Add support for adding Epics to Todos

Add Todo toggle button to Epic sidebar to allow user to toggle
Todo status of Epic.

ee/app/assets/javascripts/epic/components/epic_sidebar.vue

@@ -4,13 +4,15 @@ import { mapState, mapGetters, mapActions } from 'vuex';
 import epicUtils from '../utils/epic_utils';
 
 import SidebarHeader from './sidebar_items/sidebar_header.vue';
+import SidebarTodo from './sidebar_items/sidebar_todo.vue';
 
 export default {
   components: {
     SidebarHeader,
+    SidebarTodo,
   },
   computed: {
-    ...mapState(['epicId', 'sidebarCollapsed']),
+    ...mapState(['sidebarCollapsed']),
     ...mapGetters(['isUserSignedIn']),
   },
   mounted() {
@@ -33,6 +35,10 @@ export default {
   >
     <div class="issuable-sidebar js-issuable-update">
       <sidebar-header :sidebar-collapsed="sidebarCollapsed" />
+      <sidebar-todo
+        v-show="sidebarCollapsed && isUserSignedIn"
+        :sidebar-collapsed="sidebarCollapsed"
+      />
     </div>
   </aside>
 </template>

ee/app/assets/javascripts/epic/components/sidebar_items/sidebar_header.vue

@@ -3,9 +3,12 @@ import { mapActions } from 'vuex';
 
 import ToggleSidebar from '~/vue_shared/components/sidebar/toggle_sidebar.vue';
 
+import SidebarTodo from './sidebar_todo.vue';
+
 export default {
   components: {
     ToggleSidebar,
+    SidebarTodo,
   },
   props: {
     sidebarCollapsed: {
@@ -27,5 +30,6 @@ export default {
       css-classes="float-right"
       @toggle="toggleSidebar({ sidebarCollapsed })"
     />
+    <sidebar-todo v-show="!sidebarCollapsed" :sidebar-collapsed="sidebarCollapsed" />
   </div>
 </template>

ee/app/assets/javascripts/epic/components/sidebar_items/sidebar_todo.vue

+<script>
+import { mapState, mapGetters, mapActions } from 'vuex';
+
+import Todo from '~/sidebar/components/todo_toggle/todo.vue';
+
+export default {
+  components: {
+    Todo,
+  },
+  props: {
+    sidebarCollapsed: {
+      type: Boolean,
+      required: true,
+    },
+  },
+  computed: {
+    ...mapState(['epicId', 'todoExists', 'epicTodoToggleInProgress']),
+    ...mapGetters(['isUserSignedIn']),
+  },
+  methods: {
+    ...mapActions(['toggleTodo']),
+  },
+};
+</script>
+
+<template>
+  <div :class="{ 'block todo': isUserSignedIn && sidebarCollapsed }">
+    <todo
+      :collapsed="sidebarCollapsed"
+      :issuable-id="epicId"
+      :is-todo="todoExists"
+      :is-action-active="epicTodoToggleInProgress"
+      issuable-type="epic"
+      @toggleTodo="toggleTodo"
+    />
+  </div>
+</template>

ee/app/assets/javascripts/epic/store/actions.js

@@ -63,5 +63,47 @@ export const toggleSidebar = ({ dispatch }, { sidebarCollapsed }) => {
   dispatch('toggleSidebarFlag', !sidebarCollapsed);
 };
 
