Claim fee (#136)

* claim fee

* migration

* migrate

* sdk

* disable fee

* disable claim fee

* cleanup

* cleanup

* fix

* cleanup

* stake

* cleanup

* cleanup

* cleanup

* hour

api/src/state/miner.rs

@@ -1,6 +1,6 @@
 use steel::*;
 
-use crate::state::miner_pda;
+use crate::state::{miner_pda, Treasury};
 
 use super::OreAccount;
 
@@ -42,6 +42,19 @@ impl Miner {
     pub fn pda(&self) -> (Pubkey, u8) {
         miner_pda(self.authority)
     }
+
+    pub fn claim_ore(&mut self, amount: u64, treasury: &mut Treasury) -> u64 {
+        let amount = self.rewards_ore.min(amount);
+        self.rewards_ore -= amount;
+        treasury.total_unclaimed -= amount;
+        amount
+    }
+
+    pub fn claim_sol(&mut self, amount: u64) -> u64 {
+        let amount = self.rewards_sol.min(amount);
+        self.rewards_sol -= amount;
+        amount
+    }
 }
 
 account!(OreAccount, Miner);

api/src/state/treasury.rs

@@ -16,8 +16,11 @@ pub struct Treasury {
     /// The cumulative ORE distributed to stakers, divided by the total stake at the time of distribution.
     pub rewards_factor: Numeric,
 
-    /// The current total amount of ORE staked.
+    /// The current total amount of ORE staking deposits.
     pub total_staked: u64,
+
+    /// The current total amount of unclaimed ORE mining rewards.
+    pub total_unclaimed: u64,
 }
 
 account!(OreAccount, Treasury);