<template>
    <v-app id="pages-dasboard">

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

        <v-tab
          ripple
          @click="activeTab('existing')"
          v-bind:class="{ active: isActive }"
          id="tab"
          class="subheading"

        >Existing Subjects</v-tab>

        <v-tab
          ripple
          @click="activeTab('new')"
          v-bind:class="{ active: newActive }"
          id="tab1"
          User
          class="subheading"

        >Add New Subject</v-tab>

        <!-- ****** EDIT  Subject ****** -->

  
        <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="600px">
            <v-flex xs12 sm12 class>

              <v-toolbar color="v-toolbar">

                <v-spacer></v-spacer>

                <v-toolbar-title>
                  <h3>Edit Subject</h3>
                </v-toolbar-title>

                <v-spacer></v-spacer>
              </v-toolbar>
              <v-card flat>

                <v-container fluid>

                  <v-form ref="formEditSubject" v-model="validEditSubject" 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-select
                          :items="classList"
                          label="Select Class"
                          v-model="addSubject.selectName"
                          item-text="classNum"
                          item-value="_id"
                          name="Select Class"
                          :rules="nameEditSubjectRules"
                          required
                        ></v-select>
                      </v-flex>
                    </v-layout>
                    <v-layout>
                      <v-flex xs4 class="pt-4 subheading">
                        <label class="right">Subject:</label>
                      </v-flex>
                      <v-flex xs6 class="ml-3">
                        <v-text-field
                          placeholder="fill your Subject"
                          v-model="editedItem.subjectName"

                          :rules="subjectEditNameRules"

                          type="text"
                          name="email"
                          required
                        ></v-text-field>
                      </v-flex>
                    </v-layout>
                    <v-flex xs12 sm9 offset-sm2>
                      <v-card-actions>
                        <v-btn round dark @click.native="close">Cancel</v-btn>
                        <v-spacer></v-spacer>
                        <v-btn round dark @click="save" :loading="editLoading">Save</v-btn>
                      </v-card-actions>

                    </v-flex>

                  </v-form>

                </v-container>

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

          <!-- ****** VIEW PROFIL NOTICE BOARD ******  -->

  
          <v-dialog v-model="dialog1" max-width="600px">

            <v-toolbar color="v-toolbar">

              <v-spacer></v-spacer>

              <v-toolbar-title>
                <h3>Subject</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 xs7 sm6>

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

                        </v-flex>

                        <v-flex sm6 xs5>

                          <h5 class="my-1">{{ editedItem.subjectName }}</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 SUBJECTS TABLE ****** -->
          <v-card flat>
            <v-card-actions>
              <v-layout>

                <v-flex xs4 sm2 lg1>

                  <label class="right mt-4">Select Class:</label>
                </v-flex>

                <v-flex xs8 sm4 lg3>

                  <v-select
                    :items="classList"
                    label="Select Class"

                    v-model="selectClassId"

                    item-text="classNum"
                    item-value="_id"
                    name="Select Class"
                    :rules="nameRules"

                    @change="getClassSubject"

                    class="px-4"
                    required
                  ></v-select>
                </v-flex>
              </v-layout>
            </v-card-actions>
          </v-card>

          <v-data-table
            :headers="headers"

            :items="subjectList.subjects"

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

              <td id="td" class="text-xs-center">{{ props.index + 1}}</td>

              <td id="td" class="text-xs-center">{{ props.item.subjectName}}</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 Subject ****** -->

  
        <v-tab-item>
          <v-container>
            <v-snackbar
              :timeout="timeout"
              :top="y === 'top'"
              :right="x === 'right'"
              :vertical="mode === 'vertical'"
              v-model="snackbar"

              :color="color"

            >{{ 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>
                      <v-form ref="form" v-model="valid" lazy-validation>
                        <v-layout>

                          <v-flex xs4 sm4 class="pt-4 subheading">

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

                          </v-flex>

                          <v-flex xs8 sm6 class="ml-3">

                            <v-select

                              v-model="addSubject.classId"

                              label="Select your class"

                              type="text"

                              :items="classList"
                              item-text="classNum"
                              item-value="_id"
                              :rules="nameRules"

                              required

                            ></v-select>

                          </v-flex>
                        </v-layout>

                        <v-layout>

                          <v-flex xs4 sm4 class="pt-4 subheading">

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

                          </v-flex>

                          <v-flex xs8 sm6 class="ml-3">

                            <v-text-field

                              v-model="addSubject.subjectName"

