Merge remote-tracking branch 'upstream/main' into modernization-and-refactor

server/scripts/modules/currentweatherscroll.mjs

@@ -18,6 +18,7 @@ let screenIndex = 0;
 let sinceLastUpdate = 0;
 let nextUpdate = DEFAULT_UPDATE;
 let resetFlag;
+let defaultScreensLoaded = true;
 
 // start drawing conditions
 // reset starts from the first item in the text scroll list
@@ -63,7 +64,7 @@ const incrementInterval = (force) => {
 		stop(display?.elemId === 'progress');
 		return;
 	}
-	screenIndex = (screenIndex + 1) % (lastScreen);
+	screenIndex = (screenIndex + 1) % (workingScreens.length);
 
 	// draw new text
 	drawScreen();
@@ -87,7 +88,7 @@ const drawScreen = async () => {
 	// if we have no current weather and no hazards, there's nothing to display
 	if (!data && (!scrollData.hazards || scrollData.hazards.length === 0)) return;
 
-	const thisScreen = screens[screenIndex](scrollData);
+	const thisScreen = workingScreens[screenIndex](scrollData);
 
 	// update classes on the scroll area
 	elemForEach('.weather-display .scroll', (elem) => {
@@ -136,8 +137,10 @@ const hazards = (data) => {
 	};
 };
 
+// additional screens are stored in a separate for simple clearing/resettings
+let additionalScreens = [];
 // the "screens" are stored in an array for easy addition and removal
-const screens = [
+const baseScreens = [
 	// hazards
 	hazards,
 	// station name
@@ -179,6 +182,9 @@ const screens = [
 	},
 ];
 
+// working screens are the combination of base screens (when active) and additional screens
+let workingScreens = [...baseScreens, ...additionalScreens];
+
 // internal draw function with preset parameters
 const drawCondition = (text) => {
 	// update all html scroll elements
@@ -194,19 +200,18 @@ const setHeader = (text) => {
 	});
 };
 
-// store the original number of screens
-const originalScreens = screens.length;
-let lastScreen = originalScreens;
-
-// reset the number of screens
+// reset the screens back to the original set
 const reset = () => {
-	lastScreen = originalScreens;
+	workingScreens = [...baseScreens];
+	additionalScreens = [];
+	defaultScreensLoaded = true;
 };
 
-// add screen
-const addScreen = (screen) => {
-	screens.push(screen);
-	lastScreen += 1;
+// add screen, keepBase keeps the regular weather crawl
+const addScreen = (screen, keepBase = true) => {
+	defaultScreensLoaded = false;
+	additionalScreens.push(screen);
+	workingScreens = [...(keepBase ? baseScreens : []), ...additionalScreens];
 };
 
 const drawScrollCondition = (screen) => {
@@ -259,6 +264,9 @@ const parseMessage = (event) => {
 	}
 };
 
+const screenCount = () => workingScreens.length;
+const atDefault = () => defaultScreensLoaded;
+
 // add event listener for start message
 window.addEventListener('message', parseMessage);
 
@@ -266,10 +274,14 @@ window.CurrentWeatherScroll = {
 	addScreen,
 	reset,
 	start,
+	screenCount,
+	atDefault,
 };
 
 export {
 	addScreen,
 	reset,
 	start,
+	screenCount,
+	atDefault,
 };

server/scripts/modules/custom-rss-feed.mjs

@@ -0,0 +1,130 @@
+import Setting from './utils/setting.mjs';
+import { reset as resetScroll, addScreen as addScroll } from './currentweatherscroll.mjs';
+import { json } from './utils/fetch.mjs';
+
+let firstRun = true;
+
+const parser = new DOMParser();
+
+// change of enable handler
+const changeEnable = (newValue) => {
+	let newDisplay;
+	if (newValue) {
+		// add the feed to the scroll
+		parseFeed(customFeed.value);
+		// show the string box
+		newDisplay = 'block';
+	} else {
+		// set scroll back to original
+		resetScroll();
+		// hide the string entry
+		newDisplay = 'none';
+	}
+	const stringEntry = document.getElementById('settings-customFeed-label');
+	if (stringEntry) {
+		stringEntry.style.display = newDisplay;
+	}
+};
+
+// parse the feed/text provided
+const parseFeed = (textInput) => {
+	// skip getting the feed on first run
+	if (firstRun) return;
+
+	// test validity
+	if (textInput === undefined || textInput === '') {
+		resetScroll();
+	}
+
+	// test for url
+	if (textInput.match(/https?:\/\//)) {
+		getFeed(textInput);
+		return;
+	}
+
+	// add single text scroll
+	resetScroll();
+	addScroll(
+		() => (
+			{
+				type: 'scroll',
+				text: textInput,
+			}),
+		// keep the existing scroll
+		true,
+	);
+};
+
+// get the rss feed and then swap out the current weather scroll
+const getFeed = async (url) => {
+	// get the text as a string
+	// it needs to be proxied, use a free service
+	const rssResponse = await json(`https://api.allorigins.win/get?url=${url}`);
+
+	// this returns a data url
+	// a few sanity checks
+	if (rssResponse.status.content_type.indexOf('xml') < 0) return;
+	if (rssResponse.contents.indexOf('base64') > 100) return;
+	// base 64 decode everything after the comma
+	const rss = atob(rssResponse.contents.split('base64,')[1]);
+
+	// parse the rss
+	const doc = parser.parseFromString(rss, 'text/xml');
+
+	// get the title
+	const rssTitle = doc.querySelector('channel title').textContent;
+
+	// get each item
+	const titles = [...doc.querySelectorAll('item title')].map((t) => t.textContent);
+
+	// reset the scroll, then add the screens
+	resetScroll();
+	titles.forEach((title) => {
+		// data is provided to the screen handler, so we return a function
+		addScroll(
+			() => ({
+				header: rssTitle,
+				type: 'scroll',
+				text: title,
+			}),
+			// false parameter does not include the default weather scrolls
+			false,
+		);
+	});
+};
+
+// change the feed source and re-load if necessary
+const changeFeed = (newValue) => {
+	// first pass through won't have custom feed enable ready
+	if (firstRun) return;
+
+	if (customFeedEnable.value) {
+		parseFeed(newValue);
+	}
+};
+
+const customFeed = new Setting('customFeed', {
+	name: 'Custom RSS Feed',
+	defaultValue: '',
+	type: 'string',
+	changeAction: changeFeed,
+	placeholder: 'Text or URL',
+});
+
+const customFeedEnable = new Setting('customFeedEnable', {
+	name: 'Enable RSS Feed/Text',
+	defaultValue: false,
+	changeAction: changeEnable,
+});
+
+// initialize the custom feed inputs on the page
+document.addEventListener('DOMContentLoaded', () => {
+	// add the controls to the page
+	const settingsSection = document.querySelector('#settings');
+	settingsSection.append(customFeedEnable.generate(), customFeed.generate());
+	// clear the first run value
+	firstRun = false;
+	// call change enable with the current value to show/hide the url box
+	// and make the call to get the feed if enabled
+	changeEnable(customFeedEnable.value);
+});

