web: delete db on sign out

web/js/contacts.js

@@ -77,6 +77,8 @@ async function contacts_load(model) {
 	return dbcall(_contacts_load);
 }
 
+// TODO move database methods to it's own file
+
 async function dbcall(fn) {
 	return new Promise((resolve, reject) => {
 		var open = indexedDB.open("damus", 4);
@@ -95,3 +97,26 @@ async function dbcall(fn) {
 		};
 	});
 }
+
+async function dbclear() {
+	function _dbclear(ev, resolve, reject) {
+		const stores = ["friends", "events"];
+		const db = ev.target.result;
+		const tx = db.transaction(stores, "readwrite");
+		tx.oncomplete = (ev) => {
+			db.close();
+			resolve();
+			log_debug("cleared database");
+		}
+		tx.onerror = (ev) => {
+			db.close();
+			log_error(`tx errorCode: ${ev.request.errorCode}`);
+			reject(ev);
+		};
+		for (const store of stores) {
+			tx.objectStore(store).clear();
+			tx.objectStore(store).clear();
+		}
+	}
+	return dbcall(_dbclear);
+}

web/js/ui/util.js

@@ -158,9 +158,10 @@ function close_reply() {
 	modal.classList.add("closed");
 }
 
-function press_logout() {
+async function press_logout() {
 	if (confirm("Are you sure you want to sign out?")) {
 		localStorage.clear();
+		await dbclear();
 		window.location.href = url.toString()
 	}
 }