Filled out function

Add tests

src/meta.rs

@@ -1,4 +1,4 @@
-use lofty::file::AudioFile;
+use lofty::{file::AudioFile, tag::Accessor};
 
 use crate::types;
 
@@ -46,6 +46,61 @@ pub fn get_meta(t: types::Type, filepath: &String) -> Result<String, std::io::Er
     }
 }
 
+pub fn set_meta(
+    t: types::Type,
+    filepath: &String,
+    value: &String,
+) -> Result<String, std::io::Error> {
+    match std::fs::File::open(filepath) {
+        Ok(mut content) => {
+            match lofty::flac::FlacFile::read_from(&mut content, lofty::config::ParseOptions::new())
+            {
+                Ok(mut flac_file) => match flac_file.vorbis_comments_mut() {
+                    Some(vb) => {
+                        match t {
+                            types::Type::Album => {
+                                vb.set_album(value.clone());
+                            }
+                            types::Type::AlbumArtist => {
+                                vb.insert(get_type(t).unwrap(), value.clone());
+                            }
+                            types::Type::Artist => {
+                                vb.set_artist(value.clone());
+                            }
+                            types::Type::Date => {
+                                vb.insert(get_type(t).unwrap(), value.clone());
+                            }
+                            types::Type::Disc => {
+                                vb.set_disk(value.clone().parse().unwrap());
+                            }
+                            types::Type::Genre => {
+                                vb.set_genre(value.clone());
+                            }
+                            types::Type::Title => {
+                                vb.set_title(value.clone());
+                            }
+                            types::Type::Track => {
+                                vb.set_track(value.clone().parse().unwrap());
+                            }
+                        };
+
+                        Ok(value.clone())
+                    }
+                    None => Err(std::io::Error::new(
+                        std::io::ErrorKind::InvalidData,
+                        "No tags found",
+                    )),
+                },
+                Err(err) => Err(std::io::Error::new(
+                    std::io::ErrorKind::InvalidData,
+                    err.to_string(),
+                )),
+            }
+        }
+        Err(err) => Err(err),
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use util::{file_exists, get_full_path};