changed TallyID to a struct instead of a type alias

src/store/mod.rs

@@ -1,48 +1,10 @@
-use heapless::String;
-
 pub use id_mapping::{IDMapping, Name};
 pub use id_store::{IDStore,AttendanceDay};
 
 mod id_mapping;
 pub mod persistence;
 mod id_store;
+pub mod tally_id;
 
-pub type TallyID = [u8; 6];
 pub type Date = [u8; 10];
 
-pub fn hex_string_to_tally_id(s: &str) -> Option<TallyID> {
-    let bytes = s.as_bytes();
-    if bytes.len() != 12 {
-        return None;
-    }
-
-    let mut out: TallyID = [0;6];
-    for i in 0..6 {
-        let hi = hex_val(bytes[2 * i])?;
-        let lo = hex_val(bytes[2 * i + 1])?;
-        out[i] = (hi << 4) | lo;
-    }
-    Some(out)
-}
-
-pub fn tally_id_to_hex_string(bytes: TallyID) -> Option<String<12>> {
-    const HEX_CHARS: &[u8; 16] = b"0123456789abcdef";
-    let mut s: String<12> = String::new();
-
-    for &b in &bytes {
-        s.push(HEX_CHARS[(b >> 4) as usize] as char).ok()?;
-        s.push(HEX_CHARS[(b & 0x0F) as usize] as char).ok()?;
-    }
-
-    Some(s)
-}
-
-fn hex_val(b: u8) -> Option<u8> {
-    match b {
-        b'0'..=b'9' => Some(b - b'0'),
-        b'a'..=b'f' => Some(b - b'a' + 10),
-        b'A'..=b'F' => Some(b - b'A' + 10),
-        _ => None,
-    }
-}
-