<template>

    <v-container fluid class="body-color">

      <v-snackbar
        :timeout="timeout"
        :top="y === 'top'"
        :right="x === 'right'"
        :vertical="mode === 'vertical'"
        v-model="snackbar"
        color="success"
      >{{ text }}</v-snackbar>

      <!-- ****** ATTENDENCE STUDENTS TABLE ****** -->
      <!-- <download-csv :data="json_data">

              <v-btn>Download Data</v-btn>

      </download-csv>-->
      <v-toolbar color="transparent" flat>

        <v-btn
          fab
          dark
          class="open-dialog-button hidden-xl-only hidden-md-only hidden-lg-only"
          small
          @click="addStudentAttendenceDialog = true"
        >
          <v-icon dark>add</v-icon>
        </v-btn>
        <v-btn
          v-if="role != 'ADMIN' && schoolRole != 'SCHOOLADMIN' "
          round
          class="open-dialog-button hidden-sm-only hidden-xs-only"
          dark
          @click="addStudentAttendenceDialog = true"
        >
          <v-icon class="white--text pr-1" size="20">add</v-icon>Add Student Attendence
        </v-btn>

        <v-spacer></v-spacer>
        <v-flex xs12 sm4 md2>
          <v-select
            small
            :items="addclass"
            label="Select Class"

            v-model="getReport.classId"

            item-text="classNum"
            item-value="_id"
            name="Select Class"

            @change="getSection(getReport.classId)"
            class="px-2"
            required
          ></v-select>
        </v-flex>
        <v-flex xs12 sm4 md2>
          <v-select
            small
            :items="addSection"
            label="Select Section"
            v-model="getReport.sectionId"
            item-text="name"
            item-value="_id"
            name="Select Section"
            @change="getStudents(getReport.sectionId)"

            class="px-2"
            required
          ></v-select>
        </v-flex>
        <v-card-title class="body-1" v-show="show">
          <v-btn icon large flat @click="displaySearch">
            <v-avatar size="27">

              <img src="/static/icon/search.png" alt="icon" />

            </v-avatar>
          </v-btn>
        </v-card-title>
        <v-flex xs8 sm8 md3 lg2 v-show="showSearch">
          <v-layout>
            <v-text-field v-model="search" label="Search" prepend-inner-icon="search" color="primary"></v-text-field>
            <v-icon @click="closeSearch" color="error">close</v-icon>

          </v-layout>

        </v-flex>
      </v-toolbar>

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

        :items="studentsData"

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

          <tr class="tr">
            <td class="td td-row">{{ props.index + 1}}</td>
            <td class="text-xs-center td td-row">
              <v-avatar size="40">
                <img :src="props.item.profilePicUrl" v-if="props.item.profilePicUrl" />
                <img src="/static/icon/user.png" v-else-if="!props.item.profilePicUrl" />
              </v-avatar>
            </td>
            <td class="text-xs-center td td-row">{{ props.item.name}}</td>

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

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

              <router-link :to="{ name:'View Students Attendence',params: { id:props.item._id } }">

                <v-tooltip top>
                  <img
                    slot="activator"
                    style="cursor:pointer; width:20px; height:25px; "
                    class="mr-3"

                    src="/static/icon/view.png"

                  />

                  <span>View</span>

                </v-tooltip>
              </router-link>

            </td>
          </tr>

        </template>
        <v-alert
          slot="no-results"
          :value="true"
          color="error"
          icon="warning"
        >Your search for "{{ search }}" found no results.</v-alert>
      </v-data-table>

