<template>
  <div
    :class="{
      full: !showLogs,
      split: showLogs
    }"
  >
    <div v-if="details.summary.length > 0" class="d-flex flex-column">
      <div
        class="d-flex"
        v-for="(stretch, index) in details.summary"
        :key="index"
      >
        <UISpinnerButton
          @click="showDetailsFor(index)"
          :state="showDetails == index"
          :icons="['angle-right', 'angle-down']"
          classes="text-info"
        /><a @click="zoomToStretch(stretch)" class="text-info pointer">{{
          linkText(stretch)
        }}</a>
      </div>
      <div v-if="showDetails !== $options.NODETAILS">
        <div
          v-for="(entry, index) in Object.keys(selectedDetails)"
          :key="index"
          class="d-flex comparison row no-gutters px-4 text-left"
        >
          <span class="col-4">{{ entry }}</span>
          <span v-if="entry === 'countries'" class="col-4">{{
            listCountries(selectedDetails[entry])
          }}</span>
          <span v-else class="col-4">{{ selectedDetails[entry] }}</span>
        </div>
      </div>
    </div>
  </div>
</template>

<style lang="scss" scoped>
.comparison {
  width: 668px;
  border-top: dashed 1px #dee2e6;
}

.comparison:nth-child(odd) {
  background-color: #f8f9fa;
}

.split {
  max-height: 35vh;
}

.full {
  max-height: 70vh;
}
</style>

<script>
/* This is Free Software under GNU Affero General Public License v >= 3.0
 * without warranty, see README.md and license for details.
 *
 * SPDX-License-Identifier: AGPL-3.0-or-later
 * License-Filename: LICENSES/AGPL-3.0.txt
 *
 * Copyright (C) 2018 by via donau
 *   – Österreichische Wasserstraßen-Gesellschaft mbH
 * Software engineering by Intevation GmbH
 *
 * Author(s):
 * Thomas Junk <thomas.junk@intevation.de>
 */
import { displayError } from "@/lib/errors";
import { mapState, mapGetters } from "vuex";

const NODETAILS = -99;

export default {
  data() {
    return {
      showDetails: NODETAILS
    };
  },
  props: ["entry"],
  mounted() {
    this.$store.commit("imports/hideAdditionalInfo");
  },
  computed: {
    ...mapState("imports", ["showAdditional", "showLogs", "details"]),
    ...mapGetters("map", ["openLayersMap"]),
    selectedDetails() {
      if (this.showDetails === NODETAILS) return [];
      return this.details.summary[this.showDetails];
    }
  },
  methods: {
    listCountries(countries) {
      if (!countries) return "";
      return countries.join(", ");
    },
    showDetailsFor(index) {
      if (index === this.showDetails) {
        this.showDetails = NODETAILS;
        return;
      }
      this.showDetails = index;
    },
    linkText(stretch) {
      const name = stretch.objnam;
      const { countries } = stretch;
      const countryNames = !countries
        ? ""
        : `(${this.listCountries(countries)})`;
      return `${name} ${countryNames}`;
    },
    zoomToStretch(stretch) {
      const { name } = stretch;
      this.openLayersMap()
        .getLayer("STRETCHES")
        .setVisible(true);
      this.$store
        .dispatch("imports/loadStretch", name)
        .then(response => {
          if (response.data.features.length < 1)
            throw new Error("no feaures found for: " + name);
          this.$store.commit(
            "imports/selectedStretchId",
            response.data.features[0].id
          );
          this.$store.dispatch("map/moveToFeauture", {
            feature: response.data.features[0],
            zoom: 17,
            preventZoomOut: true
          });
        })
        .catch(error => {
          let message = "Backend not reachable";
          if (error.response) {
            const { status, data } = error.response;
            message = `${status}: ${data.message || data}`;
          }
          displayError({
            title: this.$gettext("Backend Error"),
            message: message
          });
        });
    }
  },
  NODETAILS: NODETAILS
};
</script>