// ⏳ THE TIME LORD: setup-graph.ts
// Point 2: Temporal Hypergraphs
// Defines the reality schema and timeline structures

import { neo4jService } from '../database/Neo4jService.js';

async function setupSchema() {
  console.log('⏳ [CHRONOS] Defining Reality Schema...');
  console.log('');

  try {
    // 1. Uniqueness Constraints (Point 1: SEGA)
    console.log('📋 Creating Uniqueness Constraints...');
    
    const constraints = [
      'CREATE CONSTRAINT file_id IF NOT EXISTS FOR (f:File) REQUIRE f.id IS UNIQUE',
      'CREATE CONSTRAINT agent_id IF NOT EXISTS FOR (a:Agent) REQUIRE a.id IS UNIQUE',
      'CREATE CONSTRAINT identity_email IF NOT EXISTS FOR (i:Identity) REQUIRE i.email IS UNIQUE',
      'CREATE CONSTRAINT event_id IF NOT EXISTS FOR (e:Event) REQUIRE e.id IS UNIQUE',
      'CREATE CONSTRAINT knowledge_id IF NOT EXISTS FOR (k:Knowledge) REQUIRE k.id IS UNIQUE'
    ];

    for (const constraint of constraints) {
      try {
        await neo4jService.write(constraint);
        console.log(`  ✓ ${constraint.split('FOR')[0].trim()}`);
      } catch (e: any) {
        if (!e.message?.includes('already exists')) {
          console.warn(`  ⚠ ${e.message?.slice(0, 60)}`);
        }
      }
    }

    // 2. Indexes for performance
    console.log('\n📊 Creating Indexes...');
    
    const indexes = [
      'CREATE INDEX file_name_idx IF NOT EXISTS FOR (f:File) ON (f.name)',
      'CREATE INDEX file_path_idx IF NOT EXISTS FOR (f:File) ON (f.path)',
      'CREATE INDEX agent_role_idx IF NOT EXISTS FOR (a:Agent) ON (a.role)',
      'CREATE INDEX event_timestamp_idx IF NOT EXISTS FOR (e:Event) ON (e.timestamp)',
      'CREATE INDEX identity_name_idx IF NOT EXISTS FOR (i:Identity) ON (i.name)',
      'CREATE INDEX knowledge_type_idx IF NOT EXISTS FOR (k:Knowledge) ON (k.type)'
    ];

    for (const index of indexes) {
      try {
        await neo4jService.write(index);
        console.log(`  ✓ ${index.split('FOR')[0].trim()}`);
      } catch (e: any) {
        if (!e.message?.includes('already exists')) {
          console.warn(`  ⚠ ${e.message?.slice(0, 60)}`);
        }
      }
    }

    // 3. Vector Index (Point 6: Dark Matter)
    console.log('\n🌑 Creating Vector Index (Dark Matter)...');
    try {
      await neo4jService.write(`
        CREATE VECTOR INDEX file_embeddings IF NOT EXISTS
        FOR (f:File) ON (f.embedding)
        OPTIONS {indexConfig: {
          \`vector.dimensions\`: 384,
          \`vector.similarity_function\`: 'cosine'
        }}
      `);
      console.log('  ✓ Vector Index Created (384 dimensions, cosine similarity)');
    } catch (e: any) {
      console.warn('  ⚠ Vector index creation skipped (requires Neo4j 5.x with Vector support)');
      console.warn(`    ${e.message?.slice(0, 80)}`);
    }

    // 4. Full-text indexes for search
    console.log('\n🔍 Creating Full-Text Indexes...');
    try {
      await neo4jService.write(`
        CREATE FULLTEXT INDEX file_content_search IF NOT EXISTS 
        FOR (f:File) ON EACH [f.name, f.contentPreview]
      `);
      console.log('  ✓ Full-text index on File content');
    } catch (e: any) {
      if (!e.message?.includes('already exists')) {
        console.warn(`  ⚠ Full-text index skipped: ${e.message?.slice(0, 60)}`);
      }
    }

    try {
      await neo4jService.write(`
        CREATE FULLTEXT INDEX knowledge_search IF NOT EXISTS 
        FOR (k:Knowledge) ON EACH [k.title, k.summary, k.content]
      `);
      console.log('  ✓ Full-text index on Knowledge content');
    } catch (e: any) {
      if (!e.message?.includes('already exists')) {
        console.warn(`  ⚠ Full-text index skipped: ${e.message?.slice(0, 60)}`);
      }
    }

    // 5. Create core agent nodes
    console.log('\n🤖 Creating Core Agent Nodes...');
    const coreAgents = [
      { id: 'SYSTEM_CORE', role: 'ARCHITECT', name: 'System Core' },
      { id: 'PROMETHEUS', role: 'ARCHITECT', name: 'Prometheus Engine' },
      { id: 'KNOWLEDGE_COMPILER', role: 'EXECUTOR', name: 'Knowledge Compiler' },
      { id: 'SWARM_CONTROLLER', role: 'ARCHITECT', name: 'Swarm Controller' },
      { id: 'ANGEL_PROXY', role: 'GUARDIAN', name: 'Angel Security Proxy' }
    ];

    for (const agent of coreAgents) {
      await neo4jService.write(`
        MERGE (a:Agent {id: $id})
        SET a.role = $role, a.name = $name, a.status = 'ACTIVE', a.createdAt = datetime()
      `, agent);
      console.log(`  ✓ Agent: ${agent.name} (${agent.role})`);
    }

    // 6. Create initial event
    console.log('\n📅 Recording Genesis Event...');
    await neo4jService.write(`
      CREATE (e:Event {
        id: 'GENESIS_' + toString(timestamp()),
        type: 'SYSTEM_INIT',
        description: 'Neural Singularity Schema Initialized',
        timestamp: datetime(),
        source: 'CHRONOS'
      })
    `);
    console.log('  ✓ Genesis event recorded');

    console.log('\n' + '='.repeat(60));
    console.log('✅ SCHEMA SETUP COMPLETE');
    console.log('='.repeat(60));
    console.log('\nNeural Singularity Graph is ready for:');
    console.log('  • Knowledge Compilation (SEGA)');
    console.log('  • Temporal Event Tracking (THG)');
    console.log('  • Swarm Consciousness (SCE)');
    console.log('  • Vector Similarity Search (CDMM)');
    console.log('  • Full-Text Search');
    console.log('');

  } catch (error: any) {
    console.error('\n❌ Schema Setup Failed:', error.message);
    process.exit(1);
  } finally {
    await neo4jService.close();
    process.exit(0);
  }
}

// Run if called directly
setupSchema();