const gun = Gun("https://hybrid-osn.herokuapp.com/gun"); const gunId = "hybridOSN-beta010"; const app = new Vue({ el: "#app", data: { date: new Date().toISOString().slice(0, 10), keysByDate: {}, done: 0, total: 0, showLoading: false, hashtags: [] }, computed: { hashtagKey() { if (this.date in this.keysByDate) { return this.keysByDate[this.date]; } else { return null; } }, hashtagRanking() { const ranking = _.countBy(this.hashtags, hashtag => hashtag); const sortableHelper = []; for (let entry in ranking) { sortableHelper.push({ hashtags: entry, counts: ranking[entry] }); } const sortedRanking = sortableHelper.sort( (a, b) => b["counts"] - a["counts"] ); return sortedRanking; } }, async mounted() { // load data and group by date const data = await gun .get(gunId) .get("hashtags") .then(); if (data === undefined) { console.error("Currently there is no data on Gun provided."); } else { const keys = Object.keys(data).filter(val => /^[0-9]+$/.test(val)); this.createDateKeyMap(keys); this.loadHashtags(); } }, methods: { createDateKeyMap(keys) { const tzoffset = new Date().getTimezoneOffset() * 60000; this.keysByDate = keys.reduce((map, el) => { map[new Date(parseInt(el) - tzoffset).toISOString().slice(0, 10)] = el; return map; }, {}); }, async loadHashtags() { this.hashtags = []; // show loading this.showLoading = true; if (this.hashtagKey === null) { console.info("No hashtags posted on this day (" + this.date + ")"); } else { let data = await gun .get(gunId) .get("hashtags") .get(this.hashtagKey) .then(); const keys = Object.keys(data).filter(val => /^[0-9]+$/.test(val)); // (re)set vars this.total = keys.length; // fetch hashtags for (let i = 0; i < this.total; i++) { this.done = i + 1; const hashtagEntry = await gun.get(keys[i]).then(); if (hashtagEntry !== undefined && hashtagEntry["hashtags"]) { this.hashtags.push(hashtagEntry["hashtags"]); } } } // finish loading this.showLoading = false; } } });