// Forgejo issue integration for the in-app "Report Issue" button.
// Issues are created on the configured repo and labelled so the
// automated Claude watcher can pick them up.

const FORGEJO_URL = process.env.FORGEJO_URL ?? "https://git.pelagiamarine.com";
const FORGEJO_REPO = process.env.FORGEJO_REPO ?? "shad0w/pelagia-portal";

interface CreateIssueInput {
  title: string;
  body: string;
  labels: string[];
}

interface ForgejoIssue {
  number: number;
  html_url: string;
}

async function forgejoFetch(path: string, init?: RequestInit): Promise<Response> {
  const token = process.env.FORGEJO_TOKEN;
  if (!token) throw new Error("FORGEJO_TOKEN is not configured");

  return fetch(`${FORGEJO_URL}/api/v1${path}`, {
    ...init,
    headers: {
      Authorization: `token ${token}`,
      "Content-Type": "application/json",
      ...init?.headers,
    },
  });
}

/** Resolve label names to IDs (the create-issue API only accepts IDs). */
async function resolveLabelIds(names: string[]): Promise<number[]> {
  const res = await forgejoFetch(`/repos/${FORGEJO_REPO}/labels?limit=50`);
  if (!res.ok) return [];
  const labels: { id: number; name: string }[] = await res.json();
  return labels.filter((l) => names.includes(l.name)).map((l) => l.id);
}

export async function createForgejoIssue(input: CreateIssueInput): Promise<ForgejoIssue> {
  const labelIds = await resolveLabelIds(input.labels);

  const res = await forgejoFetch(`/repos/${FORGEJO_REPO}/issues`, {
    method: "POST",
    body: JSON.stringify({ title: input.title, body: input.body, labels: labelIds }),
  });

  if (!res.ok) {
    const text = await res.text();
    throw new Error(`Forgejo issue creation failed (${res.status}): ${text.slice(0, 200)}`);
  }

  const issue = await res.json();
  return { number: issue.number, html_url: issue.html_url };
}