95 lines
3.4 KiB
JavaScript
95 lines
3.4 KiB
JavaScript
const TableImporter = require('./TableImporter');
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const {faker} = require('@faker-js/faker');
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const generateEvents = require('../utils/event-generator');
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const {luck} = require('../utils/random');
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const dateToDatabaseString = require('../utils/database-date');
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class EmailsImporter extends TableImporter {
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static table = 'emails';
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static dependencies = ['posts', 'newsletters', 'members_subscribe_events'];
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constructor(knex, transaction) {
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super(EmailsImporter.table, knex, transaction);
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}
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async import(quantity) {
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const posts = await this.transaction.select('id', 'title', 'published_at').from('posts').where('type', 'post');
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this.newsletters = await this.transaction.select('id').from('newsletters').orderBy('sort_order');
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this.membersSubscribeEvents = await this.transaction.select('id', 'newsletter_id', 'created_at').from('members_subscribe_events');
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await this.importForEach(posts, quantity ? quantity / posts.length : 1);
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}
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generate() {
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const id = faker.database.mongodbObjectId();
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let newsletter;
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if (this.newsletters.length === 0) {
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return null;
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} else if (this.newsletters.length === 1) {
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newsletter = this.newsletters[0];
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} else {
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// Choose between first two newsletters
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newsletter = luck(90)
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// Regular premium
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? this.newsletters[0]
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// Occasional freebie
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: this.newsletters[1];
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}
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const timestamp = luck(60)
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? new Date(this.model.published_at)
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: generateEvents({
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shape: 'ease-out',
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trend: 'negative',
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total: 1,
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startTime: new Date(this.model.published_at),
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endTime: new Date()
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})[0];
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const recipientCount = this.membersSubscribeEvents
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.filter(entry => entry.newsletter_id === newsletter.id)
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.filter(entry => new Date(entry.created_at) < timestamp).length;
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const deliveredCount = Math.ceil(recipientCount * faker.datatype.float({
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max: 1,
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min: 0.9,
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precision: 0.001
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}));
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const openedCount = Math.ceil(deliveredCount * faker.datatype.float({
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max: 0.95,
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min: 0.6,
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precision: 0.001
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}));
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const failedCount = Math.floor((recipientCount - deliveredCount) * faker.datatype.float({
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max: 0.05,
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min: 0,
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precision: 0.001
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}));
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return {
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id,
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uuid: faker.datatype.uuid(),
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post_id: this.model.id,
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status: 'submitted',
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recipient_filter: '', // TODO: Add recipient filter?
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email_count: recipientCount,
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delivered_count: deliveredCount,
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opened_count: openedCount,
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failed_count: failedCount,
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subject: this.model.title,
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source_type: 'html',
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track_opens: true,
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track_clicks: true,
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feedback_enabled: true,
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submitted_at: dateToDatabaseString(timestamp),
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newsletter_id: newsletter.id,
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created_at: dateToDatabaseString(timestamp),
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created_by: 'unused',
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updated_at: dateToDatabaseString(timestamp),
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updated_by: 'unused'
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};
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}
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}
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module.exports = EmailsImporter;
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