import moment from 'moment';
import fetch from 'node-fetch';
import dotenv from 'dotenv';
import { models } from './models/index.js';
import { v4 as uuidv4 } from 'uuid';
dotenv.config();
/**
 *  The Endpoint where the Access Token is requested
 */
const _accessTokenEndpoint = 'https://idm.staging.floriday.io/oauth2/ausmw6b47z1BnlHkw0h7/v1/token';

/**
 *  Gets the Access Token from the client config table
 * 
 * @param {sequelize.models} models 
 * @returns {Date} tokenExpirationDate formated as YYYY-MM-DD HH:mm:ss
 */
async function getClientToken() {
    const clientConfigData = await models.clientConfig.findAll();

    const now = moment().format('YYYY-MM-DD HH:mm:ss');
    const tokenExpirationDate = clientConfigData[0].tokenExpiration;

    if (clientConfigData[0].tokenExpiration == null || moment(now).isAfter(tokenExpirationDate)) {
        let clientId = clientConfigData[0].clientId;
        let clientSecret = clientConfigData[0].clientSecret;

        const tokenRequest = await fetch(_accessTokenEndpoint, {
            method: 'POST',
            headers: {
                'Content-Type': 'application/x-www-form-urlencoded',
            },
            body: `grant_type=client_credentials&client_id=${clientId}&client_secret=${clientSecret}&scope=role:app catalog:read supply:read organization:read network:read`,
        });

        const tokenResponse = await tokenRequest.json();

        if (tokenRequest.status === 200) {
            console.log('Token request successful');
        } else {
            throw new Error(
                `Token request failed with status ${tokenRequest.status}`
            );
        }

        const accessToken = tokenResponse.access_token;
        let now = moment().format('YYYY-MM-DD HH:mm:ss');

        let tokenExpirationDate = moment(now)
            .add(tokenResponse.expires_in, 's')
            .format('YYYY-MM-DD HH:mm:ss');

        await updateClientConfig(
            clientId,
            clientSecret,
            accessToken,
            tokenExpirationDate
        );

        return tokenExpirationDate;
    } else {
        console.log('Using the current token...');
        return tokenExpirationDate;
    }
}

/**
 *  Updates the Access Token in the client config table
 * 
 * @param {sequelize.models} models 
 * @param {String} clientId 
 * @param {String} clientSecret 
 * @param {String} accessToken 
 * @param {String} tokenExpirationDate 
 */
async function updateClientConfig(clientId, clientSecret, accessToken, tokenExpirationDate) {
    try {
        console.log('Updating the client config with the new token...');
        await models.clientConfig.update(
            {
                clientId: clientId,
                clientSecret: clientSecret,
                currentToken: accessToken,
                tokenExpiration: tokenExpirationDate,
            },
            {
                where: {
                    id: 1,
                },
            }
        );
        console.log('Client config updated, new Token set');
        console.log('New token expiration date: ', tokenExpirationDate);
    } catch (error) {
        console.log('There was a error while updating the client config');
        console.log(error);
    }
}

/**
 * returns the current Access Token
 * 
 * @returns 
 */
async function getJWT() {
    const clientConfigData = await models.clientConfig.findAll();
    return clientConfigData[0].currentToken;
}

/**
 * pauses the execution of the script for the given amount of milliseconds
 * 
 * @param {integer} ms 
 * @returns A promise that resolves after ms milliseconds.
 */
async function sleep(ms) {
    return new Promise((resolve) => {
        setTimeout(resolve, ms);
    });
}

/**
 * 
 * returns every tradeitem from the organization
 * 
 * @param {*} organizationGln 
 */
async function getTradeitems(organizationGln) {

    const headers = {
        'Content-Type': 'application/json',
        'Authorization': 'Bearer ' + await getJWT(),
        'X-Api-Key': process.env.API_KEY,
    };

    const BASE_CUSTOMER_URL = 'https://api.staging.floriday.io/customers-api/2022v2/';

    // Get the organization id from the organizationGln

    const organizationsUrl = `${BASE_CUSTOMER_URL}organizations/gln/${organizationGln}`;
    const organizationsRequest = await fetch(organizationsUrl, {
        method: 'GET',
        headers: headers,
    });

    const organizationsResponse = await organizationsRequest.json();

    const organizationId = organizationsResponse.organizationId;

    // Get the tradeitems from the organization

    const tradeitemsUrl = `${BASE_CUSTOMER_URL}trade-items?supplierOrganizationId=${organizationId}`;
    const tradeitemsRequest = await fetch(tradeitemsUrl, {
        method: 'GET',
        headers: headers,
    });

    const tradeitemsResponse = await tradeitemsRequest.json();

