tsk-49: Initialize FileType with file type of the media

src/detection/mod.rs

@@ -6,3 +6,26 @@ pub struct FileType {
     pub mime: String,
     pub file_type: String,
 }
+
+
+/// Initializes a FileType given a filetype passed.
+pub fn init_filetype(filetype: &str) -> Result<FileType, std::io::Error> {
+    if filetype == song::constants::FLAC_TYPE {
+        Ok(FileType {
+            mime: String::from(song::constants::mime::FLAC),
+            file_type: String::from(song::constants::FLAC_TYPE),
+        })
+    } else if filetype == coverart::constants::PNG_TYPE {
+        Ok(FileType {
+            mime: String::from(coverart::constants::mime::PNG),
+            file_type: String::from(coverart::constants::PNG_TYPE),
+        })
+    } else if filetype == coverart::constants::JPEG_TYPE || filetype == coverart::constants::JPG_TYPE {
+        Ok(FileType {
+            mime: String::from(coverart::constants::mime::JPEG),
+            file_type: String::from(coverart::constants::JPEG_TYPE),
+        })
+    } else {
+        Err(std::io::Error::other(format!("Unsupported FileType: {filetype:?}")))
+    }
+}