<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 News</v-tab>
        <v-tab
          ripple
          @click="activeTab('new')"
          v-bind:class="{ active: newActive }"
          id="tab1"
          User
          class="subheading"
        >Add News</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 News</h3>
                </v-toolbar-title>

                <v-spacer></v-spacer>

              </v-toolbar>
              <v-card-text style="height:600px;">

                <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 my-4 mr-4"

                      >

                        <input

                          type="file"

                          style="display: none"

                          ref="image"
                          accept="image/*"

                          multiple

                          @change="onFilePicked"

                        />

                        <v-layout justify-center>

                          <v-flex
                            xs3
                            v-for="Image in editedItem.newsImageUrl"
                            :key="Image._id"
                            v-if="editedItem.newsImageUrl"
                            class="profile-image-wrapper"
                          >
                            <img
                              :src="Image.imageUrl"
                              height="160"
                              width="160"
                              alt="News"
                              class="pa-2"
                            />
                            <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.newsImageUrl ==''"
                          height="160"
                          width="160"
                          alt="News"
                        />

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

                    <!-- </v-layout> -->

                    <v-layout>

                      <v-flex xs12 sm12>

                        <v-layout>
                          <v-flex xs4 class="pt-4 subheading">
                            <label class="right">Title:</label>
                          </v-flex>

                          <v-flex xs5 class="ml-3">

                            <v-text-field
                              v-model="editedItem.title"
                              placeholder="fill your Title"
                              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">Description:</label>
                          </v-flex>

                          <v-flex xs5 class="ml-3">

                            <v-text-field
                              placeholder="fill your Description"
                              v-model="editedItem.description"
                              type="text"
                              name="email"
                              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">Add New Images:</label>

                          </v-flex>
                          <v-flex xs5 class="ml-3">
                            <v-text-field
                              label="Select Image"
                              @click="pickFile"
                              v-model="imageName"
                              append-icon="attach_file"
                              multiple
                            ></v-text-field>
                          </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">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">

            <v-card>
              <v-toolbar color="grey lighten-2" flat>

                <v-spacer></v-spacer>
                <v-toolbar-title>
                  <h3>News</h3>
                </v-toolbar-title>
                <v-spacer></v-spacer>
                <v-icon @click="close1">close</v-icon>
              </v-toolbar>
              <v-flex align-center justify-center layout text-xs-center>

                <!-- <v-avatar size="50px" style="position:absolute; top:20px;">

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

                </v-avatar>-->

                <span v-for="(image,i) in editedItem.newsImageUrl" :key="i" class="mt-4 pa-2">

                  <img :src="image.imageUrl" alt="News" width="240" height="180" />
                </span>

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

                      <v-layout>
                        <v-flex xs5 sm6>

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

                        </v-flex>
                        <v-flex sm6 xs8>
                          <h5 class="my-1">{{ editedItem.title }}</h5>
                        </v-flex>
                      </v-layout>
                      <v-layout>
                        <v-flex xs5 sm6>

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

                        </v-flex>
                        <v-flex sm6 xs8>
                          <h5 class="my-1">{{ editedItem.description }}</h5>
                        </v-flex>
                      </v-layout>
                    </v-flex>
                  </v-layout>
                </v-container>
              </v-card-text>
            </v-card>
          </v-dialog>
  
          <v-snackbar
            :timeout="timeout"
            :top="y === 'top'"
            :right="x === 'right'"
            :vertical="mode === 'vertical'"
            v-model="snackbar"
            color="success"
          >{{ text }}</v-snackbar>
  
          <!-- ****** EXISTING-USERS NEWS TABLE ****** -->
          <v-data-table
            :headers="headers"
            :items="desserts"
            :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">
                <span v-for="(image,_id) in props.item.newsImageUrl" class="pa-2">
                  <img :src="image.imageUrl" alt="newsImage" width="100" height="70" />
                </span>
              </td>