    // if there is at least one tradeitem, save it in the database

    //console.log(tradeitemsResponse[0]);

    try {

        if (tradeitemsResponse.length > 0 && tradeitemsResponse != null) {

            console.log(`Tradeitems for the organization ${organizationGln} : `, tradeitemsResponse.length);

            await tradeitemsResponse.forEach(async item => {
                try {

                    item.tradeItemId = 'Vn-' + item.tradeItemId;

                    await models.tradeItem.upsert({
                        tradeItemId: item.tradeItemId,
                        supplierOrganizationId: organizationGln,
                        code: item.code,
                        gtin: item.gtin,
                        vbnProductCode: item.vbnProductCode,
                        name: item.name,
                        isDeleted: item.isDeleted,
                        sequenceNumber: item.sequenceNumber,
                        tradeItemVersion: item.tradeItemVersion,
                        isCustomerSpecific: item.isCustomerSpecific,
                        isHiddenInCatalog: item.isHiddenInCatalog,
                    });

                    try {
                        await item.characteristics.forEach((characteristic) => {
                            models.characteristics.upsert({
                                tradeItemFk: item.tradeItemId,
                                vbnCode: characteristic.vbnCode,
                                vbnValueCode: characteristic.vbnValueCode,
                            });
                        });
                    } catch (error) {
                        console.log('There was a error while saving the characteristics for the tradeitem: ', item.tradeItemId);
                    }

                    try {
                        await item.seasonalPeriods.forEach((seasonalPeriod) => {
                            models.seasonalPeriod.upsert({
                                tradeItemFk: item.tradeItemId,
                                startWeek: seasonalPeriod.startWeek,
                                endWeek: seasonalPeriod.endWeek,
                            });

                        });
                    } catch (error) {
                        console.log('There was a error while saving the seasonalPeriods for the tradeitem: ', item.tradeItemId);
                    }

                    try {
                        await item.photos.forEach((photo) => {

                            photo.id = 'Vn-' + photo.id;

                            models.photos.upsert({
                                tradeItemFk: item.tradeItemId,
                                photoId: photo.id,
                                url: photo.url,
                                seasonalPeriodFk: photo.seasonalPeriod,
                                type: photo.type,
                                primary: photo.primary,
                            });
                        });
                    } catch (error) {
                        console.log('There was a error while saving the photos for the tradeitem: ', item.tradeItemId);
                    }

                    try {
                        await item.packingConfigurations.forEach(async (packagingConfiguration) => {

                            let uuid = uuidv4(); 
                            uuid = 'Vn-' + uuid;

                            await models.packingConfigurations.upsert({
                                tradeItemFk: item.tradeItemId,
                                packingConfigurationId: uuid,
                                piecesPerPackage: packagingConfiguration.piecesPerPackage,
                                bunchesPerPackage: packagingConfiguration.bunchesPerPackage,
                                photoUrl: packagingConfiguration.photoUrl,
                                packagesPerLayer: packagingConfiguration.packagesPerLayer,
                                layersPerLoadCarrier: packagingConfiguration.layersPerLoadCarrier,
                                transportHeightInCm: packagingConfiguration.transportHeightInCm,
                                loadCarrierType: packagingConfiguration.loadCarrierType,
                                isPrimary: packagingConfiguration.isPrimary,
                            });

                            await models.package.upsert({
                                packingConfigurationsFk: uuid,
                                vbnPackageCode: packagingConfiguration.package.vbnPackageCode,
                                vbnPackageValueCode: packagingConfiguration.package.vbnPackageValueCode,
                            });

                            await models.additionalPricePerPiece.upsert({
                                packingConfigurationsFk: uuid,
                                currency: packagingConfiguration.additionalPricePerPiece.currency,
                                value: packagingConfiguration.additionalPricePerPiece.value,
                            });

                        });
                    } catch (error) {
                        console.log('There was a error while saving the packingConfigurations for the tradeitem: ', item.tradeItemId);
                    }


                    try {
                        await item.botanicalNames.forEach((botanicalName) => {
                            models.botanicalNames.upsert({
                                tradeItemFk: item.tradeItemId,
                                name: botanicalName,
                            });
                        });
                    } catch (error) {
                        console.log('There was a error while saving the botanicalNames for the tradeitem: ', item.tradeItemId);
                    }

                    try {
                        await item.countryOfOriginIsoCodes.forEach((countryOfOriginIsoCode) => {
                            models.countryOfOriginIsoCodes.upsert({
                                tradeItemFk: item.tradeItemId,
                                isoCode: countryOfOriginIsoCode,
                            });
                        });
                    } catch (error) {
                        console.log('There was a error while saving the countryOfOriginIsoCodes for the tradeitem: ', item.tradeItemId);
                    }


                } catch (error) {
                    console.log('There was an error while saving the data to the database');
                    console.log(error);
                }
            });
        } else { 
            console.log('There are no tradeitems for the organization: ', organizationGln);
        }

    } catch (error) {
        console.log('There was an error while saving the data to the database');
        throw new Error(error);
    }
}

export { getClientToken, updateClientConfig, getJWT, getTradeitems ,sleep };