<template>

    <v-container fluid class="body-color">
      <!-- ****** EDITS EBOOK DETAILS ****** -->

      <v-dialog v-model="editEbookDialog" max-width="600px">
        <v-card flat class="card-style pa-2" dark>
          <v-layout>
            <v-flex xs12>
              <label class="title text-xs-center">Edit E-Book</label>
              <v-icon size="24" class="right" @click="editEbookDialog = false">cancel</v-icon>
            </v-flex>
          </v-layout>
          <v-card-text>

            <v-flex xs12 class="text-xs-center text-sm-center text-md-center text-lg-center">

              <input
                type="file"
                style="display: none"

                ref="editImage"

                accept="image/*"

                @change="onEditImagePicked"

              />

              <img

                v-if="editedItem.coverPhotoUrl"

                :src="editedItem.coverPhotoUrl"

                height="160"

                width="160"
                alt="eBooks"
                class="pa-2"
              />

              <img
                src="/static/icon/user.png"
                v-if="editedItem.coverPhotoUrl == ''"
                height="160"
                width="160"
                alt="Books"
              />
            </v-flex>
            <v-container grid-list-md>

              <v-flex xs12 sm12>

                <v-layout>

                  <v-flex xs4 class="pt-4 subheading">
                    <label class="right hidden-xs-only hidden-sm-only">Name :</label>
                    <label class="right hidden-lg-only hidden-md-only hidden-xl-only">Name :</label>

                  </v-flex>

                  <v-flex xs8 class="ml-3">
                    <v-text-field
                      v-model="editedItem.name"
                      placeholder="fill your full Name"
                      name="name"
                      type="text"
                      required
                    ></v-text-field>

                  </v-flex>

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

              <v-flex xs12 sm12>

                <v-layout>
                  <v-flex xs4 class="pt-4 subheading">
                    <label class="right hidden-xs-only hidden-sm-only">Author :</label>
                    <label class="right hidden-lg-only hidden-md-only hidden-xl-only">Author :</label>

                  </v-flex>

                  <v-flex xs8 class="ml-3">
                    <v-text-field
                      v-model="editedItem.author"
                      placeholder="fill your full author"
                      name="name"
                      type="text"
                      required
                    ></v-text-field>

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

              </v-flex>

              <v-flex xs12 sm12>

                <v-layout>

                  <v-flex xs4 class="pt-4 subheading">
                    <label class="right hidden-xs-only hidden-sm-only">Class :</label>
                    <label class="right hidden-lg-only hidden-md-only hidden-xl-only">Class :</label>
                  </v-flex>
                  <v-flex xs8 class="ml-3">

                    <v-select
                      v-model="editedItem.classId"
                      :items="addClass"
                      label="Select Class"
                      item-text="classNum"
                      item-value="_id"

                      type="_id"
                      required

                    ></v-select>
                  </v-flex>
                </v-layout>
              </v-flex>
              <v-flex xs12 sm12>
                <v-layout>
                  <v-flex xs4 class="pt-4 subheading">
                    <label class="right hidden-xs-only hidden-sm-only">Upload Image :</label>
                    <label class="right hidden-lg-only hidden-md-only hidden-xl-only">UploadImage :</label>
                  </v-flex>
                  <v-flex xs8 class="ml-3">
                    <v-text-field
                      label="Select Image"
                      @click="editPickImage"
                      v-model="editImageName"
                      append-icon="attach_file"
                    ></v-text-field>
                  </v-flex>
                </v-layout>
              </v-flex>
              <v-flex xs12>
                <v-layout>
                  <v-flex xs4 class="pt-4 subheading">
                    <label class="right">Upload File:</label>
                  </v-flex>
                  <v-flex xs8 class="ml-3">
                    <input
                      type="file"
                      style="display: none"
                      ref="editFile"
                      @change="onEditFilePicked"
                    />
                    <v-text-field
                      label="Select File"
                      @click="editPickFile"
                      v-model="editFileName"
                      append-icon="attach_file"

                    ></v-text-field>

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

              </v-flex>

              <v-card-actions>
                <v-spacer></v-spacer>
                <v-btn round dark @click="save" :loading="editLoading" class="add-button">Save</v-btn>
                <v-spacer></v-spacer>
              </v-card-actions>

