mailtrain/services/reports.js

146 lines
4.5 KiB
JavaScript

'use strict';
const reports = require('../lib/models/reports');
const reportTemplates = require('../lib/models/report-templates');
const lists = require('../lib/models/lists');
const campaigns = require('../lib/models/campaigns');
const handlebars = require('handlebars');
const handlebarsHelpers = require('../lib/handlebars-helpers');
const _ = require('../lib/translate')._;
const hbs = require('hbs');
const vm = require('vm');
const log = require('npmlog');
const fs = require('fs');
const path = require('path');
const fsTools = require('../lib/fs-tools');
handlebarsHelpers.registerHelpers(handlebars);
function resolveEntities(getter, ids, callback) {
const idsRemaining = ids.slice();
const resolved = [];
function doWork() {
if (idsRemaining.length == 0) {
return callback(null, resolved);
}
getter(idsRemaining.shift(), (err, entity) => {
if (err) {
return callback(err);
}
resolved.push(entity);
return doWork();
});
}
setImmediate(doWork);
}
const userFieldTypeToGetter = {
'campaign': (id, callback) => campaigns.get(id, false, callback),
'list': lists.get
};
function resolveUserFields(userFields, params, callback) {
const userFieldsRemaining = userFields.slice();
const resolved = {};
function doWork() {
if (userFieldsRemaining.length == 0) {
return callback(null, resolved);
}
const spec = userFieldsRemaining.shift();
const getter = userFieldTypeToGetter[spec.type];
if (getter) {
return resolveEntities(getter, params[spec.id], (err, entities) => {
if (spec.minOccurences == 1 && spec.maxOccurences == 1) {
resolved[spec.id] = entities[0];
} else {
resolved[spec.id] = entities;
}
doWork();
});
} else {
return callback(new Error(_('Unknown user field type "' + spec.type + '".')));
}
}
setImmediate(doWork);
}
function doneSuccess(id) {
// TODO: Mark in the DB as completed + update the date/time
// TODO update the report filename in the DB
process.exit(0);
}
function doneFail(id) {
// TODO: Mark in the DB as failed
process.exit(1);
}
function start(id) {
// TODO: Mark in the DB as running
}
// TODO: Retrieve report task from the DB and run it
function processReport(reportId) {
reports.get(reportId, (err, report) => {
if (err || !report) {
log.error('reports', err && err.message || err || _('Could not find report with specified ID'));
doneFail(reportId);
}
reportTemplates.get(report.reportTemplate, (err, reportTemplate) => {
if (err) {
log.error('reports', err && err.message || err || _('Could not find report template'));
doneFail(reportId);
}
resolveUserFields(reportTemplate.userFieldsObject, report.paramsObject, (err, inputs) => {
if (err) {
log.error('reports', err.message || err);
doneFail(reportId);
}
const filename = fsTools.nameToFileName(report.name);
const sandbox = {
require: require,
inputs: inputs,
callback: (err, outputs) => {
if (err) {
log.error('reports', err.message || err);
doneFail(reportId);
}
const hbsTmpl = handlebars.compile(reportTemplate.hbs);
const reportText = hbsTmpl(outputs);
fs.writeFile(path.join(__dirname, '../protected/reports', filename + '.report'), reportText, (err, reportContent) => {
if (err) {
log.error('reports', err && err.message || err || _('Could not find report with specified ID'));
doneFail(reportId);
}
doneSuccess(reportId, filename);
process
});
}
};
const script = new vm.Script(reportTemplate.js);
script.runInNewContext(sandbox, {displayErrors: true, timeout: 120000});
});
});
});
}
processReport(1);