              <td id="td" class="text-xs-center">{{ props.item.title}}</td>
              <td id="td" class="text-xs-center">{{ props.item.description}}</td>
  
              <td class="text-xs-center">
                <span>
                  <img
                    style="cursor:pointer; width:25px; height:18px; "
                    class="mr-5"
                    @click="profile(props.item)"
                    src="/static/icon/eye1.png"

                  />

                  <img
                    style="cursor:pointer; width:20px; height:18px; "
                    class="mr-5"
                    @click="editItem(props.item)"
                    src="/static/icon/edit1.png"

                  />

                  <img

                    style="cursor:pointer;width:20px; height:20px; "

                    class="mr-5"
                    @click="deleteItem(props.item)"
                    src="/static/icon/delete1.png"

                  />

                </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 NEWS ****** -->
  
        <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/*"

                          multiple

                          @change="onFilePicked"

                        />

                        <v-layout justify-center>

                          <v-flex v-for="(file,index) in files" :key="index" v-if="files">
                            <img :src="file" height="160" width="160px;" />

                          </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">Title:</label>
                        </v-flex>
                        <v-flex xs4 class="ml-3">
                          <v-text-field
                            v-model="addNews.title"
                            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">Description:</label>
                        </v-flex>
                        <v-flex xs4 class="ml-3">
                          <v-text-field
                            placeholder="fill your Description"
                            :rules="descriptionRules"
                            v-model="addNews.description"
                            type="text"
                            name="email"
                            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">Uplaod Image:</label>
                        </v-flex>
                        <v-flex xs4 class="ml-3">
                          <v-text-field
                            label="Select Image"
                            @click="pickFile"
                            v-model="imageName"
                            append-icon="attach_file"
                            multiple
                          ></v-text-field>
                        </v-flex>
                      </v-layout>
                    </v-flex>

                    <v-layout>
                      <v-flex xs12 sm6 offset-sm3>
                        <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,
      date: null,
      search: "",

      showLoader: false,

      dialog: false,
      dialog1: false,
      valid: true,
      isActive: true,
      newActive: false,
      addclass: [],
      addSection: [],

      AddUsercredentials: {},
      pagination: {
        rowsPerPage: 15
      },

      imageName: "",
      imageUrl: "",
      imageFile: "",

      image: [],

      upload: "",
      files: [],

      titleRules: [v => !!v || " Tilte is required"],
      descriptionRules: [v => !!v || " Description is required"],
      headers: [
        {

          align: "justify-center",

          text: "No",

          sortable: false,
          value: "No"
        },

        { text: "Image", vaue: "image", sortable: false, align: "center" },

        { text: "Title", value: "title", sortable: false, align: "center" },

        {
          text: "Description",
          value: "description",
          sortable: false,
          align: "center"
        },

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

      desserts: [],

      editedIndex: -1,
      addNews: {
        title: "",

        description: ""

      },
      editedItem: {
        title: "",

        description: ""

      },
      defaultItem: {
        title: "",
        description: ""
      },

    }),

    methods: {
      getSections(_id) {

        console.log("_id", _id);

        var token = this.$store.state.token;
        http()
          .get(
            "/getSectionsList",
            { params: { classId: _id } },
            {
              headers: { Authorization: "Bearer " + token }
            }
          )
          .then(response => {
            this.addSection = response.data.data;
            // console.log("getSectionsList=====>", this.addSection);
          })
          .catch(err => {

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

            // this.$router.replace({ path: '/' });
          });
      },
      pickFile() {
        this.$refs.image.click();
      },

      onFilePicked(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;

          }
          this.files = [];
          // console.log("files", this.files);
          /** Select many image and showing many image add to news card **/
          const test = Array.from(files).forEach((file, idx) => {
            const fr = new FileReader();
            const getResult = new Promise(resolve => {
              fr.onload = e => {
                this.files.push(
                  // id: idx,
                  e.target.result
                );
              };
            });
            fr.readAsDataURL(file);
            return getResult.then(file => {
              return file;
            });

