From 55c13270a2611026559c291deb424ce624a4d65c Mon Sep 17 00:00:00 2001
From: Stepan Usatiuk <stepanusatiuk@gmail.com>
Date: Fri, 30 Aug 2019 22:22:45 +0200
Subject: [PATCH] move local document state to redux

---
 frontend/src/Documents/DocumentEdit.tsx       | 65 ++++++-------------
 .../src/Documents/tests/DocumentEdit.test.tsx | 57 +++++++++-------
 frontend/src/Home/Home.tsx                    |  4 +-
 frontend/src/Home/tests/Home.test.tsx         |  1 +
 frontend/src/redux/docs/actions.ts            | 22 ++++++-
 frontend/src/redux/docs/reducer.ts            | 32 ++++++++-
 6 files changed, 109 insertions(+), 72 deletions(-)

diff --git a/frontend/src/Documents/DocumentEdit.tsx b/frontend/src/Documents/DocumentEdit.tsx
index 38c0e62..a904699 100644
--- a/frontend/src/Documents/DocumentEdit.tsx
+++ b/frontend/src/Documents/DocumentEdit.tsx
@@ -12,12 +12,14 @@ import {
     deleteDocCancel,
     deleteDocStart,
     fetchDocsStart,
+    updateDoc,
     uploadDocStart,
 } from "~redux/docs/actions";
+import { IDocumentEntry } from "~redux/docs/reducer";
 import { IAppState } from "~redux/reducers";
 
 export interface IDocumentEditComponentProps extends RouteComponentProps {
-    allDocs: { [key: number]: IDocumentJSON };
+    allDocs: { [key: number]: IDocumentEntry };
 
     fetching: boolean;
     spinner: boolean;
@@ -26,32 +28,17 @@ export interface IDocumentEditComponentProps extends RouteComponentProps {
     deleteDoc: (id: number) => void;
     cancelDelete: () => void;
     uploadDoc: (id: number, name: string, content: string) => void;
+    updateDoc: (id: number, name: string, content: string) => void;
 }
 
 export interface IDocumentEditComponentState {
     loaded: boolean;
-
     id: number | null;
-    name: string | null;
-    content: string | null;
-
-    savedName: string | null;
-    savedContent: string | null;
-
-    dirty: boolean;
 }
 
 const defaultDocumentEditComponentState: IDocumentEditComponentState = {
     loaded: false,
-
     id: null,
-    name: null,
-    content: null,
-
-    savedName: null,
-    savedContent: null,
-
-    dirty: false,
 };
 
 export class DocumentEditComponent extends React.PureComponent<
@@ -71,6 +58,8 @@ export class DocumentEditComponent extends React.PureComponent<
 
     public render() {
         if (this.state.loaded) {
+            const doc = this.props.allDocs[this.state.id];
+
             return (
                 <div className="document">
                     <div className="documentHeader">
@@ -78,7 +67,7 @@ export class DocumentEditComponent extends React.PureComponent<
                             className={Classes.INPUT}
                             onChange={this.handleInputChange}
                             name="name"
-                            value={this.state.name}
+                            value={doc.name}
                             onKeyPress={this.handleNameKeyPress}
                         />
                         <div className="buttons">
@@ -99,7 +88,7 @@ export class DocumentEditComponent extends React.PureComponent<
                     <TextArea
                         onChange={this.handleInputChange}
                         name="content"
-                        value={this.state.content}
+                        value={doc.content}
                     />
                 </div>
             );
@@ -109,16 +98,9 @@ export class DocumentEditComponent extends React.PureComponent<
     }
 
     public upload() {
-        this.props.uploadDoc(
-            this.state.id,
-            this.state.name,
-            this.state.content,
-        );
-        this.setState({
-            savedName: this.state.name,
-            savedContent: this.state.content,
-            dirty: false,
-        } as any);
+        const doc = this.props.allDocs[this.state.id];
+        console.log("upload");
+        this.props.uploadDoc(this.state.id, doc.name, doc.content);
     }
 
     public remove() {
@@ -147,22 +129,15 @@ export class DocumentEditComponent extends React.PureComponent<
         const value = target.value;
         const name = target.name;
 
-        const { savedName, savedContent } = this.state;
+        const doc = this.props.allDocs[this.state.id];
 
         const updDoc: { [key: string]: string } = {
-            name: this.state.name,
-            content: this.state.content,
+            name: doc.name,
+            content: doc.content,
         };
-
         updDoc[name] = value;
 