      <!-- ****** Add Students Attendece****** -->
      <v-dialog v-model="addStudentAttendenceDialog" width="1600">
        <v-card flat class="pa-2">
          <v-layout>
            <v-flex xs12>
              <label class="title text-xs-center">Add Student Attendence</label>
              <v-icon size="24" class="right" @click="addStudentAttendenceDialog = false">cancel</v-icon>
            </v-flex>
          </v-layout>
          <v-flex xs12 class="mt-4">
            <v-form ref="form" v-model="valid" lazy-validation>
              <v-flex xs12 sm12 lg12>
                <v-layout wrap>
                  <v-flex xs6 sm6 lg3 md4>
                    <v-layout>
                      <v-flex xs3 sm6 lg2 class="subheading mt-4">
                        <label class="right">Class:</label>
                      </v-flex>
                      <v-flex xs9 sm6 lg8 class="ml-2">
                        <v-select
                          v-model="getReport.classId"
                          label="Select your class"
                          type="text"
                          :items="addclass"
                          item-text="classNum"
                          item-value="_id"
                          :rules="classRules"
                          @change="getSection(getReport.classId)"
                          required
                        ></v-select>
                      </v-flex>
                    </v-layout>
                  </v-flex>
                  <v-flex xs6 sm6 lg3 md8>
                    <v-layout>
                      <v-flex xs3 sm6 lg2 class="subheading mt-4">
                        <label class="right">Section:</label>
                      </v-flex>
                      <v-flex xs9 sm6 lg8 class="ml-2">
                        <v-select
                          :items="addSection"
                          label="Select your Section"
                          v-model="getReport.sectionId"
                          item-text="name"
                          item-value="_id"
                          name="Select Section"
                          :rules="sectionRules"
                          required
                        ></v-select>
                      </v-flex>
                    </v-layout>
                  </v-flex>
                  <v-flex xs6 sm6 lg3 md4>
                    <v-menu
                      ref="menu"
                      :close-on-content-click="false"
                      v-model="menu"
                      :nudge-right="40"
                      lazy
                      transition="scale-transition"
                      offset-y
                      full-width
                      min-width="290px"
                    >
                      <v-text-field
                        slot="activator"
                        v-model="date"
                        label="Select Date"
                        append-icon="event"
                        :rules="dataValid"
                        readonly
                      ></v-text-field>
                      <v-date-picker
                        ref="picker"
                        v-model="date"
                        :max="new Date().toISOString().substr(0, 10)"
                        min="1950-01-01"
                        @change="save"
                      ></v-date-picker>
                    </v-menu>
                  </v-flex>
                  <v-flex xs6 sm6 lg9 md8>
                    <v-btn round dark class="add-button" @click="showTable">Attendence</v-btn>
                  </v-flex>
                </v-layout>
              </v-flex>
            </v-form>
          </v-flex>
          <v-flex xs12 v-show="attendeceTable" class>
            <v-data-table
              :headers="headers"
              :items="studentsData"
              :pagination.sync="pagination"
              :search="search"
            >
              <template slot="items" slot-scope="props">
                <tr class="tr">
                  <td class="td td-row">{{ props.index + 1}}</td>
                  <td class="text-xs-center td td-row">
                    <v-avatar size="40">
                      <img :src="props.item.profilePicUrl" v-if="props.item.profilePicUrl" />
                      <img src="/static/icon/user.png" v-else-if="!props.item.profilePicUrl" />
                    </v-avatar>
                  </td>
                  <td class="text-xs-center td td-row">{{ props.item.name}}</td>
                  <td class="text-xs-center td td-row">{{ props.item.fatherCellNo }}</td>
                  <td class="text-xs-center td td-row">{{ props.item.email }}</td>
                  <td class="text-xs-center td td-row">
                    <v-radio-group v-model="props.item.attendence" :mandatory="false" row>
                      <v-radio
                        v-for="attendences in attendenceType"
                        :key="attendences.value"
                        :label="`${attendences.label}`"
                        :value="attendences.value"
                      ></v-radio>
                    </v-radio-group>
                  </td>
                </tr>
              </template>
            </v-data-table>
            <v-flex xs12>
              <v-card-actions>
                <v-spacer></v-spacer>
                <v-btn @click="update()" class="add-button" round dark>Submit</v-btn>
              </v-card-actions>
            </v-flex>
          </v-flex>
        </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>

