Resolve various ESLint-reported issues, add some FIXME notes

src/components/Login.js

@@ -1,11 +1,8 @@
 'use strict';
 const React = require('react');
-const ReactDOM = require('react-dom');
 const create = require('create-react-class');
 const Promise = require('bluebird');
 const urllib = require('url');
-const debounce = require('debounce');
-const defaultValue = require('default-value');
 
 let login = create({
 	displayName: "Login",
@@ -156,6 +153,7 @@ let login = create({
 });
 
 function getApiServer(hostname) {
+	/* FIXME: Promise.try */
 	return new Promise((resolve, reject) => {
 		console.log("Checking for api server from mxid", urllib.format(hostname));
 		checkApi(hostname).then(() => {
@@ -167,8 +165,9 @@ function getApiServer(hostname) {
 			tryWellKnown(hostname).then((hostname) => {
 				console.log("got .well-known host", hostname);
 				resolve(hostname);
-			}).catch((err) => {
+			}).catch((_err) => {
-				reject("Fatal error trying to get API host");
+				/* FIXME: Error chaining */
+				reject(new Error("Fatal error trying to get API host"));
 			});
 		});
 	});
@@ -180,7 +179,8 @@ function checkApi(host) {
 		fetch(versionUrl).then((response) => {
 			if (response.status != 200) {
 				console.log("Invalid homeserver url", versionUrl);
-				return reject();
+				/* FIXME: Error types */
+				return reject(new Error("Invalid homeserver URL"));
 			}
 			resolve();
 		}).catch((err) => {
@@ -199,11 +199,12 @@ function tryWellKnown(host) {
 			.then((response) => {
 				if (response.status != 200) {
 					console.log("no well-known in use");
-					reject("No homeserver found");
+					reject(new Error("No homeserver found"));
 				}
 				return response;
-			}).catch((error) => {
+			}).catch((_error) => {
-				reject("can't fetch .well-known");
+				/* FIXME: Error chaining */
+				reject(new Error("can't fetch .well-known"));
 			})
 			.then((response) => response.json())
 			.then((json) => {
@@ -214,7 +215,8 @@ function tryWellKnown(host) {
 			})
 			.catch((err) => {
 				console.log("Error in json", err);
-				reject("Error while parsing .well-known");
+				/* FIXME: Error chaining */
+				reject(new Error("Error while parsing .well-known"));
 			});
 	});
 }

src/components/chat.js

@@ -1,12 +1,7 @@
 'use strict';
 const React = require('react');
-const ReactDOM = require('react-dom');
 const create = require('create-react-class');
-const Promise = require('bluebird');
-const debounce = require('debounce');
 const jdenticon = require('jdenticon');
-const defaultValue = require('default-value');
-const sdk = require('matrix-js-sdk');
 const sanitize = require('sanitize-html');
 
 const Event = require('./events/Event.js');
@@ -73,7 +68,7 @@ let chat = create({
 		};
 	},
 
-	getSnapshotBeforeUpdate: function(oldProps, oldState) {
+	getSnapshotBeforeUpdate: function(_oldProps, _oldState) {
 		let ref = this.state.ref;
 		if (ref == null) {return null;}
 		if ((ref.scrollHeight - ref.offsetHeight) - ref.scrollTop < 100) { // Less than 100px from bottom
@@ -161,7 +156,7 @@ let chat = create({
 			});
 			messageGroups.groups.push(messageGroups.current);
 
-			events = messageGroups.groups.map((events, id) => {
+			events = messageGroups.groups.map((events) => {
 				return <EventGroup key={`${this.props.roomId}-${events[0].event_id}`} events={events} client={this.props.client} room={room} onReplyClick={this.onReplyClick}/>;
 			});
 		}

src/components/events/Event.js

@@ -1,6 +1,5 @@
 'use strict';
 const React = require('react');
-const ReactDOM = require('react-dom');
 const create = require('create-react-class');
 const defaultValue = require('default-value');
 
@@ -32,7 +31,7 @@ let Event = create({
 
 		if (event.type == "m.room.message") {
 			let msgtype = event.content.msgtype;
-			let formattedEvent = parseEvent(event);
+			let formattedEvent = parseEvent(event); /* FIXME: Specify context */
 
 			let parsedReply = formattedEvent.parsedReply;
 			if (parsedReply.isReply) {
@@ -44,7 +43,7 @@ let Event = create({
 					// fall back on <mx-reply> content?
 				} else {
 					repliedUser = this.props.client.getUser(repliedEvent.event.sender);
-					shortText = parseEvent(repliedEvent.event);
+					shortText = parseEvent(repliedEvent.event); /* FIXME: Specify context */
 					if (shortText.html) {
 						shortText = <span dangerouslySetInnerHTML={{__html: shortText.body}}/>;
 					} else {
@@ -75,7 +74,7 @@ let Event = create({
 	}
 });
 
-function parseEvent(event, context) {
+function parseEvent(event, _context) {
 	// context can be either 'main' or 'reply'
 	let body = event.content.body;
 	let html = false;

src/components/events/image.js

@@ -1,14 +1,9 @@
 'use strict';
 const React = require('react');
-const ReactDOM = require('react-dom');
 const create = require('create-react-class');
-const Promise = require('bluebird');
-const defaultValue = require('default-value');
 
 const mediaLib = require('../../lib/media.js');
 
-const Text = require('./text.js');
-
 let Event = create({
 	displayName: "m.image",
 
@@ -20,10 +15,6 @@ let Event = create({
 		return mediaLib.parseEvent(this.props.client, event, 1000, 1000);
 	},
 
