major fix for handling timezones

index.js

@@ -18,7 +18,7 @@ function adjustForCustomAngle(baseSpaData, zenithAngle) {
     return adjustedData;
 }
 
-function getSpa(date, lat, lng, params = null, angles = []) {
+function getSpa(date, lat, lng, tz, params = null, angles = []) {
     let data = new spa.SpaData();
     data.year = date.getFullYear();
     data.month = date.getMonth() + 1; // JavaScript months are 0-indexed
@@ -28,15 +28,14 @@ function getSpa(date, lat, lng, params = null, angles = []) {
     data.second = date.getSeconds();
     data.longitude = lng;
     data.latitude = lat;
+    data.timezone = tz;
 
     // Set default values if optional parameters are not provided
-    data.elevation = params?.elevation ?? 10;
+    data.elevation = params?.elevation ?? 50;
     data.pressure = params?.pressure ?? 1013.25;
     data.temperature = params?.temperature ?? 15;
-    data.timezone = params?.timezone ?? -5;
     data.function = spa.SPA_ALL;
 
-
     let result = spa.spa_calculate(data);
     let output = {};
 
@@ -65,8 +64,8 @@ function getSpa(date, lat, lng, params = null, angles = []) {
     return output;
 }
 
-function calcSpa(date, lat, lng, params = null, angles = []) {
+function calcSpa(date, lat, lng, tz, params = null, angles = []) {
-    let rawData = getSpa(date, lat, lng, params, angles);
+    let rawData = getSpa(date, lat, lng, tz, params, angles);
     rawData.sunrise = fractalTime(rawData.sunrise);
     rawData.solarNoon = fractalTime(rawData.solarNoon);
     rawData.sunset = fractalTime(rawData.sunset);

package.json

@@ -1,6 +1,6 @@
 {
   "name": "nrel-spa",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "description": "NREL SPA native implementation in JS",
   "main": "index.js",
   "scripts": {
@@ -21,7 +21,5 @@
   "bugs": {
     "url": "https://github.com/ussunnah/nrel-spa/issues"
   },
-  "homepage": "https://github.com/ussunnah/nrel-spa#readme",
+  "homepage": "https://github.com/ussunnah/nrel-spa#readme"
-  "devDependencies": {
-  }
 }

test.js

@@ -1,17 +1,34 @@
 const { getSpa, calcSpa } = require('./index');
 
-// Constants for testing
+const date = new Date();
-const myLat = 40.7128; // Latitude for New York City
+console.log(date)
-const myLng = -74.006; // Longitude for New York City
+
-const nyDate = new Date(new Date().toLocaleString("en-US", { timeZone: "America/New_York" }));
+/* NYC - minimum params
-const myDate = new Date(); // Date object for today with NY time zone
+const city = "New York"
-const myAngles = [63.435]; // Custom angles for twilight calculations
+const lat = 40.7128;
+const lng = -74.006;
+const tz = -5;
+const params = null
+const angles = []
+*/
+
+// Jakarta - all params
+const city = "Jakarta"
+const lat = -6.2088
+const lng = 106.8456
+const tz = 7
+const elevation = 18
+const temperature = 26.56
+const pressure = 1017
+const params = {elevation, temperature, pressure}
+const angles = [63.435]
+
 
 // Get results
-const get = getSpa(myDate, myLat, myLng, null, myAngles);
+const get = getSpa(date, lat, lng, tz, params, angles);
-const calc = calcSpa(myDate, myLat, myLng, null, myAngles);
+const calc = calcSpa(date, lat, lng, tz, params, angles);
 
 // Print results
-console.log("\nTest: Using NYC and current time:\n")
+console.log(`\nTest: ${city} with current Date():\n`)
-console.log("getSpa =", JSON.stringify(get, null, 2), "\n");
+console.log("getSpa =", get, "\n");
-console.log("calcSpa =", JSON.stringify(calc, null, 2), "\n");
+console.log("calcSpa =", calc, "\n");