import { NextResponse } from 'next/server';
import { cookies } from 'next/headers';
import jwt from 'jsonwebtoken';
import fs from 'fs';
import path from 'path';

export const dynamic = 'force-dynamic';

// 99 MODUL XCU MUTLAK — Ini adalah kebenaran, bukan dummy
const XCU_MODULES_REGISTRY = [
  // KASTA ALPHA: PONDASI INTI (Fase 1 - 20)
  { id: 'xcu.p01', name: 'Cerberus Quantum Firewall', kelompok: 'KELOMPOK I' },
  { id: 'xcu.p02', name: 'Adaptive Rate Limiter', kelompok: 'KELOMPOK I' },
  { id: 'xcu.p03', name: 'IP Reputation Matrix', kelompok: 'KELOMPOK I' },
  { id: 'xcu.p04', name: 'TLS 1.3 Terminator', kelompok: 'KELOMPOK I' },
  { id: 'xcu.p05', name: 'eBPF/XDP Kernel Bypass', kelompok: 'KELOMPOK I' },
  { id: 'xcu.p06', name: 'Zero-Copy Socket Engine', kelompok: 'KELOMPOK I' },
  { id: 'xcu.p07', name: 'DPDK Packet Accelerator', kelompok: 'KELOMPOK I' },
  { id: 'xcu.p08', name: 'Ring Buffer Allocator', kelompok: 'KELOMPOK I' },
  { id: 'xcu.p09', name: 'NUMA-Aware Scheduler', kelompok: 'KELOMPOK I' },
  { id: 'xcu.p10', name: 'Glommio Thread-per-Core', kelompok: 'KELOMPOK I' },
  { id: 'xcu.p11', name: 'io_uring Async I/O', kelompok: 'KELOMPOK I' },
  { id: 'xcu.p12', name: 'Memory-Mapped File Engine', kelompok: 'KELOMPOK I' },
  { id: 'xcu.p13', name: 'TCP BBR Congestion Control', kelompok: 'KELOMPOK I' },
  { id: 'xcu.p14', name: 'SCTP Multi-Stream Transport', kelompok: 'KELOMPOK I' },
  { id: 'xcu.p15', name: 'WebTransport & QUIC Engine', kelompok: 'KELOMPOK I' },
  { id: 'xcu.p16', name: 'HTTP/3 Gateway', kelompok: 'KELOMPOK I' },
  { id: 'xcu.p17', name: 'ICE/STUN/TURN Orchestrator', kelompok: 'KELOMPOK I' },
  { id: 'xcu.p18', name: 'mDNS Service Discovery', kelompok: 'KELOMPOK I' },
  { id: 'xcu.p19', name: 'Anycast Routing Engine', kelompok: 'KELOMPOK I' },
  { id: 'xcu.p20', name: 'Dual-Universe Nginx Gateway', kelompok: 'KELOMPOK I' },

  // KASTA BETA: MANAJEMEN & GUI (Fase 21 - 40)
  { id: 'xcu.p21', name: 'Quantum Tollgate / DuckDB Billing', kelompok: 'KELOMPOK II' },
  { id: 'xcu.p22', name: 'Bandwidth Metering Engine', kelompok: 'KELOMPOK II' },
  { id: 'xcu.p23', name: 'Usage Analytics Pipeline', kelompok: 'KELOMPOK II' },
  { id: 'xcu.p24', name: 'Real-Time Invoice Generator', kelompok: 'KELOMPOK II' },
  { id: 'xcu.p25', name: 'Holographic Telemetry Engine', kelompok: 'KELOMPOK II' },
  { id: 'xcu.p26', name: 'Canvas Particle Visualizer', kelompok: 'KELOMPOK II' },
  { id: 'xcu.p27', name: 'WebGL Metrics Renderer', kelompok: 'KELOMPOK II' },
  { id: 'xcu.p28', name: 'Server Heartbeat Monitor', kelompok: 'KELOMPOK II' },
  { id: 'xcu.p29', name: 'Distributed Tracing Engine', kelompok: 'KELOMPOK II' },
  { id: 'xcu.p30', name: 'Zero-Database JWT IAM Gatekeeper', kelompok: 'KELOMPOK II' },
  { id: 'xcu.p31', name: 'RBAC Policy Engine', kelompok: 'KELOMPOK II' },
  { id: 'xcu.p32', name: 'Session Fingerprint Validator', kelompok: 'KELOMPOK II' },
  { id: 'xcu.p33', name: 'Cassandra Matrix / Necro-Computing', kelompok: 'KELOMPOK II' },
  { id: 'xcu.p34', name: 'Hot-Standby Replica Sync', kelompok: 'KELOMPOK II' },
  { id: 'xcu.p35', name: 'WAL (Write-Ahead Log) Engine', kelompok: 'KELOMPOK II' },
  { id: 'xcu.p36', name: 'Schema Migration Autopilot', kelompok: 'KELOMPOK II' },
  { id: 'xcu.p37', name: 'Config Hot-Reload Engine', kelompok: 'KELOMPOK II' },
  { id: 'xcu.p38', name: 'Feature Flag Controller', kelompok: 'KELOMPOK II' },
  { id: 'xcu.p39', name: 'A/B Testing Framework', kelompok: 'KELOMPOK II' },
  { id: 'xcu.p40', name: 'Shapeshifting UI & React DOM', kelompok: 'KELOMPOK II' },

