import chalk from "chalk";
import { fetchVersions } from "../lib/registry-client.js";

export async function versionsCommand(skillName: string): Promise<void> {
  if (!skillName.match(/^@[a-z0-9-]+\/[a-z0-9-]+$/)) {
    console.error(
      chalk.red(
        `Error: skill name must be @namespace/skill-name (got: ${skillName})`
      )
    );
    process.exit(1);
  }

  console.log(chalk.bold(`Fetching versions for ${chalk.cyan(skillName)}...`));

  const versions = await fetchVersions(skillName);

  if (!versions.length) {
    console.log(chalk.dim("No versions published yet."));
    return;
  }

  console.log(chalk.bold(`\n  ${versions.length} version(s) found:\n`));
  console.log(
    chalk.dim(
      "  " + "VERSION".padEnd(16) + "PUBLISHED".padEnd(28) + "CONTENT HASH"
    )
  );
  console.log(chalk.dim("  " + "─".repeat(72)));

  for (const v of versions) {
    const date = new Date(v.publishedAt).toLocaleString();
    const hash = v.contentHash.slice(0, 12) + "...";
    console.log(`  ${v.version.padEnd(16)}${date.padEnd(28)}${chalk.dim(hash)}`);
  }

  console.log();
}