<template>

    <div>

      <v-tabs grow slider-color="gary">

        <v-tab
          ripple
          @click="activeTab('existing')"
          v-bind:class="{ active: isActive }"
          id="tab"
          class="subheading"
        >Existing Class</v-tab>
        <v-tab
          ripple
          @click="activeTab('new')"
          v-bind:class="{ active: newActive }"
          id="tab1"
          User
          class="subheading"
        >Add New Class</v-tab>

        <!-- ****** EDIT  ClASS  ****** -->

        <v-tab-item>
          <v-snackbar
            :timeout="timeout"
            :top="y === 'top'"
            :right="x === 'right'"
            :vertical="mode === 'vertical'"
            v-model="snackbar"
            color="success"
          >{{ text }}</v-snackbar>
          <v-dialog v-model="dialog" max-width="500px">

            <v-flex xs12 sm12 class>
              <v-toolbar color="grey lighten-2">
                <v-spacer></v-spacer>
                <v-toolbar-title>
                  <h3>Edit Class</h3>
                </v-toolbar-title>
                <v-spacer></v-spacer>
              </v-toolbar>
              <v-card>

                <v-container fluid>
                  <v-layout justify-center>
                    <v-flex xs12 sm9>
                      <v-layout style="position:relative;">
                        <v-flex xs3 lg2 class="pt-4 subheading">
                          <label class="right">Class:</label>
                        </v-flex>
                        <v-flex xs9 class="ml-2">

                          <v-text-field

                            v-model="editedItem.classNum"

                            @keyup.enter="save"

                            :rules="nameRules"

                          ></v-text-field>

                        </v-flex>
                      </v-layout>
                      <v-card-actions>
                        <v-btn round dark @click.native="close">Cancel</v-btn>
                        <v-spacer></v-spacer>
                        <v-btn round dark @click="save">Save</v-btn>
                      </v-card-actions>
                    </v-flex>
                  </v-layout>
                </v-container>

              </v-card>
            </v-flex>

          </v-dialog>
  
          <!-- ****** PROFILE VIEW STUDENTS ******  -->
          <v-dialog v-model="dialog1" max-width="600px">

            <v-toolbar color="grey lighten-2">

              <v-spacer></v-spacer>

              <v-toolbar-title>

                <h3>Class</h3>

              </v-toolbar-title>

              <v-spacer></v-spacer>
              <v-icon @click="close1">close</v-icon>
            </v-toolbar>
            <v-card>

              <v-card-text>
                <v-container grid-list-md>
                  <v-layout wrap>
                    <v-flex>

                      <v-layout>

                        <v-flex xs6 sm6>

                          <h5 class="right my-1">
                            <b>Class Name:</b>
                          </h5>

                        </v-flex>

                        <v-flex sm6 xs6>

                          <h5 class="my-1">{{ editedItem.classNum }}</h5>
                        </v-flex>
                      </v-layout>
                    </v-flex>
                  </v-layout>
                </v-container>
              </v-card-text>
            </v-card>
          </v-dialog>
  
          <v-snackbar
            :timeout="timeout"
            :top="y === 'top'"
            :right="x === 'right'"
            :vertical="mode === 'vertical'"
            v-model="snackbar"
            color="success"
          >{{ text }}</v-snackbar>
  
          <!-- ****** EXISTING-USERS Classess Table ****** -->
          <v-data-table
            :headers="headers"

            :items="classList"

            :pagination.sync="pagination"
            :search="search"
          >
            <template slot="items" slot-scope="props">

              <td>{{ props.index + 1 }}</td>

              <td class="text-xs-center">{{ props.item.classNum}}</td>

              <td class="text-xs-center">
                <span>

                  <v-tooltip top>
                    <img
                      slot="activator"
                      style="cursor:pointer; width:25px; height:18px; "
                      class="mr5"
                      @click="profile(props.item)"
                      src="/static/icon/eye1.png"
                    />
                    <span>View</span>
                  </v-tooltip>
                  <v-tooltip top>
                    <img
                      slot="activator"
                      style="cursor:pointer; width:20px; height:18px; "
                      class="mr5"
                      @click="editItem(props.item)"
                      src="/static/icon/edit1.png"
                    />
                    <span>Edit</span>
                  </v-tooltip>
                  <v-tooltip top>
                    <img
                      slot="activator"
                      style="cursor:pointer; width:20px; height:20px; "
                      class="mr5"
                      @click="deleteItem(props.item)"
                      src="/static/icon/delete1.png"
                    />
                    <span>Delete</span>
                  </v-tooltip>

                </span>
              </td>
            </template>

            <v-alert

              slot="no-results"
              :value="true"
              color="error"
              icon="warning"
            >Your search for "{{ search }}" found no results.</v-alert>
          </v-data-table>
        </v-tab-item>
  
        <!-- ****** ADD multiple Classess ****** -->
        <v-tab-item>
          <v-container>
            <v-snackbar
              :timeout="timeout"
              :top="y === 'top'"
              :right="x === 'right'"
              :vertical="mode === 'vertical'"
              v-model="snackbar"
              color="success"
            >{{ text }}</v-snackbar>
            <v-flex xs12 sm8 offset-sm2 class="top">
              <v-card flat>
                <v-container fluid fill-height>
                  <v-layout align-center>

