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<template>
  <b-container fluid>
    <div v-if="!domain" class="mt-5 text-center">
      <b-spinner label="Spinning" />
      <p>{{ $t('wait.loading') }}</p>
    </div>
    <b-row v-else style="min-height: inherit">
      <b-col sm="4" md="3" class="bg-light pt-2 pb-2 sticky-top d-flex flex-column justify-content-between" style="height: 100vh; overflow-y: auto; z-index: 5">
        <b-row>
          <b-col class="pr-0" sm="auto">
            <router-link to="/domains/" class="btn font-weight-bolder">
              <b-icon icon="chevron-up" />
            </router-link>
          </b-col>
          <b-col class="pl-0">
            <b-form-select :value="domain.domain" :options="sortedDomains" value-field="domain" text-field="domain" @input="changeDomain($event)" />
          </b-col>
        </b-row>

        <b-form class="mt-3">
          <label class="font-weight-bolder" for="zhistory">{{ $t('domains.history') }}:</label>
          <b-form-select id="zhistory" v-model="selectedHistory" :options="domain.zone_history" value-field="id" text-field="last_modified" />
        </b-form>

        <b-button-group class="mt-3 w-100">
          <b-button size="sm" variant="outline-info" :title="$t('domains.actions.view')" @click="viewZone">
            <b-icon icon="list-ul" aria-hidden="true" /><br>
            {{ $t('domains.actions.view') }}
          </b-button>
          <b-button v-if="domain.zone_history.length && selectedHistory === domain.zone_history[0].id" size="sm" variant="success" :title="$t('domains.actions.propagate')" @click="showDiff">
            <b-icon icon="cloud-upload" aria-hidden="true" /><br>
            {{ $t('domains.actions.propagate') }}
          </b-button>
          <b-button v-else size="sm" variant="warning" :title="$t('domains.actions.rollback')" @click="showDiff">
            <b-icon icon="cloud-upload" aria-hidden="true" /><br>
            {{ $t('domains.actions.rollback') }}
          </b-button>
        </b-button-group>

        <hr>

        <b-form class="mt-3">
          <label class="font-weight-bolder">{{ $t('domains.views.as') }}</label>
          <b-button-group class="w-100">
            <b-button :variant="displayFormat === 'grid' ? 'secondary' : 'outline-secondary'" :title="$t('domains.views.grid.title')" @click="toogleGridView()">
              <b-icon icon="grid-fill" aria-hidden="true" /><br>
              {{ $t('domains.views.grid.label') }}
            </b-button>
            <b-button :variant="displayFormat === 'list' ? 'secondary' : 'outline-secondary'" :title="$t('domains.views.list.title')" @click="toogleListView()">
              <b-icon icon="list-ul" aria-hidden="true" /><br>
              {{ $t('domains.views.list.label') }}
            </b-button>
            <b-button :variant="displayFormat === 'records' ? 'secondary' : 'outline-secondary'" :title="$t('domains.views.records.title')" @click="toogleRecordsView()">
              <b-icon icon="menu-button-wide-fill" aria-hidden="true" /><br>
              {{ $t('domains.views.records.label') }}
            </b-button>
          </b-button-group>
        </b-form>

        <hr>

        <b-button class="w-100" type="button" variant="outline-danger" @click="detachDomain()">
          <b-icon icon="trash-fill" /> {{ $t('domains.stop') }}
        </b-button>

        <b-form v-if="sources_getAll && sources_getAll[domain.id_source]" class="mt-5">
          <label class="font-weight-bolder">{{ $t('domains.view.source') }}:</label>
          <div class="pr-2 pl-2">
            <b-button class="p-3 w-100 text-left" type="button" variant="outline-info" @click="goToSource()">
              <div class="d-inline-block text-center" style="width: 50px;">
                <img :src="'/api/providers/_specs/' + providers_getAll[domain.id_provider]._srctype + '/icon.png'" :alt="providers_getAll[domain.id_provider]._srctype" :title="providers_getAll[domain.id_provider]._srctype" style="max-width: 100%; max-height: 2.5em; margin: -.6em .4em -.6em -.6em">
              </div>
              {{ sources_getAll[domain.id_source]._comment }}
            </b-button>
          </div>
        </b-form>
      </b-col>

