<template lang='pug'>
  v-container(fluid, grid-list-lg)
    v-layout(row, wrap)
      v-flex(xs12)
        .admin-header
          img.animated.fadeInUp(src='/svg/icon-cloud-storage.svg', alt='Storage', style='width: 80px;')
          .admin-header-title
            .headline.primary--text.animated.fadeInLeft Storage
            .subheading.grey--text.animated.fadeInLeft.wait-p4s Set backup and sync targets for your content
          v-spacer
          v-btn.animated.fadeInDown.wait-p2s(outline, color='grey', @click='refresh', large)
            v-icon refresh
          v-btn.animated.fadeInDown(color='success', @click='save', depressed, large)
            v-icon(left) check
            span {{$t('common:actions.apply')}}

      v-flex(lg3, xs12)
        v-card.animated.fadeInUp
          v-toolbar(flat, color='primary', dark, dense)
            .subheading Targets
          v-list(two-line, dense).py-0
            template(v-for='(tgt, idx) in targets')
              v-list-tile(:key='tgt.key', @click='selectedTarget = tgt.key', :disabled='!tgt.isAvailable')
                v-list-tile-avatar
                  v-icon(color='grey', v-if='!tgt.isAvailable') indeterminate_check_box
                  v-icon(color='primary', v-else-if='tgt.isEnabled', v-ripple, @click='tgt.key !== `local` && (tgt.isEnabled = false)') check_box
                  v-icon(color='grey', v-else, v-ripple, @click='tgt.isEnabled = true') check_box_outline_blank
                v-list-tile-content
                  v-list-tile-title.body-2(:class='!tgt.isAvailable ? `grey--text` : (selectedTarget === tgt.key ? `primary--text` : ``)') {{ tgt.title }}
                  v-list-tile-sub-title.caption(:class='!tgt.isAvailable ? `grey--text text--lighten-1` : (selectedTarget === tgt.key ? `blue--text ` : ``)') {{ tgt.description }}
                v-list-tile-avatar(v-if='selectedTarget === tgt.key')
                  v-icon.animated.fadeInLeft(color='primary') arrow_forward_ios
              v-divider(v-if='idx < targets.length - 1')

        v-card.mt-3.animated.fadeInUp.wait-p2s
          v-toolbar(flat, :color='$vuetify.dark ? `grey darken-3-l5` : `grey darken-3`', dark, dense)
            .subheading Status
            v-spacer
            looping-rhombuses-spinner(
              :animation-duration='5000'
              :rhombus-size='10'
              color='#FFF'
            )
          v-list.py-0(two-line, dense)
            template(v-for='(tgt, n) in status')
              v-list-tile(:key='tgt.key')
                template(v-if='tgt.status === `pending`')
                  v-list-tile-avatar(color='purple')
                    v-icon(color='white') schedule
                  v-list-tile-content
                    v-list-tile-title.body-2 {{tgt.title}}
                    v-list-tile-sub-title.purple--text.caption {{tgt.status}}
                  v-list-tile-action
                    v-progress-circular(indeterminate, :size='20', :width='2', color='purple')
                template(v-else-if='tgt.status === `operational`')
                  v-list-tile-avatar(color='green')
                    v-icon(color='white') check_circle
                  v-list-tile-content
                    v-list-tile-title.body-2 {{tgt.title}}
                    v-list-tile-sub-title.green--text.caption Last synchronization {{tgt.lastAttempt | moment('from') }}
                template(v-else)
                  v-list-tile-avatar(color='red')
                    v-icon(color='white') highlight_off
                  v-list-tile-content
                    v-list-tile-title.body-2 {{tgt.title}}
                    v-list-tile-sub-title.red--text.caption Last attempt was {{tgt.lastAttempt | moment('from') }}
                  v-list-tile-action
                    v-menu
                      v-btn(slot='activator', icon)
                        v-icon(color='red') info
                      v-card(width='450')
                        v-toolbar(flat, color='red', dark, dense) Error Message
                        v-card-text {{tgt.message}}

              v-divider(v-if='n < status.length - 1')
            v-list-tile(v-if='status.length < 1')
              em You don't have any active storage target.