+/**
+ * Methods to handle toggling Todo from sidebar
+ */
+export const requestEpicTodoToggle = ({ commit }) => commit(types.REQUEST_EPIC_TODO_TOGGLE);
+export const requestEpicTodoToggleSuccess = ({ commit }, data) =>
+  commit(types.REQUEST_EPIC_TODO_TOGGLE_SUCCESS, data);
+export const requestEpicTodoToggleFailure = ({ commit, state }, data) => {
+  commit(types.REQUEST_EPIC_TODO_TOGGLE_FAILURE, data);
+
+  if (state.todoExists) {
+    flash(__('There was an error deleting the todo.'));
+  } else {
+    flash(__('There was an error adding a todo.'));
+  }
+};
+export const triggerTodoToggleEvent = (_, { count }) => {
+  epicUtils.triggerDocumentEvent('todo:toggle', count);
+};
+export const toggleTodo = ({ state, dispatch }) => {
+  let reqPromise;
+
+  dispatch('requestEpicTodoToggle');
+
+  if (!state.todoExists) {
+    reqPromise = axios.post(state.todoPath, {
+      issuable_id: state.epicId,
+      issuable_type: 'epic',
+    });
+  } else {
+    reqPromise = axios.delete(state.todoDeletePath);
+  }
+
+  reqPromise
+    .then(({ data }) => {
+      dispatch('triggerTodoToggleEvent', { count: data.count });
+      dispatch('requestEpicTodoToggleSuccess', { todoDeletePath: data.delete_path });
+    })
+    .catch(() => {
+      dispatch('requestEpicTodoToggleFailure');
+    });
+};
+
 // prevent babel-plugin-rewire from generating an invalid default during karma tests
 export default () => {};

ee/app/assets/javascripts/epic/store/mutation_types.js

@@ -7,3 +7,7 @@ export const REQUEST_EPIC_STATUS_CHANGE_FAILURE = 'REQUEST_EPIC_STATUS_CHANGE_FA
 export const TRIGGER_ISSUABLE_EVENTS = 'TRIGGER_ISSUABLE_EVENTS';
 
 export const TOGGLE_SIDEBAR = 'TOGGLE_SIDEBAR';
+
+export const REQUEST_EPIC_TODO_TOGGLE = 'REQUEST_EPIC_TODO_TOGGLE';
+export const REQUEST_EPIC_TODO_TOGGLE_SUCCESS = 'REQUEST_EPIC_TODO_TOGGLE_SUCCESS';
+export const REQUEST_EPIC_TODO_TOGGLE_FAILURE = 'REQUEST_EPIC_TODO_TOGGLE_FAILURE';

ee/app/assets/javascripts/epic/store/mutations.js

@@ -23,4 +23,16 @@ export default {
   [types.TOGGLE_SIDEBAR](state, isSidebarCollapsed) {
     state.sidebarCollapsed = isSidebarCollapsed;
   },
+
+  [types.REQUEST_EPIC_TODO_TOGGLE](state) {
+    state.epicTodoToggleInProgress = true;
+  },
+  [types.REQUEST_EPIC_TODO_TOGGLE_SUCCESS](state, { todoDeletePath }) {
+    state.todoDeletePath = todoDeletePath;
+    state.todoExists = !state.todoExists;
+    state.epicTodoToggleInProgress = false;
+  },
+  [types.REQUEST_EPIC_TODO_TOGGLE_FAILURE](state) {
+    state.epicTodoToggleInProgress = false;
+  },
 };

ee/app/assets/javascripts/epic/store/state.js

@@ -51,5 +51,6 @@ export default () => ({
   // UI status flags
   epicStatusChangeInProgress: false,
   epicDeleteInProgress: false,
+  epicTodoToggleInProgress: false,
   sidebarCollapsed: false,
 });

ee/spec/javascripts/epic/components/epic_sidebar_spec.js

@@ -7,6 +7,7 @@ import { mountComponentWithStore } from 'spec/helpers/vue_mount_component_helper
 import { mockEpicMeta, mockEpicData } from '../mock_data';
 
 describe('EpicSidebarComponent', () => {
+  const originalUserId = gon.current_user_id;
   let vm;
   let store;
 
@@ -28,6 +29,14 @@ describe('EpicSidebarComponent', () => {
   });
 
   describe('template', () => {
+    beforeAll(() => {
+      gon.current_user_id = 1;
+    });
+
+    afterAll(() => {
+      gon.current_user_id = originalUserId;
+    });
+
     it('renders component container element with classes `right-sidebar-expanded`, `right-sidebar` & `epic-sidebar`', done => {
       store.dispatch('toggleSidebarFlag', false);
 
