112 lines
2.7 KiB
JavaScript
112 lines
2.7 KiB
JavaScript
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'use strict';
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var _ = require('lodash');
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var $ = require('preconditions').singleton();
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var async = require('async');
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var log = require('npmlog');
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log.debug = log.verbose;
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var fs = require('fs');
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var Model = require('./model');
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var EMAIL_TYPES = {
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'NewTxProposal': {
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filename: 'new_tx_proposal',
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notifyCreator: false,
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notifyDoer: false,
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},
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'NewOutgoingTx': {
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filename: 'new_outgoing_tx',
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notifyCreator: true,
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notifyDoer: true,
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},
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'NewIncomingTx': {
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filename: 'new_incoming_tx',
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notifyCreator: true,
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notifyDoer: true,
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},
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'TxProposalFinallyRejected': {
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filename: 'txp_finally_rejected',
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notifyCreator: true,
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notifyDoer: false,
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},
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};
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function EmailService(opts) {
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this.storage = opts.storage;
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this.lock = opts.lock;
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};
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EmailService.prototype._readTemplate = function(filename, cb) {
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fs.readFile(__dirname + '/templates/' + filename + '.plain', 'utf8', function(err, template) {
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var lines = template.split('\n');
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return cb(null, {
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subject: _.template(lines[0]),
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body: _.template(_.rest(lines).join('\n')),
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});
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});
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};
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EmailService.prototype._applyTemplate = function(template, data, cb) {
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var result = _.mapValues(template, function(t) {
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// TODO: If this throws exception, log and abort email generation
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return t(data);
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});
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return cb(null, result);
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};
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EmailService.prototype._generateFromNotification = function(notification, cb) {
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var self = this;
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var emailType = EMAIL_TYPES[notification.type];
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if (!emailType) return cb();
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self.storage.fetchPreferences(notification.walletId, null, function(err, preferences) {
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if (_.isEmpty(preferences)) return cb();
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var addressesByCopayer = _.reduce(preferences, function(memo, p) {
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if (p.email) {
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memo[p.copayerId] = p.email;
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}
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return memo;
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}, {});
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if (_.isEmpty(addressesByCopayer)) return cb();
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self._readTemplate(emailType.filename, function(err, template) {
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if (err) return cb(err);
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self._applyTemplate(template, notification.data, function(err, content) {
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if (err) return cb(err);
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_.each(addressesByCopayer, function(emailAddress, copayerId) {
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var email = Model.Email.create({
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walletId: notification.walletId,
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copayerId: copayerId,
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to: emailAddress,
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subject: content.subject,
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body: content.body,
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});
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self.storage.storeEmail(email, function(err) {
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return cb(err);
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});
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});
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});
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});
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});
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return cb();
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};
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EmailService.prototype._send = function(cb) {
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var self = this;
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this.lock.runLocked('emails', cb, function() {
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//self._fetchUnsentEmails();
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});
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};
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module.exports = EmailService;
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