server/scripts/modules/utils/setting.mjs

@@ -12,6 +12,7 @@ const DEFAULTS = {
 	stickyRead: false,
 	values: [],
 	visible: true,
+	placeholder: '',
 };
 
 class Setting {
@@ -33,6 +34,7 @@ class Setting {
 		this.values = options.values;
 		this.visible = options.visible;
 		this.changeAction = options.changeAction;
+		this.placeholder = options.placeholder;
 
 		// get value from url
 		const urlValue = parseQueryString()?.[`settings-${shortName}-${this.type}`];
@@ -50,6 +52,9 @@ class Setting {
 			// couldn't parse as a float, store as a string
 			urlState = urlValue;
 		}
+		if (this.type === 'string' && urlValue !== undefined) {
+			urlState = urlValue;
+		}
 
 		// get existing value if present
 		const storedValue = urlState ?? this.getFromLocalStorage();
@@ -62,6 +67,9 @@ class Setting {
 			case 'select':
 				this.selectChange({ target: { value: this.myValue } });
 				break;
+			case 'string':
+				this.stringChange({ target: { value: this.myValue } });
+				break;
 			case 'checkbox':
 			default:
 				this.checkboxChange({ target: { checked: this.myValue } });
@@ -126,6 +134,34 @@ class Setting {
 		return label;
 	}
 
+	generateString() {
+		// create a string input and accompanying set button
+		const label = document.createElement('label');
+		label.for = `settings-${this.shortName}-string`;
+		label.id = `settings-${this.shortName}-label`;
+		// text input box
+		const textInput = document.createElement('input');
+		textInput.type = 'text';
+		textInput.value = this.myValue;
+		textInput.id = `settings-${this.shortName}-string`;
+		textInput.name = `settings-${this.shortName}-string`;
+		textInput.placeholder = this.placeholder;
+		// set button
+		const setButton = document.createElement('input');
+		setButton.type = 'button';
+		setButton.value = 'Set';
+		setButton.id = `settings-${this.shortName}-button`;
+		setButton.name = `settings-${this.shortName}-button`;
+		setButton.addEventListener('click', () => {
+			this.stringChange({ target: { value: textInput.value } });
+		});
+		// assemble
+		label.append(textInput, setButton);
+
+		this.element = label;
+		return label;
+	}
+
 	checkboxChange(e) {
 		// update the state
 		this.myValue = e.target.checked;
@@ -148,6 +184,15 @@ class Setting {
 		this.changeAction(this.myValue);
 	}
 
+	stringChange(e) {
+		// update the value
+		this.myValue = e.target.value;
+		this.storeToLocalStorage(this.myValue);
+
+		// call the change action
+		this.changeAction(this.myValue);
+	}
+
 	storeToLocalStorage(value) {
 		if (!this.sticky) return;
 		const allSettingsString = localStorage?.getItem(SETTINGS_KEY) ?? '{}';
@@ -179,8 +224,8 @@ class Setting {
 					switch (this.type) {
 						case 'boolean':
 						case 'checkbox':
-							return storedValue;
 						case 'select':
+						case 'string':
 							return storedValue;
 						default:
 							return null;
@@ -231,6 +276,8 @@ class Setting {
 		switch (this.type) {
 			case 'select':
 				return this.generateSelect();
+			case 'string':
+				return this.generateString();
 			case 'checkbox':
 			default:
 				return this.generateCheckbox();