          });

          const fr = new FileReader();
          fr.readAsDataURL(files[0]);
          fr.addEventListener("load", () => {
            this.imageFile = files; // this is an image file that can be sent to server...
            // console.log("uploadImage=======>", this.imageFile );

          });

        } else {
          this.imageName = "";
          this.imageFile = "";
          this.imageUrl = "";
        }
      },
      getNewsList() {

        this.showLoader = true;

        var token = this.$store.state.token;
        http()
          .get("/getNewsList", {
            headers: { Authorization: "Bearer " + token }
          })
          .then(response => {
            this.desserts = response.data.data;

            this.showLoader = false;

            // console.log("getNewsList=====>",this.desserts)
          })
          .catch(err => {
            // 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);
            }

          });
      },
      editItem(item) {

        this.files = [];

        this.editedIndex = this.desserts.indexOf(item);
        this.editedItem = Object.assign({}, item);
        this.dialog = true;
      },
      profile(item) {
        this.editedIndex = this.desserts.indexOf(item);
        this.editedItem = Object.assign({}, item);
        this.dialog1 = true;
      },

      deleteItem(item) {
        let deleteNews = {
          newsId: item._id
        };
        http()
          .delete(
            "/deleteNews",
            confirm("Are you sure you want to delete this?") && {
              params: deleteNews
            }
          )
          .then(response => {
            // console.log("deleteNews",deleteNews)
            if ((this.snackbar = true)) {

              this.text = "Successfully delete Existing News";

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

      deleteImage(imageId, newsId) {
        console.log(imageId, newsId);
        let deleteImages = {

          newsId: newsId,
          imageId: imageId
        };
        http()
          .put("/deleteImages", deleteImages)
          .then(response => {

            console.log("deleteNews", deleteImages);

            if ((this.snackbar = true)) {
              this.text = "Image deleted Successfully";
            }
            this.getNewsList();

            this.close();

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

      activeTab(type) {
        switch (type) {
          case "existing":
            this.newActive = false;
            this.isActive = true;
            break;
  
          default:
            this.newActive = true;
            this.isActive = false;
            break;
        }
      },
      close() {
        this.dialog = false;
        setTimeout(() => {
          this.editedItem = Object.assign({}, this.defaultItem);
          this.editedIndex = -1;
        }, 300);
      },
      close1() {
        this.dialog1 = false;
      },

      submit() {

        this.loading = true;

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

          let newsData = {
            title: this.addNews.title,
            description: this.addNews.description
          };
          if (this.files) {
            var ary = [];
            var imageData = [];
            ary = this.files;
            for (let i = 0; i < ary.length; i++) {
              const [baseUrl, imageUrl] = ary[i].split(/,/);
              imageData.push(imageUrl);
              newsData.upload = imageData;
            }

          }

          http()

            .post("/createNews", newsData)

            .then(response => {

              console.log(newsData);

              if ((this.snackbar = true)) {

                this.text = "New News added successfully";

              }
              this.getNewsList();

              this.loading = false;

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

              if ((this.snackbar = true)) {
                this.text = error.response.data.message;
              }
            });
        }
      },

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

        let editNews = {
          title: this.editedItem.title,
          description: this.editedItem.description,

          newsId: this.editedItem._id

        };
        if (this.files) {

          var ary = [];
          var imageData = [];
          ary = this.files;
          for (let i = 0; i < ary.length; i++) {
            const [baseUrl, imageUrl] = ary[i].split(/,/);
            imageData.push(imageUrl);
            editNews.upload = imageData;

          }

        }

        http()
          .put("/updateNews", editNews)
          .then(response => {
            // console.log("updateNews",updateNews);
            if ((this.snackbar = true)) {

              this.text = "Successfully Edit Existing News";

            }
            this.getNewsList();

            this.close();

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

      },

    },
    mounted() {
      this.getNewsList();

      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>