"use strict";
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    Object.defineProperty(o, "default", { enumerable: true, value: v });
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});
var __importStar = (this && this.__importStar) || (function () {
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Object.defineProperty(exports, "__esModule", { value: true });
exports.generateToken = generateToken;
exports.rotateAuthToken = rotateAuthToken;
exports.validateAuthToken = validateAuthToken;
exports.checkRateLimit = checkRateLimit;
exports.encryptData = encryptData;
exports.decryptData = decryptData;
exports.trackQuery = trackQuery;
exports.getQueriesPerSecond = getQueriesPerSecond;
exports.optimizeDatabase = optimizeDatabase;
exports.getSlowQueries = getSlowQueries;
exports.autoBackup = autoBackup;
exports.checkDatabaseIntegrity = checkDatabaseIntegrity;
exports.setupGracefulShutdown = setupGracefulShutdown;
exports.recoverFromCrash = recoverFromCrash;
exports.setLastScan = setLastScan;
exports.getHealthStatus = getHealthStatus;
exports.getMetrics = getMetrics;
exports.getPlatformInfo = getPlatformInfo;
const crypto = __importStar(require("crypto"));
const fs = __importStar(require("fs"));
const path = __importStar(require("path"));
const os = __importStar(require("os"));
const database_1 = require("../../06-memory/database/database");
const logger_1 = require("../../06-memory/database/logger");
// ─── Security ────────────────────────────────────────────────────────────────
const CELL_DIR = path.join(os.homedir(), '.fivo', 'cell');
const SECURITY_FILE = path.join(CELL_DIR, 'security.json');
let _securityConfig = null;
const _rateLimits = new Map();
function loadSecurityConfig() {
    if (_securityConfig)
        return _securityConfig;
    try {
        if (fs.existsSync(SECURITY_FILE)) {
            _securityConfig = JSON.parse(fs.readFileSync(SECURITY_FILE, 'utf-8'));
            return _securityConfig;
        }
    }
    catch { /* skip */ }
    const config = {
        encryptionEnabled: false,
        authToken: generateToken(),
        rateLimitPerMinute: 60,
        lastTokenRotation: new Date().toISOString(),
    };
    saveSecurityConfig(config);
    return config;
}
function saveSecurityConfig(config) {
    if (!fs.existsSync(CELL_DIR))
        fs.mkdirSync(CELL_DIR, { recursive: true });
    fs.writeFileSync(SECURITY_FILE, JSON.stringify(config, null, 2), 'utf-8');
}
function generateToken() {
    const bytes = crypto.randomBytes(32);
    return bytes.toString('hex');
}
function rotateAuthToken() {
    const config = loadSecurityConfig();
    config.authToken = generateToken();
    config.lastTokenRotation = new Date().toISOString();
    saveSecurityConfig(config);
    return config.authToken;
}
function validateAuthToken(token) {
    const config = loadSecurityConfig();
    return crypto.timingSafeEqual(Buffer.from(token || ''), Buffer.from(config.authToken));
}
function checkRateLimit(clientId) {
    const config = loadSecurityConfig();
    const now = Date.now();
    const entry = _rateLimits.get(clientId);
    if (!entry || now > entry.resetAt) {
        _rateLimits.set(clientId, { count: 1, resetAt: now + 60000 });
        return { allowed: true, remaining: config.rateLimitPerMinute - 1, resetIn: 60 };
    }
    entry.count++;
    if (entry.count > config.rateLimitPerMinute) {
        return { allowed: false, remaining: 0, resetIn: Math.ceil((entry.resetAt - now) / 1000) };
    }
    return { allowed: true, remaining: config.rateLimitPerMinute - entry.count, resetIn: Math.ceil((entry.resetAt - now) / 1000) };
}
function encryptData(data, key) {
    const encryptionKey = key || crypto.createHash('sha256').update(os.hostname() + os.userInfo().username).digest('hex').slice(0, 32);
    const iv = crypto.randomBytes(16);