-        const dirty =
-            savedName !== updDoc.name || savedContent !== updDoc.content;
-
-        this.setState({
-            [name]: value,
-            dirty,
-        } as any);
+        this.props.updateDoc(this.state.id, updDoc.name, updDoc.content);
     }
 
     public componentDidUpdate() {
@@ -179,7 +154,9 @@ export class DocumentEditComponent extends React.PureComponent<
     }
 
     public onUnload(e: BeforeUnloadEvent) {
-        if (this.state.dirty) {
+        const doc = this.props.allDocs[this.state.id];
+
+        if (doc.dirty) {
             e.preventDefault();
             e.returnValue = "";
         }
@@ -201,10 +178,6 @@ export class DocumentEditComponent extends React.PureComponent<
                     ...this.state,
                     loaded: true,
                     id: doc.id,
-                    name: doc.name,
-                    content: doc.content,
-                    savedContent: doc.content,
-                    savedName: doc.name,
                 });
             }
         }
@@ -226,6 +199,8 @@ function mapDispatchToProps(dispatch: Dispatch) {
         deleteDoc: (id: number) => dispatch(deleteDocStart(id)),
         uploadDoc: (id: number, name: string, content: string) =>
             dispatch(uploadDocStart(id, name, content)),
+        updateDoc: (id: number, name: string, content: string) =>
+            dispatch(updateDoc(id, name, content)),
     };
 }
 
diff --git a/frontend/src/Documents/tests/DocumentEdit.test.tsx b/frontend/src/Documents/tests/DocumentEdit.test.tsx
index 38bbd3c..88f18a3 100644
--- a/frontend/src/Documents/tests/DocumentEdit.test.tsx
+++ b/frontend/src/Documents/tests/DocumentEdit.test.tsx
@@ -1,20 +1,42 @@
 import { mount } from "enzyme";
 import * as React from "react";
 
+import { IDocumentEntry } from "~redux/docs/reducer";
+import { IDocumentJSON } from "../../../../src/entity/Document";
 import { DocumentEditComponent } from "../DocumentEdit";
 
 const mock: any = jest.fn();
 
 const onUnloadSpy = jest.spyOn(DocumentEditComponent.prototype, "onUnload");
 
-const testDoc = {
+const testDoc: IDocumentJSON = {
+    name: "not changed",
+    content: "not changed",
+    id: 1,
+    user: 1,
+    createdAt: 0,
+    editedAt: 0,
+};
+
+const testDocsChanged: { [key: number]: IDocumentEntry } = {
     1: {
-        name: "not changed",
-        content: "not changed",
-        id: 1,
-        user: 1,
-        createdAt: 0,
-        editedAt: 0,
+        ...testDoc,
+        name: "changed",
+        content: "changed",
+        remote: {
+            ...testDoc,
+        },
+        dirty: true,
+    },
+};
+
+const testDocsNotChanged: { [key: number]: IDocumentEntry } = {
+    1: {
+        ...testDoc,
+        remote: {
+            ...testDoc,
+        },
+        dirty: false,
     },
 };
 
@@ -32,25 +54,20 @@ describe("<DocumentEdit />", () => {
 
         const wrapper = mount(
             <DocumentEditComponent
-                allDocs={testDoc}
+                allDocs={testDocsChanged}
                 fetching={false}
                 spinner={false}
                 fetchDocs={mock}
                 cancelDelete={mock}
                 deleteDoc={mock}
                 uploadDoc={mock}
+                updateDoc={mock}
                 history={mock}
                 location={mock}
                 match={{ params: { id: 1 } } as any}
             />,
         );
 
-        const content = wrapper.find("textarea");
-        expect(content).toHaveLength(1);
-        (content.instance() as any).value = "changed";
-
-        content.simulate("change");
-
         const preventDefault = jest.fn();
         const event = { preventDefault };
         map.beforeunload(event);
@@ -67,28 +84,20 @@ describe("<DocumentEdit />", () => {
 
         const wrapper = mount(
             <DocumentEditComponent
-                allDocs={testDoc}
+                allDocs={testDocsNotChanged}
                 fetching={false}
                 spinner={false}
                 fetchDocs={mock}
                 cancelDelete={mock}
                 deleteDoc={mock}
                 uploadDoc={mock}
+                updateDoc={mock}
                 history={mock}
                 location={mock}
                 match={{ params: { id: 1 } } as any}
             />,
         );
 
-        const content = wrapper.find("textarea");
-        expect(content).toHaveLength(1);
-
-        (content.instance() as any).value = "changed";
-        content.simulate("change");
-
-        (content.instance() as any).value = "not changed";
-        content.simulate("change");
-
         const preventDefault = jest.fn();
         const event = { preventDefault };
         map.beforeunload(event);
diff --git a/frontend/src/Home/Home.tsx b/frontend/src/Home/Home.tsx
index 31f79c2..b8cee68 100644
--- a/frontend/src/Home/Home.tsx
+++ b/frontend/src/Home/Home.tsx
@@ -32,6 +32,7 @@ export interface IHomeProps extends RouteComponentProps {
 
     fetching: boolean;
     uploading: boolean;
+    dirty: boolean;
 
     darkMode: boolean;
 