                              placeholder="fill your Subject Name"

                              name="name"
                              type="text"

                              :rules="subjectRules"

                              required
                            ></v-text-field>
                          </v-flex>
                        </v-layout>
                        <v-layout>
                          <v-flex xs12 sm9 offset-sm2>
                            <v-card-actions>
                              <v-btn @click="clear" round dark>clear</v-btn>
                              <v-spacer></v-spacer>
                              <v-btn @click="submit" round dark :loading="loading">Add</v-btn>
                            </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>

    </v-app>
  </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: "",

      color: "",

      showLoader: false,

      loading: false,

      editLoading: false,

      date: null,
      search: "",

      dialog: false,
      dialog1: false,
      valid: true,

      validEditSubject: true,

      isActive: true,
      newActive: false,

      gender: ["Male", "Female"],

      pagination: {

        rowsPerPage: 19

      },

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

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

      subjectRules: [v => !!v || " Subject Name is required"],

      subjectEditNameRules: [v => !!v || " Subject Name is required"],

      headers: [
        {
          text: "No",
          align: "center",
          sortable: false,
          value: "No"
        },

        {

          text: "Subject Name",
          value: "subjectName",

          sortable: false,
          align: "center"
        },

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

      subjectList: [],
      classList: [],

      editedIndex: -1,

      addSubject: {},
      selectClassId: "",

      selectClassId: "",

      editedItem: {

        subjectName: ""

      }

    }),

    methods: {
      pickFile() {
        this.$refs.image.click();
      },

      editItem(item) {

        console.log("item", item);

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

        this.editedItem = Object.assign({}, item);
        this.dialog1 = true;
      },
      deleteItem(item) {

        let deleteSubject = {

          classId: this.selectClassId,

          subjectId: item._id

        };
        http()
          .delete(

            "/deleteSubject",

            confirm("Are you sure you want to delete this?") && {

              params: deleteSubject

            }
          )
          .then(response => {

            this.getClassSubject();
            this.snackbar = true;
            this.text = "Successfully delete Existing Subject";

          })
          .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;

      },
      close1() {
        this.dialog1 = false;
      },
      submit() {
        if (this.$refs.form.validate()) {

          http()

            .post("/addSubject", this.addSubject)

            .then(response => {

              this.getClassSubject();
              this.snackbar = true;
              this.text = "New Subject added successfully";

              this.clear();

              this.color = "green";

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

              this.snackbar = true;
              this.text = error.response.data.message;
              this.color = "error";

            });
        }
      },

      clear() {
        this.$refs.form.reset();
      },
      save() {

        if (this.$refs.formEditSubject.validate()) {
          let editSubject = {
            classId: this.addSubject.selectName,
            subjectId: this.editedItem._id,
            subjectName: this.editedItem.subjectName
          };
          this.editLoading = true;
          http()
            .put("/updateSubject", editSubject)
            .then(response => {
              this.snackbar = true;

              this.text = "Successfully Edit Existing Subject";

              this.editLoading = false;
              http()
                .get(
                  "/getParticularClass",
                  { params: { classId: this.selectClassId } },
                  {
                    headers: { Authorization: "Bearer " + this.token }
                  }
                )
                .then(response => {
                  this.subjectList = response.data.data;
                  this.getClassSubject();
                  this.snackbar = true;
                  this.color = "green";
                  this.text = response.data.message;
                  this.close();
                })
                .catch(err => {
                  console.log("err====>", err);
                });
            })
            .catch(error => {
              this.editLoading = false;
  
              // console.log(error);
            });
        }

      },

      getClassSubject() {
        this.selectClassId = this.selectClassId;

        http()
          .get(
            "/getParticularClass",
            { params: { classId: this.selectClassId } },
            {
              headers: { Authorization: "Bearer " + this.token }
            }
          )
          .then(response => {
            this.subjectList = response.data.data;
          })
          .catch(err => {
            console.log("err====>", err);
          });
      },
      getClass() {
        http()
          .get("/getClassesList", {
            headers: { Authorization: "Bearer " + this.token }
          })
          .then(response => {
            this.classList = response.data.data;
          })

          .catch(error => {

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

          });

      }
    },
    mounted() {

      this.token = this.$store.state.token;
      // this.getNoticeDataList();
      this.getClass();

    },

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

    }
  };
  </script>
  <style scoped>

  .active {

    background-color: gray;

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

  </style>