@@ -44,5 +53,19 @@ describe('EpicSidebarComponent', () => {
     it('renders header container element with classes `issuable-sidebar` & `js-issuable-update`', () => {
       expect(vm.$el.querySelector('.issuable-sidebar.js-issuable-update')).not.toBeNull();
     });
+
+    it('renders Todo toggle button element when sidebar is collapsed and user is signed in', done => {
+      store.dispatch('toggleSidebarFlag', true);
+
+      vm.$nextTick()
+        .then(() => {
+          const todoBlockEl = vm.$el.querySelector('.block.todo');
+
+          expect(todoBlockEl).not.toBeNull();
+          expect(todoBlockEl.querySelector('button.btn-todo')).not.toBeNull();
+        })
+        .then(done)
+        .catch(done.fail);
+    });
   });
 });

ee/spec/javascripts/epic/components/sidebar_items/sidebar_header_spec.js

@@ -8,10 +8,11 @@ import { mockEpicMeta, mockEpicData } from '../../mock_data';
 
 describe('SidebarHeaderComponent', () => {
   let vm;
+  let store;
 
   beforeEach(done => {
     const Component = Vue.extend(SidebarHeader);
-    const store = createStore();
+    store = createStore();
     store.dispatch('setEpicMeta', mockEpicMeta);
     store.dispatch('setEpicData', mockEpicData);
 
@@ -40,6 +41,17 @@ describe('SidebarHeaderComponent', () => {
       expect(todoEl.innerText.trim()).toBe('Todo');
     });
 
+    it('renders Todo toggle button element when sidebar is expanded', done => {
+      vm.sidebarCollapsed = false;
+
+      vm.$nextTick()
+        .then(() => {
+          expect(vm.$el.querySelector('button.btn-todo')).not.toBeNull();
+        })
+        .then(done)
+        .catch(done.fail);
+    });
+
     it('renders toggle sidebar button element', () => {
       expect(vm.$el.querySelector('button.btn-sidebar-action')).not.toBeNull();
     });

ee/spec/javascripts/epic/components/sidebar_items/sidebar_todo_spec.js

+import Vue from 'vue';
+
+import SidebarTodo from 'ee/epic/components/sidebar_items/sidebar_todo.vue';
+import createStore from 'ee/epic/store';
+
+import { mountComponentWithStore } from 'spec/helpers/vue_mount_component_helper';
+import { mockEpicMeta, mockEpicData } from '../../mock_data';
+
+describe('SidebarTodoComponent', () => {
+  const originalUserId = gon.current_user_id;
+  let vm;
+  let store;
+
+  beforeEach(done => {
+    gon.current_user_id = 1;
+
+    const Component = Vue.extend(SidebarTodo);
+    store = createStore();
+    store.dispatch('setEpicMeta', mockEpicMeta);
+    store.dispatch('setEpicData', mockEpicData);
+
+    vm = mountComponentWithStore(Component, {
+      store,
+      props: { sidebarCollapsed: false },
+    });
+
+    setTimeout(done);
+  });
+
+  afterEach(() => {
+    gon.current_user_id = originalUserId;
+    vm.$destroy();
+  });
+
+  describe('template', () => {
+    it('renders component container element with classes `block` & `todo` when `isUserSignedIn` & `sidebarCollapsed` is `true`', done => {
+      vm.sidebarCollapsed = true;
+
+      vm.$nextTick()
+        .then(() => {
+          expect(vm.$el.classList.contains('block')).toBe(true);
+          expect(vm.$el.classList.contains('todo')).toBe(true);
+        })
+        .then(done)
+        .catch(done.fail);
+    });
+
+    it('renders Todo toggle button element', () => {
+      const buttonEl = vm.$el.querySelector('button.btn-todo');
+
+      expect(buttonEl).not.toBeNull();
+      expect(buttonEl.dataset.issuableId).toBe('1');
+      expect(buttonEl.dataset.issuableType).toBe('epic');
+    });
+  });
+});

ee/spec/javascripts/epic/store/actions_spec.js

@@ -15,7 +15,7 @@ describe('Epic Store Actions', () => {
   let state;
 
   beforeEach(() => {
-    state = Object.assign({}, defaultState);
+    state = Object.assign({}, defaultState());
   });
 
