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definma-api/src/routes/sample.ts
2020-05-28 14:41:35 +02:00

314 lines
13 KiB
TypeScript

import express from 'express';
import _ from 'lodash';
import SampleValidate from './validate/sample';
import NoteFieldValidate from './validate/note_field';
import res400 from './validate/res400';
import SampleModel from '../models/sample'
import MeasurementModel from '../models/measurement';
import MaterialModel from '../models/material';
import NoteModel from '../models/note';
import NoteFieldModel from '../models/note_field';
import IdValidate from './validate/id';
import mongoose from 'mongoose';
import ConditionTemplateModel from '../models/condition_template';
import ParametersValidate from './validate/parameters';
import globals from '../globals';
const router = express.Router();
router.get('/samples', (req, res, next) => {
if (!req.auth(res, ['read', 'write', 'maintain', 'dev', 'admin'], 'all')) return;
SampleModel.find({status: globals.status.validated}).lean().exec((err, data) => {
if (err) return next(err);
res.json(_.compact(data.map(e => SampleValidate.output(e)))); // validate all and filter null values from validation errors
})
});
router.get('/samples/:group(new|deleted)', (req, res, next) => {
if (!req.auth(res, ['maintain', 'admin'], 'basic')) return;
SampleModel.find({status: globals.status[req.params.group]}).lean().exec((err, data) => {
if (err) return next(err);
res.json(_.compact(data.map(e => SampleValidate.output(e)))); // validate all and filter null values from validation errors
});
});
router.get('/sample/' + IdValidate.parameter(), (req, res, next) => {
if (!req.auth(res, ['read', 'write', 'maintain', 'dev', 'admin'], 'all')) return;
SampleModel.findById(req.params.id).populate('material_id').populate('user_id', 'name').populate('note_id').lean().exec((err, sampleData: any) => {
if (err) return next(err);
if (sampleData) {
if (sampleData.status === globals.status.deleted && !req.auth(res, ['maintain', 'admin'], 'all')) return; // deleted samples only available for maintain/admin
sampleData.material = sampleData.material_id; // map data to right keys
sampleData.user = sampleData.user_id.name;
sampleData.notes = sampleData.note_id ? sampleData.note_id : {};
MeasurementModel.find({sample_id: mongoose.Types.ObjectId(req.params.id)}).lean().exec((err, data) => {
sampleData.measurements = data;
res.json(SampleValidate.output(sampleData, 'details'));
});
}
else {
res.status(404).json({status: 'Not found'});
}
});
});
router.put('/sample/' + IdValidate.parameter(), (req, res, next) => {
if (!req.auth(res, ['write', 'maintain', 'dev', 'admin'], 'basic')) return;
const {error, value: sample} = SampleValidate.input(req.body, 'change');
if (error) return res400(error, res);
SampleModel.findById(req.params.id).lean().exec(async (err, sampleData: any) => { // check if id exists
if (err) return next(err);
if (!sampleData) {
return res.status(404).json({status: 'Not found'});
}
if (sampleData.status === globals.status.deleted) {
return res.status(403).json({status: 'Forbidden'});
}
// only maintain and admin are allowed to edit other user's data
if (sampleData.user_id.toString() !== req.authDetails.id && !req.auth(res, ['maintain', 'admin'], 'basic')) return;
if (sample.hasOwnProperty('material_id')) {
if (!await materialCheck(sample, res, next)) return;
}
else if (sample.hasOwnProperty('color')) {
if (!await materialCheck(sample, res, next, sampleData.material_id)) return;
}
if (sample.hasOwnProperty('condition') && !(_.isEmpty(sample.condition) && _.isEmpty(sampleData.condition))) { // do not execute check if condition is and was empty
if (!await conditionCheck(sample.condition, 'change', res, next)) return;
}
if (sample.hasOwnProperty('notes')) {
let newNotes = true;
if (sampleData.note_id !== null) { // old notes data exists
const data = await NoteModel.findById(sampleData.note_id).lean().exec().catch(err => {next(err);}) as any;