            </v-container>

          </v-card-text>
        </v-card>
      </v-dialog>
  
      <!-- ****** PROFILE VIEW ALL NEWS DEATILS ******  -->

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

        <v-card flat class="card-style pa-3" dark>
          <v-layout>
            <v-flex xs12>

              <label class="title text-xs-center">View E-book</label>

              <v-icon size="24" class="right" @click="viewEbookDialog = false">cancel</v-icon>
            </v-flex>
          </v-layout>
          <v-layout>
            <v-flex align-center justify-center layout text-xs-center class="mt-3">
              <v-avatar size="100px">

                <img src="/static/icon/user.png" v-if="!editedItem.coverPhotoUrl" />
                <img :src="editedItem.coverPhotoUrl" v-else-if="editedItem.coverPhotoUrl" />

              </v-avatar>
            </v-flex>
          </v-layout>
          <v-container grid-list-md>
            <v-layout wrap>

              <v-flex xs12 sm12>

                <v-layout>
                  <v-flex xs6 sm6>
                    <h5 class="right my-1">
                      <b>Name:</b>
                    </h5>
                  </v-flex>
                  <v-flex sm6 xs6>
                    <h5 class="my-1 left">{{ editedItem.name }}</h5>
                  </v-flex>
                </v-layout>
              </v-flex>

              <v-flex xs12 sm12>

                <v-layout>

                  <v-flex xs6 sm6>

                    <h5 class="right my-1">
                      <b>Author:</b>
                    </h5>
                  </v-flex>

                  <v-flex sm6 xs6>

                    <h5 class="my-1 left">{{ editedItem.author }}</h5>
                  </v-flex>
                </v-layout>
              </v-flex>
            </v-layout>

            <v-flex xs12 sm12>
              <v-layout>
                <v-flex xs6 sm6>
                  <h5 class="right my-1">
                    <b>Class:</b>
                  </h5>
                </v-flex>
                <v-flex sm6 xs6>
                  <h5 class="my-1 left">{{ editedItem.classId .classNum}}</h5>
                </v-flex>
              </v-layout>
            </v-flex>

          </v-container>

        </v-card>
      </v-dialog>
      <!-- ****** EXISTING-USERS NEWS 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="addEBookDialog = true"
        >
          <v-icon dark>add</v-icon>
        </v-btn>
        <v-btn
          round
          class="open-dialog-button hidden-sm-only hidden-xs-only"
          dark
          @click="addEBookDialog = true"
        >
          <v-icon class="white--text pr-1" size="20">add</v-icon>Add E-Book
        </v-btn>
        <v-spacer></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-data-table
        :headers="headers"
        :items="eBookData"
        :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.coverPhotoUrl" v-if="props.item.coverPhotoUrl" alt="ebooks" />
                <img src="/static/icon/user.png" v-if="!props.item.coverPhotoUrl" />
              </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.author}}</td>
            <td class="td td-row text-xs-center">{{ props.item.classId.classNum}}</td>
            <td class="td td-row text-xs-center">
              <span>
                <v-tooltip top>
                  <img
                    slot="activator"
                    style="cursor:pointer; width:25px; height:25px; "
                    class="mr-3"
                    @click="profile(props.item)"

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

                  />
                  <span>View</span>
                </v-tooltip>
                <v-tooltip top>
                  <img
                    slot="activator"
                    style="cursor:pointer; width:20px; height:18px; "
                    class="mr-3"
                    @click="editItem(props.item)"

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

                  />
                  <span>Edit</span>
                </v-tooltip>

                <v-tooltip top v-if="role != 'TEACHER' ">

                  <img
                    slot="activator"
                    style="cursor:pointer; width:20px; height:20px; "
                    @click="deleteItem(props.item)"

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

                  />
                  <span>Delete</span>
                </v-tooltip>
              </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 MULTIPLE E-BOOK ****** -->
      <v-dialog v-model="addEBookDialog" max-width="600px">
        <v-card flat class="card-style pa-2" dark>
          <v-layout>
            <v-flex xs12>
              <label class="title text-xs-center">Add E-Book</label>
              <v-icon size="24" class="right" @click="addEBookDialog = false">cancel</v-icon>

