import { PUBLIC_SUPABASE_ANON_KEY, PUBLIC_SUPABASE_URL } from "$env/static/public";
import type { Database } from "$lib/database";
import { createClient } from "@supabase/supabase-js";
import { error, type RequestHandler } from "@sveltejs/kit";

export const POST: RequestHandler = async ({ request }) => {
    const supabase = createClient<Database>(PUBLIC_SUPABASE_URL, PUBLIC_SUPABASE_ANON_KEY);
    const body = await request.bytes();
    const url = new URL(request.url);
    const title = url.searchParams.get("title");
    const imgTitle = url.searchParams.get("imgTitle");
    if (!title || !imgTitle) error(400, "Missing required fields: title, imgTitle");

    const { data: imageData, error: imageError } = await supabase.storage
        .from("files_bucket")
        .upload(`public/${imgTitle}`, body, {
            contentType: request.headers.get("content-type") || "image/png",
            upsert: false
        });
    if (imageError) error(500, `Failed to upload image: ${imageError.message}`);

    const { data: studySpaceData, error: studySpaceError } = await supabase
        .from("study_spaces")
        .insert({ title })
        .select()
        .single();
    if (studySpaceError) error(500, "Failed to create study space");

    const { error: imageLinkError } = await supabase
        .from("study_space_images")
        .insert({ study_space_id: studySpaceData.id, image_path: imageData.path });

    if (imageLinkError) error(500, "Failed to link image to study space");
    return new Response(JSON.stringify({ id: studySpaceData.id }), { status: 200 });
};