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>

Cargo.toml

@@ -1,9 +1,12 @@
 [package]
 name = "icarus_meta"
-version = "0.1.0"
+version = "0.1.30"
 edition = "2024"
 rust-version = "1.86"
 
 [dependencies]
 lofty = { version = "0.22.3" }
 icarus_models = { git = "ssh://git@git.kundeng.us/phoenix/icarus_models.git", tag = "v0.4.3" }
+
+[dev-dependencies]
+tempfile = { version = "3.19.1" }

src/types.rs

@@ -1,3 +1,4 @@
+// TODO: Have this derive Debug
 pub enum Type {
     Title,
     Artist,
@@ -7,4 +8,43 @@ pub enum Type {
     Date,
     Track,
     Disc,
+    TrackCount,
+    DiscCount,
+}
+
+#[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()),
+            super::Type::Artist => Ok("ARTIST".to_owned()),
+            super::Type::Album => Ok("ALBUM".to_owned()),
+            super::Type::AlbumArtist => Ok("ALBUMARTIST".to_owned()),
+            super::Type::Genre => Ok("GENRE".to_owned()),
+            super::Type::Date => Ok("DATE".to_owned()),
+            super::Type::Track => Ok("TRACKNUMBER".to_owned()),
+            super::Type::Disc => Ok("DISCNUMBER".to_owned()),
+            super::Type::TrackCount => Ok("TRACKCOUNT".to_owned()),
+            super::Type::DiscCount => Ok("DISCCOUNT".to_owned()),
+        }
+    }
 }