implement info-hash enum

src/api.rs

@@ -1,8 +1,11 @@
+mod info_hash;
+use info_hash::InfoHash;
+
 /// Parse infohash from the source filepath,
-/// decode hash bytes to String array on success.
+/// decode hash bytes to `InfoHash` array on success.
 ///
 /// * return `None` if the `path` is not reachable
-pub fn get(path: &str) -> Option<Vec<String>> {
+pub fn get(path: &str) -> Option<Vec<InfoHash>> {
     use std::io::Read;
     if path.contains("://") {
         todo!("URL sources yet not supported")
@@ -16,12 +19,7 @@ pub fn get(path: &str) -> Option<Vec<String>> {
         if l != L {
             break;
         }
-        r.push(
+        r.push(InfoHash::V1(b[..l].to_vec()))
-            b[..l]
-                .iter()
-                .map(|i| format!("{i:02x}"))
-                .collect::<String>(),
-        )
     }
     Some(r)
 }

src/api/info_hash.rs

@@ -0,0 +1,15 @@
+pub enum InfoHash {
+    V1(Vec<u8>),
+}
+
+impl std::fmt::Display for InfoHash {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            Self::V1(i) => write!(
+                f,
+                "{}",
+                i.iter().map(|b| format!("{b:02x}")).collect::<String>()
+            ),
+        }
+    }
+}

src/main.rs

@@ -98,6 +98,8 @@ async fn main() -> Result<()> {
                     continue;
                 }
             } {
+                // convert to string once
+                let i = i.to_string();
                 // is already indexed?
                 if index.has(&i) {
                     continue;