refactor

core/api/src/error.rs

@@ -0,0 +1,32 @@
+use num_enum::IntoPrimitive;
+use solana_program::program_error::ProgramError;
+use thiserror::Error;
+
+#[derive(Debug, Error, Clone, Copy, PartialEq, Eq, IntoPrimitive)]
+#[repr(u32)]
+pub enum OreError {
+    #[error("The epoch has ended and needs reset")]
+    NeedsReset = 0,
+    #[error("The provided hash is invalid")]
+    HashInvalid = 1,
+    #[error("The provided hash did not satisfy the minimum required difficulty")]
+    HashTooEasy = 2,
+    #[error("The claim amount cannot be greater than the claimable rewards")]
+    ClaimTooLarge = 3,
+    #[error("The clock time is invalid")]
+    ClockInvalid = 4,
+    #[error("You are trying to submit too soon")]
+    Spam = 5,
+    #[error("Only one hash may be validated per transaction")]
+    TransactionInvalid = 6,
+    #[error("The tolerance cannot exceed i64 max value")]
+    ToleranceOverflow = 7,
+    #[error("The maximum supply has been reached")]
+    MaxSupply = 8,
+}
+
+impl From<OreError> for ProgramError {
+    fn from(e: OreError) -> Self {
+        ProgramError::Custom(e as u32)
+    }
+}