<template>
  <div class="main d-flex flex-row" style="position: relative;">
    <Spacer></Spacer>
    <div class="d-flex content py-2">
      <div :class="userlistStyle">
        <div class="card shadow-xs">
          <UIBoxHeader icon="users-cog" title="Users" />
          <UITableHeader
            :columns="[
              { id: 'role', title: 'Role', class: 'col-1' },
              { id: 'user', title: 'Username', class: 'col-3' },
              { id: 'country', title: 'Country', class: 'col-2' },
              { id: 'email', title: 'Email', class: 'col-3' }
            ]"
            @sortingChanged="sortBy"
          />
          <UITableBody
            :data="sortedUsers"
            maxHeight="47rem"
            :active="currentUser"
            v-slot="{ item: user }"
          >
            <div class="py-2 col-1" @click="selectUser(user.user)">
              <font-awesome-icon
                v-tooltip="roleLabel(user.role)"
                :icon="roleIcon(user.role)"
                class="fa-lg"
              ></font-awesome-icon>
            </div>
            <div class="py-2 col-3" @click="selectUser(user.user)">
              {{ user.user }}
            </div>
            <div class="py-2 col-2" @click="selectUser(user.user)">
              {{ user.country }}
            </div>
            <div class="py-2 col-3" @click="selectUser(user.user)">
              {{ user.email }}
            </div>
            <div class="py-2 col text-right">
              <button
                @click="sendTestMail(user.user)"
                class="btn btn-sm btn-dark mr-1"
                v-tooltip="sendMailLabel"
                v-if="user.email"
              >
                <font-awesome-icon icon="paper-plane"></font-awesome-icon>
              </button>
              <button
                @click="deleteUser(user.user)"
                class="btn btn-sm btn-dark"
                v-tooltip="deleteUserLabel"
              >
                <font-awesome-icon icon="trash" />
              </button>
            </div>
          </UITableBody>
          <div class="d-flex mx-auto align-items-center">
            <button
              @click="prevPage"
              v-if="this.currentPage !== 1"
              class="mr-2 btn btn-sm btn-light align-self-center"
            >
              <font-awesome-icon icon="angle-left"></font-awesome-icon>
            </button>
            {{ this.currentPage }} / {{ this.pages }}
            <button
              @click="nextPage"
              v-if="this.currentPage !== this.pages"
              class="ml-2 btn btn-sm btn-light align-self-center"
            >
              <font-awesome-icon icon="angle-right"></font-awesome-icon>
            </button>
          </div>
          <div class="mr-3 py-3 text-right">
            <button @click="addUser" class="btn btn-info addbutton shadow-sm">
              <translate>Add User</translate>
            </button>
          </div>
        </div>
      </div>
      <Userdetail v-if="isUserDetailsVisible"></Userdetail>
    </div>
  </div>
</template>

<style lang="sass" scoped>
.addbutton
  position: absolute
  bottom: $offset
  right: $offset

.content
  width: 100%

.userdetails
  width: 50%

.main
  height: 100%

.icon
  font-size: large

.userlist
  min-width: 520px
  height: 100%

.userlistsmall
  width: 100%

.userlistextended
  width: 100%

.table-body
  .row
    > div
      transition: background-color 0.3s, color 0.3s
    &.active
      > div
        background-color: $color-info
        color: #fff
        a
          color: #fff !important
</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 store from "@/store";
import { mapGetters, mapState } from "vuex";
import { displayError, displayInfo } from "@/lib/errors.js";
import { HTTP } from "@/lib/http";
import Vue from "vue";
import { VTooltip, VPopover, VClosePopover } from "v-tooltip";

Vue.directive("tooltip", VTooltip);
Vue.directive("close-popover", VClosePopover);
Vue.component("v-popover", VPopover);

