import ngModule from '../module';
import Section from 'salix/components/section';
import UserError from 'core/lib/user-error';
import './style.scss';

class Controller extends Section {
    $onInit() {
        const date = Date.vnNew();
        Object.assign(this, {
            maxShipped: new Date(date.getFullYear(), date.getMonth(), 0),
            clientsToInvoice: 'all',
            companyFk: this.vnConfig.companyFk,
            parallelism: 1
        });

        const params = {companyFk: this.companyFk};
        this.$http.get('InvoiceOuts/getInvoiceDate', {params})
            .then(res => {
                this.minInvoicingDate = res.data.issued ? new Date(res.data.issued) : null;
                this.invoiceDate = this.minInvoicingDate;
            });

        const filter = {fields: ['parallelism']};
        this.$http.get('InvoiceOutConfigs/findOne', {filter})
            .then(res => {
                if (res.data.parallelism)
                    this.parallelism = res.data.parallelism;
            })
            .catch(res => {
                if (res.status == 404) return;
                throw res;
            });
    }

    makeInvoice() {
        this.invoicing = true;
        this.status = 'packageInvoicing';
        this.errors = [];
        this.addresses = null;

        try {
            if (this.clientsToInvoice == 'one' && !this.clientId)
                throw new UserError('Choose a valid client');
            if (!this.invoiceDate || !this.maxShipped)
                throw new UserError('Invoice date and the max date should be filled');
            if (this.invoiceDate < this.maxShipped)
                throw new UserError('Invoice date can\'t be less than max date');
            if (this.minInvoicingDate && this.invoiceDate.getTime() < this.minInvoicingDate.getTime())
                throw new UserError('Exists an invoice with a future date');
            if (!this.companyFk)
                throw new UserError('Choose a valid company');
            if (!this.printerFk)
                throw new UserError('Choose a valid printer');

            if (this.clientsToInvoice == 'all')
                this.clientId = undefined;

            const params = {
                invoiceDate: this.invoiceDate,
                maxShipped: this.maxShipped,
                clientId: this.clientId,
                companyFk: this.companyFk
            };
            this.$http.post(`InvoiceOuts/clientsToInvoice`, params)
                .then(res => {
                    this.addresses = res.data;
                    if (!this.addresses.length)
                        throw new UserError(`There aren't tickets to invoice`);

                    this.nRequests = 0;
                    this.nPdfs = 0;
                    this.totalPdfs = 0;
                    this.addressIndex = 0;
                    this.invoiceClient();
                })
                .catch(err => this.handleError(err));
        } catch (err) {
            this.handleError(err);
        }
    }

    handleError(err) {
        this.invoicing = false;
        this.status = null;
        throw err;
    }

    invoiceClient() {
        if (this.nRequests == this.parallelism || this.isInvoicing) return;

        if (this.addressIndex >= this.addresses.length || this.status == 'stopping') {
            if (this.nRequests) return;
            this.invoicing = false;
            this.status = 'done';
            return;
        }

        this.status = 'invoicing';
        const address = this.addresses[this.addressIndex];
        this.currentAddress = address;
        this.isInvoicing = true;

        const params = {
            clientId: address.clientId,
            addressId: address.id,
            invoiceDate: this.invoiceDate,
            maxShipped: this.maxShipped,
            companyFk: this.companyFk
        };

        this.$http.post(`InvoiceOuts/invoiceClient`, params)
            .then(res => {
                this.isInvoicing = false;
                if (res.data)
                    this.makePdfAndNotify(res.data, address);
                this.invoiceNext();
            })
            .catch(res => {
                this.isInvoicing = false;
                if (res.status >= 400 && res.status < 500) {
                    this.invoiceError(address, res);
                    this.invoiceNext();
                } else {
                    this.invoicing = false;
                    this.status = 'done';
                    throw new UserError(`Critical invoicing error, proccess stopped`);
                }
            });
    }

    invoiceNext() {
        this.addressIndex++;
        this.invoiceClient();
    }

    makePdfAndNotify(invoiceId, address) {
        this.nRequests++;
        this.totalPdfs++;
        const params = {printerFk: this.printerFk};
        this.$http.post(`InvoiceOuts/${invoiceId}/makePdfAndNotify`, params)
            .catch(res => {
                this.invoiceError(address, res, true);
            })
            .finally(() => {
                this.nPdfs++;
                this.nRequests--;
                this.invoiceClient();
            });
    }

    invoiceError(address, res, isWarning) {
        const message = res.data?.error?.message || res.message;
        this.errors.unshift({address, message, isWarning});
    }

    get nAddresses() {
        if (!this.addresses) return 0;
        return this.addresses.length;
    }

    get addressNumber() {
        return Math.min(this.addressIndex + 1, this.nAddresses);
    }

    get percentage() {
        const len = this.nAddresses;
        return Math.min(this.addressIndex, len) / len;
    }
}

ngModule.vnComponent('vnInvoiceOutGlobalInvoicing', {
    template: require('./index.html'),
    controller: Controller
});