import { getAppUserFromRequest } from "@/server/app/app-auth";
import {
    getUserSettings,
    updateUserSettings,
} from "@/server/app/user-preferences";
import { NextResponse } from "next/server";
import { z } from "zod";

export const runtime = "nodejs";
export const dynamic = "force-dynamic";

const settingsSchema = z.object({
    preferences: z.record(z.string(), z.unknown()).optional(),
    downloadPreferences: z.record(z.string(), z.unknown()).optional(),
});

function mapSettings(settings: Awaited<ReturnType<typeof getUserSettings>>) {
    return {
        preferences: settings.preferences,
        downloadPreferences: settings.download_preferences,
        updatedAt: settings.updated_at,
    };
}

export async function GET(request: Request) {
    try {
        const user = await getAppUserFromRequest(request);

        if (!user) {
            return NextResponse.json(
                { ok: false, error: "Unauthorized." },
                { status: 401 },
            );
        }

        const settings = await getUserSettings(user.id);

        return NextResponse.json({
            ok: true,
            data: mapSettings(settings),
        });
    } catch (error) {
        const message =
            error instanceof Error ? error.message : "Unknown error.";
        return NextResponse.json(
            { ok: false, error: message },
            { status: 500 },
        );
    }
}

export async function PATCH(request: Request) {
    try {
        const user = await getAppUserFromRequest(request);

        if (!user) {
            return NextResponse.json(
                { ok: false, error: "Unauthorized." },
                { status: 401 },
            );
        }

        const parsed = settingsSchema.safeParse(await request.json());

        if (!parsed.success) {
            return NextResponse.json(
                { ok: false, error: "Invalid request body." },
                { status: 400 },
            );
        }

        const settings = await updateUserSettings({
            userId: user.id,
            preferences: parsed.data.preferences,
            downloadPreferences: parsed.data.downloadPreferences,
        });

        return NextResponse.json({
            ok: true,
            data: mapSettings(settings),
        });
    } catch (error) {
        const message =
            error instanceof Error ? error.message : "Unknown error.";
        return NextResponse.json(
            { ok: false, error: message },
            { status: 500 },
        );
    }
}