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Ghost/ghost/email-service/lib/email-segmenter.js
Rishabh Garg f9161876b3
Updated unit test coverage for email service ()
refs https://github.com/TryGhost/Team/issues/2339

- adds unit test for email renderer, segmenter and sending service
2022-12-02 00:33:28 +05:30

75 lines
2.1 KiB
JavaScript

const tpl = require('@tryghost/tpl');
const errors = require('@tryghost/errors');
const messages = {
noneFilterError: 'Cannot send email to "none" recipient filter',
newsletterVisibilityError: 'Unexpected visibility value "{value}". Use one of the valid: "members", "paid".'
};
/**
* @typedef {object} MembersRepository
* @prop {(options) => Promise<any>} list
*/
class EmailSegmenter {
#membersRepository;
/**
*
* @param {object} dependencies
* @param {MembersRepository} dependencies.membersRepository
*/
constructor({
membersRepository
}) {
this.#membersRepository = membersRepository;
}
getMemberFilterForSegment(newsletter, emailRecipientFilter, segment) {
const filter = [`newsletters.id:${newsletter.id}`];
switch (emailRecipientFilter) {
case 'all':
break;
case 'none':
throw new errors.InternalServerError({
message: tpl(messages.noneFilterError)
});
default:
filter.push(`(${emailRecipientFilter})`);
break;
}
const visibility = newsletter.get('visibility');
switch (visibility) {
case 'members':
// No need to add a member status filter as the email is available to all members
break;
case 'paid':
filter.push(`status:-free`);
break;
default:
throw new errors.InternalServerError({
message: tpl(messages.newsletterVisibilityError, {
value: visibility
})
});
}
if (segment) {
filter.push(`(${segment})`);
}
return filter.join('+');
}
async getMembersCount(newsletter, emailRecipientFilter, segment) {
const filter = this.getMemberFilterForSegment(newsletter, emailRecipientFilter, segment);
const {meta: {pagination: {total: membersCount}}} = await this.#membersRepository.list({filter});
return membersCount;
}
}
module.exports = EmailSegmenter;