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

    </v-container>

  </template>
  
  <script>
  import http from "@/Services/http.js";

  import moment from "moment";
  
  export default {
    data: () => ({
      snackbar: false,
      y: "top",
      x: "right",
      mode: "",
      timeout: 3000,
      text: "",

      show: true,
      showSearch: false,

      showLoader: false,
      loading: false,
      date: null,
      search: "",
      addclass: [],
      pagination: {

        rowsPerPage: 10

      },
      imageData: {},
      imageName: "",
      imageUrl: "",
      imageFile: "",
      headers: [
        {
          text: "No",

          align: "",

          sortable: false,
          value: "index"
        },
        {
          text: "Profile Pic",
          value: "profilprofilePicUrlePicUrl",
          sortable: false,
          align: "center"
        },
        { text: "Name", value: "name", sortable: false, align: "center" },

        {
          text: "Mobile No",
          value: "fatherCellNo",
          sortable: false,
          align: "center"
        },

        { text: "Email", value: "email", sortable: false, align: "center" },

        { text: "Attendance", value: "", sortable: false, align: "center" }

      ],

      // json_data: [],

      parentId: "",
      token: "",
      selectStudents: {
        select: "",
        selectSection: ""

      },
  
      role: "",
      schoolRole: "",
      addStudentAttendenceDialog: false,
      attendeceTable: false,
      menu: false,
      valid: true,
  
      getReport: {},
      studentsList: [],
      studentsData: [],
      addSection: [],
  
      SectionName: ["A", "B", "C", "D", "E", "F"],
      classRules: [v => !!v || "Class is required"],
      sectionRules: [v => !!v || "Class is required"],
      studentRules: [v => !!v || "Student is required"],
      dataValid: [v => !!v || "Date is required"],
  
      attendenceType: [
        {
          label: "Present",
          value: true
        },
        {
          label: "Absent",
          value: false
        }
      ]

    }),
    methods: {

      save(date) {
        this.$refs.menu.save(date);
      },
      showTable() {
        this.attendeceTable = true;
        this.getStudents();
      },
      getAllClass() {
        http()
          .get("/getClassesList", {
            headers: { Authorization: "Bearer " + this.token }
          })
          .then(response => {
            this.addclass = response.data.data;
          })
          .catch(error => {
            // console.log("err====>", err);
            // this.$router.replace({ path: "/" });
          });
      },
      getSection(_id) {

        this.showLoader = true;

        http()
          .get(

            "/getSectionsList",

            { params: { classId: _id } },
            {

              headers: { Authorization: "Bearer " + this.token }

            }
          )
          .then(response => {

            this.addSection = response.data.data;

            this.showLoader = false;

          })

          .catch(err => {

            this.showLoader = false;

            // console.log("err====>", err);

          });
      },

      getStudents(_id) {
        this.showLoader = true;

        http()

          .get("/getStudentWithClass", {
            params: {
              classId: this.getReport.classId,
              sectionId: this.getReport.sectionId
            }

          })
          .then(response => {

            this.studentsData = response.data.data;
            this.showLoader = false;
            // this.addStudentAttendenceDialog = false;
            var attendence = "";
            for (let i = 0; i < this.studentsData.length; i++) {
              this.studentsData[i].attendence = true;
            }

          })

          .catch(error => {

            console.log("err====>", error);
            this.showLoader = false;
          });
      },
      update() {
        var studentsAttendence = [];
        for (var j = 0; j < this.studentsData.length; j++) {
          studentsAttendence.push({
            studentId: this.studentsData[j]._id,
            isPresent: this.studentsData[j].attendence

          });

        }
        if (this.$refs.form.validate()) {
          let attendanceData = {
            sectionId: this.getReport.sectionId,
            date: this.date,
            students: studentsAttendence
          };
          http()
            .put("/updateAttendance", attendanceData)
            .then(response => {
              this.snackbar = true;
              this.text = response.data.message;
              this.addStudentAttendenceDialog = false;
            })
            .catch(error => {
              this.snackbar = true;
              this.text = error.response.data.message;
            });
        }

      },

      displaySearch() {
        (this.show = false), (this.showSearch = true);
      },
      closeSearch() {
        this.showSearch = false;
        this.show = true;
        this.search = "";

      }
    },
    mounted() {
      // this.getStudentList();
      this.token = this.$store.state.token;
      this.getAllClass();

      this.role = this.$store.state.role;

    }
  };

  </script>