Merge branch 'multiple_bases' into 'master'

added multiple bases, as well as the ability to choose their own base

See merge request !1

README.md

@@ -14,8 +14,9 @@ The data in mongodb has the following fields:
 
 #### API Endpoints
 * ```POST /api/:product/:year```
-    * Required url params: ```product``` and ```year```. Product is the crop (corn and soybean only supported)
-    * Body requires latitude and longitude
+    * Required url params: ```product``` and ```year```. Product is the crop (supports corn, soybean, wheat, tomatoes, potatoes, peas, sunflowers, sugar beets, etc.)
+    * ```product``` must be singular. As in, send "soybean" not "soybeans"
+    * Body requires ```latitude``` and ```longitude```, ```t_base``` is an optional parameter if a farmer decides to set their own base temperater in fahrenheit
     * returns the gdd calculated for that year up to the most recent date of the year. If the year is before the current, the data will cover 01/01 to 12/31. If it is the current year, 01/01 - current date. But the current year is not included
 
 ### How to run

gddController.js

@@ -28,12 +28,42 @@ exports.year_gdd = function (req, res) {
     var t_max = 86
     var t_min = 50 
 
-    if (product == "soybean" || product == "corn") {
-        t_base = 50
-        t_max = 86
-        t_min = 50 
+    if (req.body.hasOwnProperty("t_base")) {
+        t_base = parseFloat(req.body.t_base);
+        if (t_base < t_min) {
+            t_min = t_base;
+        }
     } else {
-        res.status(404).send(product + " is not available for GDD calculations")
+        switch (product) {
+            case "soybean":
+            case "corn":
+            case "sunflower":
+            case "tomato":
+            case "sugar_beat":
+                t_base = 50;
+                break;
+            case "potato":
+                t_base = 44.6;
+                t_min = 44.6; // NEED TO ASK ABOUT MIN AND MAX TEMPS IN DAY. SHOULD T_MIN BE SET EQUAL TO T_BASE IF IT IS LESS THAN T_BASE?
+                break;
+            case "wheat":
+                t_base = 41.9;
+                t_min = 41.9;
+                break;
+            case "peas":
+                t_base = 41;
+                t_min = 41;
+                break;
+            case "brussels_sprout":
+            case "parsley":
+            case "cabbage":
+                t_base = 32;
+                t_min = 32;
+                break;
+            default:
+                res.status(404).send(product + " is not available for GDD calculations");
+                break;
+        }
     }
 
     Gdd.findOne(query, projection).then(function(data) {
@@ -44,7 +74,6 @@ exports.year_gdd = function (req, res) {
         
         var min_temp = 0
         var max_temp = 0
-        var gdd = 0
 
         for (var i = 0; i < min_temps.length; i++) {
             min_temp = min_temps[i] >= t_min ? min_temps[i] : t_min;