#!/usr/bin/env node
// Crucix Intelligence Engine — Dev Server
// Serves the Jarvis dashboard, runs sweep cycle, pushes live updates via SSE

import express from 'express';
import { readFileSync, writeFileSync, mkdirSync, existsSync } from 'fs';
import { dirname, join } from 'path';
import { fileURLToPath } from 'url';
import { exec } from 'child_process';
import config from './crucix.config.mjs';
import { fullBriefing } from './apis/briefing.mjs';
import { synthesize, generateIdeas } from './dashboard/inject.mjs';
import { MemoryManager } from './lib/delta/index.mjs';
import { createLLMProvider } from './lib/llm/index.mjs';
import { generateLLMIdeas } from './lib/llm/ideas.mjs';
import { TelegramAlerter } from './lib/alerts/telegram.mjs';

const __dirname = dirname(fileURLToPath(import.meta.url));
const ROOT = __dirname;
const RUNS_DIR = join(ROOT, 'runs');
const MEMORY_DIR = join(RUNS_DIR, 'memory');

// Ensure directories exist
for (const dir of [RUNS_DIR, MEMORY_DIR, join(MEMORY_DIR, 'cold')]) {
  if (!existsSync(dir)) mkdirSync(dir, { recursive: true });
}

// === State ===
let currentData = null;    // Current synthesized dashboard data
let lastSweepTime = null;  // Timestamp of last sweep
let sweepInProgress = false;
const startTime = Date.now();
const sseClients = new Set();

// === Delta/Memory ===
const memory = new MemoryManager(RUNS_DIR);

// === LLM + Telegram ===
const llmProvider = createLLMProvider(config.llm);
const telegramAlerter = new TelegramAlerter(config.telegram);

if (llmProvider) console.log(`[Crucix] LLM enabled: ${llmProvider.name} (${llmProvider.model})`);
if (telegramAlerter.isConfigured) console.log('[Crucix] Telegram alerts enabled');

// === Express Server ===
const app = express();
app.use(express.static(join(ROOT, 'dashboard/public')));

// Serve jarvis.html as the root page
app.get('/', (req, res) => {
  res.sendFile(join(ROOT, 'dashboard/public/jarvis.html'));
});

// API: current data
app.get('/api/data', (req, res) => {
  if (!currentData) return res.status(503).json({ error: 'No data yet — first sweep in progress' });
  res.json(currentData);
});

// API: health check
app.get('/api/health', (req, res) => {
  res.json({
    status: 'ok',
    uptime: Math.floor((Date.now() - startTime) / 1000),
    lastSweep: lastSweepTime,
    nextSweep: lastSweepTime
      ? new Date(new Date(lastSweepTime).getTime() + config.refreshIntervalMinutes * 60000).toISOString()
      : null,
    sweepInProgress,
    sourcesOk: currentData?.meta?.sourcesOk || 0,
    sourcesFailed: currentData?.meta?.sourcesFailed || 0,
    llmEnabled: !!config.llm.provider,
    llmProvider: config.llm.provider,
    telegramEnabled: !!(config.telegram.botToken && config.telegram.chatId),
    refreshIntervalMinutes: config.refreshIntervalMinutes,
  });
});

// SSE: live updates
app.get('/events', (req, res) => {
  res.writeHead(200, {
    'Content-Type': 'text/event-stream',
    'Cache-Control': 'no-cache',
    'Connection': 'keep-alive',
    'Access-Control-Allow-Origin': '*',
  });
  res.write('data: {"type":"connected"}\n\n');
  sseClients.add(res);
  req.on('close', () => sseClients.delete(res));
});

function broadcast(data) {
  const msg = `data: ${JSON.stringify(data)}\n\n`;
  for (const client of sseClients) {
    try { client.write(msg); } catch { sseClients.delete(client); }
  }
}

// === Sweep Cycle ===
async function runSweepCycle() {
  if (sweepInProgress) {
    console.log('[Crucix] Sweep already in progress, skipping');
    return;
  }

  sweepInProgress = true;
  broadcast({ type: 'sweep_start', timestamp: new Date().toISOString() });
  console.log(`\n${'='.repeat(60)}`);
  console.log(`[Crucix] Starting sweep at ${new Date().toLocaleTimeString()}`);
  console.log(`${'='.repeat(60)}`);

  try {
    // 1. Run the full briefing sweep
    const rawData = await fullBriefing();

    // 2. Save to runs/latest.json
    writeFileSync(join(RUNS_DIR, 'latest.json'), JSON.stringify(rawData, null, 2));
    lastSweepTime = new Date().toISOString();

    // 3. Synthesize into dashboard format
    console.log('[Crucix] Synthesizing dashboard data...');
    const synthesized = await synthesize(rawData);

    // 4. Delta computation + memory
    const delta = memory.addRun(synthesized);
    synthesized.delta = delta;

