// src/models/syncControlModel.js
const pool = require('../data/database');
const { logError, logInfo } = require('../utils/logger');

class SyncControlModel {
    static async getWatermark(systemName) {
        try {
            const query = 'SELECT last_watermark FROM sync_control WHERE system_name = $1';
            const { rows } = await pool.query(query, [systemName]);
            if (rows.length === 0) {
                throw new Error(`Watermark para o sistema '${systemName}' não encontrada no banco de dados.`);
            }
            // Retorna no formato que o ServiceNow espera: 'YYYY-MM-DD HH:MM:SS'
            return rows[0].last_watermark.toISOString().replace('T', ' ').substring(0, 19);
        } catch (error) {
            logError(error, `Erro ao buscar watermark para ${systemName}`);
            throw error;
        }
    }

    static async setWatermark(systemName, watermark) {
        try {
            const query = `
                UPDATE sync_control 
                SET last_watermark = $1, last_run_at = NOW(), last_run_status = 'success'
                WHERE system_name = $2
            `;
            await pool.query(query, [watermark, systemName]);
            logInfo(`🌊 Nova marca d'água para '${systemName}' definida para: ${watermark}`);
        } catch (error) {
            logError(error, `Erro ao definir watermark para ${systemName}`);
            throw error;
        }
    }
}

module.exports = SyncControlModel;