/**
 * Console + GitHub Actions reporting shared by the issue reconcilers.
 *
 * Both reconcilers end the same way: an aligned table on stdout, and the same
 * table as Markdown in the step summary when running under Actions.
 */

/** Print rows[0] as a header, a rule, then the body — every column padded. */
export function printTable(rows: string[][]): void {
  const widths = rows[0]!.map((_, i) => Math.max(...rows.map((r) => r[i]!.length)));
  const render = (r: string[]) =>
    r
      .map((cell, i) => cell.padEnd(widths[i]!))
      .join("  ")
      .trimEnd();

  console.log(render(rows[0]!));
  console.log(widths.map((n) => "─".repeat(n)).join("  "));
  for (const row of rows.slice(1)) console.log(render(row));
}

/** Same rows as a GitHub-flavoured Markdown table; rows[0] is the header. */
export function markdownTable(rows: string[][]): string {
  const [header, ...body] = rows;
  return [
    `| ${header!.join(" | ")} |`,
    `| ${header!.map(() => "---").join(" | ")} |`,
    ...body.map((r) => `| ${r.join(" | ")} |`),
  ].join("\n");
}

/** Append to the Actions step summary; a no-op outside Actions. */
export async function writeStepSummary(markdown: string): Promise<void> {
  const path = process.env.GITHUB_STEP_SUMMARY;
  if (!path) return;
  await Bun.write(path, markdown);
}