      v-flex(xs12, lg9)
        v-card.wiki-form.animated.fadeInUp.wait-p2s
          v-toolbar(color='primary', dense, flat, dark)
            .subheading {{target.title}}
          v-card-text
            v-form
              .targetlogo
                img(:src='target.logo', :alt='target.title')
              v-subheader.pl-0 {{target.title}}
              .caption {{target.description}}
              .caption: a(:href='target.website') {{target.website}}
              v-divider.mt-3
              v-subheader.pl-0 Target Configuration
              .body-1.ml-3(v-if='!target.config || target.config.length < 1') This storage target has no configuration options you can modify.
              template(v-else, v-for='cfg in target.config')
                v-select(
                  v-if='cfg.value.type === "string" && cfg.value.enum'
                  outline
                  background-color='grey lighten-2'
                  :items='cfg.value.enum'
                  :key='cfg.key'
                  :label='cfg.value.title'
                  v-model='cfg.value.value'
                  prepend-icon='settings_applications'
                  :hint='cfg.value.hint ? cfg.value.hint : ""'
                  persistent-hint
                  :class='cfg.value.hint ? "mb-2" : ""'
                )
                v-switch.mb-3(
                  v-else-if='cfg.value.type === "boolean"'
                  :key='cfg.key'
                  :label='cfg.value.title'
                  v-model='cfg.value.value'
                  color='primary'
                  prepend-icon='settings_applications'
                  :hint='cfg.value.hint ? cfg.value.hint : ""'
                  persistent-hint
                  )
                v-text-field(
                  v-else
                  outline
                  background-color='grey lighten-2'
                  :key='cfg.key'
                  :label='cfg.value.title'
                  v-model='cfg.value.value'
                  prepend-icon='settings_applications'
                  :hint='cfg.value.hint ? cfg.value.hint : ""'
                  persistent-hint
                  :class='cfg.value.hint ? "mb-2" : ""'
                  )
              v-divider.mt-3
              v-subheader.pl-0 Sync Direction
              .body-1.ml-3 Choose how content synchronization is handled for this storage target.
              .pr-3.pt-3
                v-radio-group.ml-3.py-0(v-model='target.mode')
                  v-radio(
                    label='Bi-directional'
                    color='primary'
                    value='sync'
                    :disabled='target.supportedModes.indexOf(`sync`) < 0'
                  )
                  v-radio(
                    label='Push to target'
                    color='primary'
                    value='push'
                    :disabled='target.supportedModes.indexOf(`push`) < 0'
                  )
                  v-radio(
                    label='Pull from target'
                    color='primary'
                    value='pull'
                    :disabled='target.supportedModes.indexOf(`pull`) < 0'
                  )
              .body-1.ml-3
                strong Bi-directional #[em.red--text.text--lighten-2(v-if='target.supportedModes.indexOf(`sync`) < 0') Unsupported]
                .pb-3 In bi-directional mode, content is first pulled from the storage target. Any newer content overwrites local content. New content since last sync is then pushed to the storage target, overwriting any content on target if present.
                strong Push to target #[em.red--text.text--lighten-2(v-if='target.supportedModes.indexOf(`push`) < 0') Unsupported]
                .pb-3 Content is always pushed to the storage target, overwriting any existing content. This is safest choice for backup scenarios.
                strong Pull from target #[em.red--text.text--lighten-2(v-if='target.supportedModes.indexOf(`pull`) < 0') Unsupported]
                .pb-3 Content is always pulled from the storage target, overwriting any local content which already exists. This choice is usually reserved for single-use content import. Caution with this option as any local content will always be overwritten!

              template(v-if='target.hasSchedule')
                v-divider.mt-3
                v-subheader.pl-0 Sync Schedule
                .body-1.ml-3 For performance reasons, this storage target synchronize changes on an interval-based schedule, instead of on every change. Define at which interval should the synchronization occur.
                .pa-3
                  duration-picker(v-model='target.syncInterval')
                  .caption.mt-3 Currently set to every #[strong {{getDefaultSchedule(target.syncInterval)}}].
                  .caption The default is every #[strong {{getDefaultSchedule(target.syncIntervalDefault)}}].

              template(v-if='target.actions && target.actions.length > 0')
                v-divider.mt-3
                v-subheader.pl-0 Actions
                v-container.pt-0(grid-list-xl, fluid)
                  v-layout(row, wrap, fill-height)
                    v-flex(xs12, lg6, xl4, v-for='act of target.actions', :key='act.handler')
                      v-card.radius-7.grey(flat, :class='$vuetify.dark ? `darken-3-d5` : `lighten-3`', height='100%')
                        v-card-text
                          .subheading(v-html='act.label')
                          .body-1.mt-2(v-html='act.hint')
                          v-btn.mx-0.mt-3(
                            @click='executeAction(target.key, act.handler)'
                            outline
                            :color='$vuetify.dark ? `blue` : `primary`'
                            :disabled='runningAction'
                            :loading='runningActionHandler === act.handler'
                            ) Run

