<template>
    <v-container fluid class="body-color">
      <!-- ****** EXISTING MARK TABLE ****** -->
      <v-toolbar color="transparent" flat>
        <v-btn
          fab
          dark
          class="open-dialog-button hidden-xl-only hidden-md-only hidden-lg-only"
          small
          @click="addMarkDialog = true"
        >
          <v-icon dark>add</v-icon>
        </v-btn>
        <v-btn
          round
          class="open-dialog-button hidden-sm-only hidden-xs-only"
          dark
          @click="addMarkDialog = true"
        >
          <v-icon class="white--text pr-1" size="20">add</v-icon>Add Mark
        </v-btn>
        <v-layout class="hidden-sm-only hidden-xs-only">
          <v-flex md3 lg2 class="ml-2">
            <v-select
              v-model="getMark.classId"
              label="Select your class"
              type="text"
              :items="classList"
              item-text="classNum"
              item-value="_id"
              @change="getSections(getMark.classId)"
              required
            ></v-select>
          </v-flex>
          <v-flex md3 lg2 class="ml-2">
            <v-select
              :items="addSection"
              label="Select your Section"
              v-model="getMark.sectionId"
              item-text="name"
              item-value="_id"
              name="Select Section"
              required
            ></v-select>
          </v-flex>
          <v-spacer></v-spacer>
          <v-btn
            @click="getStudents"
            round
            dark
            :loading="loading"
            class="right open-dialog-button mt-2"
          >Mark</v-btn>
        </v-layout>
        <v-spacer class="hidden-lg-only hidden-xl-only hidden-md-only"></v-spacer>
        <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-if="showSearch">

          <v-layout>

            <v-text-field
              autofocus
              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-card flat class="elevation-0 transparent hidden-lg-only hidden-xl-only hidden-md-only">
        <v-flex xs12 sm12 lg12>
          <v-layout wrap>
            <v-flex xs12 sm12 lg3>
              <v-layout>
                <v-flex xs3 sm6 lg2 class="subheading mt-4">
                  <label class="right">Class:</label>

                </v-flex>

                <v-flex xs12 sm12 lg8 class="ml-2">
                  <v-select
                    v-model="getMark.classId"
                    label="Select your class"
                    type="text"
                    :items="classList"
                    item-text="classNum"
                    item-value="_id"
                    @change="getSections(getMark.classId)"
                    required
                  ></v-select>
                </v-flex>
              </v-layout>
            </v-flex>
            <v-flex xs12 sm12 lg3>
              <v-layout>
                <v-flex xs3 sm6 lg2 class="subheading mt-4">
                  <label class="right">Section:</label>

                </v-flex>

                <v-flex xs12 sm12 lg8 class="ml-2">
                  <v-select
                    :items="addSection"
                    label="Select your Section"
                    v-model="getMark.sectionId"
                    item-text="name"
                    item-value="_id"
                    name="Select Section"
                    required
                  ></v-select>

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

            <v-flex xs12 sm12 lg6>
              <v-btn
                @click="getStudents"
                round
                dark
                :loading="loading"
                class="right mt-3 open-dialog-button"
              >Mark</v-btn>
            </v-flex>
          </v-layout>
        </v-flex>
      </v-card>
      <v-data-table
        :headers="headers"
        :items="getStudentsList"
        :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="td td-row text-xs-center">
              <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="td td-row text-xs-center">{{ props.item.name}}</td>
            <td class="td td-row text-xs-center">{{ props.item.rollNo }}</td>
            <td class="td td-row text-xs-center">{{ props.item.email }}</td>
            <td class="td td-row text-xs-center">
              <span>

                <router-link :to="{ name:'view Mark',params: { markId:props.item._id } }">

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

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

                    />
                    <span>View</span>
                  </v-tooltip>
                </router-link>
              </span>
            </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  Mark Schedule ****** -->

      <v-dialog v-model="addMarkDialog" max-width v-if="addMarkDialog" persistent>

        <v-card flat class>
          <v-layout class="pa-3 card-style white--text">
            <v-flex xs12>
              <label class="title text-xs-center">Add Mark</label>

              <v-icon
                size="24"
                class="right white--text"
                @click="$refs.form.reset();addMarkDialog = false"
              >cancel</v-icon>

