import type { ValidatedImage } from "@/lib/share/validation";

export type ShareAuthor = {
  userId: string;
  discordId: string;
  displayName: string;
  avatarUrl: string | null;
};

export type CreateShareInput = {
  content: string;
  description: string | null;
  image: ValidatedImage | null;
  source: "web" | "bot";
  author: ShareAuthor;
};

export type CreatedShare = {
  id: string;
  imageCdnId: string | null;
  createdAt: Date;
};

export type CreateShareTransaction = {
  insertImage(image: ValidatedImage, ownerDiscordId: string): Promise<string>;
  insertShare(
    input: CreateShareInput,
    imageCdnId: string | null,
  ): Promise<CreatedShare>;
};

export type CreateShareStore = {
  transaction<T>(callback: (tx: CreateShareTransaction) => Promise<T>): Promise<T>;
};

export function createShareAtomically(
  input: CreateShareInput,
  store: CreateShareStore,
) {
  return store.transaction(async (tx) => {
    const imageCdnId = input.image
      ? await tx.insertImage(input.image, input.author.discordId)
      : null;
    return tx.insertShare(input, imageCdnId);
  });
}