#!/usr/bin/env tsx
import * as fs from 'fs';
import * as path from 'path';
import * as os from 'os';

/**
 * Script to migrate MCP server configuration from wrong location to correct location
 */
async function migrateMCPConfig(): Promise<void> {
  const wrongPath = path.join(os.homedir(), 'mcp-servers.json');
  const correctDir = path.join(os.homedir(), '.config', 'hashgraph-online');
  const correctPath = path.join(correctDir, 'mcp-servers.json');

  console.log('🔍 Checking for MCP config file...');
  console.log(`Wrong location: ${wrongPath}`);
  console.log(`Correct location: ${correctPath}`);

  if (!fs.existsSync(wrongPath)) {
    console.log('✅ No config file found at wrong location');
    return;
  }

  console.log('📁 Found config file at wrong location, migrating...');

  try {
    const configData = fs.readFileSync(wrongPath, 'utf8');
    
    let parsed;
    try {
      parsed = JSON.parse(configData);
      console.log(`✅ JSON is valid, contains ${parsed.length} server configurations`);
    } catch (parseError) {
      console.error('❌ JSON is corrupted:', parseError);
      console.log('🔧 Attempting to fix JSON...');
      
      let fixedData = configData.trim();
      if (!fixedData.endsWith('}]')) {
        console.log('Adding missing closing brackets...');
        fixedData += '}]';
      }
      
      try {
        parsed = JSON.parse(fixedData);
        console.log('✅ JSON fixed successfully');
      } catch (fixError) {
        console.error('❌ Could not fix JSON:', fixError);
        return;
      }
    }

    if (!fs.existsSync(correctDir)) {
      console.log('📁 Creating config directory...');
      fs.mkdirSync(correctDir, { recursive: true });
    }

    const formattedData = JSON.stringify(parsed, null, 2) + '\n';

    fs.writeFileSync(correctPath, formattedData, 'utf8');
    console.log('✅ Config file migrated to correct location');

    try {
      const verifyData = fs.readFileSync(correctPath, 'utf8');
      const verifyParsed = JSON.parse(verifyData.trim());
      console.log(`✅ Migration verified, ${verifyParsed.length} configurations in new location`);
    } catch (verifyError) {
      console.error('❌ Migration verification failed:', verifyError);
      return;
    }

    console.log('\n🗑️  Migration successful!');
    console.log(`Old file still exists at: ${wrongPath}`);
    console.log(`New file created at: ${correctPath}`);
    console.log('\nYou can safely delete the old file if everything is working correctly.');
    console.log(`To delete: rm "${wrongPath}"`);

  } catch (error) {
    console.error('❌ Migration failed:', error);
  }
}

migrateMCPConfig().catch(console.error);

export { migrateMCPConfig };