if (data instanceof Error) return;
newNotes = !_.isEqual(_.pick(IdValidate.stringify(data), _.keys(sample.notes)), sample.notes); // check if notes were changed
if (newNotes) {
if (data.hasOwnProperty('custom_fields')) { // update note_fields
customFieldsChange(Object.keys(data.custom_fields), -1);
}
await NoteModel.findByIdAndDelete(sampleData.note_id).lean().exec(err => { // delete old notes
if (err) return console.error(err);
});
}
}
if (_.keys(sample.notes).length > 0 && newNotes) { // save new notes
if (!await sampleRefCheck(sample, res, next)) return;
if (sample.notes.hasOwnProperty('custom_fields') && Object.keys(sample.notes.custom_fields).length > 0) { // new custom_fields
customFieldsChange(Object.keys(sample.notes.custom_fields), 1);
}
let data = await new NoteModel(sample.notes).save().catch(err => { return next(err)}); // save new notes
delete sample.notes;
sample.note_id = data._id;
}
}
// check for changes
if (!_.isEqual(_.pick(IdValidate.stringify(sampleData), _.keys(sample)), _.omit(sample, ['notes']))) {
sample.status = globals.status.new;
}
await SampleModel.findByIdAndUpdate(req.params.id, sample, {new: true}).lean().exec((err, data: any) => {
if (err) return next(err);
res.json(SampleValidate.output(data));
});
});
});
router.delete('/sample/' + IdValidate.parameter(), (req, res, next) => {
if (!req.auth(res, ['write', 'maintain', 'dev', 'admin'], 'basic')) return;
SampleModel.findById(req.params.id).lean().exec(async (err, sampleData: any) => { // check if id exists
if (err) return next(err);
if (!sampleData) {
return res.status(404).json({status: 'Not found'});
}
// only maintain and admin are allowed to edit other user's data
if (sampleData.user_id.toString() !== req.authDetails.id && !req.auth(res, ['maintain', 'admin'], 'basic')) return;
await SampleModel.findByIdAndUpdate(req.params.id, {status:globals.status.deleted}).lean().exec(err => { // set sample status
if (err) return next(err);
// set status of associated measurements also to deleted
MeasurementModel.update({sample_id: mongoose.Types.ObjectId(req.params.id)}, {status: -1}).lean().exec(err => {
if (err) return next(err);
if (sampleData.note_id !== null) { // handle notes
NoteModel.findById(sampleData.note_id).lean().exec((err, data: any) => { // find notes to update note_fields
if (err) return next(err);
if (data.hasOwnProperty('custom_fields')) { // update note_fields
customFieldsChange(Object.keys(data.custom_fields), -1);
}
res.json({status: 'OK'});
});
}
else {
res.json({status: 'OK'});
}
});
});
});
});
router.put('/sample/restore/' + IdValidate.parameter(), (req, res, next) => {
if (!req.auth(res, ['maintain', 'admin'], 'basic')) return;
SampleModel.findByIdAndUpdate(req.params.id, {status: globals.status.new}).lean().exec((err, data) => {
if (err) return next(err);
if (!data) {
return res.status(404).json({status: 'Not found'});
}
res.json({status: 'OK'});
});
});
router.post('/sample/new', async (req, res, next) => {
if (!req.auth(res, ['write', 'maintain', 'dev', 'admin'], 'basic')) return;
if (!req.body.hasOwnProperty('condition')) { // add empty condition if not specified
req.body.condition = {};
}
const {error, value: sample} = SampleValidate.input(req.body, 'new');
if (error) return res400(error, res);
if (!await materialCheck(sample, res, next)) return;
if (!await sampleRefCheck(sample, res, next)) return;
if (sample.notes.hasOwnProperty('custom_fields') && Object.keys(sample.notes.custom_fields).length > 0) { // new custom_fields
customFieldsChange(Object.keys(sample.notes.custom_fields), 1);
}
if (!_.isEmpty(sample.condition)) { // do not execute check if condition is empty
if (!await conditionCheck(sample.condition, 'change', res, next)) return;
}
sample.status = globals.status.new; // set status to new
sample.number = await numberGenerate(sample, req, res, next);
if (!sample.number) return;
await new NoteModel(sample.notes).save((err, data) => { // save notes
