const ParameterizedSQL = require('loopback-connector').ParameterizedSQL;

module.exports = Self => {
    Self.remoteMethod('listSaleTracking', {
        description: 'Returns all ticket sale trackings',
        accessType: 'READ',
        accepts: [{
            arg: 'filter',
            type: 'object',
            description: 'Filter defining where and paginated data'
        }],
        returns: {
            type: ['object'],
            root: true
        },
        http: {
            path: `/listSaleTracking`,
            verb: 'get'
        }
    });

    Self.listSaleTracking = async(filter, options) => {
        const myOptions = {};

        if (typeof options == 'object')
            Object.assign(myOptions, options);

        const stmt = new ParameterizedSQL(`
            SELECT
                st.id,
                s.ticketFk,
                s.quantity,
                s.concept,
                s.itemFk,
                st.originalQuantity,
                st.created,
                st.workerFk,
                u.nickname userNickname,
                ste.name AS state
            FROM saleTracking st
                JOIN sale s ON s.id = st.saleFk
                JOIN worker w ON w.id = st.workerFk
                JOIN account.user u ON u.id = w.userFk
                JOIN state ste ON ste.id = st.stateFk`);

        stmt.merge(Self.makeSuffix(filter));

        const trackings = await Self.rawStmt(stmt, myOptions);

        const salesFilter = {
            include: [
                {
                    relation: 'item'
                }
            ],
            where: {ticketFk: filter.where.ticketFk}
        };

        const sales = await Self.app.models.Sale.find(salesFilter, myOptions);

        for (const tracking of trackings) {
            for (const sale of sales) {
                if (tracking.itemFk == sale.itemFk)
                    tracking.item = sale.item();
            }
        }

        return trackings;
    };
};