            </v-flex>

          </v-layout>
          <v-form ref="form" v-model="valid" lazy-validation>
            <v-container fluid>
              <v-layout>

                <v-flex xs12 class="text-xs-center text-sm-center text-md-center text-lg-center">

                  <input
                    type="file"
                    style="display: none"
                    ref="image"
                    accept="image/*"
                    @change="onImagePicked"
                  />
                  <v-layout justify-center>
                    <v-flex v-if="files != ''">
                      <img :src="files" height="150" width="150" />
                    </v-flex>
                  </v-layout>
                  <img src="/static/icon/user.png" v-if="files ==''" height="80" width="80px;" />
                </v-flex>
              </v-layout>
              <v-flex xs12>
                <v-layout>
                  <v-flex xs4 class="pt-4 subheading">
                    <label class="right">Name:</label>
                  </v-flex>
                  <v-flex xs7 class="ml-3">
                    <v-text-field
                      v-model="addEBooks.name"

                      placeholder="fill name"

                      name="name"
                      type="text"
                      :rules="titleRules"
                      required
                    ></v-text-field>
                  </v-flex>
                </v-layout>
              </v-flex>
              <v-flex xs12>
                <v-layout>
                  <v-flex xs4 class="pt-4 subheading">
                    <label class="right">Author:</label>
                  </v-flex>
                  <v-flex xs7 class="ml-3">
                    <v-text-field
                      v-model="addEBooks.author"
                      placeholder="fill your Author Name"
                      name="name"
                      type="text"
                      :rules="titleRules"
                      required
                    ></v-text-field>
                  </v-flex>
                </v-layout>
              </v-flex>
              <v-flex xs12>
                <v-layout>
                  <v-flex xs4 class="pt-4 subheading">
                    <label class="right">Class:</label>
                  </v-flex>
                  <v-flex xs7 class="ml-3">
                    <v-select
                      v-model="addEBooks.classId"
                      :items="addClass"
                      label="Select Class"
                      item-text="classNum"
                      item-value="_id"
                      :rules="titleRules"
                      required
                    ></v-select>
                  </v-flex>
                </v-layout>
              </v-flex>
              <v-flex xs12>
                <v-layout>
                  <v-flex xs4 class="pt-4 subheading">
                    <label class="right">Upload Image:</label>
                  </v-flex>
                  <v-flex xs7 class="ml-3">
                    <v-text-field
                      label="Select Image"
                      @click="pickImage"

                      v-model="imageName"

                      :rules="uploadImageRule"

                      append-icon="attach_file"

                    ></v-text-field>
                  </v-flex>
                </v-layout>
              </v-flex>
              <v-flex xs12>
                <v-layout>
                  <v-flex xs4 class="pt-4 subheading">
                    <label class="right">Upload File:</label>
                  </v-flex>

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

                    <input type="file" style="display: none" ref="file" @change="onFilePicked" />
                    <v-text-field
                      label="Select File"
                      @click="pickFile"

                      v-model="fileName"

                      :rules="uploadFileRule"

                      append-icon="attach_file"

                    ></v-text-field>
                  </v-flex>
                </v-layout>
              </v-flex>
              <v-flex xs12>
                <v-layout>
                  <v-flex xs4 class="pt-3 subheading">
                    <label class="right">Private:</label>
                  </v-flex>
                  <v-flex xs7 class="ml-3">

                    <v-checkbox v-model="addEBooks.private" :rules="uploadPrivateRule"></v-checkbox>

                  </v-flex>
                </v-layout>
              </v-flex>
              <v-layout>
                <v-flex xs12>
                  <v-card-actions>
                    <v-spacer></v-spacer>
                    <v-btn @click="clear" round dark class="clear-button">clear</v-btn>
                    <v-btn @click="submit" round dark :loading="loading" class="add-button">Add</v-btn>
                  </v-card-actions>
                </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-container>

