/**
 * ─────────────────────────────────────────────
 *  SPB Git — Personal Git Platform
 * ─────────────────────────────────────────────
 *  Author  : Simon-Pierre Boucher
 *  Contact : contact@spboucher.ai
 *  File    : cli/commands/commit.mjs
 *  Purpose : `spbgit commit <name>|--all -m` — add-all + commit
 *  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, git } from '../lib/git.mjs';
import { mapLimit, SYM } from '../lib/ui.mjs';
import { EXIT } from '../lib/api.mjs';

/** Resolve the list of target repo dirs for name/--all commands. */
export function resolveTargets(config, name, all) {
  if (all) return workspaceRepos(config.workspace);
  if (!name) {
    console.error(pc.red('✗ Provide a repository name or --all'));
    process.exit(EXIT.USER);
  }
  const dir = join(config.workspace, name);
  if (!existsSync(join(dir, '.git'))) {
    console.error(pc.red(`✗ No such workspace repo: ${name}`));
    process.exit(EXIT.USER);
  }
  return [dir];
}

export function registerCommit(program) {
  program
    .command('commit [name]')
    .description('git add -A && git commit in target repo(s)')
    .option('--all', 'every workspace repository', false)
    .requiredOption('-m, --message <msg>', 'commit message')
    .action(async (name, opts) => {
      const config = requireCliConfig();
      const targets = resolveTargets(config, name, opts.all);
      let failures = 0;
      await mapLimit(targets, 4, async (dir) => {
        const repo = basename(dir);
        const status = await git(dir, ['status', '--porcelain']);
        if (status.ok && status.stdout.trim() === '') {
          console.log(`${SYM.skip} ${repo} ${pc.dim('clean — skipped')}`);
          return;
        }
        await git(dir, ['add', '-A']);
        const commit = await git(dir, ['commit', '-m', opts.message]);
        if (commit.ok) console.log(`${SYM.ok} ${repo} ${pc.dim('committed')}`);
        else {
          failures += 1;
          console.error(`${SYM.fail} ${repo}: ${commit.stderr.trim().split('\n').pop()}`);
        }
      });
      if (failures > 0) process.exit(EXIT.PARTIAL);
    });
}