      <b-col sm="8" md="9" class="mb-5">
        <div v-if="importInProgress" class="mt-4 text-center">
          <b-spinner :label="$t('common.spinning')" />
          <p>{{ $t('wait.importing') }}</p>
        </div>
        <h-subdomain-list v-else-if="selectedHistory && domain.zone_history.length > 0" :display-format="displayFormat" :domain="domain" :zone-id="selectedHistory" />
      </b-col>
    </b-row>

    <b-modal id="modal-viewZone" :title="$t('domains.view.title')" size="lg" scrollable ok-only :ok-disabled="zoneContent === null">
      <div v-if="zoneContent === null" class="my-2 text-center">
        <b-spinner label="Spinning" />
        <p>{{ $t('wait.formating') }}</p>
      </div>
      <pre v-else style="overflow: initial">{{ zoneContent }}</pre>
    </b-modal>

    <b-modal id="modal-applyZone" size="lg" scrollable @ok.prevent="applyDiff()">
      <template #modal-title>
        <i18n path="domains.view.description" tag="span">
          <span class="text-monospace">{{ domain.domain }}</span>
        </i18n>
      </template>
      <template #modal-footer="{ ok, cancel }">
        <div v-if="zoneDiffAdd || zoneDiffDel">
          <span v-if="zoneDiffAdd" class="text-success">
            {{ $tc('domains.apply.additions', (zoneDiffAdd || []).length) }}
          </span>
          &ndash;
          <span class="text-danger">
            {{ $tc('domains.apply.deletions', (zoneDiffDel || []).length) }}
          </span>
        </div>
        <b-button variant="secondary" @click="cancel()">
          {{ $t('common.cancel') }}
        </b-button>
        <b-button variant="success" :disabled="propagationInProgress || (zoneDiffAdd === null && zoneDiffDel === null)" @click="ok()">
          <b-spinner v-if="propagationInProgress" label="Spinning" />
          {{ $t('domains.apply.button') }}
        </b-button>
      </template>
      <div v-if="zoneDiffAdd === null && zoneDiffDel === null" class="my-2 text-center">
        <b-spinner label="Spinning" />
        <p>{{ $t('wait.exporting') }}</p>
      </div>
      <div v-for="(line, n) in zoneDiffAdd" :key="'a' + n" class="text-monospace text-success" style="white-space: nowrap">
        +{{ line }}
      </div>
      <div v-for="(line, n) in zoneDiffDel" :key="'d' + n" class="text-monospace text-danger" style="white-space: nowrap">
        -{{ line }}
      </div>
    </b-modal>
  </b-container>
</template>

<script>
import { mapGetters } from 'vuex'
import DomainsApi from '@/api/domains'
import ZonesApi from '@/api/zones'

export default {
  components: {
    hSubdomainList: () => import('@/components/hSubdomainList')
  },

  data: function () {
    return {
      displayFormat: 'grid',
      importInProgress: false,
      propagationInProgress: false,
      selectedHistory: null,
      zoneContent: null,
      zoneDiffAdd: null,
      zoneDiffDel: null
    }
  },

  computed: {
    domain () {
      return this.domains_getDetailed[this.$route.params.domain]
    },

    ...mapGetters('domains', ['domains_getDetailed', 'sortedDomains']),
    ...mapGetters('sources', ['sources_getAll'])
  },

  watch: {
    domain: function () {
      this.pullDomain()
      if (!this.selectedHistory && this.domain.zone_history.length !== 0) {
        this.selectedHistory = this.domain.zone_history[0].id
      }
    }
  },

  created () {
    if (localStorage && localStorage.getItem('displayFormat')) {
      this.displayFormat = localStorage.getItem('displayFormat')
    }
    this.$store.dispatch('domains/getAllMyDomains')
    this.$store.dispatch('sources/getAllMySources')
    this.updateDomainInfo()
  },

  methods: {
    pullDomain () {
      if (this.domain.zone_history === null || this.domain.zone_history.length === 0) {
        this.importZone()
      } else {
        this.selectedHistory = this.domain.zone_history[0].id
      }
    },