export default {
  name: "userview",
  data() {
    return {
      sortColumn: "user",
      sortDirection: "ASC",
      pageSize: 15,
      currentPage: 1
    };
  },
  components: {
    Userdetail: () => import("./Userdetail"),
    Spacer: () => import("@/components/Spacer")
  },
  computed: {
    ...mapGetters("usermanagement", [
      "isUserDetailsVisible",
      "users",
      "currentUser"
    ]),
    ...mapState("application", ["showSidebar"]),
    sendMailLabel() {
      return this.$gettext("Send testmail");
    },
    deleteUserLabel() {
      return this.$gettext("Delete user");
    },
    sortedUsers() {
      const start = (this.currentPage - 1) * this.pageSize;
      return this.users
        .filter(u => u) // to clone the array and leave the original store value intact
        .sort((a, b) => {
          if (
            a[this.sortColumn].toLowerCase() < b[this.sortColumn].toLowerCase()
          )
            return this.sortDirection === "ASC" ? -1 : 1;
          if (
            a[this.sortColumn].toLowerCase() > b[this.sortColumn].toLowerCase()
          )
            return this.sortDirection === "ASC" ? 1 : -1;
          return 0;
        })
        .slice(start, start + this.pageSize);
    },
    pages() {
      return Math.ceil(this.users.length / this.pageSize);
    },
    tableStyle() {
      return {
        table: true,
        "table-hover": true,
        "table-sm": this.isUserDetailsVisible,
        fadeIn: true,
        animated: true
      };
    },
    userlistStyle() {
      return [
        "userlist mr-2",
        {
          userlistsmall: this.isUserDetailsVisible,
          userlistextended: !this.isUserDetailsVisible
        }
      ];
    }
  },
  methods: {
    sendTestMail(user) {
      HTTP.get("/testmail/" + user, {
        headers: {
          "X-Gemma-Auth": localStorage.getItem("token"),
          "Content-type": "text/xml; charset=UTF-8"
        }
      })
        .then(() => {
          displayInfo({
            message: this.$gettext("Testmail sent")
          });
        })
        .catch(error => {
          this.loginFailed = true;
          const { status, data } = error.response;
          displayError({
            title: this.$gettext("Backend Error"),
            message: `${status}: ${data.message || data}`
          });
        });
    },
    nextPage() {
      if (this.currentPage < this.pages) {
        this.currentPage += 1;
      }
    },
    prevPage() {
      if (this.currentPage > 0) {
        this.currentPage -= 1;
      }
    },
    sortBy(sorting) {
      this.sortColumn = sorting.sortColumn;
      this.sortDirection = sorting.sortDirection;
    },
    deleteUser(name) {
      this.$store.commit("application/popup", {
        icon: "trash",
        title: this.$gettext("Delete User"),
        content:
          this.$gettext(
            "Do you really want to delete the following user account:"
          ) +
          `<br>
        <b>${name}</b>`,
        confirm: {
          label: this.$gettext("Delete"),
          icon: "trash",
          callback: () => {
            this.$store
              .dispatch("usermanagement/deleteUser", { name })
              .then(() => {
                this.$store
                  .dispatch("usermanagement/loadUsers")
                  .catch(error => {
                    const { status, data } = error.response;
                    displayError({
                      title: this.$gettext("Backend Error"),
                      message: `${status}: ${data.message || data}`
                    });
                  });
              })
              .catch(error => {
                const { status, data } = error.response;
                displayError({
                  title: this.$gettext("Backend Error"),
                  message: `${status}: ${data.message || data}`
                });
              });
          }
        },
        cancel: {
          label: this.$gettext("Cancel"),
          icon: "times"
        }
      });
    },
    addUser() {
      this.$store.commit("usermanagement/clearCurrentUser");
      this.$store.commit("usermanagement/setUserDetailsVisible");
    },
    selectUser(name) {
      const user = this.$store.getters["usermanagement/getUserByName"](name);
      this.$store.commit("usermanagement/setCurrentUser", user);
    },
    roleIcon(role) {
      if (role === "sys_admin") return "star";
      if (role === "waterway_admin") return ["fab", "adn"];
      return "user";
    },
    roleLabel(role) {
      const labels = {
        sys_admin: this.$gettext("System-Administrator"),
        waterway_admin: this.$gettext("Waterway Admin"),
        waterway_user: this.$gettext("Waterway User")
      };
      return labels[role];
    }
  },
  beforeRouteEnter(to, from, next) {
    store
      .dispatch("usermanagement/loadUsers")
      .then(next)
      .catch(error => {
        const { status, data } = error.response;
        displayError({
          title: this.$gettext("Backend Error"),
          message: `${status}: ${data}`
        });
      });
  },
  beforeRouteLeave(to, from, next) {
    store.commit("usermanagement/clearCurrentUser");
    store.commit("usermanagement/setUserDetailsInvisible");
    next();
  }
};
</script>