<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 E-Books</v-tab>
        <v-tab
          ripple
          @click="activeTab('new')"
          v-bind:class="{ active: newActive }"
          id="tab1"
          User
          class="subheading"
        >Add E-Books</v-tab>
  
        <!-- ****** EDITS ALL NEWS DETAILS ****** -->
  
        <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="1000px" scrollable>
            <v-card flat>
              <v-toolbar class="grey lighten-2" flat>
                <v-spacer></v-spacer>
                <v-toolbar-title>
                  <h3>Edit E-Books</h3>
                </v-toolbar-title>
                <v-spacer></v-spacer>
              </v-toolbar>

              <v-card-text style="height:760px;">

                <v-form ref="form">
                  <v-container fluid>
                    <v-layout row>
                      <v-flex
                        xs12

                        class="text-xs-center text-sm-center text-md-center text-lg-center mr-4"

                      >
                        <input
                          type="file"
                          style="display: none"
                          ref="image"
                          accept="image/*"
                          multiple

                          @change="onImagePicked"

                        />
                        <v-layout justify-center>

                          <v-flex v-if="files != ''">
                            <img :src="files" height="450" width="500;" />
                          </v-flex>
                        </v-layout>
                        <img
                          v-if="editedItem.coverPhotoUrl && files == '' "
                          :src="editedItem.coverPhotoUrl"
                          height="450"
                          width="500"
                          alt="eBooks"
                          class="pa-2"
                        />
                        <!-- <v-layout justify-center>

                          <v-flex
                            xs3
                            v-for="Image in editedItem.newsImageUrl"
                            :key="Image._id"
                            v-if="editedItem.newsImageUrl"
                            class="profile-image-wrapper"
                          >

                            <v-icon
                              class="red edit-profile-icon"
                              dark
                              @click="deleteImage(Image._id,editedItem._id)"
                            >close</v-icon>
                          </v-flex>
                          <v-flex v-for="(file, index) in files" :key="index">
                            <img :src="file" height="160" width="160" class="pa-2" />
                          </v-flex>

                        </v-layout>-->

                        <img
                          src="/static/icon/user.png"

                          v-if="editedItem.coverPhotoUrl == ''"

                          height="160"
                          width="160"
                          alt="Books"
                        />
                      </v-flex>
                    </v-layout>

                    <v-layout>
                      <v-flex xs12 sm12>
                        <v-layout>
                          <v-flex xs4 class="pt-4 subheading">

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

                          </v-flex>
                          <v-flex xs5 class="ml-3">
                            <v-text-field

                              v-model="editedItem.name"
                              placeholder="fill your Name"

                              type="text"

                            ></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">Author:</label>
                          </v-flex>
                          <v-flex xs5 class="ml-3">
                            <v-text-field placeholder="fill your Author" v-model="editedItem.author"></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">Class:</label>

                          </v-flex>
                          <v-flex xs5 class="ml-3">
                            <v-text-field

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

                            ></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">Upload Image:</label>

                          </v-flex>
                          <v-flex xs5 class="ml-3">
                            <v-text-field
                              label="Select Image"

                              @click="pickImage"

                              v-model="imageName"
                              append-icon="attach_file"
                              multiple
                            ></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">Upload File:</label>
                          </v-flex>
                          <v-flex xs5 class="ml-3">
                            <input
                              type="file"
                              style="display: none"
                              ref="file"
                              @change="onFilePicked"
                            />
                            <v-text-field
                              label="Select File"
                              @click="pickFile"
                              v-model="fileName"
                              append-icon="attach_file"
                              multiple
                            ></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">Private:</label>
                          </v-flex>
                          <v-flex xs5 class="ml-3">
                            <v-checkbox v-model="editedItem.private"></v-checkbox>
                          </v-flex>
                        </v-layout>
                      </v-flex>

                    </v-layout>
                    <v-layout>
                      <v-flex xs12 sm8 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="loadingUpadte">Save</v-btn>

                        </v-card-actions>
                      </v-flex>
                    </v-layout>
                  </v-container>
                </v-form>
              </v-card-text>
            </v-card>
          </v-dialog>
  
          <!-- ****** PROFILE VIEW ALL NEWS DEATILS ******  -->

          <v-dialog v-model="dialog1" max-width="800px" scrollable>
            <v-card style="height: 700px;">

              <v-toolbar color="grey lighten-2" flat>
                <v-spacer></v-spacer>
                <v-toolbar-title>
                  <h3>E-Books</h3>
                </v-toolbar-title>
                <v-spacer></v-spacer>
                <v-icon @click="close1">close</v-icon>
              </v-toolbar>

