<template>
  <div
    :class="{
      diffs: true,
      full: !showLogs,
      split: showLogs
    }"
  >
    <virtual-list
      :size="scrollistConfig.size"
      :remain="scrollistConfig.remain"
      :bench="scrollistConfig.bench"
    >
      <Item
        class="d-flex flex-row px-2 border-top"
        v-for="(item, index) in details.summary"
        @openDiff="toggleDiff"
        :key="index"
        :line="item"
        :index="index"
        :showDiff="showDiff"
      />
    </virtual-list>
  </div>
</template>

<style lang="sass" scoped>
.diffs
  width: 100%
  overflow-y: auto
  > div
    border-top: dashed 1px #dee2e6
    &:first-child
      border-top: none
    .compare-table
      position: relative
      overflow: hidden
      &::after
        content: ''
        position: absolute
        top: 0
        right: -5px
        bottom: 0
        left: -5px
        box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.4)
      > div
        font-size: 0.7rem
        &: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 { mapState } from "vuex";
import virtualList from "vue-virtual-scroll-list";

export default {
  data() {
    return {
      showDiff: 0 // open first item by default
    };
  },
  components: {
    "virtual-list": virtualList,
    Item: () => import("./AGMLogItem")
  },
  computed: {
    ...mapState("imports", ["showLogs", "details"]),
    scrollistConfig() {
      const smallLayout = {
        size: 20,
        remain: 10,
        bench: 12
      };
      const largeLayout = {
        size: 22,
        remain: 12,
        bench: 14
      };
      if (this.showAdditional) return smallLayout;
      return largeLayout;
    }
  },
  methods: {
    toggleDiff(number) {
      if (this.showDiff !== number) {
        this.showDiff = number;
      } else {
        this.showDiff = false;
      }
    }
  }
};
</script>