                    <v-flex xs12 class="mt-4">

                      <v-form ref="form" v-model="valid" lazy-validation>
                        <v-layout>
                          <v-flex xs4 class="pt-4 subheading">

                            <label class="right">Class :</label>

                          </v-flex>
                          <v-flex xs6 class="ml-3">

                            <v-text-field

                              v-model="addclasses.classNum"
                              placeholder="fill your class Name"

                              type="text"
                              :rules="nameRules"
                              required

                            ></v-text-field>

                          </v-flex>
                        </v-layout>
                        <v-layout>
                          <v-flex xs12 sm9 offset-sm2>
                            <v-card-actions>

                              <v-spacer></v-spacer>
                              <v-btn @click="submit" round dark :loading="loading">Add</v-btn>

                              <v-spacer></v-spacer>

                            </v-card-actions>
                          </v-flex>
                        </v-layout>
                      </v-form>
                    </v-flex>
                  </v-layout>
                </v-container>
              </v-card>
            </v-flex>
          </v-container>
        </v-tab-item>
      </v-tabs>

      <div class="loader" v-if="showLoader">
        <v-progress-circular indeterminate color="white"></v-progress-circular>
      </div>

    </div>

  </template>
  
  <script>
  import http from "@/Services/http.js";
  import Util from "@/util";
  
  export default {
    data: () => ({
      snackbar: false,
      y: "top",
      x: "right",
      mode: "",
      timeout: 3000,
      text: "",

      showLoader: false,

      loading: false,
      date: null,
      search: "",

      dialog: false,
      dialog1: false,
      valid: true,
      isActive: true,
      newActive: false,
      AddUsercredentials: {},
      pagination: {
        rowsPerPage: 15
      },

      nameRules: [v => !!v || " Class Name is required"],

      headers: [
        {
          text: "No",

          align: "left",

          sortable: false,
          value: "No"
        },

        { text: "Class No", value: "classNum", sortable: false, align: "center" },

        { text: "Action", value: "", sortable: false, align: "center" }
      ],

      classList: [],

      editedIndex: -1,
      editedItem: {
        classNum: ""
      },

      addclasses: {

        classNum: ""

      }

    }),

    methods: {
      getClassList() {

        this.showLoader = true;

        var token = this.$store.state.token;
        http()

          .get("/getClassesList")

          .then(response => {

            this.classList = response.data.data;

            this.showLoader = false;

          })

          .catch(error => {

            this.showLoader = false;

            if (error.response.status === 401) {
              this.$router.replace({ path: "/" });
              this.$store.dispatch("setToken", null);
              this.$store.dispatch("Id", null);
            }

          });
      },
      editItem(item) {

        this.editedIndex = this.classList.indexOf(item);

        this.editedItem = Object.assign({}, item);
        this.dialog = true;
      },
      profile(item) {

        this.editedIndex = this.classList.indexOf(item);

        this.editedItem = Object.assign({}, item);
        this.dialog1 = true;
      },
      deleteItem(item) {
        let deleteStudent = {
          classId: item._id
        };
        http()
          .delete(
            "/deleteClass",
            confirm("Are you sure you want to delete this?") && {
              params: deleteStudent
            }
          )
          .then(response => {
            // console.log("deleteUers",deleteStudent)
            if ((this.snackbar = true)) {

              this.text = "Successfully delete Existing Class";

            }
            this.getClassList();
          })
          .catch(error => {
            // console.log(error);
          });
      },
      activeTab(type) {
        switch (type) {
          case "existing":
            this.newActive = false;
            this.isActive = true;
            break;
  
          default:
            this.newActive = true;
            this.isActive = false;
            break;
        }
      },
      close() {
        this.dialog = false;
        setTimeout(() => {
          this.editedItem = Object.assign({}, this.defaultItem);
          this.editedIndex = -1;
        }, 300);
      },
      close1() {
        this.dialog1 = false;
      },
      submit() {
        if (this.$refs.form.validate()) {
          let addClass = {
            classNum: this.addclasses.classNum
          };
          console.log(addClass);

          this.loading = true;

          http()
            .post("/createClass", addClass)
            .then(response => {
              this.getClassList();
              if ((this.snackbar = true)) {

                this.text = "New class added successfully";

              }

              this.clear();

              this.loading = false;

            })
            .catch(error => {
              // console.log(error);

              this.loading = false;

              if ((this.snackbar = true)) {
                this.text = error.response.data.message;
              }
            });
        }
      },

      clear() {
        this.$refs.form.reset();
      },
      save() {
        let editClass = {
          classId: this.editedItem._id,
          classNum: this.editedItem.classNum
        };
        http()
          .put("/updateClass", editClass)
          .then(response => {

            if ((this.snackbar = true)) {

              this.text = "Successfully Edit Existing Class";

            }
            this.getClassList();
          })
          .catch(error => {
            // console.log(error);
          });
        this.close();

      }
    },
    mounted() {
      this.getClassList();

      // console.log("this.search",this.search)

    },

    created() {
      this.$root.$on("app:search", search => {
        this.search = search;
      });
    },
    beforeDestroy() {
      // dont forget to remove the listener
      this.$root.$off("app:search");

    }
  };
  </script>

  <style>

  .active {

    background-color: gray;

    color: white !important;
  }
  .activebtn {
    color: black !important;
  }

  </style>