feat: hashids

src/util/hashids.rs

@@ -0,0 +1,18 @@
+use harsh::Harsh;
+use lazy_static::lazy_static;
+
+lazy_static! {
+    pub static ref HARSH: Harsh = Harsh::builder().length(6).build().unwrap();
+}
+
+pub fn to_hashids(number: u64) -> String {
+    HARSH.encode(&[number])
+}
+
+pub fn to_u64(hash_id: &str) -> Result<u64, &str> {
+    let ids = HARSH
+        .decode(hash_id)
+        .map_err(|_e| "Failed to decode hash ID")?;
+    let id = ids.get(0).ok_or("No ID found in hash ID")?;
+    Ok(*id)
+}