import axios from 'axios'
import moment from 'moment'

export default {
  namespaced: true,
  state: {
    currentLanguage: 'en_US',
    selectedLanguage: false,
    queueFocused: null,
    momentLocale: 'en',
    lastDate: new Date(),
    maxMessages: 100,
    messageDisplayDuration: 5 * 1000,
    supportedExtensions: ['flac', 'ogg', 'mp3', 'opus', 'aac', 'm4a', 'aiff', 'aif'],
    messages: [],
    theme: 'system',
    window: {
      height: 0,
      width: 0
    },
    notifications: {
      inbox: 0,
      pendingReviewEdits: 0,
      pendingReviewReports: 0,
      pendingReviewRequests: 0
    },
    websocketEventsHandlers: {
      'inbox.item_added': {},
      'import.status_updated': {},
      'mutation.created': {},
      'mutation.updated': {},
      'report.created': {},
      'user_request.created': {},
      Listen: {}
    },
    pageTitle: null,
    routePreferences: {
      'library.albums.browse': {
        paginateBy: 25,
        orderingDirection: '-',
        ordering: 'creation_date'
      },
      'library.artists.browse': {
        paginateBy: 30,
        orderingDirection: '-',
        ordering: 'creation_date'
      },
      'library.podcasts.browse': {
        paginateBy: 30,
        orderingDirection: '-',
        ordering: 'creation_date'
      },
      'library.radios.browse': {
        paginateBy: 12,
        orderingDirection: '-',
        ordering: 'creation_date'
      },
      'library.playlists.browse': {
        paginateBy: 25,
        orderingDirection: '-',
        ordering: 'creation_date'
      },
      'library.albums.me': {
        paginateBy: 25,
        orderingDirection: '-',
        ordering: 'creation_date'
      },
      'library.artists.me': {
        paginateBy: 30,
        orderingDirection: '-',
        ordering: 'creation_date'
      },
      'library.radios.me': {
        paginateBy: 12,
        orderingDirection: '-',
        ordering: 'creation_date'
      },
      'library.playlists.me': {
        paginateBy: 25,
        orderingDirection: '-',
        ordering: 'creation_date'
      },
      'content.libraries.files': {
        paginateBy: 50,
        orderingDirection: '-',
        ordering: 'creation_date'
      },
      'library.detail.upload': {
        paginateBy: 50,
        orderingDirection: '-',
        ordering: 'creation_date'
      },
      'library.detail.edit': {
        paginateBy: 50,
        orderingDirection: '-',
        ordering: 'creation_date'
      },
      'library.detail': {
        paginateBy: 50,
        orderingDirection: '-',
        ordering: 'creation_date'
      },
      favorites: {
        paginateBy: 50,
        orderingDirection: '-',
        ordering: 'creation_date'
      },
      'manage.channels': {
        paginateBy: 50,
        orderingDirection: '-',
        ordering: 'creation_date'
      },
      'manage.library.tags': {
        paginateBy: 50,
        orderingDirection: '-',
        ordering: 'creation_date'
      },
      'manage.library.uploads': {
        paginateBy: 50,
        orderingDirection: '-',
        ordering: 'creation_date'
      },
      'manage.library.libraries': {
        paginateBy: 50,
        orderingDirection: '-',
        ordering: 'creation_date'
      },
      'manage.library.tracks': {
        paginateBy: 50,
        orderingDirection: '-',
        ordering: 'creation_date'
      },
      'manage.library.albums': {
        paginateBy: 50,
        orderingDirection: '-',
        ordering: 'creation_date'
      },
      'manage.library.artists': {
        paginateBy: 50,
        orderingDirection: '-',
        ordering: 'creation_date'
      },
      'manage.library.edits': {
        paginateBy: 25,
        orderingDirection: '-',
        ordering: 'creation_date'
      },
      'manage.users.users.list': {
        paginateBy: 50,
        orderingDirection: '-',
        ordering: 'creation_date'
      },
      'manage.users.invitations.list': {
        paginateBy: 50,
        orderingDirection: '-',
        ordering: 'creation_date'
      },
      'manage.moderation.accounts.list': {
        paginateBy: 50,
        orderingDirection: '-',
        ordering: 'creation_date'
      },
      'manage.moderation.domains.list': {
        paginateBy: 50,
        orderingDirection: '-',
        ordering: 'creation_date'
      },
      'manage.moderation.requests.list': {
        paginateBy: 25,
        orderingDirection: '-',
        ordering: 'creation_date'
      },
      'manage.moderation.reports.list': {
        paginateBy: 25,
        orderingDirection: '-',
        ordering: 'creation_date'
      }
    },
    serviceWorker: {
      refreshing: false,
      registration: null,
      updateAvailable: false
    }
  },
  getters: {
    showInstanceSupportMessage: (state, getters, rootState) => {
      if (!rootState.auth.profile) {
        return false
      }
      if (!rootState.instance.settings.instance.support_message.value) {
        return false
      }
      const displayDate = rootState.auth.profile.instance_support_message_display_date
      if (!displayDate) {
        return false
      }
      return moment(displayDate) < moment(state.lastDate)
    },
    showFunkwhaleSupportMessage: (state, getters, rootState) => {
      if (!rootState.auth.profile) {
        return false
      }
      if (!rootState.instance.settings.instance.funkwhale_support_message_enabled.value) {
        return false
      }
      const displayDate = rootState.auth.profile.funkwhale_support_message_display_date
      if (!displayDate) {
        return false
      }
      return moment(displayDate) < moment(state.lastDate)
    },
    additionalNotifications: (state, getters) => {
      let count = 0
      if (getters.showInstanceSupportMessage) {
        count += 1
      }
      if (getters.showFunkwhaleSupportMessage) {
        count += 1
      }
      return count
    },

