variable rewards

api/src/state/block.rs

@@ -4,6 +4,12 @@ use crate::state::block_pda;
 
 use super::OreAccount;
 
+// What could be variable?
+// - Payout style (winner take all / difficulty / both)
+// - Payout skew (larger / neutral / smaller)
+// - Jackpot possiblity (yes / no)
+// - Known / unknown
+
 #[repr(C)]
 #[derive(Clone, Copy, Debug, PartialEq, Pod, Zeroable)]
 pub struct Block {
@@ -11,10 +17,11 @@ pub struct Block {
     pub id: u64,
 
     /// The minimum difficulty required for payout.
-    pub min_difficulty: u64,
+    // pub min_difficulty: u64,
 
     /// The reward rate per satisfying hash.
-    pub reward_rate: u64,
+    // pub reward_rate: u64,
+    pub reward: RewardConfig,
 
     /// The hash of the starting slot.
     pub slot_hash: [u8; 32],
@@ -28,10 +35,36 @@ pub struct Block {
     /// The total amount of rewards paid out to miners.
     pub total_rewards: u64,
 
-    /// The total number of hashes submitted to the block.
+    /// The total number of hashes that resulted in a payout.
     pub winning_hashes: u64,
 }
 
+/// Configuration specifying how rewards are paid out.
+#[repr(C)]
+#[derive(Clone, Copy, Debug, PartialEq, Pod, Zeroable)]
+pub struct RewardConfig {
+    /// The reward paid to the submitter of the best hash.
+    pub best_hash_reward: u64,
+
+    /// The authority of the miner who submitted the best hash.
+    pub best_hash_authority: Pubkey,
+
+    /// The best hash.
+    pub best_hash: [u8; 32],
+
+    /// The reward rate paid to hashes satisfying the difficulty threshold.
+    pub difficulty_reward: u64,
+
+    /// The minimum difficulty required for payout.
+    pub difficulty_threshold: u64,
+
+    /// Jackpot amount.
+    pub jackpot_amount: u64,
+
+    /// The threshold difficulty for the jackpot payout.
+    pub jackpot_threshold: u64,
+}
+
 impl Block {
     pub fn pda(&self) -> (Pubkey, u8) {
         block_pda(self.id)