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

          <v-form ref="form" v-model="valid" lazy-validation>
            <v-container fluid>
              <v-flex xs12 sm12 lg12>
                <v-layout wrap>
                  <v-flex xs12 sm12 lg10>
                    <v-layout wrap>
                      <v-flex xs12 sm12 lg3>
                        <v-flex xs3 sm2 lg2 class="subheading">
                          <label>Exam:</label>
                        </v-flex>
                        <v-flex xs12 sm12 lg10>
                          <v-select
                            label="Select your Exam Name"
                            :items="examList"
                            v-model="addMark.examId"
                            :rules="examRules"
                            item-text="examName"
                            item-value="_id"
                          ></v-select>
                        </v-flex>
                      </v-flex>
                      <v-flex xs12 sm12 lg3>
                        <v-flex xs3 sm6 lg2 class="subheading">
                          <label>Class:</label>
                        </v-flex>
                        <v-flex xs12 sm12 lg10 class>
                          <v-select
                            v-model="addMark.classId"
                            label="Select your class"
                            type="text"
                            :items="classList"
                            item-text="classNum"
                            item-value="_id"
                            :rules="classRules"
                            @change="getSections(addMark.classId)"
                            required
                          ></v-select>
                        </v-flex>
                      </v-flex>
                      <v-flex xs12 sm12 lg3>
                        <v-flex xs3 sm6 lg2 class="subheading">
                          <label>Section:</label>
                        </v-flex>
                        <v-flex xs12 sm12 lg10 class>
                          <v-select
                            :items="addSection"
                            label="Select your Section"
                            v-model="addMark.sectionId"
                            item-text="name"
                            item-value="_id"
                            name="Select Section"
                            :rules="sectionRules"
                            required
                          ></v-select>
                        </v-flex>
                      </v-flex>
                      <v-flex xs12 sm12 lg3>
                        <v-flex xs3 sm6 lg2 class="subheading">
                          <label>Subject:</label>
                        </v-flex>
                        <v-flex xs12 sm12 lg10 class>
                          <v-select
                            :items="subjects"
                            label="Select your Subject"
                            v-model="addMark.subjectId"
                            item-text="subjectName"
                            item-value="_id"
                            name="Select Section"
                            :rules="subjectRules"
                            required
                          ></v-select>
                        </v-flex>
                      </v-flex>
                    </v-layout>
                  </v-flex>
                  <v-flex xs12 sm12 lg2>
                    <v-flex xs12 sm12 lg12>
                      <v-btn
                        @click="findStudents"
                        round
                        dark
                        :loading="loading"

                        class="right mt-4 open-dialog-button"

                      >Mark</v-btn>
                    </v-flex>
                  </v-flex>
                </v-layout>
              </v-flex>

              <!-- ****** ADD  MARK TABLE DATA ****** -->

              <v-card class="mt-4 elevation-0 body-color">

                <v-data-table
                  :headers="headerOfMark"
                  :items="getStudentData"
                  :pagination.sync="pagination"
                  :search="search"

                  class="body-color"

                >
                  <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.rollNo }}</td>
                      <td
                        class="text-xs-center markTable td td-row"
                        v-for="(marks, index) in props.item.marksObtained"
                        :key="'A'+ index"
                      >
                        <v-text-field v-model="marks.marksScored"></v-text-field>
                      </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>
              </v-card>
              <v-layout class="mt-2">
                <v-flex xs12 sm12>
                  <v-layout>
                    <v-flex xs12>

                      <v-btn
                        @click="submit"
                        round
                        dark
                        :loading="loading"
                        class="right add-button"
                      >Add Mark</v-btn>

                    </v-flex>
                  </v-layout>
                </v-flex>
              </v-layout>
            </v-container>
          </v-form>

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

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

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

  </template>
  
  <script>
  import http from "@/Services/http.js";
  import moment from "moment";
  
  export default {
    data: () => ({

      show: true,
      showSearch: false,

      snackbar: false,
      date: null,

      color: "",
      y: "top",
      x: "right",
      mode: "",
      timeout: 10000,
      text: "",
      loading: false,

      search: "",

      show: true,
      showSearch: false,

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

  
      addMarkDialog: false,

      addSection: [],
      pagination: {

        rowsPerPage: 10,

      },

      classRules: [(v) => !!v || "Class is required"],
      sectionRules: [(v) => !!v || "section is required"],
      subjectRules: [(v) => !!v || "Subject is required"],
      examRules: [(v) => !!v || "Exam is required"],

  
      headerOfMark: [

        {

          align: "",

          text: "No",
          sortable: false,

          value: "No",

        },
        {
          text: "Profile Pic",
          vaue: "profilePicUrl",
          sortable: false,

          align: "center",

        },
        {
          text: "Name",
          vaue: "name",
          sortable: false,

          align: "center",

        },
        {
          text: "Roll No.",
          value: "rollNo",
          sortable: false,

          align: "center",
        },

      ],
      headers: [
        {

          align: "",

          text: "No",
          sortable: false,

          value: "No",

        },
        {
          text: "Profile Pic",
          vaue: "profilePicUrl",
          sortable: false,

          align: "center",

        },
        {
          text: "Name",
          vaue: "name",
          sortable: false,

          align: "center",

        },
        {
          text: "Roll No.",
          value: "rollNo",
          sortable: false,

          align: "center",

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

          align: "center",

        },

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

      ],
      classList: [],
      examList: [],
      subjects: [],
      addMark: {},
      getMark: {},

      getScheduleData: {},
      markData: [],
      getStudentData: [],
      getStudentsList: [],

      token: "",

    }),

    watch: {
      addMarkDialog: function (val) {
        if (!val) {
          this.addMark = [];
          this.getStudentData = [];
        }
      },
    },

    methods: {

      getClass() {
        this.showLoader = true;
        http()
          .get("/getClassesList", {

