/**
 * ─────────────────────────────────────────────
 *  SPB Git — Personal Git Platform
 * ─────────────────────────────────────────────
 *  Author  : Simon-Pierre Boucher
 *  Contact : contact@spboucher.ai
 *  File    : cli/commands/status.mjs
 *  Purpose : `spbgit status` — aggregated status across workspace repos
 *  License : MIT © Simon-Pierre Boucher
 * ─────────────────────────────────────────────
 */

import { basename, join } from 'node:path';
import { existsSync } from 'node:fs';
import pc from 'picocolors';
import { requireCliConfig } from '../lib/config.mjs';
import { workspaceRepos, repoStatus } from '../lib/git.mjs';
import { printTable, mapLimit } from '../lib/ui.mjs';
import { EXIT } from '../lib/api.mjs';

export function registerStatus(program) {
  program
    .command('status [name]')
    .description('aggregated status of workspace repositories')
    .option('--all', 'include clean repositories (default)', false)
    .option('--json', 'machine-readable output')
    .action(async (name, opts) => {
      const config = requireCliConfig();
      let dirs = workspaceRepos(config.workspace);
      if (name) {
        const target = join(config.workspace, name);
        if (!existsSync(target)) {
          console.error(pc.red(`✗ No such workspace repo: ${name}`));
          process.exit(EXIT.USER);
        }
        dirs = [target];
      }
      if (dirs.length === 0) {
        console.log(pc.dim(`Workspace ${config.workspace} has no repositories. Try: spbgit clone --all`));
        return;
      }
      const statuses = await mapLimit(dirs, 4, async (dir) => ({ dir, name: basename(dir), ...(await repoStatus(dir)) }));
      if (opts.json) {
        console.log(JSON.stringify(statuses, null, 2));
        return;
      }
      const rows = [[pc.bold('REPO'), pc.bold('BRANCH'), pc.bold('AHEAD'), pc.bold('BEHIND'), pc.bold('DIRTY')]];
      for (const s of statuses) {
        const clean = s.ahead === 0 && s.behind === 0 && s.dirty === 0;
        const paint = clean ? pc.dim : (x) => x;
        rows.push([
          paint(s.name),
          paint(s.branch + (s.hasUpstream ? '' : ' (no upstream)')),
          s.ahead > 0 ? pc.cyan(`↑${s.ahead}`) : paint('0'),
          s.behind > 0 ? pc.yellow(`↓${s.behind}`) : paint('0'),
          s.dirty > 0 ? pc.red(String(s.dirty)) : paint('0'),
        ]);
      }
      printTable(rows);
    });
}