-	updateSize: function(e) {
-		console.log("image was loaded");
-	},
-
 	render: function() {
 		let event = this.props.event;
 

src/components/events/state.js

@@ -1,6 +1,5 @@
 'use strict';
 const React = require('react');
-const ReactDOM = require('react-dom');
 const create = require('create-react-class');
 
 let Event = create({

src/components/events/text.js

@@ -1,10 +1,6 @@
 'use strict';
 const React = require('react');
-const ReactDOM = require('react-dom');
 const create = require('create-react-class');
-const Promise = require('bluebird');
-
-const riot = require('../../lib/riot-utils.js');
 
 let Event = create({
 	displayName: "m.text",

src/components/events/user.js

@@ -1,6 +1,5 @@
 'use strict';
 const React = require('react');
-const ReactDOM = require('react-dom');
 const create = require('create-react-class');
 const jdenticon = require('jdenticon');
 

src/components/events/video.js

@@ -1,14 +1,9 @@
 'use strict';
 const React = require('react');
-const ReactDOM = require('react-dom');
 const create = require('create-react-class');
-const Promise = require('bluebird');
-const defaultValue = require('default-value');
 
 const mediaLib = require('../../lib/media.js');
 
-const Text = require('./text.js');
-
 let Event = create({
 	displayName: "m.video",
 

src/components/fileUpload.js

@@ -1,6 +1,5 @@
 'use strict';
 const React = require('react');
-const ReactDOM = require('react-dom');
 const create = require('create-react-class');
 
 let fileUpload = create({

src/components/filterList.js

@@ -1,8 +1,6 @@
 'use strict';
 const React = require('react');
-const ReactDOM = require('react-dom');
 const create = require('create-react-class');
-const Promise = require('bluebird');
 const debounce = require('debounce');
 
 let FilterList = create({
@@ -39,7 +37,7 @@ let FilterList = create({
 
 	render: function() {
 		let keys = Object.keys(this.props.items);
-		let items = keys.map((itemKey, id) => {
+		let items = keys.map((itemKey) => {
 			let item = this.props.items[itemKey];
 			let props = {
 				selected:   this.state.selection == itemKey,

src/components/info.js

@@ -1,8 +1,6 @@
 'use strict';
 const React = require('react');
-const ReactDOM = require('react-dom');
 const create = require('create-react-class');
-const Promise = require('bluebird');
 
 let info = create({
 	displayName: "Info",

src/components/input.js

@@ -1,6 +1,5 @@
 'use strict';
 const React = require('react');
-const ReactDOM = require('react-dom');
 const create = require('create-react-class');
 const Promise = require('bluebird');
 const colorConvert = require('color-convert');
@@ -108,6 +107,7 @@ let input = create({
 			let additionalPromise;
 			if (mimeType.startsWith("image/") || mimeType.startsWith("video/")) {
 				function elementToThumbnail(element) {
+					/* FIXME: Get rid of `new Promise`, replace with Promise.try */
 					return new Promise((resolve, reject) => {
 						riot.createThumbnail(element,
 							element.width,
@@ -116,7 +116,7 @@ let input = create({
 						)
 							.catch((error) => {
 								console.error("neo: error getting thumbnail", error);
-								reject();
+								reject(error);
 							})
 							.then((thumbResult) => {
 								return client.uploadContent(thumbResult.thumbnail, {onlyContentUri: false});
@@ -174,7 +174,8 @@ let input = create({
 			msgtype: "m.text"
 		};
 		content = this.sendReply(content);
-		this.props.client.sendEvent(this.props.roomId, "m.room.message", content, (err, res) => {
+		/* FIXME: Promisify */
+		this.props.client.sendEvent(this.props.roomId, "m.room.message", content, (err, _res) => {
 			if (err != null) {
 				console.log(err);
 			}
@@ -191,7 +192,8 @@ let input = create({
 
 		content = this.sendReply(content);
 
-		this.props.client.sendEvent(this.props.roomId, "m.room.message", content, (err, res) => {
+		/* FIXME: Promisify */
+		this.props.client.sendEvent(this.props.roomId, "m.room.message", content, (err, _res) => {
 			console.log(err);
 		});
 	},

src/components/loading.js

@@ -1,6 +1,5 @@
 'use strict';
 const React = require('react');
-const ReactDOM = require('react-dom');
 const create = require('create-react-class');
 
 let Loading = create({

src/components/sidebar.js

@@ -1,9 +1,6 @@
 'use strict';
 const React = require('react');
-const ReactDOM = require('react-dom');
 const create = require('create-react-class');
-const Promise = require('bluebird');
-const debounce = require('debounce');
 const jdenticon = require('jdenticon');
 
 const FilterList = require('./filterList.js');

src/lib/media.js

@@ -1,3 +1,5 @@
+"use strict";
+
 // should be able to handle images, stickers, and video
 
 module.exports = {

tests/lib/media.js

@@ -1,3 +1,7 @@
+"use strict";
+
+/* global describe, it */
+
 let assert = require('assert');
 let urllib = require('url');
 let querystring = require('querystring');
@@ -5,7 +9,8 @@ let querystring = require('querystring');
 let mediaLib = require('../../lib/media.js');
 
 let client = {
-	mxcUrlToHttp: function(url, w, h, method, allowDirectLinks) {
+	/* FIXME: Verify whether allowDirectLinks is used / expected to do anything by other code */
+	mxcUrlToHttp: function(url, w, h, method, _allowDirectLinks) {
 		let hs = "https://chat.privacytools.io";
 		let mxc = url.slice(6);
 		if (w) {
@@ -56,7 +61,7 @@ describe('media', function() {
 				h: 1000,
 				method: 'scale'
 			});
-		}),
+		});
 		it('event without thumbnail', function() {
 			let mockEvent = JSON.parse(JSON.stringify(mockEventTemplate));
 			mockEvent.content.info.thumbnail_url = null;