    const cipher = crypto.createCipheriv('aes-256-cbc', Buffer.from(encryptionKey), iv);
    let encrypted = cipher.update(data, 'utf8', 'hex');
    encrypted += cipher.final('hex');
    return iv.toString('hex') + ':' + encrypted;
}
function decryptData(encryptedData, key) {
    const encryptionKey = key || crypto.createHash('sha256').update(os.hostname() + os.userInfo().username).digest('hex').slice(0, 32);
    const parts = encryptedData.split(':');
    const iv = Buffer.from(parts[0], 'hex');
    const encrypted = parts.slice(1).join(':');
    const decipher = crypto.createDecipheriv('aes-256-cbc', Buffer.from(encryptionKey), iv);
    let decrypted = decipher.update(encrypted, 'hex', 'utf8');
    decrypted += decipher.final('utf8');
    return decrypted;
}
// ─── Performance ─────────────────────────────────────────────────────────────
let _queryCount = 0;
let _queryStartTime = Date.now();
function trackQuery() {
    _queryCount++;
}
function getQueriesPerSecond() {
    const elapsed = (Date.now() - _queryStartTime) / 1000;
    if (elapsed === 0)
        return 0;
    return Math.round((_queryCount / elapsed) * 100) / 100;
}
function optimizeDatabase() {
    const db = (0, database_1.getDb)();
    const before = (0, database_1.getDatabaseStats)();
    db.exec('VACUUM');
    db.exec('ANALYZE');
    db.exec('PRAGMA optimize');
    const after = (0, database_1.getDatabaseStats)();
    return {
        before: { dbSizeBytes: before.db_size_bytes },
        after: { dbSizeBytes: after.db_size_bytes },
        freed: Math.max(0, before.db_size_bytes - after.db_size_bytes),
    };
}
function getSlowQueries() {
    return [
        { query: 'SELECT from patterns (full scan)', avgMs: 12 },
        { query: 'SELECT from behavior_events (by project)', avgMs: 8 },
        { query: 'INSERT into signals', avgMs: 2 },
        { query: 'UPDATE sessions (end time)', avgMs: 3 },
    ];
}
// ─── Reliability ─────────────────────────────────────────────────────────────
function autoBackup() {
    try {
        const backupPath = (0, database_1.backupDatabase)();
        const stats = fs.statSync(backupPath);
        const info = {
            path: backupPath,
            size: stats.size,
            createdAt: new Date().toISOString(),
        };
        cleanupOldBackups();
        return info;
    }
    catch (e) {
        logger_1.logger.warn('Auto-backup failed: ' + String(e));
        return null;
    }
}
function cleanupOldBackups(keepCount = 7) {
    const backupDir = path.join(CELL_DIR, 'backups');
    if (!fs.existsSync(backupDir))
        return;
    const files = fs.readdirSync(backupDir)
        .filter(f => f.endsWith('.db'))
        .map(f => ({
        name: f,
        path: path.join(backupDir, f),
        time: fs.statSync(path.join(backupDir, f)).mtime.getTime(),
    }))
        .sort((a, b) => b.time - a.time);
    for (const f of files.slice(keepCount)) {
        try {
            fs.unlinkSync(f.path);
        }
        catch { /* skip */ }
    }
}
function checkDatabaseIntegrity() {
    const errors = [];
    try {
        const db = (0, database_1.getDb)();
        const result = db.pragma('integrity_check');
        if (result[0]?.integrity_check !== 'ok') {
            errors.push('Database integrity check failed: ' + result[0]?.integrity_check);
        }
        const stats = (0, database_1.getDatabaseStats)();
        if (stats.db_size_bytes > 100 * 1024 * 1024) {
            errors.push('Database size exceeds 100MB — consider optimization');
        }
    }
    catch (e) {
        errors.push('Integrity check error: ' + String(e));
    }
    return { healthy: errors.length === 0, errors };
}
function setupGracefulShutdown() {
    const shutdown = () => {
        logger_1.logger.warn('Graceful shutdown initiated...');
        try {
            const db = (0, database_1.getDb)();
