import 'dotenv/config';
import Database from 'better-sqlite3';

// Configuration
const BASE_URL = 'http://www.acinfinityserver.com';
const USER_AGENT = 'ACController/1.9.7 (com.acinfinity.humiture; build:533; iOS 18.5.0) Alamofire/5.10.2';
const POLL_INTERVAL_MS = 60000; // 60 seconds
const DB_FILE = 'ac_data.db';

// Database Setup
const db = new Database(DB_FILE);
db.exec(`
  CREATE TABLE IF NOT EXISTS readings (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    timestamp DATETIME DEFAULT CURRENT_TIMESTAMP,
    dev_id TEXT,
    dev_name TEXT,
    temp_c REAL,
    humidity REAL,
    vpd REAL,
    fan_speed INTEGER,
    on_speed INTEGER,
    off_speed INTEGER
  )
`);

const insertStmt = db.prepare(`
  INSERT INTO readings (dev_id, dev_name, temp_c, humidity, vpd, fan_speed, on_speed, off_speed)
  VALUES (?, ?, ?, ?, ?, ?, ?, ?)
`);

// State
let token = null;

// Helper to check credentials
if (!process.env.AC_EMAIL || !process.env.AC_PASSWORD) {
    console.error('Error: AC_EMAIL and AC_PASSWORD must be set in .env file');
    process.exit(1);
}

/**
 * Login to AC Infinity API
 */
async function login() {
    console.log('Logging in...');
    const params = new URLSearchParams();
    params.append('appEmail', process.env.AC_EMAIL);
    params.append('appPasswordl', process.env.AC_PASSWORD);

    try {
        const response = await fetch(`${BASE_URL}/api/user/appUserLogin`, {
            method: 'POST',
            headers: {
                'Content-Type': 'application/x-www-form-urlencoded',
                'User-Agent': USER_AGENT
            },
            body: params
        });

        const data = await response.json();
        if (data.code === 200) {
            console.log('Login successful.');
            return data.data.appId;
        } else {
            throw new Error(`Login failed: ${data.msg} (${data.code})`);
        }
    } catch (error) {
        console.error('Login error:', error.message);
        throw error;
    }
}

/**
 * Get All Devices
 */
async function getDeviceList(authToken) {
    const params = new URLSearchParams();
    params.append('userId', authToken);

    const response = await fetch(`${BASE_URL}/api/user/devInfoListAll`, {
        method: 'POST',
        headers: {
            'Content-Type': 'application/x-www-form-urlencoded',
            'User-Agent': USER_AGENT,
            'token': authToken,
            'phoneType': '1',
            'appVersion': '1.9.7'
        },
        body: params
    });

    const data = await response.json();
    if (data.code === 200) return data.data || [];
    throw new Error(`Get device list failed: ${data.msg}`);
}

/**
 * Get Settings
 */
async function getDeviceModeSettings(authToken, devId, port) {
    const params = new URLSearchParams();
    params.append('devId', devId);
    params.append('port', port.toString());

    const response = await fetch(`${BASE_URL}/api/dev/getdevModeSettingList`, {
        method: 'POST',
        headers: {
            'Content-Type': 'application/x-www-form-urlencoded',
            'User-Agent': USER_AGENT,
            'token': authToken,
            'phoneType': '1',
            'appVersion': '1.9.7',
            'minversion': '3.5'
        },
        body: params
    });

    const data = await response.json();
    if (data.code === 200) return data.data;
    console.warn(`Failed to get settings for ${devId}: ${data.msg}`);
    return null;
}

/**
 * Poll Function
 */
async function poll() {
    try {
        if (!token) {
            token = await login();
        }

        const devices = await getDeviceList(token);
        console.log(`[${new Date().toISOString()}] Found ${devices.length} devices.`);

        for (const device of devices) {
            const settings = await getDeviceModeSettings(token, device.devId, device.externalPort || 1);

            if (settings) {
                const tempC = settings.temperature ? settings.temperature / 100 : null;
                const hum = settings.humidity ? settings.humidity / 100 : null;
                const vpd = settings.vpdnums ? settings.vpdnums / 100 : null;

                insertStmt.run(
                    device.devId,
                    device.devName,
                    tempC,
                    hum,
                    vpd,
                    settings.speak,
                    settings.onSpead,
                    settings.offSpead
                );

                console.log(`Saved reading for ${device.devName || device.devId}: ${tempC}°C, ${hum}%, Fan: ${settings.speak}/10`);
            }
        }
    } catch (error) {
        console.error('Polling error:', error.message);
        // Reset token on error to force re-login next time if needed
        token = null;
    }
}

// Start Daemon
console.log(`Starting AC Infinity Data Daemon (Interval: ${POLL_INTERVAL_MS}ms)`);
poll(); // Initial run
setInterval(poll, POLL_INTERVAL_MS);