   describe('setEpicMeta', () => {
@@ -247,4 +247,207 @@ describe('Epic Store Actions', () => {
       );
     });
   });
+
+  describe('requestEpicTodoToggle', () => {
+    it('should set `state.epicTodoToggleInProgress` flag to `true`', done => {
+      testAction(
+        actions.requestEpicTodoToggle,
+        {},
+        state,
+        [{ type: 'REQUEST_EPIC_TODO_TOGGLE' }],
+        [],
+        done,
+      );
+    });
+  });
+
+  describe('requestEpicTodoToggleSuccess', () => {
+    it('should set epic state type', done => {
+      testAction(
+        actions.requestEpicTodoToggleSuccess,
+        { todoDeletePath: '/foo/bar' },
+        state,
+        [{ type: 'REQUEST_EPIC_TODO_TOGGLE_SUCCESS', payload: { todoDeletePath: '/foo/bar' } }],
+        [],
+        done,
+      );
+    });
+  });
+
+  describe('requestEpicTodoToggleFailure', () => {
+    beforeEach(() => {
+      setFixtures('<div class="flash-container"></div>');
+    });
+
+    it('Should set `state.epicTodoToggleInProgress` flag to `false`', done => {
+      testAction(
+        actions.requestEpicTodoToggleFailure,
+        {},
+        state,
+        [{ type: 'REQUEST_EPIC_TODO_TOGGLE_FAILURE', payload: {} }],
+        [],
+        done,
+      );
+    });
+
+    it('Should show flash error with message "There was an error deleting the todo." when `state.todoExists` is `true`', done => {
+      actions.requestEpicTodoToggleFailure(
+        {
+          commit: () => {},
+          state: { todoExists: true },
+        },
+        {},
+      );
+
+      Vue.nextTick()
+        .then(() => {
+          expect(document.querySelector('.flash-container .flash-text').innerText.trim()).toBe(
+            'There was an error deleting the todo.',
+          );
+        })
+        .then(done)
+        .catch(done.fail);
+    });
+
+    it('Should show flash error with message "There was an error adding a todo." when `state.todoExists` is `false`', done => {
+      actions.requestEpicTodoToggleFailure(
+        {
+          commit: () => {},
+          state: { todoExists: false },
+        },
+        {},
+      );
+
+      Vue.nextTick()
+        .then(() => {
+          expect(document.querySelector('.flash-container .flash-text').innerText.trim()).toBe(
+            'There was an error adding a todo.',
+          );
+        })
+        .then(done)
+        .catch(done.fail);
+    });
+  });
+
+  describe('triggerTodoToggleEvent', () => {
+    it('Calls `triggerDocumentEvent` with event `todo:toggle` and passes `count` as param', () => {
+      spyOn(epicUtils, 'triggerDocumentEvent').and.returnValue(false);
+
+      const data = { count: 5 };
+      actions.triggerTodoToggleEvent({}, data);
+
+      expect(epicUtils.triggerDocumentEvent).toHaveBeenCalledWith('todo:toggle', data.count);
+    });
+  });
+
+  describe('toggleTodo', () => {
+    let mock;
+
+    beforeEach(() => {
+      mock = new MockAdapter(axios);
+    });
+
+    afterEach(() => {
+      mock.restore();
+    });
+
+    describe('when `state.togoExists` is false', () => {
+      it('dispatches requestEpicTodoToggle, triggerTodoToggleEvent and requestEpicTodoToggleSuccess when request is successful', done => {
+        mock.onPost(/(.*)/).replyOnce(200, {
+          count: 5,
+          delete_path: '/foo/bar',
+        });
+
+        testAction(
+          actions.toggleTodo,
+          null,
+          { todoExists: false },
+          [],
+          [
+            {
+              type: 'requestEpicTodoToggle',
+            },
+            {
+              type: 'triggerTodoToggleEvent',
+              payload: { count: 5 },
+            },
+            {
+              type: 'requestEpicTodoToggleSuccess',
+              payload: { todoDeletePath: '/foo/bar' },
+            },
+          ],
+          done,
+        );
+      });
+
+      it('dispatches requestEpicTodoToggle and requestEpicTodoToggleFailure when request fails', done => {
+        mock.onPost(/(.*)/).replyOnce(500, {});
+
+        testAction(
+          actions.toggleTodo,
+          null,
+          { todoExists: false },
+          [],
+          [
+            {
+              type: 'requestEpicTodoToggle',
+            },
+            {
+              type: 'requestEpicTodoToggleFailure',
+            },
+          ],
+          done,
+        );
+      });
+    });
+
+    describe('when `state.togoExists` is true', () => {
+      it('dispatches requestEpicTodoToggle, triggerTodoToggleEvent and requestEpicTodoToggleSuccess when request is successful', done => {
+        mock.onDelete(/(.*)/).replyOnce(200, {
+          count: 5,
+        });
+
+        testAction(
+          actions.toggleTodo,
+          null,
+          { todoExists: true },
+          [],
+          [
+            {
+              type: 'requestEpicTodoToggle',
+            },
+            {
+              type: 'triggerTodoToggleEvent',
+              payload: { count: 5 },
+            },
+            {
+              type: 'requestEpicTodoToggleSuccess',
+              payload: { todoDeletePath: undefined },
+            },
+          ],
+          done,
+        );
+      });
+
+      it('dispatches requestEpicTodoToggle and requestEpicTodoToggleFailure when request fails', done => {
+        mock.onDelete(/(.*)/).replyOnce(500, {});
+
+        testAction(
+          actions.toggleTodo,
+          null,
+          { todoExists: true },
+          [],
+          [
+            {
+              type: 'requestEpicTodoToggle',
+            },
+            {
+              type: 'requestEpicTodoToggleFailure',
+            },
+          ],
+          done,
+        );
+      });
+    });
+  });
 });

