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2
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1 import { addHours, endOfToday, endOfTomorrow, format, isAfter, isBefore, isToday, isTomorrow, isWithinInterval, parseISO, startOfToday } from "date-fns";
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11
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2 import { html, LitElement, TemplateResult } from "lit";
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2
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3 import { customElement, property } from "lit/decorators.js";
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4 import { sortBy } from "lodash";
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5 import { DataFactory, NamedNode, Parser, Quad_Predicate, Quad_Subject, Store, Term } from "n3";
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6 import { hideFeeds, hideTitles } from "./private";
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7 import { shared } from "./shared";
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8 const { namedNode } = DataFactory;
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9 export { WeekGuide } from "./WeekGuide";
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10 const EV = "http://bigasterisk.com/event#";
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11 const RDF = "http://www.w3.org/1999/02/22-rdf-syntax-ns#";
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12
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11
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13 const es = new EventSource("http://localhost:8005/events");
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14 es.addEventListener("message", (msg) => {
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15 (document.querySelector("#time") as HTMLElement).innerText = JSON.parse(msg.data).time.label;
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16 });
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4
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17
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11
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18 function notifyWebScraperOnAllDomChanges() {
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19 function sendPostRequest(data: any) {
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20 fetch("https://example.com/api", {
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21 method: "POST",
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22 headers: { "Content-Type": "application/json" },
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23 body: JSON.stringify(data),
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24 })
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25 .then((response) => {
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26 if (!response.ok) {
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27 throw new Error("Network response was not ok");
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28 }
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29 return response.json();
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30 })
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31 .then((data) => {
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32 console.log("POST request successful");
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33 })
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34 .catch((error) => {
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35 console.error("There was a problem with the POST request:", error);
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36 });
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37 }
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38
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39 function handleDomChanges(mutationsList: MutationRecord[], observer: MutationObserver): void {
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40 sendPostRequest({ domChanges: mutationsList });
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41 }
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42
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43 const observer = new MutationObserver(handleDomChanges);
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44 observer.observe(document.body, { subtree: true, childList: true, attributes: true });
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4
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45 }
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46
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2
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47 function getLiteral(store: Store, graph: Term, subj: Quad_Subject, pred: Quad_Predicate, missing: string | null): string {
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48 let out = null;
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49 store.getObjects(subj, pred, graph).forEach((attr) => {
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50 out = attr.value;
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51 });
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52 if (!out) {
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53 if (missing === null) {
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54 throw new Error();
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55 }
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56 return missing;
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57 }
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58 return out;
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59 }
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60
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61 class DisplayEvent {
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62 constructor(private store: Store, private graph: Term, public uri: Quad_Subject) {}
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63 get title(): string {
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64 return getLiteral(this.store, this.graph, this.uri, namedNode(EV + "title"), "(unnamed)");
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65 }
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66 get start(): string {
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67 return getLiteral(this.store, this.graph, this.uri, namedNode(EV + "start"), null);
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68 }
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69 get feed(): NamedNode {
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70 return namedNode(getLiteral(this.store, this.graph, this.uri, namedNode(EV + "feed"), null));
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71 }
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72 shortDate(): TemplateResult {
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73 const t = parseISO(this.start);
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74 return html`<span class="d">${format(t, "EEE, MMM d,")}</span> <span class="t">${format(t, "HH:mm")}</span>`;
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75 }
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76 show(): boolean {
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77 const now = new Date();
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78 const t = parseISO(this.start);
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79
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80 const start = startOfToday();
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81 let end = endOfToday();
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82 if (isAfter(now, addHours(startOfToday(), 18))) {
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83 end = endOfTomorrow();
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84 }
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85
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86 return isWithinInterval(t, { start, end }) && !hideTitles.has(this.title) && !hideFeeds.has(this.feed.value);
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87 }
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88 toHtml(): TemplateResult {
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89 return html`
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90 <li>
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91 <span class="date">${this.shortDate()}</span> ${this.title}
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92 <!--${this.feed}-->
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93 </li>
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94 `;
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95 }
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96 }
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97
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98 @customElement("fd-upcoming-events")
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99 export class UpcomingEvents extends LitElement {
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100 @property() evs: DisplayEvent[];
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101 constructor() {
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102 super();
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103 this.evs = [];
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104 this.load();
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105 setInterval(this.load.bind(this), 5 * 60 * 1000);
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106 }
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107
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108 async load() {
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109 const store = new Store();
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11
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110 const r = await fetch(
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111 "/gcalendarwatch/graph/calendar/upcoming",
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112
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113 {
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114 method: "GET",
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115 headers: {
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116 Accept: "application/json",
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117 "X-Pomerium-Authorization": document.cookie.substring(document.cookie.indexOf("=") + 1),
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118 },
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119 }
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2
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120 );
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121 const n3txt = await r.text();
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122 const parser = new Parser({ format: "application/trig" });
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123 parser.parse(n3txt, (error, quad, prefixes) => {
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124 if (quad) {
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125 store.addQuad(quad);
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126 } else {
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127 const graph = namedNode(EV + "gcalendar");
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128 this.evs = [];
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129 store.getSubjects(namedNode(RDF + "type"), namedNode(EV + "Event"), graph).forEach((ev: Quad_Subject) => {
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130 const de = new DisplayEvent(store, graph, ev);
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131 if (de.show()) {
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132 this.evs = [...this.evs, de];
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133 }
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134 });
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135 this.evs = sortBy(this.evs, "start");
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136 }
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137 });
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138 }
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139 static styles = [
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140 shared,
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141 ];
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142 render() {
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143 return html`
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144 <h1 data-text="Calendar">Calendar</h1>
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145 <ol>
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146 ${this.evs.map((d) => d.toHtml())}
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147 </ol>
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148 `;
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149 }
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150 }
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