const db = require('../core/database');
const Email = require('../core/email');
const smtp = require('../core/smtp');
const config = require('../core/config');

module.exports = app => {
    app.get('/api/closure/all', async function(req, res, next) {
        try {
            res.status(200).json({
                message: 'Task executed successfully'
            });

            await db.rawSql(`DROP TEMPORARY TABLE IF EXISTS tmp.ticket_close`);
            await db.rawSql(`
            CREATE TEMPORARY TABLE tmp.ticket_close ENGINE = MEMORY (
                SELECT 
                    t.id AS ticketFk
                FROM expedition e
                    JOIN ticket t ON t.id = e.ticketFk
                    JOIN warehouse wh ON wh.id = t.warehouseFk AND wh.hasComission
                    JOIN ticketState ts ON ts.ticketFk = t.id
                    JOIN alertLevel al ON al.alertLevel = ts.alertLevel
                WHERE al.code = 'PACKED'
                    AND DATE(t.shipped) BETWEEN DATE_ADD(CURDATE(), INTERVAL -2 DAY) AND CURDATE()
                    AND t.refFk IS NULL
                GROUP BY e.ticketFk)`);

            await closeAll(req.args);
        } catch (error) {
            next(error);
        }
    });

    app.get('/api/closure/by-ticket', async function(req, res, next) {
        try {
            const reqArgs = req.args;
            if (!reqArgs.ticketId)
                throw new Error('The argument ticketId is required');

            res.status(200).json({
                message: 'Task executed successfully'
            });

            await db.rawSql(`DROP TEMPORARY TABLE IF EXISTS tmp.ticket_close`);
            await db.rawSql(`
            CREATE TEMPORARY TABLE tmp.ticket_close ENGINE = MEMORY (
                SELECT 
                    t.id AS ticketFk
                FROM expedition e
                    JOIN ticket t ON t.id = e.ticketFk
                    JOIN ticketState ts ON ts.ticketFk = t.id
                    JOIN alertLevel al ON al.alertLevel = ts.alertLevel
                WHERE al.code = 'PACKED'
                    AND t.id = :ticketId
                    AND t.refFk IS NULL
                GROUP BY e.ticketFk)`, {
                ticketId: reqArgs.ticketId
            });

            await closeAll(reqArgs);
        } catch (error) {
            next(error);
        }
    });

    app.get('/api/closure/by-agency', async function(req, res) {
        try {
            const reqArgs = req.args;
            if (!reqArgs.agencyModeId)
                throw new Error('The argument agencyModeId is required');

            if (!reqArgs.warehouseId)
                throw new Error('The argument warehouseId is required');

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

            res.status(200).json({
                message: 'Task executed successfully'
            });

            await db.rawSql(`DROP TEMPORARY TABLE IF EXISTS tmp.ticket_close`);
            await db.rawSql(`
            CREATE TEMPORARY TABLE tmp.ticket_close ENGINE = MEMORY (
                SELECT 
                    t.id AS ticketFk
                FROM expedition e
                    JOIN ticket t ON t.id = e.ticketFk
                    JOIN ticketState ts ON ts.ticketFk = t.id
                    JOIN alertLevel al ON al.alertLevel = ts.alertLevel
                WHERE al.code = 'PACKED'
                    AND t.agencyModeFk = :agencyModeId
                    AND t.warehouseFk = :warehouseId
                    AND DATE(t.shipped) BETWEEN DATE_ADD(:to, INTERVAL -2 DAY) AND :to
                    AND t.refFk IS NULL
                GROUP BY e.ticketFk)`, {
                agencyModeId: reqArgs.agencyModeId,
                warehouseId: reqArgs.warehouseId,
                to: reqArgs.to
            });

            await closeAll(reqArgs);
        } catch (error) {
            next(error);
        }
    });

    app.get('/api/closure/by-route', async function(req, res) {
        try {
            const reqArgs = req.args;
            if (!reqArgs.routeId)
                throw new Error('The argument routeId is required');

            res.status(200).json({
                message: 'Task executed successfully'
            });

            await db.rawSql(`DROP TEMPORARY TABLE IF EXISTS tmp.ticket_close`);
            await db.rawSql(`
            CREATE TEMPORARY TABLE tmp.ticket_close ENGINE = MEMORY (
                SELECT 
                    t.id AS ticketFk
                FROM expedition e
                    JOIN ticket t ON t.id = e.ticketFk
                    JOIN ticketState ts ON ts.ticketFk = t.id
                    JOIN alertLevel al ON al.alertLevel = ts.alertLevel
                WHERE al.code = 'PACKED'
                    AND t.routeFk = :routeId
                    AND t.refFk IS NULL
                GROUP BY e.ticketFk)`, {
                routeId: reqArgs.routeId
            });

            await closeAll(reqArgs);
        } catch (error) {
            next(error);
        }
    });

    async function closeAll(reqArgs) {
        const failedtickets = [];
        const tickets = await db.rawSql(`
            SELECT 
                t.id,
                t.clientFk,
                c.email recipient,
                c.salesPersonFk,
                c.isToBeMailed,
                c.hasToInvoice,
                co.hasDailyInvoice,
                eu.email salesPersonEmail
            FROM tmp.ticket_close tt
                JOIN ticket t ON t.id = tt.ticketFk
                JOIN client c ON c.id = t.clientFk
                JOIN province p ON p.id = c.provinceFk
                JOIN country co ON co.id = p.countryFk
                LEFT JOIN account.emailUser eu ON eu.userFk = c.salesPersonFk`);

        for (const ticket of tickets) {
            try {
                await db.rawSql(`CALL vn.ticket_closeByTicket(:ticketId)`, {
                    ticketId: ticket.id
                });

                const hasToInvoice = ticket.hasToInvoice && ticket.hasDailyInvoice;
                if (!ticket.salesPersonFk || !ticket.isToBeMailed || hasToInvoice) continue;

                if (!ticket.recipient) {
                    const body = `No se ha podido enviar el albarán <strong>${ticket.id}</strong> 
                        al cliente <strong>${ticket.clientFk}</strong> porque no tiene un email especificado.<br/><br/>
                        Para dejar de recibir esta notificación, asígnale un email o desactiva la notificación por email para este cliente.`;
                    smtp.send({
                        to: ticket.salesPersonEmail,
                        subject: 'No se ha podido enviar el albarán',
                        html: body
                    });

                    continue;
                }

                const args = Object.assign({
                    ticketId: ticket.id,
                    recipientId: ticket.clientFk,
                    recipient: ticket.recipient,
                    replyTo: ticket.salesPersonEmail
                }, reqArgs);

                const email = new Email('delivery-note-link', args);
                await email.send();
            } catch (error) {
                // Save tickets on a list of failed ids
                failedtickets.push({
                    id: ticket.id,
                    stacktrace: error
                });
            }
        }

        // Send email with failed tickets
        if (failedtickets.length > 0) {
            let body = 'This following tickets have failed:<br/><br/>';

            for (ticket of failedtickets) {
                body += `Ticket: <strong>${ticket.id}</strong>
                    <br/> <strong>${ticket.stacktrace}</strong><br/><br/>`;
            }

            smtp.send({
                to: config.app.reportEmail,
                subject: '[API] Nightly ticket closure report',
                html: body
            });
        }

        await db.rawSql(`DROP TEMPORARY TABLE tmp.ticket_close`);
    }
};