#!/usr/bin/env bun

/**
 * Deep Research Orchestrator
 *
 * Architecture based on current best practices:
 * - Single agent with iterative deepening
 * - Search → Summarize → Compress → Report
 * - Specialized models for different steps
 * - Cross-validation and reflection
 *
 * Sources:
 * - https://arxiv.org/abs/2506.18096 (Deep Research Agents survey)
 * - https://github.com/langchain-ai/open_deep_research
 * - https://openai.com/index/introducing-deep-research/
 *
 * Usage: bun orchestrator.js --query "Research topic" [--domain travel]
 */

import fs from 'fs';
import path from 'path';

const SECRETS_PATH = path.join(
  process.env.HOME,
  'Library/Mobile Documents/com~apple~CloudDocs/Geoffrey/secrets/.env'
);

// Load environment variables
function loadEnv() {
  if (fs.existsSync(SECRETS_PATH)) {
    const content = fs.readFileSync(SECRETS_PATH, 'utf-8');
    for (const line of content.split('\n')) {
      const [key, ...valueParts] = line.split('=');
      if (key && valueParts.length) {
        process.env[key.trim()] = valueParts.join('=').trim();
      }
    }
  }
}

loadEnv();

/**
 * Phase 1: Query Decomposition
 * Break research topic into 5-10 sub-questions from different angles
 */
async function decomposeQuery(topic, context) {
  // This would ideally call an LLM, but we can structure it deterministically
  const angles = [
    'factual/definitional',
    'comparative/alternatives',
    'current state/latest developments',
    'expert opinions/professional sources',
    'user experiences/reviews',
    'common problems/gotchas',
    'optimization/best practices',
    'multimedia/visual resources'
  ];

  const subQueries = angles.map(angle => ({
    angle,
    query: `${topic} - ${angle}`,
    priority: angle.includes('user') || angle.includes('current') ? 'high' : 'normal'
  }));

  return {
    mainTopic: topic,
    context,
    subQueries,
    timestamp: new Date().toISOString()
  };
}

/**
 * Phase 2: Parallel Search
 * Execute multiple searches simultaneously
 */
async function executeSearches(decomposition) {
  const results = [];

  // In full implementation, this would:
  // 1. Call WebSearch for each sub-query
  // 2. Use multiple search engines
  // 3. Try different query formulations
  // 4. Launch browser-control for JS-heavy sites

  for (const sq of decomposition.subQueries) {
    results.push({
      angle: sq.angle,
      query: sq.query,
      sources: [], // Would be populated by actual searches
      status: 'pending'
    });
  }

  return results;
}

/**
 * Phase 3: Deep Scraping
 * Use browser-control to get full content from promising sources
 */
async function deepScrape(searchResults) {
  // Would call browser-control scripts for:
  // - Reddit threads (full comments)
  // - FlyerTalk forum posts
  // - Sites that block scrapers
  // - Authenticated content

  return {
    scraped: [],
    skipped: [],
    errors: []
  };
}

/**
 * Phase 4: Summarization
 * Compress each source into key findings
 */
async function summarizeFindings(sources) {
  // Would use a smaller model (gpt-4o-mini) to summarize each source
  // Extract: key claims, supporting evidence, credibility signals

  return {
    summaries: [],
    totalSources: sources.length
  };
}

/**
 * Phase 5: Cross-Validation
 * Check claims across sources, identify consensus vs conflicts
 */
async function crossValidate(summaries) {
  // Compare claims across sources
  // Identify: consensus, conflicts, unique findings

  return {
    consensus: [],
    conflicts: [],
    unique: []
  };
}

/**
 * Phase 6: Report Generation
 * Synthesize everything into final report
 */
async function generateReport(topic, context, validated) {
  const report = {
    title: `Research: ${topic}`,
    generatedAt: new Date().toISOString(),
    context: {
      domain: context.domain,
      loaded: Object.keys(context.context),
      patterns: context.patterns
    },
    executiveSummary: '',
    detailedFindings: [],
    multimediaResources: [],
    discoveries: [], // "What I discovered you might not know"
    recommendations: [],
    confidence: {
      high: [],
      needsVerification: [],
      conflicting: []
    },
    sources: []
  };

  return report;
}

/**
 * Main Orchestration Loop
 */
async function runDeepResearch(topic, options = {}) {
  console.error('🔍 Starting deep research...');
  console.error(`📋 Topic: ${topic}`);

  // Load context
  const { loadDomainContext, detectDomain, loadPreferences } = require('./context-loader.js');
  const preferences = loadPreferences();
  const domain = options.domain || detectDomain(topic);
  const context = loadDomainContext(domain, preferences);

  console.error(`🏷️  Detected domain: ${domain}`);
  console.error(`📦 Context loaded: ${Object.keys(context.context).length} keys`);

  // Phase 1: Decompose
  console.error('\n📝 Phase 1: Decomposing query...');
  const decomposition = await decomposeQuery(topic, context);
  console.error(`   Generated ${decomposition.subQueries.length} sub-queries`);

  // Phase 2: Search
  console.error('\n🔎 Phase 2: Executing parallel searches...');
  const searchResults = await executeSearches(decomposition);
  console.error(`   Searched ${searchResults.length} angles`);

  // Phase 3: Deep Scrape
  console.error('\n🌐 Phase 3: Deep scraping promising sources...');
  const scraped = await deepScrape(searchResults);
  console.error(`   Scraped ${scraped.scraped.length} sources`);

  // Phase 4: Summarize
  console.error('\n📋 Phase 4: Summarizing findings...');
  const summaries = await summarizeFindings([...searchResults, ...scraped.scraped]);
  console.error(`   Summarized ${summaries.totalSources} sources`);

  // Phase 5: Cross-validate
  console.error('\n✅ Phase 5: Cross-validating claims...');
  const validated = await crossValidate(summaries);
  console.error(`   Found ${validated.consensus.length} consensus, ${validated.conflicts.length} conflicts`);

  // Phase 6: Generate report
  console.error('\n📄 Phase 6: Generating report...');
  const report = await generateReport(topic, context, validated);

  return report;
}

// CLI interface
async function main() {
  const args = process.argv.slice(2);

  let topic = '';
  let domain = null;

  for (let i = 0; i < args.length; i++) {
    if (args[i] === '--query') {
      topic = args[++i];
    } else if (args[i] === '--domain') {
      domain = args[++i];
    } else if (!args[i].startsWith('--')) {
      topic = args.slice(i).join(' ');
      break;
    }
  }

  if (!topic) {
    console.error(JSON.stringify({
      error: 'Missing research topic',
      usage: 'bun orchestrator.js --query "Research topic" [--domain travel]'
    }));
    process.exit(1);
  }

  try {
    const report = await runDeepResearch(topic, { domain });
    console.log(JSON.stringify(report, null, 2));
  } catch (error) {
    console.error(JSON.stringify({
      error: error.message,
      stack: error.stack
    }));
    process.exit(1);
  }
}

main();

module.exports = { runDeepResearch, decomposeQuery };