Merge pull request #48 in DEFINMA/definma-api from prediction-delta to master

* commit '9b75741f22c9f06dd24cd613318666fc67288522':
  Throw an error when a prediction cannot be found
  Add simple prediction comparison
  Allow predictions to be saved
  Add prediction model

src/index.ts

@@ -110,14 +110,15 @@ if (process.env.NODE_ENV !== 'production') {
 
 
 // Require routes
-app.use('/', require('./routes/root'));
-app.use('/', require('./routes/sample'));
+app.use('/', require('./routes/help'));
 app.use('/', require('./routes/material'));
 app.use('/', require('./routes/measurement'));
-app.use('/', require('./routes/template'));
 app.use('/', require('./routes/model'));
+app.use('/', require('./routes/prediction'));
+app.use('/', require('./routes/root'));
+app.use('/', require('./routes/sample'));
+app.use('/', require('./routes/template'));
 app.use('/', require('./routes/user'));
-app.use('/', require('./routes/help'));
 
 // Static files
 app.use('/static', express.static('static'));

src/models/prediction.ts

@@ -0,0 +1,12 @@
+import mongoose from 'mongoose';
+
+
+const PredictionSchema = new mongoose.Schema({
+	name: {
+		type: String,
+		unique: true
+	},
+	value: Number
+});
+
+export default mongoose.model<any, mongoose.Model<any, any>>('prediction', PredictionSchema);

src/models/user.ts

@@ -1,6 +1,7 @@
 import mongoose from 'mongoose';
 import db from '../db';
 import ModelModel from './model';
+import PredictionModel from './prediction';
 
 const UserSchema = new mongoose.Schema({
 	name: {type: String, index: {unique: true}},
@@ -11,6 +12,7 @@ const UserSchema = new mongoose.Schema({
 	location: String,
 	devices: [String],
 	models: [{type: mongoose.Schema.Types.ObjectId, ref: ModelModel}],
+	predictions: [{type: mongoose.Schema.Types.ObjectId, ref: PredictionModel}],
 	status: String
 });
 

src/routes/prediction.ts

@@ -0,0 +1,27 @@
+import express from 'express';
+import mongoose from 'mongoose';
+
+import db from '../db';
+import PredictionModel from '../models/prediction';
+
+const router = express.Router();
+
+
+router.post('/prediction/new', (req, res, next) => {
+	console.log("New Prediction");
+	console.log(JSON.stringify(req.body));
+	new PredictionModel(req.body).save((err, data) => {
+		if(err) return next(err);
+		db.log(req, 'predictions', {_id: data._id}, data.toObject());
+	});
+});
+
+router.post('/prediction/compare', async (req, res, next) => {
+	const valA = await PredictionModel.findOne({ name: req.body.nameA });
+	const valB = await PredictionModel.findOne({ name: req.body.nameB });
+	if(!valA || !valB) next(new Error("invalid prediction name"));
+	res.json(valB.value - valA.value);
+});
+
+
+module.exports = router;