export interface GiteaConfig {
  baseUrl: string;
  user: string;
  token: string;
}

export interface GiteaRepo {
  clone_url: string;
  ssh_url: string;
  html_url: string;
}

export class GiteaRepoExistsError extends Error {
  constructor() {
    super('gitea-repo-exists');
  }
}

export async function createGiteaRepo(
  cfg: GiteaConfig,
  name: string,
  options: { private: boolean }
): Promise<GiteaRepo> {
  const res = await fetch(`${cfg.baseUrl}/api/v1/user/repos`, {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
      Authorization: `token ${cfg.token}`,
    },
    body: JSON.stringify({
      name,
      private: options.private,
      auto_init: false,
    }),
  });
  if (res.status === 409) throw new GiteaRepoExistsError();
  if (!res.ok) {
    const text = await res.text().catch(() => '');
    throw new Error(`gitea-api-${res.status}: ${text.slice(0, 200)}`);
  }
  const body = (await res.json()) as { ssh_url?: string; clone_url?: string; html_url?: string };
  if (!body.ssh_url || !body.html_url || !body.clone_url) {
    throw new Error(`gitea-api-unexpected-shape: ${JSON.stringify(body).slice(0, 200)}`);
  }
  return {
    ssh_url: body.ssh_url,
    clone_url: body.clone_url,
    html_url: body.html_url,
  };
}