Refactor file type checking for better consistency

Fix tests

src/exif.rs

@@ -7,8 +7,7 @@ use exif::{In, Reader, Tag, Value};
 use log::debug;
 use serde::{Deserialize, Serialize};
 
-#[derive(Debug, Clone, Serialize, Deserialize)]
-#[derive(Default)]
+#[derive(Debug, Clone, Serialize, Deserialize, Default)]
 pub struct ExifData {
     pub camera_make: Option<String>,
     pub camera_model: Option<String>,
@@ -26,7 +25,6 @@ pub struct ExifData {
     pub date_taken: Option<i64>,
 }
 
-
 pub fn supports_exif(path: &Path) -> bool {
     if let Some(ext) = path.extension() {
         let ext_lower = ext.to_string_lossy().to_lowercase();
@@ -248,9 +246,10 @@ fn extract_gps_altitude(exif: &exif::Exif) -> Option<f64> {
                     // Check if below sea level
                     if let Some(ref_field) = exif.get_field(Tag::GPSAltitudeRef, In::PRIMARY)
                         && let Some(ref_val) = get_u32_value(ref_field)
-                            && ref_val == 1 {
-                                return Some(-altitude);
-                            }
+                        && ref_val == 1
+                    {
+                        return Some(-altitude);
+                    }
 
                     Some(altitude)
                 }