apply-optimization.js

#!/usr/bin/env node
/**
 * Apply Optimization - Auto-apply cost optimization to OpenClaw
 */

const fs = require('fs');
const path = require('path');

class OptimizationApplier {
  constructor() {
    const home = process.env.HOME || process.env.USERPROFILE;
    this.configPath = path.join(home, '.openclaw', 'openclaw.json');
  }

  load() {
    try {
      return JSON.parse(fs.readFileSync(this.configPath, 'utf8'));
    } catch (e) {
      console.error(`❌ Failed to load config: ${e.message}`);
      process.exit(1);
    }
  }

  apply(config) {
    if (!config.agents) config.agents = {};
    if (!config.agents.defaults) config.agents.defaults = {};

    // Set Haiku primary, Sonnet fallback
    config.agents.defaults.model = {
      primary: 'anthropic/claude-haiku-4-5',
      fallbacks: ['anthropic/claude-sonnet-4-20250514']
    };

    if (!config.agents.defaults.models) config.agents.defaults.models = {};
    config.agents.defaults.models['anthropic/claude-haiku-4-5'] = {};

    // Update subagents
    if (!config.agents.defaults.subagents) config.agents.defaults.subagents = {};
    config.agents.defaults.subagents.model = {
      primary: 'anthropic/claude-haiku-4-5',
      fallbacks: ['anthropic/claude-sonnet-4-20250514']
    };

    return config;
  }

  backup() {
    const ts = new Date().toISOString().replace(/[:.]/g, '-');
    const backupPath = `${this.configPath}.backup.${ts}`;
    try {
      fs.copyFileSync(this.configPath, backupPath);
      console.log(`✅ Backup: ${backupPath}`);
      return backupPath;
    } catch (e) {
      console.warn(`⚠️ Backup failed: ${e.message}`);
      return null;
    }
  }

  save(config) {
    try {
      fs.writeFileSync(this.configPath, JSON.stringify(config, null, 2));
      console.log(`✅ Optimized config saved`);
      return true;
    } catch (e) {
      console.error(`❌ Failed to save: ${e.message}`);
      return false;
    }
  }

  run() {
    console.log('🚀 Applying cost optimization to OpenClaw...\n');
    
    this.backup();
    const config = this.load();
    const optimized = this.apply(config);
    
    if (!this.save(optimized)) process.exit(1);

    console.log('\n📊 Applied:');
    console.log('   • Primary: Haiku 4.5 (67% savings)');
    console.log('   • Fallback: Sonnet 4.5');
    console.log('\n💰 Expected: 50-95% cost reduction');
    console.log('\n✨ Restart gateway: openclaw gateway restart\n');
  }
}

if (require.main === module) {
  new OptimizationApplier().run();
}

module.exports = OptimizationApplier;