignLevelProgression =
        ID: campaign.id
        slug: campaign.get('slug')
        name: campaign.get('name')
        levels: []
      # TODO: Where do these proper names come from?
      campaignLevelProgression.name = switch
        when campaignLevelProgression.slug is 'dungeon' then 'Kithgard Dungeon'
        when campaignLevelProgression.slug is 'forest' then 'Backwoods Forest'
        when campaignLevelProgression.slug is 'desert' then 'Sarven Desert'
        when campaignLevelProgression.slug is 'mountain' then 'Cloudrip Mountain'
        else campaignLevelProgression.name
      for levelID, level of campaign.get('levels')
        campaignLevelProgression.levels.push
          ID: levelID
          slug: level.slug
          name: level.name
      @campaignLevelProgressions.push campaignLevelProgression
    @render?()

  onClanSync: ->
    unless @owner?
      @owner = new User _id: @clan.get('ownerID')
      @listenTo @owner, 'sync', => @render?()
      @supermodel.loadModel @owner, 'owner', cache: false
    @render?()

  onMembersSync: ->
    @stats.averageLevel = Math.round(@members.reduce(((sum, member) -> sum + member.level()), 0) / @members.length)
    @render?()

  onMemberAchievementsSync: ->
    @memberAchievementsMap = {}
    for achievement in @memberAchievements.models
      user = achievement.get('user')
      @memberAchievementsMap[user] ?= []
      @memberAchievementsMap[user].push achievement
    for user of @memberAchievementsMap
      @memberAchievementsMap[user].sort (a, b) -> b.id.localeCompare(a.id)
    @stats.averageAchievements = Math.round(@memberAchievements.models.length / Object.keys(@memberAchievementsMap).length)
    @render?()

  onMemberSessionsSync: ->
    @memberLevelMap = {}
    memberSessions = {}
    for levelSession in @memberSessions.models
      continue if levelSession.isMultiplayer()
      user = levelSession.get('creator')
      levelSlug = levelSession.get('levelID')
      @memberLevelMap[user] ?= {}
      @memberLevelMap[user][levelSlug] ?= {}
      levelInfo =
        level: levelSession.get('levelName')
        levelID: levelSession.get('levelID')
        changed: new Date(levelSession.get('changed')).toLocaleString()
        playtime: levelSession.get('playtime')
        sessionID: levelSession.id
      @memberLevelMap[user][levelSlug].levelInfo = levelInfo
      if levelSession.get('state')?.complete is true
        @memberLevelMap[user][levelSlug].state = 'complete'
        memberSessions[user] ?= []
        memberSessions[user].push levelSession
      else
        @memberLevelMap[user][levelSlug].state = 'started'
    @memberMaxLevelCount = 0
    @memberLanguageMap = {}
    for user of memberSessions
      languageCounts = {}
      for levelSession in memberSessions[user]
        language = levelSession.get('codeLanguage') or levelSession.get('submittedCodeLanguage')
        languageCounts[language] = (languageCounts[language] or 0) + 1 if language
      @memberMaxLevelCount = memberSessions[user].length if @memberMaxLevelCount < memberSessions[user].length
      mostUsedCount = 0
      for language, count of languageCounts
        if count > mostUsedCount
          mostUsedCount = count
          @memberLanguageMap[user] = language
    @render?()

  onMouseEnterPoint: (e) ->
    $('.level-popup-container').hide()
    container = $(e.target).find('.level-popup-container').show()
    margin = 20
    offset = $(e.target).offset()
    scrollTop = $(e.target).offsetParent().scrollTop()
    height = container.outerHeight()
    container.css('left', offset.left + e.offsetX)
    container.css('top', offset.top + scrollTop - height - margin)

  onMouseLeavePoint: (e) ->
    $(e.target).find('.level-popup-container').hide()

  onClickLevel: (e) ->
    levelInfo = $(e.target).data 'level-info'
    return unless levelInfo?.levelID? and levelInfo?.sessionID?
    url = "/play/level/#{levelInfo.levelID}?session=#{levelInfo.sessionID}&observing=true"
    window.open url, '_blank'

  onDeleteClan: (e) ->
    return @openModalView(new AuthModal()) if me.isAnonymous()
    return unless window.confirm("Delete Clan?")
    options =
      url: "/db/clan/#{@clanID}"
      method: 'DELETE'
      error: (model, response, options) =>
        console.error 'Error joining clan', response
      success: (model, response, options) =>
        app.router.navigate "/clans"
        window.location.reload()
    @supermodel.addRequestResource( 'delete_clan', options).load()

  onEditDescriptionSave: (e) ->
    description = $('.edit-description-input').val()
    @clan.set 'description', description
    @clan.patch()
    $('#editDescriptionModal').modal('hide')

  onEditNameSave: (e) ->
    if name = $('.edit-name-input').val()
      @clan.set 'name', name
      @clan.patch()
    $('#editNameModal').modal('hide')

  onExpandedProgressCheckbox: (e) ->
    @showExpandedProgress = $('.expand-progress-checkbox').prop('checked')
    # TODO: why does render reset the checkbox to be unchecked?
    @render?()
    $('.expand-progress-checkbox').attr('checked', @showExpandedProgress)

  onJoinClan: (e) ->
    return @openModalView(new AuthModal()) if me.isAnonymous()
    return unless @clan.loaded
    if @clan.get('type') is 'private' and not me.isPremium()
      @openModalView new SubscribeModal()
      window.tracker?.trackEvent 'Show subscription modal', category: 'Subscription', label: 'join clan'
      return
    options =
      url: "/db/clan/#{@clanID}/join"
      method: 'PUT'
      error: (model, response, options) =>
        console.error 'Error joining clan', response
      success: (model, response, options) => @refreshData()
    @supermodel.addRequestResource( 'join_clan', options).load()

  onLeaveClan: (e) ->
    options =
      url: "/db/clan/#{@clanID}/leave"
      method: 'PUT'
      error: (model, response, options) =>
        console.error 'Error leaving clan', response
      success: (model, response, options) => @refreshData()
    @supermodel.addRequestResource( 'leave_clan', options).load()

  onRemoveMember: (e) ->
    return unless window.confirm("Remove Hero?")
    if memberID = $(e.target).data('id')
      options =
        url: "/db/clan/#{@clanID}/remove/#{memberID}"
        method: 'PUT'
        error: (model, response, options) =>
          console.error 'Error removing clan member', response
        success: (model, response, options) => @refreshData()
      @supermodel.addRequestResource( 'remove_member', options).load()
    else
      console.error "No member ID attached to remove button."