#!/usr/bin/env bun

const chokidar = require('chokidar');
const { execSync } = require('child_process');
const path = process.cwd();
let lastActivity = Date.now();
const TIMEOUT = 600000; // 10 minutes
const AMEND_COMMITS = true; // Amend auto-commits
let isProcessing = false; // Prevent recursive calls

// Check if in a Git repo
try {
  execSync('git rev-parse --is-inside-work-tree', { cwd: path, stdio: 'ignore' });
  console.log(`Starting auto-commit in ${path}`);
} catch (e) {
  console.error('Error: Not a Git repository. Please run in a Git repo.');
  process.exit(1);
}

// Function to check and commit changes
function commitChanges() {
  if (isProcessing) {
    console.log('Already processing, skipping...');
    return;
  }
  isProcessing = true;

  try {
    const status = execSync('git status --porcelain', { cwd: path }).toString();
    if (status.trim()) {
      console.log('Changes detected:', status.trim());
      execSync('git add .', { cwd: path });
      const lastCommit = execSync('git log -1 --oneline', { cwd: path }).toString();
      if (AMEND_COMMITS && lastCommit.includes('Auto-commit')) {
        execSync('git commit --amend --no-edit', { cwd: path });
        console.log('Amended previous auto-commit.');
      } else {
        execSync(`git commit -m "Auto-commit: ${new Date().toISOString()}"`, { cwd: path });
        console.log('Created new commit.');
      }
    } else {
      console.log('No changes to commit.');
    }
    lastActivity = Date.now();
  } catch (e) {
    console.error(`Commit error: ${e.message}`);
  } finally {
    isProcessing = false;
  }
}

// Watch files, ignoring .git
chokidar.watch(path, {
  ignoreInitial: false,
  ignored: [/.git\//, /.git$/], // Exclude .git directory and files
  awaitWriteFinish: { stabilityThreshold: 200, pollInterval: 100 }
})
.on('all', (event, filePath) => {
  console.log(`Event: ${event} on ${filePath}`);
  commitChanges();
})
.on('error', (error) => {
  console.error(`Watcher error: ${error.message}`);
});

// Timeout check
setInterval(() => {
  if (Date.now() - lastActivity >= TIMEOUT) {
    console.log('No activity for 10 minutes, exiting.');
    process.exit(0);
  }
}, 1000);