From 8a04cf20c5d6dc577a7de7745cbeb292bf78529d Mon Sep 17 00:00:00 2001
From: Daniel Friesel <derf@finalrewind.org>
Date: Sat, 21 Aug 2021 11:35:43 +0200
Subject: asset version management

---
 static/js/geolocation.js | 143 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 143 insertions(+)
 create mode 100644 static/js/geolocation.js

(limited to 'static/js/geolocation.js')

diff --git a/static/js/geolocation.js b/static/js/geolocation.js
new file mode 100644
index 0000000..aba8b10
--- /dev/null
+++ b/static/js/geolocation.js
@@ -0,0 +1,143 @@
+document.addEventListener("DOMContentLoaded", function() {
+	const geoLocationButton = document.getElementById('geolocationsearch');
+
+	const mkTextNode = function(className, textContent) {
+		const node = document.createElement("span");
+		node.className = className;
+		node.textContent = textContent;
+		return node
+	}
+
+	const processResult = function(results) {
+		const list = document.createElement("ul");
+		list.className = "stops";
+
+		if (results.error) {
+			showError("Backend-Fehler:", results.msg);
+			return;
+		}
+
+		for (var result in results) {
+			result = results[result];
+			const listentry = document.createElement("li");
+			const link = document.createElement("a");
+			const note = document.createElement("span");
+			const lines = document.createElement("span");
+
+			link.className = "name";
+			link.textContent = result.name;
+			link.href = "/board/" + result.id;
+
+			note.className = "distance";
+			if (result.distance >= 1000) {
+				note.textContent = (result.distance / 1000).toFixed(1) + " km"
+			} else {
+				note.textContent = result.distance + " m"
+			}
+
+			lines.className = "lines";
+
+			if (result.products.nationalExpress) {
+				lines.appendChild(mkTextNode("longdistance", "ICE"));
+			}
+			if (result.products.national) {
+				lines.appendChild(mkTextNode("longdistance", "IC"));
+			}
+			if (result.products.regionalExp) {
+				lines.appendChild(mkTextNode("longdistance", "RE"));
+			}
+			if (result.products.regional) {
+				lines.appendChild(mkTextNode("longdistance", "R"));
+			}
+			if (result.products.suburban) {
+				lines.appendChild(mkTextNode("suburban", "S"));
+			}
+			if (result.products.tram) {
+				lines.appendChild(mkTextNode("tram", "T"));
+			}
+			if (result.products.bus) {
+				lines.appendChild(mkTextNode("bus", "Bus"));
+			}
+			if (result.products.ferry) {
+				lines.appendChild(mkTextNode("bus", "Fähre"));
+			}
+			if (result.products.taxi) {
+				lines.appendChild(mkTextNode("taxi", "AST"));
+			}
+
+			listentry.appendChild(link);
+			listentry.appendChild(note);
+			listentry.appendChild(lines);
+			list.appendChild(listentry);
+		}
+		geoLocationButton.replaceWith(list);
+	};
+
+	const processLocation = function(loc) {
+		fetch('/geolocation', {
+			method: 'POST',
+			headers: {
+				'Content-Type': 'application/json'
+			},
+			body: JSON.stringify({
+				lon: loc.coords.longitude,
+				lat: loc.coords.latitude
+			})
+		}).then(response => response.json()).then(processResult);
+	};
+
+	const showError = function(header, text, code) {
+		const errnode = document.createElement("div");
+		const errhead = document.createElement("strong");
+		const errtext = document.createTextNode(text);
+		const errcode = document.createElement("div");
+
+		errnode.className = "error";
+		errcode.className = "errcode";
+
+		errhead.textContent = header;
+		errcode.textContent = code;
+
+		errnode.appendChild(errhead);
+		errnode.appendChild(errtext);
+		errnode.appendChild(errcode);
+
+		geoLocationButton.replaceWith(errnode);
+	}
+
+	const processError = function(error) {
+		if (error.code == error.PERMISSION_DENIED) {
+			showError('Standortanfrage nicht möglich.', 'Vermutlich fehlen die Rechte im Browser oder der Android Location Service ist deaktiviert.', 'geolocation.error.PERMISSION_DENIED');
+		} else if (error.code == error.POSITION_UNAVAILABLE) {
+			showError('Standort konnte nicht ermittelt werden', 'Service nicht verfügbar', 'geolocation.error.POSITION_UNAVAILABLE');
+		} else if (error.code == error.TIMEOUT) {
+			showError('Standort konnte nicht ermittelt werden', 'Timeout', 'geolocation.error.TIMEOUT');
+		} else {
+			showError('Standort konnte nicht ermittelt werden', 'unbekannter Fehler', 'unknown geolocation.error code');
+		}
+	};
+
+	const getGeoLocation = function() {
+		geoLocationButton.textContent = "Suche Haltestellen ...";
+		geoLocationButton.disabled = true;
+		navigator.geolocation.getCurrentPosition(processLocation, processError);
+	}
+
+	if (geoLocationButton) {
+		if (navigator.geolocation) {
+			if (navigator.permissions) {
+				navigator.permissions.query({ name:'geolocation' }).then(function(value) {
+					if (value.state === 'prompt') {
+						geoLocationButton.addEventListener('click', getGeoLocation);
+					} else {
+						getGeoLocation();
+					}
+				});
+			} else {
+				geoLocationButton.addEventListener('click', getGeoLocation);
+			}
+		} else {
+			geoLocationButton.css('visibility', 'hidden');
+		}
+	}
+});
-- 
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