const Component = require(`vn-print/core/component`);
const reportBody = new Component('report-body');
const reportFooter = new Component('report-footer');
const db = require(`vn-print/core/database`);

module.exports = {
    name: 'extra-community',
    async serverPrefetch() {
        this.filters = this.$options.filters;
        const args = {
            landedTo: this.landedEnd,
            shippedFrom: this.shippedStart,
            continent: this.continent,
            id: this.id,
            agencyModeFk: this.agencyModeFk,
            warehouseInFk: this.warehouseInFk,
            warehouseOutFk: this.warehouseOutFk,
            totalEntries: this.totalEntries,
            ref: this.ref,
            cargoSupplierFk: this.cargoSupplierFk
        };

        const travels = await this.fetchTravels(args);
        const travelIds = travels.map(travel => travel.id);
        const entries = await this.fetchEntries(travelIds);

        const map = new Map();
        for (let travel of travels)
            map.set(travel.id, travel);

        for (let entry of entries) {
            const travel = map.get(entry.travelFk);
            if (!travel.entries) travel.entries = [];
            travel.entries.push(entry);
        }

        this.travels = travels;

        if (!this.travels)
            throw new Error('Something went wrong');
    },
    computed: {
        dated: function() {
            return this.filters.date(new Date(), '%d-%m-%Y');
        },
        landedEnd: function() {
            if (!this.landedTo) return;

            return this.filters.date(this.landedTo, '%Y-%m-%d');
        },
        shippedStart: function() {
            if (!this.shippedFrom) return;

            return this.filters.date(this.shippedFrom, '%Y-%m-%d');
        }
    },
    methods: {
        fetchTravels(args) {
            const where = db.buildWhere(args, (key, value) => {
                switch (key) {
                case 'shippedFrom':
                    return `t.shipped >= ${value}`;
                case 'landedTo':
                    return `t.landed <= ${value}`;
                case 'continent':
                    return `cnt.code = ${value}`;
                case 'ref':
                    return {'t.ref': {like: `%${value}%`}};
                case 'id':
                    return `t.id = ${value}`;
                case 'agencyModeFk':
                    return `am.id = ${value}`;
                case 'warehouseOutFk':
                    return `wo.id = ${value}`;
                case 'warehouseInFk':
                    return `w.id = ${value}`;
                case 'cargoSupplierFk':
                    return `s.id = ${value}`;
                }
            });

            let query = this.getSqlFromDef('travels');
            query = db.merge(query, where);
            query = db.merge(query, 'GROUP BY t.id');
            query = db.merge(query, `
                ORDER BY 
                    shipped ASC, 
                    landed ASC, 
                    travelFk, 
                    loadPriority, 
                    agencyModeFk, 
                    evaNotes
            `);

            return this.rawSql(query);
        },

        fetchEntries(travelIds) {
            return this.rawSqlFromDef('entries', [travelIds]);
        }
    },
    components: {
        'report-body': reportBody.build(),
        'report-footer': reportFooter.build()
    },
    props: [
        'landedTo',
        'shippedFrom',
        'continent',
        'reference',
        'id',
        'agencyModeFk',
        'warehouseOutFk',
        'warehouseInFk',
        'totalEntries',
        'cargoSupplierFk'
    ]
};