              <v-card-text>

                <v-container>

                  <v-layout wrap>

                    <v-flex sm12 xs12>
                      <iframe :src="editedItem.fileUrl" height="600" width="100%"></iframe>

                    </v-flex>
                  </v-layout>
                </v-container>
              </v-card-text>
            </v-card>
          </v-dialog>

          <!-- ****** EXISTING-USERS NEWS TABLE ****** -->
          <v-data-table
            :headers="headers"

            :items="eBookData"

            :pagination.sync="pagination"
            :search="search"
          >
            <template slot="items" slot-scope="props">
              <td class="text-xs-center">{{ props.index + 1}}</td>
              <td id="td" class="text-xs-center">

                <img :src="props.item.coverPhotoUrl" alt="newsImage" width="100" height="70" />

              </td>

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

              <td id="td" class="text-xs-center">{{ props.item.classId.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 E-BOOK ****** -->

  
        <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 sm12 class="my-4">
              <v-card flat>
                <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 my-4 mr-4"
                      >
                        <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="240" width="260px;" />

                          </v-flex>
                        </v-layout>
                        <img
                          src="/static/icon/user.png"
                          v-if="files ==''"
                          height="140"
                          width="180px;"
                        />
                      </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 xs4 class="ml-3">
                          <v-text-field
                            v-model="addEBooks.name"
                            placeholder="fill your Title"
                            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 xs4 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 xs4 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 xs4 class="ml-3">
                          <v-text-field

                            label="Select Image"
                            @click="pickImage"
                            v-model="imageName"
                            append-icon="attach_file"
                            multiple

                          ></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 xs4 class="ml-3">

                          <input type="file" style="display: none" ref="file" @change="onFilePicked" />

                          <v-text-field

                            label="Select File"

                            @click="pickFile"

                            v-model="fileName"

                            append-icon="attach_file"
                            multiple
                          ></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 xs4 class="ml-3">
                          <v-checkbox v-model="addEBooks.private"></v-checkbox>
                        </v-flex>
                      </v-layout>
                    </v-flex>

                    <v-layout>

                      <v-flex xs12 sm7 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-container>
                </v-form>
              </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: "",
      loading: false,

      loadingUpadte: false,

      date: null,
      search: "",
      showLoader: false,
      dialog: false,
      dialog1: false,
      valid: true,
      isActive: true,
      newActive: false,

      addClass: [],

      addSection: [],
      AddUsercredentials: {},
      pagination: {
        rowsPerPage: 15
      },
      imageName: "",

      fileName: "",

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

      files: "",
      anyFile: "",

      titleRules: [v => !!v || " Tilte is required"],
      descriptionRules: [v => !!v || " Description is required"],
      headers: [
        {
          align: "justify-center",
          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: {},
      token: ""

    }),
    methods: {

      pickImage() {

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

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

      getEBooksList() {

        this.showLoader = true;

        http()

          .get("/getEBooksList", {
            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 = "";
        }

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

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

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

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

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

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

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

          });
      },
      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() {
        this.loading = true;
        if (this.$refs.form.validate()) {

          if (this.files) {

            const [baseUrl, imageUrl] = this.files.split(/,/);
            this.addEBooks.uploadCover = imageUrl;
            // console.log("anyFile.split(/,/)", this.addEBooks.uploadCover);
          }
          if (this.anyFile) {
            const [baseUrl, fileUrl] = this.anyFile.split(/,/);
            this.addEBooks.uploadFile = fileUrl;
            // console.log("anyFile.split(/,/)", this.addEBooks.uploadFile);

          }
          http()

            .post("/createEBook", this.addEBooks)

            .then(response => {

              this.snackbar = true;
              this.text = "New E-Book added successfully";

              this.addEBooks.uploadCover = "";

              this.addEBooks.uploadFile = "";
              this.files = "";
              this.getEBooksList();

              this.loading = false;
              this.clear();
            })
            .catch(error => {

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

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

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

      },
      save() {

        this.loadingUpadte = true;
        if (this.files.length > 0) {
          const [baseUrl, imageUrl] = this.files.split(/,/);
          this.editedItem.uploadCover = imageUrl;
          // console.log("anyFile.split(/,/)", this.addEBooks.uploadCover);

        }

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

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

        }

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

        http()

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

          .then(response => {

            this.loadingUpadte = false;
            this.snackbar = true;
            this.text = "Successfully Edit Existing E-Book";
            this.getEBooksList();
            this.editedItem.uploadFile = "";
            this.editedItem.uploadCover = "";
            this.anyFile = "";
            this.files = "";

            this.close();
          })
          .catch(error => {

            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: "/" });
          });

      }
    },
    mounted() {

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

      this.getEBooksList();

      this.getAllClass();

      // this.getBookData();

      // this.editItem;

    },
    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>