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

Closes #45

Reviewed-on: #48
Co-authored-by: phoenix <kundeng00@pm.me>
Co-committed-by: phoenix <kundeng00@pm.me>

src/detection/mod.rs

@@ -1,7 +1,31 @@
 pub mod coverart;
 pub mod song;
 
+#[derive(Debug, Default)]
 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:?}")))
+    }
+}

src/detection/song.rs

@@ -20,7 +20,7 @@ pub fn file_type_from_filepath(
 }
 
 /// Gets the file type of a Song given it's data
-pub fn file_type_from_data(data: &Vec<u8>) -> Result<crate::detection::FileType, std::io::Error> {
+pub fn file_type_from_data(data: &[u8]) -> Result<crate::detection::FileType, std::io::Error> {
     match infer::get(data) {
         Some(kind) => {
             let mime = kind.mime_type();