refactor: remove all use of cast in modules within nim_status

nim_status/account.nim

@@ -26,7 +26,7 @@ proc `$`*(acc: Account): string =
   echo "Addr: ", acc.address
   echo "PrivateKey: ", acc.privateKey
   echo "PublicKey: ", acc.publicKey
-  echo "Path: ", cast[string](acc.path)
+  echo "Path: ", acc.path.string
   echo "Account end"
 
 proc toDisplayString*(account: Account): string =
@@ -38,7 +38,7 @@ proc getSeed*(mnemonic: Mnemonic, password: KeystorePass = ""): KeySeed =
   KeySeed sha512.pbkdf2(mnemonic.string, salt, 2048, 64)
 
 proc splitHMAC*(seed: string, salt: string): ExtendedPrivKeyResult =
-  let hmacResult = sha512.hmac(masterSecret, cast[seq[byte]](seed))
+  let hmacResult = sha512.hmac(masterSecret, seed.toBytes())
   let secretKey = hmacResult.data[0..31]
   let chainCode = hmacResult.data[32..63]
   let sk = SkSecretKey.fromRaw(secretKey)
@@ -78,7 +78,7 @@ proc child(self: ExtendedPrivKey, child: PathLevel): ExtendedPrivKeyResult =
   err($sk.error())
 
 proc derive*(seed: Keyseed, path: KeyPath): SecretKeyResult =
-  var extPrivK = splitHMAC(cast[string](seed), masterSecret).get()
+  var extPrivK = splitHMAC(string.fromBytes(openArray[byte](seed)), masterSecret).get()
 
   for child in path.pathNodes:
     if child.isErr(): return err(child.error().cstring)

nim_status/chats.nim

@@ -167,6 +167,6 @@ proc blockContact*(db: DbConn, contact: Contact): seq[Chat] =
       let encodedMessage = $$lastMessage
       query = fmt"""UPDATE chats SET last_message = ? WHERE id = ?"""
       db.exec(query, encodedMessage, c.id)
-      c.lastMessage = some(cast[seq[byte]](encodedMessage))
+      c.lastMessage = some(encodedMessage.toBytes())
 
   chats

nim_status/mnemonic.nim

@@ -25,7 +25,7 @@ proc `$`*(s: BitSeq): string =
 proc getBits*(b: byte): BitSeq =
   var s = newSeq[byte]()
   for i in 0..7:
-    let bit = cast[byte]((b shr i) and 1)
+    let bit = (b shr i) and 1
     s.insert(bit, 0)
 
   return s
@@ -40,7 +40,7 @@ proc getBits*(byteSeq: seq[byte]): BitSeq =
 proc getBits*(byteStr: string): BitSeq =
   var s: BitSeq
   for b in byteStr:
-    let bits = getBits(cast[byte](b))
+    let bits = getBits(b.byte)
     s = concat(s, bits)
 
   return s
@@ -86,4 +86,3 @@ proc mnemonicPhrase*(strength: int, language: Language): Mnemonic =
 
 
   return Mnemonic words.join(wordSeparator)
-

nim_status/multiaccount.nim

@@ -63,7 +63,7 @@ proc deriveAccounts*(multiAcc: MultiAccount, paths: seq[KeyPath]): seq[Account]
   var accounts: seq[Account]
   for p in paths:
     let skResult = derive(multiAcc.keySeed, p)
-    var acc = buildAccount(cast[PrivateKey](skResult.get()))
+    var acc = buildAccount(PrivateKey(skResult.get()))
     acc.path = p
     accounts.add(acc)
   return accounts
@@ -71,7 +71,7 @@ proc deriveAccounts*(multiAcc: MultiAccount, paths: seq[KeyPath]): seq[Account]
 proc importMnemonic*(mnemonicPhrase: Mnemonic, bip39Passphrase: string): MultiAccount =
   let seed = getSeed(Mnemonic mnemonicPhrase, bip39Passphrase)
   # Ensure seed is within expected limits
-  let lseed = len(cast[seq[byte]](seed))
+  let lseed = openArray[byte](seed).len
   if lseed < MIN_SEED_BYTES or lseed > MAX_SEED_BYTES:
     return MultiAccount()
 

test/mnemonic.nim

@@ -16,7 +16,7 @@ procSuite "mnemonic":
 
     echo "BitSeq: ", s
 
-    let mnemonic = mnemonicPhrase(128, Language.English)
+    let mnemonic = mnemonicPhrase(128, Language.English).string
     echo "phrase:"
     echo mnemonic