1 files changed, 126 insertions, 0 deletions
diff --git a/app/assets/javascripts/issuable/bulk_update_sidebar/issuable_bulk_update_actions.js b/app/assets/javascripts/issuable/bulk_update_sidebar/issuable_bulk_update_actions.js
new file mode 100644
index 00000000000..14824820c0d
--- /dev/null
+++ b/app/assets/javascripts/issuable/bulk_update_sidebar/issuable_bulk_update_actions.js
@@ -0,0 +1,126 @@
+import $ from 'jquery';
+import { difference, intersection, union } from 'lodash';
+import createFlash from '~/flash';
+import axios from '~/lib/utils/axios_utils';
+import { __ } from '~/locale';
+
+export default {
+  init({ form, issues, prefixId } = {}) {
+    this.prefixId = prefixId || 'issue_';
+    this.form = form || this.getElement('.bulk-update');
+    this.$labelDropdown = this.form.find('.js-label-select');
+    this.issues = issues || this.getElement('.issues-list .issue');
+    this.willUpdateLabels = false;
+    this.bindEvents();
+  },
+
+  bindEvents() {
+    // eslint-disable-next-line @gitlab/no-global-event-off
+    return this.form.off('submit').on('submit', this.onFormSubmit.bind(this));
+  },
+
+  onFormSubmit(e) {
+    e.preventDefault();
+    return this.submit();
+  },
+
+  submit() {
+    axios[this.form.attr('method')](this.form.attr('action'), this.getFormDataAsObject())
+      .then(() => window.location.reload())
+      .catch(() => this.onFormSubmitFailure());
+  },
+
+  onFormSubmitFailure() {
+    this.form.find('[type="submit"]').enable();
+    return createFlash({
+      message: __('Issue update failed'),
+    });
+  },
+
+  /**
+   * Simple form serialization, it will return just what we need
+   * Returns key/value pairs from form data
+   */
+
+  getFormDataAsObject() {
+    const formData = {
+      update: {
+        state_event: this.form.find('input[name="update[state_event]"]').val(),
+        assignee_ids: [this.form.find('input[name="update[assignee_ids][]"]').val()],
+        milestone_id: this.form.find('input[name="update[milestone_id]"]').val(),
+        issuable_ids: this.form.find('input[name="update[issuable_ids]"]').val(),
+        subscription_event: this.form.find('input[name="update[subscription_event]"]').val(),
+        health_status: this.form.find('input[name="update[health_status]"]').val(),
+        epic_id: this.form.find('input[name="update[epic_id]"]').val(),
+        sprint_id: this.form.find('input[name="update[iteration_id]"]').val(),
+        add_label_ids: [],
+        remove_label_ids: [],
+      },
+    };
+    if (this.willUpdateLabels) {
+      formData.update.add_label_ids = this.$labelDropdown.data('user-checked');
+      formData.update.remove_label_ids = this.$labelDropdown.data('user-unchecked');
+    }
+    return formData;
+  },
+
+  setOriginalDropdownData() {
+    const $labelSelect = $('.bulk-update .js-label-select');
+    const userCheckedIds = $labelSelect.data('user-checked') || [];
+    const userUncheckedIds = $labelSelect.data('user-unchecked') || [];
+
+    // Common labels plus user checked labels minus user unchecked labels
+    const checkedIdsToShow = difference(
+      union(this.getOriginalCommonIds(), userCheckedIds),
+      userUncheckedIds,
+    );
+
+    // Indeterminate labels minus user checked labels minus user unchecked labels
+    const indeterminateIdsToShow = difference(
+      this.getOriginalIndeterminateIds(),
+      userCheckedIds,
+      userUncheckedIds,
+    );
+
+    $labelSelect.data('marked', checkedIdsToShow);
+    $labelSelect.data('indeterminate', indeterminateIdsToShow);
+  },
+
+  // From issuable's initial bulk selection
+  getOriginalCommonIds() {
+    const labelIds = [];
+    this.getElement('.issuable-list input[type="checkbox"]:checked').each((i, el) => {
+      labelIds.push(this.getElement(`#${this.prefixId}${el.dataset.id}`).data('labels'));
+    });
+    return intersection.apply(this, labelIds);
+  },
+
+  // From issuable's initial bulk selection
+  getOriginalIndeterminateIds() {
+    const uniqueIds = [];
+    const labelIds = [];
+    let issuableLabels = [];
+
+    // Collect unique label IDs for all checked issues
+    this.getElement('.issuable-list input[type="checkbox"]:checked').each((i, el) => {
+      issuableLabels = this.getElement(`#${this.prefixId}${el.dataset.id}`).data('labels');
+      issuableLabels.forEach((labelId) => {
+        // Store unique IDs
+        if (uniqueIds.indexOf(labelId) === -1) {
+          uniqueIds.push(labelId);
+        }
+      });
+      // Store array of IDs per issuable
+      labelIds.push(issuableLabels);
+    });
+    // Add uniqueIds to add it as argument for _.intersection
+    labelIds.unshift(uniqueIds);
+    // Return IDs that are present but not in all selected issuables
+    return uniqueIds.filter((x) => !intersection.apply(this, labelIds).includes(x));
+  },
+
+  getElement(selector) {
+    this.scopeEl = this.scopeEl || $('.content');
+    return this.scopeEl.find(selector);
+  },
+};