<template>
  <nav>
    <button
      v-for="mode in allModes"
      v-on:click="() => setMode(mode.name)"
      v-bind:key="mode.name"
      v-bind:class="isActive(mode) ? 'active' : 'inactive'"
    >
      <Icon
        v-bind:type="mode.icon"
        v-bind:theme="isActive(mode) ? 'light' : 'dark'"
      />
    </button>
  </nav>
</template>

<script>
var serverUrl = 'http://127.0.0.1:5984'
import { mapState, mapGetters } from 'vuex'

import * as allModes from '@/experimental/modes'

export default {
  mounted() {
    window.addEventListener('online', this.handleConnection)
    window.addEventListener('offline', this.handleConnection)
  },
  computed: {
    ...mapState({
      mode: (state) => state.ui.mode,
    }),
    ...mapGetters({
      activeMode: 'ui/activeMode',
    }),
  },
  methods: {
    setMode(mode) {
      this.$store.commit('ui/setMode', mode)
      if (mode == 'exit') {
        this.removeLocal()
      }
      if (mode == 'addNode') {
        this.$store.dispatch('addNode')
      }
    },
    isActive(mode) {
      return this.mode === mode.name
    },

    removeLocal: function () {
      localStorage.removeItem('myNNClient')
      localStorage.removeItem('mylastMicrocosm')

      location.assign(
        process.env.VUE_APP_HTTP + '://' + process.env.VUE_APP_URL + '/'
      )
    },

    handleConnection: function () {
      var ref = this
      if (navigator.onLine) {
        this.isReachable(this.getServerUrl()).then(function (online) {
          if (online) {
            // handle online status
            console.log('online')
            location.reload()
          } else {
            console.log('no connectivity')
          }
        })
      } else {
        // handle offline status
        console.log('offline')
        ref.$emit('offlineTriggered')
      }
    },
    isReachable: function (url) {
      return fetch(url, { method: 'HEAD', mode: 'no-cors' })
        .then(function (resp) {
          return resp && (resp.ok || resp.type === 'opaque')
        })
        .catch(function (err) {
          console.warn('[conn test failure]:', err)
        })
    },
    getServerUrl: function () {
      return serverUrl || window.location.origin
    },
  },
  data() {
    return {
      allModes,
    }
  },
}
</script>

<style scoped>
nav {
  position: absolute;

  bottom: 1em;
  left: 1em;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
}
button {
  border: none;
  width: 50px;
  height: 50px;
  padding: 0;
  margin: 0;
  margin-top: 1em;
  background: white;
  border-radius: 25px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  outline: none;
  box-shadow: 0px 0px 0px 2px rgba(0, 0, 0, 0.1);
  margin-right: 10px;
}
button.active {
  background: rgb(30, 30, 30);
}

@media only screen and (max-width: 600px) {
  nav {
  }
}
</style>