Manipulate history when viewing yesterday's train

sw.js

@@ -1,4 +1,4 @@
-const VERSION = 'v33'
+const VERSION = 'v34'
 const API_ORIGIN = 'https://scraper.infotren.dcdev.ro/'
 const API_TRAINS = `${API_ORIGIN}v3/trains`
 const API_STATIONS = `${API_ORIGIN}v3/stations`

view-train.js

@@ -89,6 +89,16 @@ function onTrainData(data, fetchDate) {
 		e.preventDefault()
 		// Implement date switcher
 		yesterday = !yesterday
+		if (!yesterday) {
+			history.back()
+		}
+		else {
+			const yesterdayUrl = new URL(location.href)
+			const newDate = new Date(date.getTime())
+			newDate.setDate(newDate.getDate() - 1)
+			yesterdayUrl.searchParams.set('date', newDate.toISOString())
+			history.pushState('', '', yesterdayUrl)
+		}
 		refresh()
 	})
 
@@ -495,7 +505,13 @@ function rsk() {
 }
 
 window.addEventListener('popstate', function (e) {
-	groupIndex = null
+	if (yesterday) {
+		yesterday = false
+		trainData = null
+	}
+	else {
+		groupIndex = null
+	}
 	if (trainData) {
 		onTrainData(trainData)
 	}