Add query history persistence (#20700)

* initial

* Fix and revert secret storage changes

* persist to file

* Add debounce and write on dispose

* Fix run

* No ext dependencies and show warning message

* Remove test stuff

* comments

* Fix tests and console logs

extensions/query-history/src/utils.ts

@@ -11,3 +11,35 @@
 export function removeNewLines(str: string): string {
 	return str.replace(/\r\n/g, ' ').replace(/\n/g, ' ');
 }
+
+function decorate(decorator: (fn: Function, key: string) => Function): Function {
+	return (_target: any, key: string, descriptor: any): void => {
+		let fnKey: string | null = null;
+		let fn: Function | null = null;
+
+		if (typeof descriptor.value === 'function') {
+			fnKey = 'value';
+			fn = descriptor.value;
+		} else if (typeof descriptor.get === 'function') {
+			fnKey = 'get';
+			fn = descriptor.get;
+		}
+
+		if (!fn || !fnKey) {
+			throw new Error('not supported');
+		}
+
+		descriptor[fnKey] = decorator(fn, key);
+	};
+}
+
+export function debounce(delay: number): Function {
+	return decorate((fn, key) => {
+		const timerKey = `$debounce$${key}`;
+
+		return function (this: any, ...args: any[]): void {
+			clearTimeout(this[timerKey]);
+			this[timerKey] = setTimeout(() => fn.apply(this, args), delay);
+		};
+	});
+}