package-lock.json

@@ -11771,6 +11771,11 @@
             "integrity": "sha1-PpNdfd1zYxuXZZlW1VEo6HtQhKM=",
             "dev": true
         },
+        "spacetime": {
+            "version": "6.12.2",
+            "resolved": "https://registry.npmjs.org/spacetime/-/spacetime-6.12.2.tgz",
+            "integrity": "sha512-w0St4Q9X8KtuZ/JY8+FM8a4hMrAoNNUWQCt9UQQAUzwk8eDW5wrGh4SaNvEg+9cjLF++vixm6SgJyC6F7ALF/A=="
+        },
         "sparkles": {
             "version": "1.0.1",
             "resolved": "https://registry.npmjs.org/sparkles/-/sparkles-1.0.1.tgz",

package.json

@@ -34,6 +34,7 @@
     "homepage": "https://github.com/Serraniel/AniwatchPlus#readme",
     "dependencies": {
         "color": "^3.1.3",
+        "spacetime": "^6.12.2",
         "uuid": "^8.3.2"
     },
     "devDependencies": {

src/html/settings.html

@@ -16,6 +16,9 @@
         <input type="checkbox" id="websiteDisplayQuickSearch" data-default-value="true" />
         <label for="websiteDisplayQuickSearch">Enable Quick Search</label><br />
 
+        <input type="checkbox" id="websiteAutoTimeConversion" data-default-value="true" />
+        <label for="websiteAutoTimeConversion">Convert to local time</label><br />
+
         <input type="checkbox" id="websiteShowNotificationsCountInTab" data-default-value="true" />
         <label for="websiteShowNotificationsCountInTab">Show notification counter in browser tab</label><br />
 

src/javascript/app.js

@@ -9,6 +9,7 @@ import { init as fontColor } from './enhancements/fontColor';
 import { init as languageDisplay } from './enhancements/languageDisplay';
 import { init as notifications } from './enhancements/notifications';
 import { init as quickSearch } from './enhancements/quickSearch';
+import { init as timeConversion } from './enhancements/timeConversion';
 import { init as watch2getherChat } from './enhancements/watch2getherChat';
 // css
 import { init as cssEnhancements } from './enhancements/cssEnhancements';
@@ -26,6 +27,7 @@ fontColor();
 languageDisplay();
 notifications();
 quickSearch();
+timeConversion();
 watch2getherChat();
 
 // css

src/javascript/configuration/configuration.js

@@ -3,6 +3,7 @@ import { assigned } from "../utils/helpers";
 
 // website
 export const SETTINGS_websiteDisplayQuickSearch = 'websiteDisplayQuickSearch';
+export const SETTINGS_websiteAutoTimeConversion = 'websiteAutoTimeConversion';
 export const SETTINGS_websiteShowNotificationsCountInTab = 'websiteShowNotificationsCountInTab';
 export const SETTINGS_websiteHideUnusedTabs = 'websiteHideUnusedTabs';
 export const SETTINGS_websiteOptimizeListAppearance = 'websiteOptimizeListAppearance';