</template>

<script>
import _ from 'lodash'
import moment from 'moment'
import momentDurationFormatSetup from 'moment-duration-format'

import DurationPicker from '../common/duration-picker.vue'
import { LoopingRhombusesSpinner } from 'epic-spinners'

import statusQuery from 'gql/admin/storage/storage-query-status.gql'
import targetsQuery from 'gql/admin/storage/storage-query-targets.gql'
import targetExecuteActionMutation from 'gql/admin/storage/storage-mutation-executeaction.gql'
import targetsSaveMutation from 'gql/admin/storage/storage-mutation-save-targets.gql'

momentDurationFormatSetup(moment)

export default {
  components: {
    DurationPicker,
    LoopingRhombusesSpinner
  },
  filters: {
    startCase(val) { return _.startCase(val) }
  },
  data() {
    return {
      runningAction: false,
      runningActionHandler: '',
      selectedTarget: '',
      target: {},
      targets: [],
      status: []
    }
  },
  computed: {
    activeTargets() {
      return _.filter(this.targets, 'isEnabled')
    }
  },
  watch: {
    selectedTarget(newValue, oldValue) {
      this.target = _.find(this.targets, ['key', newValue]) || {}
    },
    targets(newValue, oldValue) {
      this.selectedTarget = _.get(_.find(this.targets, ['isEnabled', true]), 'key', 'disk')
    }
  },
  methods: {
    async refresh() {
      await this.$apollo.queries.targets.refetch()
      this.$store.commit('showNotification', {
        message: 'List of storage targets has been refreshed.',
        style: 'success',
        icon: 'cached'
      })
    },
    async save() {
      this.$store.commit(`loadingStart`, 'admin-storage-savetargets')
      await this.$apollo.mutate({
        mutation: targetsSaveMutation,
        variables: {
          targets: this.targets.map(tgt => _.pick(tgt, [
            'isEnabled',
            'key',
            'config',
            'mode',
            'syncInterval'
          ])).map(str => ({...str, config: str.config.map(cfg => ({...cfg, value: JSON.stringify({ v: cfg.value.value })}))}))
        }
      })
      this.$store.commit('showNotification', {
        message: 'Storage configuration saved successfully.',
        style: 'success',
        icon: 'check'
      })
      this.$store.commit(`loadingStop`, 'admin-storage-savetargets')
    },
    getStatusColor(state) {
      switch (state) {
        case 'pending':
          return 'purple lighten-2'
        case 'operational':
          return 'green'
        case 'error':
          return 'red'
        default:
          return 'grey darken-2'
      }
    },
    getDefaultSchedule(val) {
      return moment.duration(val).format('y [years], M [months], d [days], h [hours], m [minutes]')
    },
    async executeAction(targetKey, handler) {
      this.$store.commit(`loadingStart`, 'admin-storage-executeaction')
      this.runningAction = true
      this.runningActionHandler = handler
      try {
        await this.$apollo.mutate({
          mutation: targetExecuteActionMutation,
          variables: {
            targetKey,
            handler
          }
        })
        this.$store.commit('showNotification', {
          message: 'Action completed.',
          style: 'success',
          icon: 'check'
        })
      } catch (err) {
        console.warn(err)
      }
      this.runningAction = false
      this.runningActionHandler = ''
      this.$store.commit(`loadingStop`, 'admin-storage-executeaction')
    }
  },
  apollo: {
    targets: {
      query: targetsQuery,
      fetchPolicy: 'network-only',
      update: (data) => _.cloneDeep(data.storage.targets).map(str => ({
        ...str,
        config: _.sortBy(str.config.map(cfg => ({
          ...cfg,
          value: JSON.parse(cfg.value)
        })), [t => t.value.order])
      })),
      watchLoading (isLoading) {
        this.$store.commit(`loading${isLoading ? 'Start' : 'Stop'}`, 'admin-storage-targets-refresh')
      }
    },
    status: {
      query: statusQuery,
      fetchPolicy: 'network-only',
      update: (data) => data.storage.status,
      watchLoading (isLoading) {
        this.$store.commit(`loading${isLoading ? 'Start' : 'Stop'}`, 'admin-storage-status-refresh')
      },
      pollInterval: 3000
    }
  }
}
</script>

<style lang='scss' scoped>

.targetlogo {
  width: 250px;
  height: 85px;
  float:right;
  display: flex;
  justify-content: flex-end;
  align-items: center;

  img {
    max-width: 100%;
    max-height: 50px;
  }
}

</style>
