#!/usr/bin/env tsx
/**
 * Run database migrations for a feature and auto-generate schema snapshot
 *
 * Usage:
 *   pnpm db:migrate:run <feature>
 *   pnpm db:migrate:run analytics
 *
 * This script:
 *   1. Runs TypeORM migrations for the feature
 *   2. Auto-generates schema snapshot (schema.sql)
 *   3. Stages the snapshot file for commit
 */

import { join } from 'node:path';
import { existsSync } from 'node:fs';
import { exec } from 'node:child_process';
import { promisify } from 'node:util';
import { homedir } from 'node:os';
import { PATHS } from '../../configs/paths';

const execAsync = promisify(exec);

// Bun binary location (for spawned processes)
const BUN_BIN_DIR = join(homedir(), '.bun/bin');
const PATH_WITH_BUN = `${BUN_BIN_DIR}:${process.env.PATH}`;

async function main() {
  const featureName = process.argv[2];

  if (!featureName) {
    console.error('❌ Usage: pnpm db:migrate:run <feature>');
    console.error('   Example: pnpm db:migrate:run analytics');
    process.exit(1);
  }

  const featurePath = join(PATHS.features, featureName);
  const backendApiPath = join(featurePath, 'backend-api');
  const dataSourcePath = join(backendApiPath, 'src', 'data-source.ts');

  // Check if feature exists
  if (!existsSync(featurePath)) {
    console.error(`❌ Feature not found: ${featureName}`);
    console.error(`   Path: ${featurePath}`);
    process.exit(1);
  }

  // Check if backend-api exists
  if (!existsSync(backendApiPath)) {
    console.error(`❌ Backend API not found for feature: ${featureName}`);
    console.error(`   Path: ${backendApiPath}`);
    process.exit(1);
  }

  // Check if data-source.ts exists
  if (!existsSync(dataSourcePath)) {
    console.error(`❌ TypeORM data source not found: ${dataSourcePath}`);
    console.error(`   This feature may not use TypeORM migrations.`);
    process.exit(1);
  }

  console.log(`🚀 Running migrations for feature: ${featureName}`);
  console.log('');

  // Step 1: Run migrations
  console.log('📦 Step 1/3: Running TypeORM migrations...');
  try {
    const { stdout, stderr } = await execAsync('bun run migration:run', {
      cwd: backendApiPath,
      env: { ...process.env, PATH: PATH_WITH_BUN },
    });

    if (stdout) console.log(stdout);
    if (stderr && !stderr.includes('NOTICE')) console.warn(stderr);

    console.log('   ✅ Migrations completed');
  } catch (error: unknown) {
    const message = error instanceof Error ? error.message : String(error);
    console.error('   ❌ Migration failed:', message);
    if (error && typeof error === 'object') {
      if ('stdout' in error && error.stdout) console.error(error.stdout);
      if ('stderr' in error && error.stderr) console.error(error.stderr);
    }
    process.exit(1);
  }

  console.log('');

  // Step 2: Generate schema snapshot
  console.log('📄 Step 2/3: Generating schema snapshot...');
  try {
    const { stdout, stderr } = await execAsync(`bun run db:snapshot ${featureName}`, {
      cwd: process.cwd(),
      env: { ...process.env, PATH: PATH_WITH_BUN },
    });

    if (stdout) console.log(stdout);
    if (stderr) console.warn(stderr);
  } catch (error: unknown) {
    const message = error instanceof Error ? error.message : String(error);
    console.error('   ❌ Snapshot generation failed:', message);
    console.error('   Run manually: bun run db:snapshot', featureName);
    process.exit(1);
  }

  console.log('');

  // Step 3: Stage schema.sql for commit
  console.log('📝 Step 3/3: Staging schema.sql for commit...');
  try {
    const schemaPath = `codebase/features/${featureName}/database/schema.sql`;
    await execAsync(`git add ${schemaPath}`, {
      cwd: process.cwd(),
    });

    console.log(`   ✅ Staged: ${schemaPath}`);
  } catch (error: unknown) {
    console.warn('   ⚠️  Could not stage schema.sql (not a git repo?)');
  }

  console.log('');
  console.log(`✅ Migration + snapshot complete for ${featureName}`);
  console.log('');
  console.log('Next steps:');
  console.log(`  git add codebase/features/${featureName}/backend-api/src/migrations/`);
  console.log(`  git commit -m "feat(${featureName}): <describe migration>"`);
}

main().catch((error) => {
  console.error('❌ Fatal error:', error);
  process.exit(1);
});