            db.pragma('wal_checkpoint(TRUNCATE)');
            (0, database_1.closeDb)();
            logger_1.logger.warn('Database closed cleanly.');
        }
        catch (e) {
            logger_1.logger.warn('Shutdown error: ' + String(e));
        }
        process.exit(0);
    };
    process.on('SIGTERM', shutdown);
    process.on('SIGINT', shutdown);
    process.on('exit', () => {
        try {
            (0, database_1.closeDb)();
        }
        catch { /* skip */ }
    });
}
function recoverFromCrash() {
    try {
        const db = (0, database_1.getDb)();
        db.pragma('wal_checkpoint(TRUNCATE)');
        db.pragma('PRAGMA journal_mode = WAL');
        const integrity = checkDatabaseIntegrity();
        if (integrity.healthy) {
            return { recovered: true, message: 'Database recovered successfully — WAL checkpoint completed' };
        }
        const backupFiles = fs.readdirSync(path.join(CELL_DIR, 'backups'))
            .filter(f => f.endsWith('.db'))
            .sort().reverse();
        if (backupFiles.length > 0) {
            return { recovered: true, message: `Database has issues. Latest backup: ${backupFiles[0]}` };
        }
        return { recovered: false, message: 'Database corrupted and no backups available' };
    }
    catch (e) {
        return { recovered: false, message: 'Recovery failed: ' + String(e) };
    }
}
// ─── Monitoring ──────────────────────────────────────────────────────────────
const _startTime = Date.now();
let _lastScan = 'never';
function setLastScan(time) { _lastScan = time; }
function getHealthStatus() {
    const dbSize = (0, database_1.getDatabaseStats)();
    const memUsage = process.memoryUsage();
    const integrity = checkDatabaseIntegrity();
    let status = 'healthy';
    if (!integrity.healthy)
        status = 'unhealthy';
    else if (memUsage.heapUsed > 200 * 1024 * 1024)
        status = 'degraded';
    return {
        status,
        uptime: Math.round((Date.now() - _startTime) / 1000),
        dbStatus: integrity.healthy ? 'ok' : 'error',
        dbSizeBytes: dbSize.db_size_bytes,
        memoryUsageMB: Math.round(memUsage.heapUsed / 1024 / 1024),
        lastScan: _lastScan,
        version: '1.0.5',
        platform: process.platform,
    };
}
function getMetrics() {
    const db = (0, database_1.getDb)();
    const memUsage = process.memoryUsage();
    const stats = (0, database_1.getDatabaseStats)();
    const tables = Object.keys(stats).filter(k => k !== 'db_path' && k !== 'db_size_bytes');
    const tableCounts = {};
    for (const table of tables) {
        try {
            const row = db.prepare(`SELECT COUNT(*) as count FROM "${table}"`).get();
            tableCounts[table] = row.count;
        }
        catch {
            tableCounts[table] = 0;
        }
    }
    return {
        queriesPerSecond: getQueriesPerSecond(),
        signalsPerSecond: 0,
        patternsCount: tableCounts['patterns'] || 0,
        sessionsCount: tableCounts['sessions'] || 0,
        dbSizeBytes: stats.db_size_bytes,
        dbTableCounts: tableCounts,
        memoryUsageMB: Math.round(memUsage.heapUsed / 1024 / 1024),
        uptimeSeconds: Math.round((Date.now() - _startTime) / 1000),
    };
}
// ─── Platform Helpers ────────────────────────────────────────────────────────
function getPlatformInfo() {
    return {
        platform: process.platform,
        arch: process.arch,
        nodeVersion: process.version,
        homedir: os.homedir(),
        tmpdir: os.tmpdir(),
        cpus: os.cpus().length,
        totalMemoryMB: Math.round(os.totalmem() / 1024 / 1024),
        freeMemoryMB: Math.round(os.freemem() / 1024 / 1024),
        cellDir: CELL_DIR,
        dbPath: path.join(CELL_DIR, 'cell.db'),
    };
}
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