Added function to set value for metadata for known types (#29)

Reviewed-on: #29
Co-authored-by: phoenix <kundeng00@pm.me>
Co-committed-by: phoenix <kundeng00@pm.me>

src/meta.rs

@@ -135,9 +135,11 @@ pub mod coverart {
 }
 
 pub mod metadata {
+    // TODO: Move this at the end after the non-std crates
     use crate::types;
     use lofty::file::AudioFile;
     use lofty::tag::Accessor;
+    use lofty::tag::TagExt;
 
     pub fn get_meta(t: types::Type, filepath: &String) -> Result<String, std::io::Error> {
         match std::fs::File::open(filepath) {
@@ -219,7 +221,14 @@ pub mod metadata {
                                 }
                             };
 
-                            Ok(value.to_owned())
+                            match vb.save_to_path(filepath, lofty::config::WriteOptions::default())
+                            {
+                                Ok(_) => Ok(value.to_owned()),
+                                Err(err) => Err(std::io::Error::new(
+                                    std::io::ErrorKind::InvalidData,
+                                    err.to_string(),
+                                )),
+                            }
                         }
                         None => Err(std::io::Error::new(
                             std::io::ErrorKind::InvalidData,
@@ -235,6 +244,23 @@ pub mod metadata {
             Err(err) => Err(err),
         }
     }
+
+    pub fn parse_value(value: types::MetadataType) -> String {
+        match value {
+            types::MetadataType::String(val) => val,
+            types::MetadataType::Int(val) => val.to_string(),
+        }
+    }
+
+    pub fn set_meta_value(
+        t: types::Type,
+        filepath: &String,
+        value: types::MetadataType,
+    ) -> Result<String, std::io::Error> {
+        let parsed_val = parse_value(value);
+
+        set_meta(t, filepath, &parsed_val)
+    }
 }
 
 #[cfg(test)]

src/types.rs

@@ -1,3 +1,4 @@
+// TODO: Have this derive Debug
 pub enum Type {
     Title,
     Artist,
@@ -11,8 +12,27 @@ pub enum Type {
     DiscCount,
 }
 
-pub mod access {
+#[derive(Debug)]
+pub enum MetadataType {
+    String(String),
+    Int(i32),
+}
 
+impl MetadataType {
+    pub fn from_std_str(s: &str) -> Self {
+        MetadataType::String(s.to_string())
+    }
+
+    pub fn from_string(s: String) -> Self {
+        MetadataType::String(s)
+    }
+
+    pub fn from_int(i: i32) -> Self {
+        MetadataType::Int(i)
+    }
+}
+
+pub mod access {
     pub fn get_type(t: super::Type) -> Result<String, std::io::Error> {
         match t {
             super::Type::Title => Ok("TITLE".to_owned()),