@@ -78,7 +79,7 @@ export class HomeComponent extends React.PureComponent<IHomeProps> {
                         </Navbar.Group>
                         <Navbar.Group align={Alignment.RIGHT}>
                             <Button id="uploadingStatusButton">
-                                {this.props.uploading ? (
+                                {this.props.uploading || this.props.dirty ? (
                                     <Spinner size={20} />
                                 ) : (
                                     <Icon icon="saved" />
@@ -175,6 +176,7 @@ function mapStateToProps(state: IAppState) {
         darkMode: state.localSettings.darkMode,
         fetching: state.docs.fetching,
         uploading: state.docs.uploading,
+        dirty: state.docs.dirty,
     };
 }
 
diff --git a/frontend/src/Home/tests/Home.test.tsx b/frontend/src/Home/tests/Home.test.tsx
index 696b7b6..8addb84 100644
--- a/frontend/src/Home/tests/Home.test.tsx
+++ b/frontend/src/Home/tests/Home.test.tsx
@@ -10,6 +10,7 @@ const defaultHomeProps: IHomeProps = {
 
     fetching: false,
     uploading: false,
+    dirty: false,
 
     darkMode: false,
 
diff --git a/frontend/src/redux/docs/actions.ts b/frontend/src/redux/docs/actions.ts
index 10337bd..dfea319 100644
--- a/frontend/src/redux/docs/actions.ts
+++ b/frontend/src/redux/docs/actions.ts
@@ -21,6 +21,8 @@ export enum DocsTypes {
     DOC_UPLOAD_SUCCESS = "DOC_UPLOAD_SUCCESS",
 
     DOCS_SHOW_SPINNER = "DOCS_SHOW_SPINNER",
+
+    DOC_UPDATE = "DOC_UPDATE",
 }
 
 export interface IDocsShowSpinnerAction extends Action {
@@ -177,6 +179,23 @@ export function uploadDocSuccess(doc: IDocumentJSON): IDocUploadSuccessAction {
     return { type: DocsTypes.DOC_UPLOAD_SUCCESS, payload: { doc } };
 }
 
+export interface IDocUpdateAction extends Action {
+    type: DocsTypes.DOC_UPDATE;
+    payload: {
+        id: number;
+        name: string;
+        content: string;
+    };
+}
+
+export function updateDoc(
+    id: number,
+    name: string,
+    content: string,
+): IDocUpdateAction {
+    return { type: DocsTypes.DOC_UPDATE, payload: { id, name, content } };
+}
+
 export type DocsAction =
     | IDocsFetchStartAction
     | IDocsFetchFailAction
@@ -192,4 +211,5 @@ export type DocsAction =
     | IDocDeleteCancelAction
     | IDocUploadFailAction
     | IDocUploadStartAction
-    | IDocUploadSuccessAction;
+    | IDocUploadSuccessAction
+    | IDocUpdateAction;
diff --git a/frontend/src/redux/docs/reducer.ts b/frontend/src/redux/docs/reducer.ts
index ac6bbda..94f44ef 100644
--- a/frontend/src/redux/docs/reducer.ts
+++ b/frontend/src/redux/docs/reducer.ts
@@ -11,6 +11,8 @@ export interface IDocumentEntry extends IDocumentJSON {
 
 export interface IDocsState {
     all: { [key: number]: IDocumentEntry };
+    dirty: boolean;
+
     fetching: boolean;
     uploading: boolean;
     error: string | null;
@@ -23,6 +25,7 @@ export interface IDocsState {
 
 const defaultDocsState: IDocsState = {
     all: null,
+    dirty: false,
     fetching: false,
     uploading: false,
     error: null,
@@ -81,12 +84,39 @@ export const docsReducer: Reducer<IDocsState, DocsAction> = (
             const all = { ...state.all };
             const doc = action.payload.doc;
             all[doc.id] = { ...doc, remote: doc, dirty: false };
-            return { ...state, all, uploading: false };
+            return { ...state, all, uploading: false, dirty: false };
         }
         case DocsTypes.DOCS_FETCH_FAIL:
             return { ...defaultDocsState, ...action.payload };
         case UserTypes.USER_LOGOUT:
             return defaultDocsState;
+        case DocsTypes.DOC_UPDATE: {
+            const all = { ...state.all };
+            let dirty = state.dirty;
+            const { payload } = action;
+            const doc = all[payload.id];
+            const remote = doc.remote;
+            if (
+                payload.content !== remote.content ||
+                payload.name !== remote.name
+            ) {
+                all[payload.id] = {
+                    ...doc,
+                    content: payload.content,
+                    name: payload.name,
+                    dirty: true,
+                };
+                dirty = true;
+            } else {
+                all[payload.id] = {
+                    ...doc,
+                    content: payload.content,
+                    name: payload.name,
+                    dirty: false,
+                };
+            }
+            return { ...state, all, dirty };
+        }
         default:
             return state;
             break;