dbmedialab/reader-critics

//
// LESERKRITIKK v2 (aka Reader Critics)
// Copyright (C) 2017 DB Medialab/Aller Media AS, Oslo, Norway
// https://github.com/dbmedialab/reader-critics/
//
// This program is free software: you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free Software
// Foundation, either version 3 of the License, or (at your option) any later
// version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
// FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along with
// this program. If not, see <http://www.gnu.org/licenses/>.
//

import MailTemplate from 'app/template/MailTemplate';

import { Article } from 'base/Article';
import { Website } from 'base/Website';
import { formatFeedbacks } from 'app/mail/layout/FeedbackFormat';
import { translate as __ } from 'app/services/localization';

// import { notifyBrowser } from 'app/util/notifyBrowser';

// Get all articles together into one digest e-mail

export function layoutDigest(
    website : Website,
    articles : Article[],
    template : MailTemplate,
    earliestCreated : Date,
    latestCreated : Date
) : Promise <string>
{
    const { locale } = website;

    const html : string = template.setParams({
        // Filter all needed data
        articles: articles.map((article : Article) => ({
            title: article.title,
            url: article.url.toString(),
            byline: formatAuthors(article),
            feedbackCount: formatFeedbackCount(article, locale),
            feedbacks: formatFeedbacks(article, article.feedbacks, locale),
        })),
        // Localization
        text: {
            itsaDigest: __('mail.digest.head', locale),
            author: __('mail.digest.author'),
            // Date range
            dateRange: __('mail.digest.date-range', {
                locale,
                values: {
                    earliestCreated: `<b>${formatDate(earliestCreated, locale)}</b>`,
                    latestCreated: `<b>${formatDate(latestCreated, locale)}</b>`,
                },
            }),
            mfg: __('mail.regards'),
        },
    })
    .render();

    // notifyBrowser(html);  // -- this is only for convenient local testing
    return Promise.resolve(html);
}

const formatAuthors = (article : Article) => article.authors.map(author => (
    author.email
        ? `<a href="mailto:${author.email}">${author.name}</a>`
        : author.name
)).join(', ');

const formatFeedbackCount = (article : Article, locale : string) => (
    __('mail.digest.feedback-count', {
        locale,
        values: {
            count: article.feedbacks.length,
        },
    })
);

const formatDate = (d : Date, locale : string) => d.toLocaleString(locale);