    importZone () {
      this.importInProgress = true
      ZonesApi.importZone(this.domain.domain)
        .then(
          (response) => {
            this.importInProgress = false
            this.updateDomainInfo()
            this.selectedHistory = response.data.id
          },
          (error) => {
            this.importInProgress = false
            this.$root.$bvToast.toast(
              error.response.data.errmsg, {
                title: this.$t('errors.occurs', { when: 'importing the zone' }),
                autoHideDelay: 5000,
                variant: 'danger',
                toaster: 'b-toaster-content-right'
              }
            )
            this.$router.push('/domains/')
          }
        )
    },

    changeDomain (newDomain) {
      this.$router.push('/domains/' + encodeURIComponent(newDomain))
      this.updateDomainInfo()
    },

    goToSource () {
      this.$router.push('/sources/' + encodeURIComponent(this.domain.id_source))
    },

    detachDomain () {
      this.$bvModal.msgBoxConfirm(this.$t('domains.alert.remove', { domain: this.domain.domain }), {
        title: this.$t('domains.removal'),
        size: 'lg',
        okVariant: 'danger',
        okTitle: this.$t('domains.discard'),
        cancelVariant: 'outline-secondary',
        cancelTitle: this.$t('domains.view.cancel-title')
      })
        .then(value => {
          if (value) {
            DomainsApi.detachDomain(this.domain.domain)
              .then(
                () => {
                  this.$store.dispatch('domains/dropDomain', this.domain.domain)
                  this.$router.push('/domains/')
                }
              )
          }
        })
    },

    toogleGridView () {
      this.displayFormat = 'grid'
      if (localStorage) {
        localStorage.setItem('displayFormat', 'grid')
      }
    },

    toogleListView () {
      this.displayFormat = 'list'
      if (localStorage) {
        localStorage.setItem('displayFormat', 'list')
      }
    },

    toogleRecordsView () {
      this.displayFormat = 'records'
      if (localStorage) {
        localStorage.setItem('displayFormat', 'records')
      }
    },

    showDiff () {
      this.zoneDiffAdd = null
      this.zoneDiffDel = null
      this.$bvModal.show('modal-applyZone')
      ZonesApi.diffZone(this.domain.domain, '@', this.selectedHistory)
        .then(
          (response) => {
            if (response.data.toAdd == null && response.data.toDel == null) {
              this.$bvModal.hide('modal-applyZone')
              this.$bvModal.msgBoxOk(this.$t('domains.apply.nochange'))
            } else {
              this.zoneDiffAdd = response.data.toAdd
              this.zoneDiffDel = response.data.toDel
            }
          },
          (error) => {
            this.$bvModal.hide('modal-applyZone')
            this.$bvToast.toast(
              error.response.data.errmsg, {
                title: this.$t('errors.occurs', { when: 'exporting the zone' }),
                autoHideDelay: 5000,
                variant: 'danger',
                toaster: 'b-toaster-content-right'
              }
            )
          })
    },

    applyDiff () {
      this.propagationInProgress = true
      ZonesApi.applyZone(this.domain.domain, this.selectedHistory)
        .then(
          (response) => {
            this.$bvModal.hide('modal-applyZone')
            this.propagationInProgress = false
            this.$bvToast.toast(
              this.$t('domains.apply.done.description', { zone: this.domain.domain }), {
                title: this.$t('domains.apply.done.title'),
                autoHideDelay: 5000,
                variant: 'success',
                toaster: 'b-toaster-content-right'
              }
            )
          },
          (error) => {
            this.propagationInProgress = false
            this.$bvToast.toast(
              error.response.data.errmsg, {
                title: this.$t('errors.occurs', { when: 'applying the zone' }),
                autoHideDelay: 5000,
                variant: 'danger',
                toaster: 'b-toaster-content-right'
              }
            )
          })
    },

    viewZone () {
      this.zoneContent = null
      this.$bvModal.show('modal-viewZone')
      ZonesApi.viewZone(this.domain.domain, this.selectedHistory)
        .then(
          (response) => {
            this.zoneContent = response.data
          },
          (error) => {
            this.$bvModal.hide('modal-viewZone')
            this.$bvToast.toast(
              error.response.data.errmsg, {
                title: this.$t('errors.occurs', { when: 'exporting the zone' }),
                autoHideDelay: 5000,
                variant: 'danger',
                toaster: 'b-toaster-content-right'
              }
            )
          })
    },

    updateDomainInfo () {
      this.$store.dispatch('domains/getDomainDetails', this.$route.params.domain)
    }
  }
}
</script>
