/*
 * Function to handle settings toggles and the effects they control
 * handleOnToggle: Function to be called if user turns the setting on
 * handleOnDefault: Function to be called if the setting is on by default
 * handleOffToggle: Function to be called if user turns the setting off
 * handleOffDefault: Function to be called if the setting is off by default
 * settingToggle: String - ID of the user-facing toggle element to control the effect
 * preferenceName: String - Name to be used to record the user's setting preference in local storage'
 * defaultSetting: Boolean
 * forcedOn: Boolean - whether to ignore the user preference if defaultSetting = true
 */

const settingHandler = (settingsObject) => {
	const toggle = document.getElementById(settingsObject.settingToggle);
	const preference = localStorage.getItem(settingsObject.preferenceName);

	// Report settings
	console.info(
		`
		Settings: ${settingsObject.preferenceName}
		----------
		Default: ${settingsObject.defaultSetting}
		Forced on: ${settingsObject.forcedOn}
		User preference: ${preference}
		`,
	);

	// User preference is positive
	if (preference === "1") {
		toggle.checked = true;
		settingsObject.forcedOn ? (toggle.disabled = true) : null;
		settingsObject.handleOnDefault();
	} else if (settingsObject.defaultSetting && settingsObject.forcedOn) {
		// Default on, user preference ignored
		toggle.checked = true;
		toggle.disabled = true;
		settingsObject.handleOnDefault();
	} else if (settingsObject.defaultSetting && !preference) {
		// Default on, no user preference
		toggle.checked = true;
		settingsObject.forcedOn ? (toggle.disabled = true) : null;
		settingsObject.handleOnDefault();
	} else {
		toggle.checked = false;
		settingsObject.handleOffDefault();
	}

	// Handle setting toggle
	toggle.addEventListener("change", function () {
		if (this.checked) {
			console.info(
				`Settings: User turned on ${settingsObject.preferenceName}.`,
			);
			localStorage.setItem(settingsObject.preferenceName, 1);
			settingsObject.handleOnToggle();
		} else {
			console.info(
				`Settings: User turned off ${settingsObject.preferenceName}.`,
			);
			localStorage.setItem(settingsObject.preferenceName, 0);
			settingsObject.handleOffToggle();
		}
	});
};