<template>
  <div>
    <h3 class="content-block main-title">Lokasi</h3>
    <p class="content-block">Lokasi</p>
    <div class="content-block">
      <div class="dx-card responsive-paddings">
        <div id="app-container">
          <DxDataGrid ref="currDataGrid"
            :data-source="customDataSource" 
            key-expr="id"
            :allow-column-reordering="true"
            :column-auto-width="true"
            @exporting="onExporting">
            <DxRemoteOperations :group-paging="true" />
            <DxEditing
                :allow-adding="true"
                :allow-updating="true"
                :allow-deleting="true"
                :use-icons="true"
                mode="popup">
                <DxTexts 
                add-row="Tambah"
                edit-row="Ubah"
                delete-row="Hapus"
                confirm-delete-message="Apakah anda yakin untuk menghapus data ini?"
                save-row-changes="Simpan"
                cancel-row-changes="Batal"
                ></DxTexts>
                <DxForm label-location="top" :col-count="1">
                  <DxItem dataField="lokasi">
                    <DxRequiredRule message="Lokasi harus diisi" />
                  </DxItem>
                  <DxItem dataField="keterangan" />
                </DxForm>
                <DxPopup
                    :hide-on-outside-click="true"
                    :show-title="true"
                    :width="400"
                    :height="400"
                    title="Form Lokasi"
                />
            </DxEditing>
            <DxToolbar>
                <DxItem name="groupPanel" />
                <DxItem name="searchPanel" location="before"/>
                <DxItem name="addRowButton" show-text="always" css-class="">
                  <DxTexts add-row="Tambah"></DxTexts>
                </DxItem>
                <DxItem name="exportButton" />
                <DxItem name="columnChooserButton" />
            </DxToolbar>
            <DxPaging :page-size="5" />
            <DxPager 
            :visible="true"
            :allowed-page-sizes="[5, 10, 50]" 
            :display-mode="compact" 
            :show-page-size-selector="true" 
            :show-info="true" 
            :show-navigation-buttons="true"
            info-text="Hal {0} dari {1} ({2} data)" />
            <DxFilterRow :visible="false" />
            <DxColumn data-field="id" caption="No" :width="45"></DxColumn>
            <DxColumn data-field="lokasi" caption="Lokasi"></DxColumn>
            <DxColumn data-field="keterangan" caption="Keterangan"></DxColumn>
            <DxColumn type="buttons" caption="Aksi">
              <DxButton name="edit"/>
              <DxButton name="delete"/>
            </DxColumn>
            <DxSearchPanel :visible="true" :highlight-case-sensitive="true" :width="300"  placeholder="Cari Lokasi..."/>
            <!--<DxExport
              :enabled="true"
              :formats="['xlsx', 'pdf']"
              :allow-export-selected-data="true"
            />-->
          </DxDataGrid>
        </div>
      </div>
    </div>
  </div>
</template>

<script> 
import DxDataGrid, {
  DxEditing,
  DxItem,
  DxForm,
  DxPopup,
  DxColumn,
  DxFilterRow,
  DxPager,
  DxPaging,
  DxSearchPanel,
  DxToolbar,
  DxTexts,
  DxRequiredRule
} from "devextreme-vue/data-grid";
import CustomStore from "devextreme/data/custom_store";
import { Workbook } from 'exceljs';
import { saveAs } from 'file-saver-es';
import { exportDataGrid as exportDataGridToExcel } from 'devextreme/excel_exporter';
import { jsPDF } from 'jspdf';
import { exportDataGrid as exportDataGridToPDF } from 'devextreme/pdf_exporter';

const URL = process.env.VUE_APP_ROOT_API+'/lokasi';

const customDataSource = new CustomStore({
  key: 'id',

  load: () => {
      return fetch(URL+'?size=100')
      .then((response) => response.json())
      .catch(() => { throw new Error('Terdapat kesalahan memuat data'); });
  },

  insert: (values) => {
        return fetch(URL, {
            method: "POST",
            body: JSON.stringify(values),
            headers: {
                'Content-Type': 'application/json'
            }
        });
    },

  update: (key, values) => {
      return fetch(URL + "/" + encodeURIComponent(key), {
          method: "PUT",
          body: JSON.stringify(values),
          headers: {
              'Content-Type': 'application/json'
          }
      });
  },

  remove: (key) => {
      return fetch(URL + "/" + encodeURIComponent(key), {
          method: "DELETE",
      });
  },
});

export default {
  components: {
    DxDataGrid,
    DxEditing,
    DxItem,
    DxForm,
    DxPopup,
    DxColumn,
    DxFilterRow,
    DxPager,
    DxPaging,
    DxSearchPanel,
    DxToolbar,
    DxTexts,
    DxRequiredRule
  },
  methods: {
    onExporting(e) {
      e.cancel = true;

      switch (e.format) {
        case "pdf": {
          const doc = new jsPDF();
          exportDataGridToPDF({
            jsPDFDocument: doc,
            component: e.component,
            indent: 5,
          }).then(() => {
            doc.save('Jenispengadaan.pdf');
          });
        }
        break;

        case "xlsx": {
          const workbook = new Workbook();
          const worksheet = workbook.addWorksheet('Lokasi');

          exportDataGridToExcel({
            component: e.component,
            worksheet: worksheet,
            autoFilterEnabled: true,
          }).then(() => {
            workbook.xlsx.writeBuffer().then((buffer) => {
              saveAs(new Blob([buffer], { type: 'application/octet-stream' }), 'DataGrid.xlsx');
            });
          });
        }
        break;
      }
      
    },
    onCellPrepared(e) {
      var isEditing = e.row.isEditing, $links = e.cellElement.find(".dx-link");
    
      $links.text("");
      
      if(isEditing){
          $links.filter(".dx-link-save").addClass("dx-icon-save").addClass("yellowClass");
          $links.filter(".dx-link-cancel").addClass("dx-icon-revert").addClass("yellowClass");
      } else {
          $links.filter(".dx-link-edit").addClass("dx-icon-edit").addClass("greenClass");
          $links.filter(".dx-link-delete").addClass("dx-icon-trash").addClass("redClass");
      }
    },
  },
  
  data() {
      return {
          //jsonUrl: URL,
          customDataSource,
      }
  },
}
</script>

<style lang="scss">
</style>