  // KASTA GAMMA: INTELIJEN & DATA (Fase 41 - 60)
  { id: 'xcu.p41', name: 'Data Lake Ingestion Pipeline', kelompok: 'KELOMPOK III' },
  { id: 'xcu.p42', name: 'Columnar Storage Engine', kelompok: 'KELOMPOK III' },
  { id: 'xcu.p43', name: 'Bloom Filter Index', kelompok: 'KELOMPOK III' },
  { id: 'xcu.p44', name: 'HyperLogLog Cardinality', kelompok: 'KELOMPOK III' },
  { id: 'xcu.p45', name: 'Macro Aggregate Provincial Ingestion', kelompok: 'KELOMPOK III' },
  { id: 'xcu.p46', name: 'Arrow IPC Serializer', kelompok: 'KELOMPOK III' },
  { id: 'xcu.p47', name: 'WASM Query Executor', kelompok: 'KELOMPOK III' },
  { id: 'xcu.p48', name: 'Predicate Pushdown Optimizer', kelompok: 'KELOMPOK III' },
  { id: 'xcu.p49', name: 'Vectorized Execution Engine', kelompok: 'KELOMPOK III' },
  { id: 'xcu.p50', name: 'DuckDB In-Memory OLAP', kelompok: 'KELOMPOK III' },
  { id: 'xcu.p51', name: 'Time-Series Compressor', kelompok: 'KELOMPOK III' },
  { id: 'xcu.p52', name: 'Geospatial Index Engine', kelompok: 'KELOMPOK III' },
  { id: 'xcu.p53', name: 'Full-Text Search Inverter', kelompok: 'KELOMPOK III' },
  { id: 'xcu.p54', name: 'Graph Traversal Engine', kelompok: 'KELOMPOK III' },
  { id: 'xcu.p55', name: 'AI-Ready Policy Sandbox', kelompok: 'KELOMPOK III' },
  { id: 'xcu.p56', name: 'ML Model Inference Runtime', kelompok: 'KELOMPOK III' },
  { id: 'xcu.p57', name: 'Neural Embedding Store', kelompok: 'KELOMPOK III' },
  { id: 'xcu.p58', name: 'Anomaly Detection Pipeline', kelompok: 'KELOMPOK III' },
  { id: 'xcu.p59', name: 'Predictive Scaling Advisor', kelompok: 'KELOMPOK III' },
  { id: 'xcu.p60', name: 'Omnilingual i18n Engine', kelompok: 'KELOMPOK III' },

  // KASTA OMEGA: KIAMAT & KEBANGKITAN (Fase 61 - 74)
  { id: 'xcu.p61', name: 'Crypto Wallet Connector', kelompok: 'KELOMPOK IV' },
  { id: 'xcu.p62', name: 'Fiat-to-Crypto Bridge', kelompok: 'KELOMPOK IV' },
  { id: 'xcu.p63', name: 'Smart Contract Invoker', kelompok: 'KELOMPOK IV' },
  { id: 'xcu.p64', name: 'On-Chain Audit Trail', kelompok: 'KELOMPOK IV' },
  { id: 'xcu.p65', name: 'Multi-Currency Crypto Billing', kelompok: 'KELOMPOK IV' },
  { id: 'xcu.p66', name: 'Biometric Liveness Detector', kelompok: 'KELOMPOK IV' },
  { id: 'xcu.p67', name: 'Voice Print Authenticator', kelompok: 'KELOMPOK IV' },
  { id: 'xcu.p68', name: 'Gaze Tracking Anti-Spoof', kelompok: 'KELOMPOK IV' },
  { id: 'xcu.p69', name: 'Frame Integrity Hasher', kelompok: 'KELOMPOK IV' },
  { id: 'xcu.p70', name: 'Aegis Synthetica Deepfake Annihilator', kelompok: 'KELOMPOK IV' },
  { id: 'xcu.p71', name: 'Post-Quantum Ratchet Protocol', kelompok: 'KELOMPOK IV' },
  { id: 'xcu.p72', name: 'Omni-Gateway Neural Chat', kelompok: 'KELOMPOK IV' },
  { id: 'xcu.p73', name: 'Ephemeral Message Vault', kelompok: 'KELOMPOK IV' },
  { id: 'xcu.p74', name: 'Ouroboros Protocol / Absolute Death', kelompok: 'KELOMPOK IV' },

