const db = require('vn-print/core/database');
const Email = require('vn-print/core/email');

module.exports = async function(request, response, next) {
    const reqArgs = request.body;

    if (!reqArgs.clientIds)
        throw new Error('The argument clientIds is required');
    if (!reqArgs.from)
        throw new Error('The argument from is required');
    if (!reqArgs.to)
        throw new Error('The argument to is required');

    response.status(200).json({
        message: 'Success'
    });

    for (const clientId of reqArgs.clientIds) {
        const client = await db.findOne(`
                SELECT
                        c.email,
                        eu.email salesPersonEmail
                    FROM client c
                        JOIN account.emailUser eu ON eu.userFk = c.salesPersonFk
                        JOIN ticket t ON t.clientFk = c.id
                        JOIN sale s ON s.ticketFk = t.id
                        JOIN item i ON i.id = s.itemFk
                        JOIN itemType it ON it.id = i.typeFk
                    WHERE c.id = ? 
                        AND it.isPackaging = FALSE
                        AND DATE(t.shipped) BETWEEN ? AND ?
                    GROUP BY c.id`, [clientId, reqArgs.from, reqArgs.to]);

        if (client) {
            const args = Object.assign({
                recipientId: clientId,
                recipient: client.email,
                replyTo: client.salesPersonEmail
            }, response.locals);

            const email = new Email('campaign-metrics', args);
            await email.send();
        }
    }
};