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

          })

          .then((response) => {

            this.classList = response.data.data;
            this.showLoader = false;

          })

          .catch((err) => {

            // console.log("err====>", err);
            this.showLoader = false;
          });
      },
      getSections(_id) {
        this.showLoader = true;
        for (let i = 0; i < this.classList.length; i++) {
          if (_id == this.classList[i]._id) {

            this.subjects = this.classList[i].subjects;
          }
        }

        this.getStudentsList = [];

        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);
          });
      },
      getExamList() {
        this.showLoader = true;
        this.loadingSearch = true;
        http()
          .get("/getExamsList", {

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

          })

          .then((response) => {

            this.examList = response.data.data;
            this.showLoader = false;
            this.loadingSearch = false;
          })

          .catch((error) => {

            // console.log("err====>", err);
            this.showLoader = false;
            this.loadingSearch = false;
            this.snackbar = true;
            this.text = error.response.data.message;
            if (error.response.status === 401) {
              this.$router.replace({ path: "/" });
              this.$store.dispatch("setToken", null);
              this.$store.dispatch("Id", null);

              this.$store.dispatch("Role", null);

            }
          });
      },
      findStudents() {

        this.getStudentData = [];

        if (this.$refs.form.validate()) {
          this.showLoader = true;
          http()
            .get("/getStudentWithClass", {
              params: {
                classId: this.addMark.classId,

                sectionId: this.addMark.sectionId,
              },

            })

            .then((response) => {

              this.getStudentData = response.data.data;

              // this.showLoader = false;

              this.showLoader = true;
              http()
                .get("/getMarkDistributionsList", {

                  params: this.addMark,

                })

                .then((response) => {

                  this.showLoader = false;

                  this.headerOfMark.length = 4;

                  for (var i = 0; i < response.data.data.length; i++) {
                    this.headerOfMark.push({
                      text:
                        response.data.data[i].distributionType +
                        " (" +
                        response.data.data[i].markValue +
                        ")",
                      sortable: false,

                      align: "center",

                    });
                  }

                  for (var n = 0; n < this.getStudentData.length; n++) {
                    this.getStudentData[n].marksObtained = [];

                    for (var j = 0; j < response.data.data.length; j++) {

                      this.getStudentData[n].marksObtained.push({

                        markDistributionId: response.data.data[j]._id,

                        marksScored: 0,
                        markValue: response.data.data[j].markValue,

                        distributionType: response.data.data[j].distributionType,

                      });
                    }

                    // if (marks.marksScored > marks.marksObtained) {
                    //   this.getStudentData[n].marksScored = this.getStudentData[n].marksObtained;
                    //   this.marks.marksScored = marks.marksObtained;
                    // }

                  }

                })

                .catch((error) => {

                  this.showLoader = false;
                });
            })

            .catch((error) => {

              this.showLoader = false;
            });
        }
      },

      async submit() {
        for (let [j, item] of this.getStudentData.entries()) {
          for (var k = 0; k < item.marksObtained.length; k++) {
            if (
              item.marksObtained[k].marksScored > item.marksObtained[k].markValue
            ) {
              this.snackbar = true;
              this.text = `Student (${item.name}) marks (${item.marksObtained[k].marksScored}) in 
                "${item.marksObtained[k].distributionType}" should not be greater than Total Marks (${item.marksObtained[k].markValue})`;
              this.color = "error";
              return;
            }
          }

          let data = {
            examId: this.addMark.examId,
            classId: this.addMark.classId,
            sectionId: this.addMark.sectionId,
            subjectId: this.addMark.subjectId,

            studentId: item._id,

            studentsMarks: item.marksObtained,

          };

          try {
            let response = await http().post("/createMark", data);
            if (j + 1 === this.getStudentData.length) {

              this.getStudentData = [];

              this.snackbar = true;

              this.addMarkDialog = false;

              this.text = response.data.message;
              this.color = "green";

              this.$refs.form.reset();

            }
          } catch (error) {
            this.snackbar = true;
            this.text = error.response.data.message;
            this.color = "red";
          }

        }
      },
      getStudents() {
        this.showLoader = true;
        http()
          .get("/getStudentWithClass", {
            params: {
              classId: this.getMark.classId,

              sectionId: this.getMark.sectionId,
            },

          })

          .then((response) => {

            this.getStudentsList = response.data.data;
            this.showLoader = false;

          })

          .catch((error) => {

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

            this.showLoader = false;

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

          });

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

      },

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

      this.getClass();
      this.getExamList();

    },

  };
  </script>
  <style scoped>

  .markTable {

    max-width: 80px !important;

  }

  </style>