    // 5. LLM-powered trade ideas (LLM-only feature) — isolated so failures don't kill sweep
    if (llmProvider?.isConfigured) {
      try {
        console.log('[Crucix] Generating LLM trade ideas...');
        const previousIdeas = memory.getLastRun()?.ideas || [];
        const llmIdeas = await generateLLMIdeas(llmProvider, synthesized, delta, previousIdeas);
        if (llmIdeas) {
          synthesized.ideas = llmIdeas;
          synthesized.ideasSource = 'llm';
          console.log(`[Crucix] LLM generated ${llmIdeas.length} ideas`);
        } else {
          synthesized.ideas = [];
          synthesized.ideasSource = 'llm-failed';
        }
      } catch (llmErr) {
        console.error('[Crucix] LLM ideas failed (non-fatal):', llmErr.message);
        synthesized.ideas = [];
        synthesized.ideasSource = 'llm-failed';
      }
    } else {
      synthesized.ideas = [];
      synthesized.ideasSource = 'disabled';
    }

    // 6. Telegram alert evaluation (LLM-gated)
    if (telegramAlerter.isConfigured && llmProvider?.isConfigured && delta?.summary?.criticalChanges > 0) {
      telegramAlerter.evaluateAndAlert(llmProvider, delta, memory).catch(err => {
        console.error('[Crucix] Telegram alert error:', err.message);
      });
    }

    // Prune old alerted signals
    memory.pruneAlertedSignals();

    currentData = synthesized;

    // 6. Push to all connected browsers
    broadcast({ type: 'update', data: currentData });

    console.log(`[Crucix] Sweep complete — ${currentData.meta.sourcesOk}/${currentData.meta.sourcesQueried} sources OK`);
    console.log(`[Crucix] ${currentData.ideas.length} ideas (${synthesized.ideasSource}) | ${currentData.news.length} news | ${currentData.newsFeed.length} feed items`);
    if (delta?.summary) console.log(`[Crucix] Delta: ${delta.summary.totalChanges} changes, ${delta.summary.criticalChanges} critical, direction: ${delta.summary.direction}`);
    console.log(`[Crucix] Next sweep at ${new Date(Date.now() + config.refreshIntervalMinutes * 60000).toLocaleTimeString()}`);

  } catch (err) {
    console.error('[Crucix] Sweep failed:', err.message);
    broadcast({ type: 'sweep_error', error: err.message });
  } finally {
    sweepInProgress = false;
  }
}

// === Startup ===
async function start() {
  const port = config.port;

  console.log(`
  ╔══════════════════════════════════════════════╗
  ║           CRUCIX INTELLIGENCE ENGINE         ║
  ║          Local Palantir · 26 Sources         ║
  ╠══════════════════════════════════════════════╣
  ║  Dashboard:  http://localhost:${port}${' '.repeat(14 - String(port).length)}║
  ║  Health:     http://localhost:${port}/api/health${' '.repeat(4 - String(port).length)}║
  ║  Refresh:    Every ${config.refreshIntervalMinutes} min${' '.repeat(20 - String(config.refreshIntervalMinutes).length)}║
  ║  LLM:        ${(config.llm.provider || 'disabled').padEnd(31)}║
  ║  Alerts:     ${config.telegram.botToken ? 'Telegram enabled' : 'disabled'}${' '.repeat(config.telegram.botToken ? 14 : 23)}║
  ╚══════════════════════════════════════════════╝
  `);

  app.listen(port, () => {
    console.log(`[Crucix] Server running on http://localhost:${port}`);

    // Auto-open browser
    const openCmd = process.platform === 'win32' ? 'start ""' :
                    process.platform === 'darwin' ? 'open' : 'xdg-open';
    exec(`${openCmd} "http://localhost:${port}"`, (err) => {
      if (err) console.log('[Crucix] Could not auto-open browser:', err.message);
    });

    // Try to load existing data first for instant display
    try {
      const existing = JSON.parse(readFileSync(join(RUNS_DIR, 'latest.json'), 'utf8'));
      synthesize(existing).then(data => {
        currentData = data;
        console.log('[Crucix] Loaded existing data from runs/latest.json');
        broadcast({ type: 'update', data: currentData });
      }).catch(() => {});
    } catch { /* no existing data */ }

    // Run first sweep
    console.log('[Crucix] Running initial sweep...');
    runSweepCycle();

    // Schedule recurring sweeps
    setInterval(runSweepCycle, config.refreshIntervalMinutes * 60 * 1000);
  });
}

// Graceful error handling
process.on('unhandledRejection', (err) => {
  console.error('[Crucix] Unhandled rejection:', err.message || err);
});
process.on('uncaughtException', (err) => {
  console.error('[Crucix] Uncaught exception:', err.message || err);
});

start();