    windowSize: (state, getters) => {
      // IMPORTANT: if you modify these breakpoints, also modify the values in
      // style/vendor/_media.scss
      const width = state.window.width
      const breakpoints = [
        { name: 'widedesktop', width: 1200 },
        { name: 'desktop', width: 1024 },
        { name: 'tablet', width: 768 },
        { name: 'phone', width: 320 }
      ]
      for (let index = 0; index < breakpoints.length; index++) {
        const element = breakpoints[index]
        if (width >= element.width) {
          return element.name
        }
      }
      return 'phone'
    },
    layoutVersion: (state, getters) => {
      if (['tablet', 'phone'].indexOf(getters.windowSize) > -1) {
        return 'small'
      } else {
        return 'large'
      }
    }
  },
  mutations: {
    addWebsocketEventHandler: (state, { eventName, id, handler }) => {
      state.websocketEventsHandlers[eventName][id] = handler
    },
    removeWebsocketEventHandler: (state, { eventName, id }) => {
      delete state.websocketEventsHandlers[eventName][id]
    },
    currentLanguage: (state, value) => {
      state.currentLanguage = value
      state.selectedLanguage = true
    },
    momentLocale: (state, value) => {
      state.momentLocale = value
      moment.locale(value)
    },
    computeLastDate: (state) => {
      state.lastDate = new Date()
    },
    queueFocused: (state, value) => {
      state.queueFocused = value
    },

    theme: (state, value) => {
      state.theme = value
    },
    addMessage (state, message) {
      const finalMessage = {
        displayTime: state.messageDisplayDuration,
        key: String(new Date()),
        ...message
      }
      const key = finalMessage.key
      state.messages = state.messages.filter((m) => {
        return m.key !== key
      })
      state.messages.push(finalMessage)
      if (state.messages.length > state.maxMessages) {
        state.messages.shift()
      }
    },
    removeMessage (state, key) {
      state.messages = state.messages.filter((m) => {
        return m.key !== key
      })
    },
    notifications (state, { type, count }) {
      state.notifications[type] = count
    },
    incrementNotifications (state, { type, count, value }) {
      if (value !== undefined) {
        state.notifications[type] = Math.max(0, value)
      } else {
        state.notifications[type] = Math.max(0, state.notifications[type] + count)
      }
    },
    pageTitle: (state, value) => {
      state.pageTitle = value
    },
    paginateBy: (state, { route, value }) => {
      state.routePreferences[route].paginateBy = value
    },
    ordering: (state, { route, value }) => {
      state.routePreferences[route].ordering = value
    },
    orderingDirection: (state, { route, value }) => {
      state.routePreferences[route].orderingDirection = value
    },

    serviceWorker: (state, value) => {
      state.serviceWorker = { ...state.serviceWorker, ...value }
    },
    window: (state, value) => {
      state.window = value
    }
  },
  actions: {
    fetchUnreadNotifications ({ commit }, payload) {
      axios.get('federation/inbox/', { params: { is_read: false, page_size: 1 } }).then((response) => {
        commit('notifications', { type: 'inbox', count: response.data.count })
      })
    },
    fetchPendingReviewEdits ({ commit, rootState }, payload) {
      axios.get('mutations/', { params: { is_approved: 'null', page_size: 1 } }).then((response) => {
        commit('notifications', { type: 'pendingReviewEdits', count: response.data.count })
      })
    },
    fetchPendingReviewReports ({ commit, rootState }, payload) {
      axios.get('manage/moderation/reports/', { params: { is_handled: 'false', page_size: 1 } }).then((response) => {
        commit('notifications', { type: 'pendingReviewReports', count: response.data.count })
      })
    },
    fetchPendingReviewRequests ({ commit, rootState }, payload) {
      axios.get('manage/moderation/requests/', { params: { status: 'pending', page_size: 1 } }).then((response) => {
        commit('notifications', { type: 'pendingReviewRequests', count: response.data.count })
      })
    },

    async currentLanguage ({ state, commit, rootState }, value) {
      commit('currentLanguage', value)
      if (rootState.auth.authenticated) {
        await axios.post('users/settings', { language: value })
      }
    },

    async theme ({ state, commit, rootState }, value) {
      commit('theme', value)
      if (rootState.auth.authenticated) {
        await axios.post('users/settings', { theme: value })
      }
    },

    async initSettings ({ commit }, settings) {
      settings = settings || {}
      if (settings.language) {
        commit('currentLanguage', settings.language)
      }
      if (settings.theme) {
        commit('theme', settings.theme)
      }
    },
    websocketEvent ({ state }, event) {
      const handlers = state.websocketEventsHandlers[event.type]
      console.log('Dispatching websocket event', event, handlers)
      if (!handlers) {
        return
      }
      const names = Object.keys(handlers)
      names.forEach((k) => {
        const handler = handlers[k]
        handler(event)
      })
    }
  }
}