Memory Geolocation (#81)

Author: cal-overflow

src/services/exif.js

@@ -5,7 +5,11 @@ const dayjs = require("dayjs");
 
 const exiftool = new ExifTool({});
 
-const updateExifData = async (fileName, creationDateTimeString) => {
+const updateExifData = async (
+  fileName,
+  creationDateTimeString,
+  geolocationData
+) => {
   const extension = extname(fileName);
   if (extension === ".mp4") {
     // mp4 files are not supported by exiftool
@@ -14,9 +18,15 @@ const updateExifData = async (fileName, creationDateTimeString) => {
   const exifFormattedDate = dayjs
     .utc(creationDateTimeString, "YYYY-MM-DD HH:mm:ss Z")
     .format("YYYY:MM:DD HH:mm:ss");
+
   await exiftool.write(fileName, {
     DateTimeOriginal: exifFormattedDate,
+    GPSLatitude: geolocationData.latitude,
+    GPSLongitude: geolocationData.longitude,
+    GPSLatitudeRef: geolocationData.latitude > 0 ? "North" : "South",
+    GPSLongitudeRef: geolocationData.longitude > 0 ? "East" : "West",
   });
+
   await unlink(`${fileName}_original`);
 };
 

src/services/fileServices.js

@@ -70,7 +70,16 @@ const writeFile = async (file, data) => {
 const updateFileMetadata = (file, memory) => {
   const date = new Date(memory.Date);
   fs.utimes(file, date, date, () => {});
-  return updateExifData(file, memory.Date);
+
+  // parse latitude and longitude 'x, y' from `Latitude, Longitude: x, y` string
+  const geolocationString = memory.Location.split(": ")[1];
+  const [latitude, longitude] = geolocationString.split(", ");
+  const geolocationData = {
+    latitude: parseFloat(latitude),
+    longitude: parseFloat(longitude),
+  };
+
+  return updateExifData(file, memory.Date, geolocationData);
 };
 
 const getOutputInfo = () => {