if (err) return next(err);
delete sample.notes;
sample.note_id = data._id;
sample.user_id = req.authDetails.id;
new SampleModel(sample).save((err, data) => {
if (err) return next(err);
res.json(SampleValidate.output(data.toObject()));
});
});
});
router.get('/sample/notes/fields', (req, res, next) => {
if (!req.auth(res, ['read', 'write', 'maintain', 'dev', 'admin'], 'all')) return;
NoteFieldModel.find({}).lean().exec((err, data) => {
if (err) return next(err);
res.json(_.compact(data.map(e => NoteFieldValidate.output(e)))); // validate all and filter null values from validation errors
})
});
module.exports = router;
async function numberGenerate (sample, req, res, next) { // generate number in format Location32, returns false on error
const sampleData = await SampleModel
.findOne({number: new RegExp('^' + req.authDetails.location + '[0-9]+$', 'm')})
.sort({number: -1})
.lean()
.exec()
.catch(err => next(err));
if (sampleData instanceof Error) return false;
return req.authDetails.location + (sampleData ? Number(sampleData.number.replace(/[^0-9]+/g, '')) + 1 : 1);
}
async function materialCheck (sample, res, next, id = sample.material_id) { // validate material_id and color, returns false if invalid
const materialData = await MaterialModel.findById(id).lean().exec().catch(err => next(err)) as any;
if (materialData instanceof Error) return false;
if (!materialData) { // could not find material_id
res.status(400).json({status: 'Material not available'});
return false;
}
if (sample.hasOwnProperty('color') && !materialData.numbers.find(e => e.color === sample.color)) { // color for material not specified
res.status(400).json({status: 'Color not available for material'});
return false;
}
return true;
}
async function conditionCheck (condition, param, res, next) { // validate treatment template, returns false if invalid, otherwise template data
if (!condition.condition_template || !IdValidate.valid(condition.condition_template)) { // template id not found
res.status(400).json({status: 'Condition template not available'});
return false;
}
const conditionData = await ConditionTemplateModel.findById(condition.condition_template).lean().exec().catch(err => next(err)) as any;
if (conditionData instanceof Error) return false;
if (!conditionData) { // template not found
res.status(400).json({status: 'Condition template not available'});
return false;
}
// validate parameters
const {error, value: ignore} = ParametersValidate.input(_.omit(condition, 'condition_template'), conditionData.parameters, param);
if (error) {res400(error, res); return false;}
return conditionData;
}
function sampleRefCheck (sample, res, next) { // validate sample_references, resolves false for invalid reference
return new Promise(resolve => {
if (sample.notes.sample_references.length > 0) { // there are sample_references
let referencesCount = sample.notes.sample_references.length; // count to keep track of running async operations
sample.notes.sample_references.forEach(reference => {
SampleModel.findById(reference.sample_id).lean().exec((err, data) => {
if (err) {next(err); resolve(false)}
if (!data) {
res.status(400).json({status: 'Sample reference not available'});
return resolve(false);
}
referencesCount --;
if (referencesCount <= 0) { // all async requests done
resolve(true);
}
});
});
}
else {
resolve(true);
}
});
}
function customFieldsChange (fields, amount) { // update custom_fields and respective quantities
fields.forEach(field => {
NoteFieldModel.findOneAndUpdate({name: field}, {$inc: {qty: amount}}, {new: true}).lean().exec((err, data: any) => { // check if field exists
if (err) return console.error(err);
if (!data) { // new field
new NoteFieldModel({name: field, qty: 1}).save(err => {
if (err) return console.error(err);
})
}
else if (data.qty <= 0) { // delete document if field is not used anymore
NoteFieldModel.findOneAndDelete({name: field}).lean().exec(err => {
if (err) return console.error(err);
});
}
});
});
}