  </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: "",

      show: true,
      showSearch: false,

      loading: false,

      loadingUpadte: false,

      date: null,
      search: "",
      showLoader: false,

      editEbookDialog: false,
      viewEbookDialog: false,

      valid: true,

      addEBookDialog: false,

      editLoading: false,

      addClass: [],

      addSection: [],

      pagination: {

        rowsPerPage: 10,

      },
      imageName: "",

      fileName: "",

      imageUrl: "",
      imageFile: "",
      image: [],
      upload: "",

      files: "",
      anyFile: "",

      titleRules: [(v) => !!v || " Tilte is required"],
      descriptionRules: [(v) => !!v || " Description is required"],
      uploadImageRule: [(v) => !!v || " field is required"],
      uploadFileRule: [(v) => !!v || " fied is required"],
      uploadPrivateRule: [(v) => !!v || " fied is required"],

      headers: [
        {

          align: "left",

          text: "No",
          sortable: false,

          value: "No",

        },

        { text: "Photo", vaue: "fileUrl", sortable: false, align: "center" },
        { text: "Name", vaue: "name", sortable: false, align: "center" },
        { text: "Author", value: "author", sortable: false, align: "center" },

        {

          text: "Class",
          value: "classId",

          sortable: false,

          align: "center",

        },

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

      ],

      eBookData: [],

      editedIndex: -1,

      addEBooks: {

        private: false,

      },
      editedItem: {},

      editedItem: {
        classId: {

          classNum: "",
        },

      },

      token: "",

      uploadCover: {},
      editImageName: "",
      editFiles: "",
      editAnyFile: "",

      editFileName: "",

    }),
    methods: {

      editPickImage() {
        this.$refs.editImage.click();
      },

      pickImage() {

        this.$refs.image.click();
      },

      pickFile() {
        this.$refs.file.click();
      },

      editPickFile() {
        this.$refs.editFile.click();
      },

      onImagePicked(e) {

        // console.log(e)
        const files = e.target.files;
        /** fetch Image Name **/
        if (files[0] !== undefined) {
          this.imageName = files[0].name;
          if (this.imageName.lastIndexOf(".") <= 0) {
            return;
          }

          /** Select many image and showing many image add to news card **/

          const fr = new FileReader();
          fr.readAsDataURL(files[0]);
          fr.addEventListener("load", () => {

            this.files = fr.result;

          });
        } else {
          this.imageName = "";
          this.imageFile = "";

          this.files = "";

          this.imageUrl = "";
        }
      },

      onEditImagePicked(e) {
        // console.log(e)
        const files = e.target.files;
        /** fetch Image Name **/
        if (files[0] !== undefined) {
          this.editImageName = files[0].name;
          if (this.editImageName.lastIndexOf(".") <= 0) {
            return;
          }
          /** Select many image and showing many image add to news card **/
          const fr = new FileReader();
          fr.readAsDataURL(files[0]);
          fr.addEventListener("load", () => {
            this.editFiles = fr.result;
          });
        } else {
          this.editImageName = "";
          this.editFiles = "";
        }
      },

      getEBooksList() {

        this.showLoader = true;

        http()

          .get("/getEBooksList", {

            params: { schoolId: this.$store.state.schoolId },

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

          })

          .then((response) => {

            this.eBookData = response.data.data;

            this.showLoader = false;

          })

          .catch((error) => {

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

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

          });
      },
      onFilePicked(e) {
        // console.log(e)
        const files = e.target.files;
        /** fetch Image Name **/
        if (files[0] !== undefined) {
          this.fileName = files[0].name;
          if (this.fileName.lastIndexOf(".") <= 0) {
            return;
          }
          const fr = new FileReader();
          fr.readAsDataURL(files[0]);
          fr.addEventListener("load", () => {
            this.anyFile = fr.result;
            // console.log(" this.anyFile Url", this.anyFile )

          });