src/javascript/enhancements/timeConversion.js

@@ -0,0 +1,224 @@
+import spacetime from 'spacetime';
+import { getGlobalConfiguration, SETTINGS_websiteAutoTimeConversion } from '../configuration/configuration';
+import * as core from '../utils/aniwatchCore';
+import * as helper from '../utils/helpers';
+
+const __alteredNodes = [];
+const DAYS = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday'];
+
+export function init() {
+    getGlobalConfiguration().getProperty(SETTINGS_websiteAutoTimeConversion, value => {
+        if (value) {
+            // The regexp pattern matches anything except the airing page. 
+            // This is because we would have to restructure the complete site to update time data.
+            // Additionally, there is a big hint that all data would be UTC+1
+            core.runAfterLoad(() => {
+                updateTimestamps(document.documentElement);
+            }, "^/(?!airing).*$");
+
+            core.runAfterLocationChange(() => {
+                updateTimestamps(document.documentElement);
+            }, "^/(?!airing).*$");
+
+            core.registerScript(node => {
+                updateTimestamps(node);
+            }, "^/(?!airing).*$");
+        }
+    });
+}
+
+function getSpaceDateTimeFormat(use24Format) {
+    return `${getSpaceDateFormat()} ${getSpaceTimeFormat(use24Format)}`;
+}
+
+function getSpaceTimeFormat(use24Format) {
+    if (use24Format) {
+        return '{time-24}';
+    }
+
+    return '{time}';
+}
+
+function getSpaceDateFormat() {
+    return '{date}. {month-short} {year}';
+}
+
+function tryUpdateDateTime(node) {
+    const REG_DATETIME = /(\d{2}(\/|\.)){2}\d{4} *\d?\d:\d{2}( (AM|PM))?/g;
+    const REG_TIME = /\d?\d:\d{2}/;
+    const REG_AMPM = /\s(am|pm)/i;
+
+    let hits = Array.from(node.textContent.matchAll(REG_DATETIME), match => match[0]);
+
+    if (hits.length === 0) {
+        return false;
+    }
+
+    hits.forEach(hit => {
+        let use24Format = false;
+        let processedStr = hit
+
+        // string must be converted into 12h format
+        if (processedStr.search(REG_AMPM) < 0) {
+            let timeStr = processedStr.match(REG_TIME)[0];
+            let hm = timeStr.split(':');
+            let hour = parseInt(hm[0]);
+
+            if (hour >= 12) {
+                timeStr = timeStr.replace(`${hour}:`, `${hour - 12}:`);
+                timeStr += 'pm';
+            }
+            else {
+                timeStr += 'am';
+            }
+
+            processedStr = processedStr.replace(REG_TIME, timeStr);
+            use24Format = true;
+        }
+
+        // if time has a space before am/pm, this has to be removed for spacetime
+        processedStr = processedStr.replace(REG_AMPM, '$1');
+
+        let datetime = spacetime(processedStr, 'UTC+1', { dmy: true });
+        datetime = datetime.goto(spacetime().tz);
+        let replaceText = datetime.format(getSpaceDateTimeFormat(use24Format));
+
+        node.textContent = node.textContent.replace(hit, replaceText);
+    });
+
+    return true;
+}
+
+function tryUpdateDate(node) {
+    const REG_DATE = /(\d{2}(\/|\.)){2}\d{4}/g;
+
+    let hits = Array.from(node.textContent.matchAll(REG_DATE), match => match[0]);
+
+    if (hits.length === 0) {
+        return false;
+    }
+
+    hits.forEach(hit => {
+        let datetime = spacetime(hit, 'UTC+1', { dmy: true });
+        datetime = datetime.goto(spacetime().tz);
+        let replaceText = datetime.format(getSpaceDateFormat());
+
+        node.textContent = node.textContent.replace(hit, replaceText);
+    });
+
+    return true;
+}
+
+function tryUpdateTime(node) {
+    const REG_TIME = /\d?\d:\d{2}( (AM|PM))?/g;
+    const REG_AMPM = /\s(am|pm)/i;
+
+    let hits = Array.from(node.textContent.matchAll(REG_TIME), match => match[0]);
+
+    if (hits.length === 0) {
+        return false;
+    }
+
+    hits.forEach(hit => {
+        let use24Format = false;
+        let processedStr = hit
+
+        // string must be converted into 12h format
+        if (processedStr.search(REG_AMPM) < 0) {
+            let timeStr = processedStr.match(REG_TIME)[0];
+            let hm = timeStr.split(':');
+            let hour = parseInt(hm[0]);
+
+            if (hour >= 12) {
+                timeStr = timeStr.replace(`${hour}:`, `${hour - 12}:`);
+                timeStr += 'pm';
+            }
+            else {
+                timeStr += 'am';
+            }
+
+            processedStr = processedStr.replace(REG_TIME, timeStr);
+            use24Format = true;
+        }
+
+        // if time has a space before am/pm, this has to be removed for spacetime
+        processedStr = processedStr.replace(REG_AMPM, '$1');
+
+        let datetime = spacetime();
+        datetime = datetime.goto('UTC+1');
+        datetime = datetime.time(processedStr);
+        datetime = datetime.goto(spacetime().tz);
+        let replaceText = datetime.format(getSpaceTimeFormat(use24Format));
+
+        node.textContent = node.textContent.replace(hit, replaceText);
+
+        // SPECIAL CASE: Anime has the day written in broadcast bade. This may be different in another timezone
+        let tzMeta = spacetime().timezone();
+        let originalH = datetime.hour() - tzMeta.current.offset + 1;
+
+        let dOffset = 0;
+        // we moved to next day
+        if (originalH < 0) {
+            dOffset = 1;
+        }
+        // we moved to previous day
+        else if (originalH > 24) {
+            dOffset = -1;
+        }
+
+        // if day changed
+        if (dOffset != 0) {
+            let dayNode = node.parentNode.previousElementSibling;
+            if (helper.assigned(dayNode)) {
+                for (let i = 0; i < DAYS.length; i++) {
+                    if (dayNode.textContent.indexOf(DAYS[i]) >= 0) {
+                        dayNode.textContent = dayNode.textContent.replace(DAYS[i], DAYS[(i + DAYS.length + dOffset) % DAYS.length]); // add DAYS.length to avoid negative numbers in the modulo operation
+                        break;
+                    }
+                }
+            }
+        }
+    });
+
+    return true;
+}
+
+function tryUpdateTimeZone(node) {
+    const HINT_UTC = 'UTC+1';
+    if (node.textContent === HINT_UTC) {
+        let tzMeta = spacetime().timezone();
+
+        node.textContent = `${tzMeta.name} (UTC${tzMeta.current.offset >= 0 ? '+' : ''}${tzMeta.current.offset})`;
+    }
+}
+
+function updateTimestamps(node) {
+    let nodes = helper.findTextNodes(node);
+
+    nodes.forEach(node => {
+        // avoid double updates
+        if (__alteredNodes.indexOf(node) >= 0) {
+            return;
+        }
+
+        if (tryUpdateDateTime(node)) {
+            __alteredNodes.push(node);
+            return;
+        }
+
+        if (tryUpdateDate(node)) {
+            __alteredNodes.push(node);
+            return;
+        }
+
+        if (tryUpdateTime(node)) {
+            __alteredNodes.push(node);
+            return;
+        }
+
+        if (tryUpdateTimeZone(node)) {
+            __alteredNodes.push(node);
+            return;
+        }
+    });
+}

src/javascript/utils/helpers.js

@@ -36,4 +36,19 @@ function handleKeyToggle(event, isPressed) {
     } else if (event.key === 'Control') {
         isCtrlPressed = isPressed;
     }
+}
+
+export function findTextNodes(baseNode) {
+    if (!assigned(baseNode)) {
+        baseNode = document.documentElement;
+    }
+
+    let walker = document.createTreeWalker(baseNode, NodeFilter.SHOW_TEXT, null, false);
+    let node;
+    let results = [];
+    while (node = walker.nextNode()) {
+        results.push(node);
+    }
+
+    return results;
 }