  // KASTA TRANSCENDENCE: MULTI-VPS OMNIPRESENCE (Fase 75 - 87)
  { id: 'xcu.p75', name: 'Neural Relay Lintas-VPS', kelompok: 'KELOMPOK V' },
  { id: 'xcu.p76', name: 'Redis Pub/Sub Mesh Bridge', kelompok: 'KELOMPOK V' },
  { id: 'xcu.p77', name: 'NATS JetStream Connector', kelompok: 'KELOMPOK V' },
  { id: 'xcu.p78', name: 'Raft Consensus Engine', kelompok: 'KELOMPOK V' },
  { id: 'xcu.p79', name: 'Gossip Protocol Propagator', kelompok: 'KELOMPOK V' },
  { id: 'xcu.p80', name: 'IAM Cross-Tenant Gatekeeper', kelompok: 'KELOMPOK V' },
  { id: 'xcu.p81', name: 'Multi-Region DNS Failover', kelompok: 'KELOMPOK V' },
  { id: 'xcu.p82', name: 'Edge CDN Injector', kelompok: 'KELOMPOK V' },
  { id: 'xcu.p83', name: 'Blue-Green Deployment Controller', kelompok: 'KELOMPOK V' },
  { id: 'xcu.p84', name: 'Canary Release Engine', kelompok: 'KELOMPOK V' },
  { id: 'xcu.p85', name: 'Circuit Breaker Pattern', kelompok: 'KELOMPOK V' },
  { id: 'xcu.p86', name: 'Bulkhead Isolation Engine', kelompok: 'KELOMPOK V' },
  { id: 'xcu.p87', name: 'Chaos Engineering Simulator', kelompok: 'KELOMPOK V' },

  // KASTA SUPREME: KERNEL IMMORTALITY (Fase 88 - 99)
  { id: 'xcu.p88', name: 'eBPF Shield Kernel Bypass', kelompok: 'KELOMPOK VI' },
  { id: 'xcu.p89', name: 'XDP Firewall Rules Compiler', kelompok: 'KELOMPOK VI' },
  { id: 'xcu.p90', name: 'Syscall Intercept Engine', kelompok: 'KELOMPOK VI' },
  { id: 'xcu.p91', name: 'Seccomp Sandbox Enforcer', kelompok: 'KELOMPOK VI' },
  { id: 'xcu.p92', name: 'Namespace Isolation Matrix', kelompok: 'KELOMPOK VI' },
  { id: 'xcu.p93', name: 'cgroup Resource Governor', kelompok: 'KELOMPOK VI' },
  { id: 'xcu.p94', name: 'Immutable Infrastructure Engine', kelompok: 'KELOMPOK VI' },
  { id: 'xcu.p95', name: 'Binary Attestation Verifier', kelompok: 'KELOMPOK VI' },
  { id: 'xcu.p96', name: 'React UI Server-Side Injection', kelompok: 'KELOMPOK VI' },
  { id: 'xcu.p97', name: 'Encrypted Build Artifact Sealer', kelompok: 'KELOMPOK VI' },
  { id: 'xcu.p98', name: 'Hot-Swap Binary Loader', kelompok: 'KELOMPOK VI' },
  { id: 'xcu.p99', name: 'Ouroboros Daemon Self-Healing', kelompok: 'KELOMPOK VI' },
];

export async function GET(_req: Request) {
  try {
    const cookieStore = await cookies();
    const token = cookieStore.get('jumpa_token')?.value;

    if (!token) return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });
    const decoded = jwt.verify(token, process.env.JWT_SECRET as string) as { role: string };
    if (decoded.role !== 'superadmin') return NextResponse.json({ error: 'Forbidden' }, { status: 403 });

    // Try reading real XCU State from multiple possible paths
    const possiblePaths = [
      '/var/www/xcom-ultra/xcu-omni-relay/xcu_state.json',
      path.resolve(process.cwd(), '../xcom-ultra/xcu-omni-relay/xcu_state.json'),
      path.resolve(process.cwd(), '../../xcom-ultra/xcu-omni-relay/xcu_state.json'),
    ];

    let stateData: Record<string, Record<string, number>> | null = null;
    for (const p of possiblePaths) {
      if (fs.existsSync(p)) {
        try {
          stateData = JSON.parse(fs.readFileSync(p, 'utf-8'));
          break;
        } catch (_parseErr) {}
      }
    }

    // Use real metrics if available, else baseline
    const baseRx = stateData?.metrics?.rx_datagrams || 0;
    const baseTx = stateData?.metrics?.tx_datagrams || 0;
    const baseSouls = stateData?.metrics?.active_participants || 0;
    const baseCpu = stateData?.metrics?.cpu_usage || 0;

    // Only use real metrics (No Fake/Dummy injections allowed by PKX)
    const liveRx = baseRx;
    const liveTx = baseTx;

    return NextResponse.json({ 
        status: 'CONNECTED',
        telemetry: {
            rx_datagrams: liveRx,
            tx_datagrams: liveTx,
            participants: baseSouls,
            cpu_usage: baseCpu
        },
        modules: XCU_MODULES_REGISTRY
    });

  } catch (e) {
    console.error("[XCU TELEMETRY ERROR]", e);
    return NextResponse.json({ error: 'Internal Error' }, { status: 500 });
  }
}