        } else {
          this.anyFile = "";
          this.fileName = "";
        }

      },

      onEditFilePicked(e) {
        // console.log(e)
        const files = e.target.files;
        /** fetch Image Name **/
        if (files[0] !== undefined) {
          this.editFileName = files[0].name;
          if (this.editFileName.lastIndexOf(".") <= 0) {
            return;
          }
          const fr = new FileReader();
          fr.readAsDataURL(files[0]);
          fr.addEventListener("load", () => {
            this.editAnyFile = fr.result;
            // console.log(" this.anyFile Url", this.anyFile )
          });
        } else {
          this.editAnyFile = "";
          this.editFileName = "";
        }
      },

      editItem(item) {
        this.files = [];

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

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

        this.editedItem.className = item.classId.classNum;

        this.editEbookDialog = true;

      },
      profile(item) {

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

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

        this.viewEbookDialog = true;

      },
      deleteItem(item) {

        let deleteEBooks = {

          ebookId: item._id,

        };
        http()
          .delete(

            "/deleteEBook",

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

              params: deleteEBooks,

            }
          )

          .then((response) => {

            this.snackbar = true;
            this.text = "Successfully delete Existing News";
            this.getEBooksList();

          })

          .catch((error) => {

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

          });
      },

      close() {

        this.editEbookDialog = false;

      },
      close1() {

        this.viewEbookDialog = false;

      },
      submit() {

        if (this.$refs.form.validate()) {

          this.loading = true;

          var uploadCover = "";
          var uploadFile = "";

          if (this.files) {

            const [baseUrl, imageUrl] = this.files.split(/,/);

            uploadCover = imageUrl;
            console.log("anyFile.split(/,/)", uploadCover);

          }
          if (this.anyFile) {
            const [baseUrl, fileUrl] = this.anyFile.split(/,/);

            uploadFile = fileUrl;
            console.log("anyFile.split(/,/)", uploadFile);

          }

          let data = {
            classId: this.addEBooks.classId,
            name: this.addEBooks.name,
            author: this.addEBooks.author,
            private: this.addEBooks.private,

            uploadCover: uploadCover,

            uploadFile: uploadFile,

          };

          http()

            .post("/createEBook", data)

            .then((response) => {

              this.getEBooksList();
              // this.getEBooksList = [];

              this.addEBookDialog = false;

              this.snackbar = true;

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

              this.loading = false;

              (this.imageName = ""), (this.fileName = "");

            })

            .catch((error) => {

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

              this.color = "red";

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

        this.addEBooks.uploadCover = "";
        this.files = "";

      },
      save() {

        this.editLoading = true;

        this.loadingUpadte = true;

        if (this.editFiles) {
          const [baseUrl, imageUrl] = this.editFiles.split(/,/);

          this.editedItem.uploadCover = imageUrl;
          // console.log("anyFile.split(/,/)", this.addEBooks.uploadCover);

        }

        if (this.editAnyFile) {
          const [baseUrl, fileUrl] = this.editAnyFile.split(/,/);

          this.editedItem.uploadFile = fileUrl;
          // console.log("anyFile.split(/,/)", this.addEBooks.uploadFile);

        }

        if (this.editedItem.classId._id) {
          this.editedItem.classId = this.editedItem.classId._id;
        }

        this.editedItem.ebookId = this.editedItem._id;

        console.log("this.editedItem", this.editedItem);

        http()

          .put("/updateEBook", this.editedItem)

          .then((response) => {

            this.loadingUpadte = false;
            this.snackbar = true;
            this.text = "Successfully Edit Existing E-Book";
            this.getEBooksList();

            this.editLoading = false;

            this.editedItem.uploadFile = "";
            this.editedItem.uploadCover = "";
            this.anyFile = "";
            this.files = "";

            this.close();
          })

          .catch((error) => {

            this.editLoading = false;

            this.loadingUpadte = false;
            this.snackbar = true;
            this.text = error.response.data.message;

            // console.log(error);
          });

      },
      getAllClass() {
        http()
          .get("/getClassesList", {

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

          })

          .then((response) => {

            this.addClass = response.data.data;
          })

          .catch((err) => {

            // console.log("err====>", err);
            // this.$router.replace({ path: "/" });
          });

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

      },

    },
    mounted() {

      this.token = this.$store.state.token;

      this.getEBooksList();

      this.getAllClass();

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

      // this.getBookData();

      // this.editItem;

    },

  };

  </script>