const config = require(`${appPath}/core/config`);
const Component = require(`${appPath}/core/component`);
const reportHeader = new Component('report-header');
const reportFooter = new Component('report-footer');
const md5 = require('md5');
const fs = require('fs-extra');

module.exports = {
    name: 'delivery-note',
    async serverPrefetch() {
        this.client = await this.fetchClient(this.ticketId);
        this.ticket = await this.fetchTicket(this.ticketId);
        this.sales = await this.fetchSales(this.ticketId);
        this.address = await this.fetchAddress(this.ticketId);
        this.services = await this.fetchServices(this.ticketId);
        this.taxes = await this.fetchTaxes(this.ticketId);
        this.packagings = await this.fetchPackagings(this.ticketId);
        this.signature = await this.fetchSignature(this.ticketId);

        if (!this.ticket)
            throw new Error('Something went wrong');
    },
    data() {
        return {totalBalance: 0.00};
    },
    computed: {
        dmsPath() {
            if (!this.signature) return;

            const hash = md5(this.signature.id.toString()).substring(0, 3);
            const file = `${config.storage.root}/${hash}/${this.signature.id}.png`;
            const src = fs.readFileSync(file);
            const base64 = Buffer.from(src, 'utf8').toString('base64');

            return `data:image/png;base64, ${base64}`;
        },
        serviceTotal() {
            let total = 0.00;
            this.services.forEach(service => {
                total += parseFloat(service.price) * service.quantity;
            });

            return total;
        }
    },
    methods: {
        fetchClient(ticketId) {
            return this.findOneFromDef('client', [ticketId]);
        },
        fetchTicket(ticketId) {
            return this.findOneFromDef('ticket', [ticketId]);
        },
        fetchAddress(ticketId) {
            return this.findOneFromDef(`address`, [ticketId]);
        },
        fetchSignature(ticketId) {
            return this.findOneFromDef('signature', [ticketId]);
        },
        fetchTaxes(ticketId) {
            return this.findOneFromDef(`taxes`, [ticketId]);
        },
        fetchSales(ticketId) {
            return this.rawSqlFromDef('sales', [ticketId]);
        },
        fetchPackagings(ticketId) {
            return this.rawSqlFromDef('packagings', [ticketId]);
        },
        fetchServices(ticketId) {
            return this.rawSqlFromDef('services', [ticketId]);
        },

        getSubTotal() {
            let subTotal = 0.00;
            this.sales.forEach(sale => {
                subTotal += sale.quantity * sale.price * (1 - sale.discount / 100);
            });

            return subTotal;
        },
        getTotalBase() {
            let totalBase = 0.00;
            this.taxes.forEach(tax => {
                totalBase += parseFloat(tax.Base);
            });

            return totalBase;
        },
        getTotalTax() {
            let totalTax = 0.00;
            this.taxes.forEach(tax => {
                totalTax += parseFloat(tax.tax);
            });

            return totalTax;
        },
        getTotal() {
            return this.getTotalBase() + this.getTotalTax();
        }
    },
    components: {
        'report-header': reportHeader.build(),
        'report-footer': reportFooter.build()
    },
    props: {
        ticketId: {
            type: String,
            required: true
        }
    }
};