import "server-only";

import { prisma } from "@/lib/prisma";

export interface NotificationPreferences {
	emailEnabled: boolean;
	pushEnabled: boolean;
	friendRequest: boolean;
	messages: boolean;
	guildInvite: boolean;
	events: boolean;
	alerts: boolean;
	achievements: boolean;
	radio: boolean;
}

const DEFAULTS: NotificationPreferences = {
	emailEnabled: true,
	pushEnabled: true,
	friendRequest: true,
	messages: true,
	guildInvite: true,
	events: true,
	alerts: true,
	achievements: true,
	radio: true,
};

export async function getPreferences(
	userId: number,
): Promise<NotificationPreferences> {
	try {
		const prefs = await prisma.websiteNotificationPreference.findUnique({
			where: { userId: BigInt(userId) },
		});
		if (!prefs) return { ...DEFAULTS };
		return {
			emailEnabled: prefs.emailEnabled,
			pushEnabled: prefs.pushEnabled,
			friendRequest: prefs.friendRequest,
			messages: prefs.messages,
			guildInvite: prefs.guildInvite,
			events: prefs.events,
			alerts: prefs.alerts,
			achievements: prefs.achievements,
			radio: prefs.radio,
		};
	} catch {
		return { ...DEFAULTS };
	}
}

export async function updatePreferences(
	userId: number,
	prefs: Partial<NotificationPreferences>,
): Promise<void> {
	try {
		const existing = await prisma.websiteNotificationPreference.findUnique({
			where: { userId: BigInt(userId) },
		});

		const data = {
			emailEnabled: prefs.emailEnabled ?? existing?.emailEnabled ?? true,
			pushEnabled: prefs.pushEnabled ?? existing?.pushEnabled ?? true,
			friendRequest: prefs.friendRequest ?? existing?.friendRequest ?? true,
			messages: prefs.messages ?? existing?.messages ?? true,
			guildInvite: prefs.guildInvite ?? existing?.guildInvite ?? true,
			events: prefs.events ?? existing?.events ?? true,
			alerts: prefs.alerts ?? existing?.alerts ?? true,
			achievements: prefs.achievements ?? existing?.achievements ?? true,
			radio: prefs.radio ?? existing?.radio ?? true,
		};

		await prisma.websiteNotificationPreference.upsert({
			where: { userId: BigInt(userId) },
			update: data,
			create: { userId: BigInt(userId), ...data },
		});
	} catch {}
}