/**
 * acr list — 列出 USER_KV 中所有已上傳的 workflow
 */
import chalk from 'chalk';
import ora from 'ora';
import { loadConfig } from '../lib/config.js';
import { CfKvClient } from '../lib/cf-api.js';

export async function cmdList(): Promise<void> {
  const config = loadConfig();

  if (!config.cloudflare_account_id || !config.cf_api_token) {
    console.error(chalk.red('缺少 Cloudflare 設定，請執行 acr init'));
    process.exit(1);
  }

  const namespaceId = config.mode === 'standard'
    ? config.user_kv_namespace_id!
    : config.webhooks_kv_namespace_id!;

  if (!namespaceId) {
    console.error(chalk.red('缺少 KV Namespace ID，請執行 acr init'));
    process.exit(1);
  }

  const kv = new CfKvClient({
    accountId: config.cloudflare_account_id,
    namespaceId,
    apiToken: config.cf_api_token,
  });

  const spinner = ora('讀取 workflow 清單').start();

  try {
    const keys = await kv.list('workflow:');
    spinner.stop();

    if (keys.length === 0) {
      console.log(chalk.yellow('\n  沒有已部署的 workflow。執行 acr push <workflow.yaml> 部署第一個。\n'));
      return;
    }

    console.log(chalk.bold(`\n  已部署 ${keys.length} 個 workflow\n`));

    for (const key of keys) {
      const name = key.name.replace('workflow:', '');
      // 嘗試讀取 workflow 定義取得 created_at
      try {
        const raw = await kv.get(key.name);
        if (raw) {
          const def = JSON.parse(raw) as { name: string; description?: string; created_at?: string };
          const date = def.created_at ? new Date(def.created_at).toLocaleString('zh-TW') : '未知';
          const desc = def.description ? chalk.gray(` — ${def.description}`) : '';
          console.log(`  • ${chalk.cyan(name.padEnd(25))} ${date}${desc}`);
        } else {
          console.log(`  • ${chalk.cyan(name)}`);
        }
      } catch {
        console.log(`  • ${chalk.cyan(name)}`);
      }
    }

    console.log('');
  } catch (e) {
    spinner.fail(chalk.red(`KV 讀取失敗：${e instanceof Error ? e.message : e}`));
    process.exit(1);
  }
}