import { createSupabaseServiceRoleClient } from "@/lib/supabase/service-role";
import { uploadRemoteImageToAliyunOss } from "@/server/storage/aliyun-oss";

type GalleryPhotoPickRow = {
    id: string;
    unsplash_id: string;
    urls: Record<string, unknown>;
};

function getMirrorSourceUrl(urls: Record<string, unknown>) {
    const candidates = [
        urls.full,
        urls.regular,
        urls.raw,
        urls.small,
        urls.thumb,
    ];

    for (const candidate of candidates) {
        if (typeof candidate === "string" && candidate.length > 0) {
            return candidate;
        }
    }

    return null;
}

export async function updateGalleryPhotoPickStatus({
    isPicked,
    pickedBy,
    unsplashId,
}: {
    isPicked: boolean;
    pickedBy: string;
    unsplashId: string;
}) {
    const supabase = createSupabaseServiceRoleClient();
    const { data: photo, error: readError } = await supabase
        .from("wg_gallery_photos")
        .select("id,unsplash_id,urls")
        .eq("unsplash_id", unsplashId)
        .maybeSingle<GalleryPhotoPickRow>();

    if (readError) {
        throw readError;
    }

    if (!photo) {
        throw new Error("Gallery photo was not found.");
    }

    const now = new Date().toISOString();
    const update: Record<string, unknown> = {
        is_picked: isPicked,
        picked_at: isPicked ? now : null,
        picked_by: isPicked ? pickedBy : null,
        oss_sync_error: null,
    };

    if (isPicked) {
        const imageUrl = getMirrorSourceUrl(photo.urls);

        if (!imageUrl) {
            update.oss_sync_error = "No usable source image URL was found.";
        } else {
            const upload = await uploadRemoteImageToAliyunOss({
                imageUrl,
                objectKeyPrefix: `gallery/unsplash/${photo.unsplash_id}`,
            });

            if (upload.ok) {
                update.oss_bucket = upload.bucket;
                update.oss_object_key = upload.objectKey;
                update.oss_url = upload.url;
                update.oss_synced_at = now;
            } else {
                update.oss_sync_error = upload.error;
            }
        }
    }

    const { data, error } = await supabase
        .from("wg_gallery_photos")
        .update(update)
        .eq("unsplash_id", unsplashId)
        .select(
            "id,unsplash_id,slug,description,alt_description,width,height,color,color_family,likes,urls,user_info,photo_created_at,is_picked,picked_at,picked_by,oss_url,oss_object_key,oss_synced_at,oss_sync_error",
        )
        .single();

    if (error) {
        console.error("[gallery-pick] Supabase update failed", error);
        throw error;
    }

    return data;
}