ee/spec/javascripts/epic/store/mutationts_spec.js

@@ -62,4 +62,59 @@ describe('Epic Store Mutations', () => {
       expect(state.sidebarCollapsed).toBe(sidebarCollapsed);
     });
   });
+
+  describe('REQUEST_EPIC_TODO_TOGGLE', () => {
+    it('Should set `epicTodoToggleInProgress` flag on state as `true`', () => {
+      const state = {
+        epicTodoToggleInProgress: false,
+      };
+
+      mutations[types.REQUEST_EPIC_TODO_TOGGLE](state);
+
+      expect(state.epicTodoToggleInProgress).toBe(true);
+    });
+  });
+
+  describe('REQUEST_EPIC_TODO_TOGGLE_SUCCESS', () => {
+    it('Should set `todoDeletePath` value on state with provided value of `todoDeletePath` param', () => {
+      const todoDeletePath = '/foo/bar';
+      const state = {};
+
+      mutations[types.REQUEST_EPIC_TODO_TOGGLE_SUCCESS](state, { todoDeletePath });
+
+      expect(state.todoDeletePath).toBe(todoDeletePath);
+    });
+
+    it('Should toggle value of `todoExists` value on state', () => {
+      const state = {
+        todoExists: true,
+      };
+
+      mutations[types.REQUEST_EPIC_TODO_TOGGLE_SUCCESS](state, {});
+
+      expect(state.todoExists).toBe(false);
+    });
+
+    it('Should set `epicTodoToggleInProgress` flag on state as `false`', () => {
+      const state = {
+        epicTodoToggleInProgress: true,
+      };
+
+      mutations[types.REQUEST_EPIC_TODO_TOGGLE_SUCCESS](state, {});
+
+      expect(state.epicTodoToggleInProgress).toBe(false);
+    });
+  });
+
+  describe('REQUEST_EPIC_TODO_TOGGLE_FAILURE', () => {
+    it('Should set `epicTodoToggleInProgress` flag on state as `false`', () => {
+      const state = {
+        epicTodoToggleInProgress: true,
+      };
+
+      mutations[types.REQUEST_EPIC_TODO_TOGGLE_FAILURE](state);
+
+      expect(state.epicTodoToggleInProgress).toBe(false);
+    });
+  });
 });